CN116081780A - electro-Fenton reaction device - Google Patents
electro-Fenton reaction device Download PDFInfo
- Publication number
- CN116081780A CN116081780A CN202310232804.3A CN202310232804A CN116081780A CN 116081780 A CN116081780 A CN 116081780A CN 202310232804 A CN202310232804 A CN 202310232804A CN 116081780 A CN116081780 A CN 116081780A
- Authority
- CN
- China
- Prior art keywords
- electrolytic cell
- electro
- cod
- fenton reaction
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000523 sample Substances 0.000 claims description 37
- 238000012544 monitoring process Methods 0.000 claims description 26
- 230000009467 reduction Effects 0.000 claims description 7
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 21
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 17
- 230000003647 oxidation Effects 0.000 description 12
- 238000007254 oxidation reaction Methods 0.000 description 12
- 230000035484 reaction time Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- MGZTXXNFBIUONY-UHFFFAOYSA-N hydrogen peroxide;iron(2+);sulfuric acid Chemical compound [Fe+2].OO.OS(O)(=O)=O MGZTXXNFBIUONY-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/028—Tortuous
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to an electro-Fenton reaction device, which comprises an electrolytic cell, wherein a water inlet and a water outlet are formed in the electrolytic cell, a positive electrode plate and a negative electrode plate are arranged in the electrolytic cell, the negative electrode plate is a ferroelectric electrode plate, more than 2 insulating plates are arranged in the electrolytic cell, the electrolytic cell is arranged in a staggered way at intervals, the internal space of the electrolytic cell is divided into more than 2 galleries, all galleries are connected in series to form a large snake-shaped flow passage, one end of the large snake-shaped flow passage is connected with the water inlet, and the other end of the large snake-shaped flow passage is connected with the water outlet; the negative electrode plates and the positive electrode plates are alternately arranged in each gallery at intervals to divide each gallery into small serpentine flow passages. The device has high treatment efficiency on medium-low concentration sewage, low energy consumption and short treatment period.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and relates to an electro-Fenton reaction device.
Background
Biodegradability of wastewater, also called Biodegradability of wastewater, i.e., the degree of difficulty in which organic pollutants in wastewater are biodegraded, is one of the important characteristics of wastewater.
The main reason for the biodegradability difference of the wastewater is that the organic matters contained in the wastewater are not only decomposed and utilized by microorganisms, but also are not easily degraded by microorganisms and even inhibit the growth of microorganisms, and the biodegradability of the organic matters and the relative content in the wastewater determine the feasibility and the difficulty of the wastewater to be treated by adopting a biological method (commonly referred to as aerobic biological treatment). In certain cases, the biodegradability of the wastewater reflects the utilization rate of the organic pollutants by microorganisms in the treatment process, in addition to the availability and the utilization degree of the organic pollutants in the wastewater: when the microbial decomposition and utilization rate is too low, the treatment process takes too long, which is difficult to achieve in practical wastewater engineering, and therefore, it is generally considered that the biodegradability of such wastewater is not high.
Industrial wastewater is not directly treated by biological methods due to a large amount of pollutants which are difficult to degrade, toxic and harmful. The most mature and most commonly used advanced oxidation method at present is Fenton oxidation technology, but the technology needs to adjust acid and alkali, has complicated steps, large dosage of medicament, large mud yield and high operation cost.
electro-Fenton is one of the electrochemical treatment systems developed based on the action of Fenton's reagent. As the advanced oxidation technology of sewage treatment, the electro-Fenton oxidation technology is shown in figure 1, and the main mechanism is H generated by cathodic oxygen reduction 2 O 2 And with Fe in the system 2+ Hydroxyl free radicals (. OH) are generated by reaction, and then pollutants are removed by oxidation; the oxidation removal mechanism mainly utilizes active hydroxyl radicals to attack and react with macromolecular organic matters so as to destroy the molecular structure of the organic matters and convert the organic matters difficult to degrade into CO 2 、H 2 O, small organic molecules and the like, achieves the aim of removing toxic and harmful pollutants by oxidation, and realizes the efficient oxidation treatment of the pollutants.
The mechanism of the electro-Fenton oxidation technology for degrading and removing pollutants is based on the strong oxidation action of hydroxyl radicals, and the mode of generating hydroxyl is different due to different forms of electro-Fenton, but in the degradation of the pollutants, the pollutants are mainly oxidized and decomposed by the strong oxidation action of hydroxyl radicals generated by bipolar action, so that the aim of eliminating pollution is fulfilled.
The electro-Fenton oxidation technology has the advantages of simplicity, rapidness, flocculation, no secondary pollution and the like on the wastewater, and can effectively degrade various toxic, harmful and refractory organic pollutants such as ethers, phenols, aromatic amines, polycyclic aromatics and the like.
Compared with the traditional Fenton technology and electrochemical oxidation technology, the electro-Fenton technology has the following main advantages:
(1) electro-Fenton can directly synthesize H by cathode electrochemical method 2 O 2 Effectively avoid transporting, storing and using high concentration H in the traditional Fenton technology 2 O 2 Risk brought about;
(2) The electro-Fenton can stably generate hydroxyl free radicals, so that the phenomenon of uneven pollutant degradation in the chemical Fenton reaction is overcome, and the continuous high efficiency of the whole Fenton reaction is ensured;
(3) The electro-Fenton does not need to add ferrous sulfate and hydrogen peroxide in the reaction process, the dosage is small, the cost of the medicament is obviously reduced, and only a small amount of sludge is generated, which is 1/5-1/10 of the sludge of the traditional Fenton technology;
(4) The electro-Fenton equipment is simple, the occupied area is small, the residence time is shorter than that of chemical Fenton, the reaction rate is high, and the operation is simple and convenient.
At the same time, however, current electro-Fenton devices generally suffer from the following drawbacks:
(1) The electric energy utilization rate is not high;
(2) The electro-Fenton reaction device has low treatment efficiency on medium-low concentration sewage;
(3) The treatment period is long.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an electro-Fenton reaction device which can effectively improve the biochemical reaction activity of medium-low concentration wastewater, improve the wastewater treatment efficiency, has lower operation and maintenance cost of the whole process, and has the advantages of simple process, shorter treatment period and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the electro-Fenton reaction device comprises an electrolytic cell, wherein a water inlet and a water outlet are formed in the electrolytic cell, a positive electrode plate and a negative electrode plate are arranged in the electrolytic cell, the negative electrode plate is a ferroelectric plate, more than 2 insulating plates are arranged in the electrolytic cell, the electrolytic cell is arranged in a staggered way at intervals, the internal space of the electrolytic cell is divided into more than 2 galleries, all galleries are connected in series to form a large serpentine flow passage, one end of the large serpentine flow passage is connected with the water inlet, and the other end of the large serpentine flow passage is connected with the water outlet; the negative electrode plates and the positive electrode plates are alternately arranged in each gallery at intervals to divide each gallery into small serpentine flow passages.
The invention aims to solve the technical problems that an electro-Fenton reaction device in the prior art has low treatment efficiency on medium-low concentration sewage and long treatment period, and has the following specific principles: because the interval of positive electrode plate and negative electrode plate is crisscross to set up in the electrolytic cell, can form a plurality of electric Fenton reaction zone in inside on the one hand, effectively improved the utilization ratio of electric energy and the treatment effeciency of sewage, another can make sewage flow through the electrode plate subassembly in order in the space of alternation, reach continuous even reaction, make COD decline more even thoroughly, avoid the condition that the reaction is incomplete and excessive because of sewage and electrode plate contact is inhomogeneous to appear. The electro-Fenton reaction device can lead sewage to sequentially flow through each small electro-Fenton reaction area of the electrode plate component in a serpentine manner, prolongs the electrolytic reaction process and the reaction time in a limited space, has small occupied area and low cost, can achieve the purpose of continuous and efficient treatment of medium-low concentration sewage, has relatively clean treatment process, only generates a small amount of sludge, is easy to collect, is suitable for the treatment of medium-low concentration sewage, can directly degrade COD and degrade high molecular structure organic matters into small molecular organic matters which are easy to biodegrade, improves the B/C ratio, is easy to combine with other methods, and realizes the comprehensive treatment of the sewage. The staggered arrangement of the positive electrode plate and the negative electrode plate effectively increases the electro-Fenton reaction time in a mode of prolonging the residence time of the wastewater in the reaction device, so that the wastewater with medium and low concentration is more fully treated. The staggered arrangement of the positive electrode plates and the negative electrode plates ensures that the electro-Fenton reaction is not limited to one end of the electrode plates, and the utilization rate of electric energy is effectively improved in a limited reaction device by a mode that the small electro-Fenton reaction tanks are formed by two pairs of the positive electrode plates and the negative electrode plates. Meanwhile, the multistage electrolytic reaction formed in the interior can effectively improve the treatment efficiency of the middle-low concentration wastewater (compared with the single-polar plate electro-Fenton process).
As a preferable technical scheme:
the electro-Fenton reaction device comprises an electrolytic cell, wherein the electrolytic cell comprises an upper cover and a lower bottom, and insulating plates are vertical plates and are arranged in a staggered manner along the horizontal direction.
In the electro-Fenton reaction device, one end of the insulating plate is connected with the upper cover or the lower bottom, and the other end of the insulating plate is positioned in the electrolytic cell.
An electro-Fenton reaction device as described above, the electrolytic cell comprising a left side wall and a right side wall; the negative electrode plates and the positive electrode plates are horizontal plates and are alternately arranged in the gallery along the vertical direction; the left end of the negative electrode plate is connected with the left side wall of the electrolytic cell or the right side wall of the insulating plate, and the right end of the negative electrode plate is positioned in the electrolytic cell; the right end of the positive electrode plate is connected with the right side wall of the electrolytic cell or the left side wall of the insulating plate, and the left end is positioned in the electrolytic cell; the water inlet is positioned below the electrolytic cell, and the water outlet is positioned above the electrolytic cell; the electro-Fenton reaction device has an up-flow structure, so that sludge generated after reaction is deposited at the bottom, and the collection is convenient.
An electro-Fenton reaction device as described above, the electro-Fenton reaction device further comprising a power supply, a central control device, the power supply comprising a positive electrode and a negative electrode; a COD on-line monitoring probe is arranged in the electrolytic cell, and an electromagnetic control valve is arranged on the water outlet; the COD on-line monitoring probe is connected with the central control device, the central control device is connected with the electromagnetic control valve, and the central control device is used for receiving information sent by the COD on-line monitoring probe and controlling the electromagnetic control valve to be opened and closed.
According to the electro-Fenton reaction device, the left side wall of the insulating plate is connected with the right end of the positive electrode plate through the up-down moving device, and the up-down moving device is used for driving the positive electrode plate to move up and down.
In the electro-Fenton reaction device, all positive electrode plates are arranged at equal intervals in each gallery, and all negative electrode plates are arranged at equal intervals.
In the electro-Fenton reaction device, a resistance type position sensor for detecting the distance between two adjacent positive electrode plates connected with the left side wall of an insulating plate in real time is arranged in each gallery; in each gallery, all negative electrode plates are connected with the negative electrodes at the same time, all the resistance type position sensors are connected with the positive electrodes after being connected in series, and all the resistance type position sensors are connected with a signal receiving and conducting device at the same time; the signal receiving and conducting devices in all galleries are simultaneously connected with the central control device;
the up-down moving device is connected with the central control device;
the central control device is also used for receiving the information sent by the signal receiving and conducting device, analyzing the information together with the information sent by the COD on-line monitoring probe, judging the moving direction and the moving distance of the up-down moving device required for inhibiting the reduction of the COD removal rate, and controlling the up-down moving device to move according to the moving direction and the moving distance;
wherein->
Represents the COD removal rate at reaction time t, < + >>
Represents the COD value at the beginning of the reaction +.>
Represents the COD value at the reaction time t;
or further, the electro-Fenton reaction device also comprises a display and a polar plate distance control device; the display is connected with the COD on-line monitoring probe and used for displaying information sent by the COD on-line monitoring probe in real time; the pole plate distance control device is connected with the up-down moving device and used for controlling the moving direction and the moving distance of the up-down moving device; an operator can adjust the moving direction and the moving distance of the up-down moving device in real time according to the information sent by the COD on-line monitoring probe displayed by the display, so as to achieve the purpose of inhibiting the reduction of the COD removal rate;
the two modes for adjusting the distance between the polar plates are an automatic mode and a manual mode respectively, and one mode is selected for use according to the requirement.
The control method of the automatic mode comprises the following steps: the sewage filling device (at the moment, the water inlet and outlet control valve of the reaction device is in a closed state) is taken as the program starting time, and the COD value (recorded
) And the current value of each gallery (the internal circuit diagram of each gallery is shown in fig. 3, and since all positive electrode plates are arranged at equal intervals and all negative electrode plates are arranged at equal intervals in each gallery, and vice versa, the positive electrode plate interval can be adjusted according to the current value>
，/>
Is the first
Number of positive electrode plates in the respective gallery, +.>
Is->
The unit of the current value conducted by each resistance type position sensor in each corridor is A; then the positive electrode plate spacing +.>
Uniform electric field +.>
，/>
The unit is V, which is the applied voltage value of the resistance type position sensor; />
Is the cross-sectional area of the resistance type position sensor, and the unit is m 2 ；/>
The conductivity of the resistance type position sensor is shown as omega-m; />
The voltage is externally applied to the positive and negative polar plates, and the unit is V; />
The unit is m, which is the distance between the positive plate and the negative plate; meanwhile, because the positions of the negative electrode plates are fixed, only the positive electrode plates are moved, when the device is started each time, the device obtains the initial positive and negative plate distance according to the field intensity (one group from left to right) between the positive and negative plates at the moment>
After the positive and negative plate spacing is adjusted every time, the positive and negative plate spacing is +>
，/>
The unit is m for the distance between two adjacent positive electrode plates after adjustment;
the unit is m, which is the initial distance between two adjacent positive electrode plates; and accordingly back-push the field intensity of the electrode plate at this time +.>
The data are calculated by the central control device 20, and the COD removal rate to be achieved is set to be +.>
COD value at reaction time t is expressed as +.>
The COD removal rate at this time was calculated by the central control apparatus 20 and is recorded as +.>
（/>
) Then comparing the set value with the actual value, and opening the inlet and outlet electromagnetic control valve of the device only when the actual value is not greater than the set value; otherwise, the central control device controls the voltage and the polar plate spacing to adjust the electric Fenton reaction condition, so as to adjust and control the removal rate of COD to reach or be smaller than a set value (if the initial removal rate meets the requirement and the node removal rate at a later time does not meet the requirement, the water inlet and outlet electric control valve is also closed), the program automatically closes the water outlet electromagnetic control valve when the COD on-line monitoring probe has no indication, and the program is opened again when the sewage enters and can maintain the flowing state of the whole device (outlet COD can be measured); the flow of the algorithm is shown in fig. 4, and is approximately as follows:
(1) Starting;
(2) The COD removal efficiency to be achieved by the setting device is recorded as
；
(3) The COD value at this time was recorded as
；
(4) Regulating voltage U and plate spacing
(embodied in the form of a current);
(5) The central control device receives the information transmitted by the signal receiving and transmitting devices 21 summarized by the resistance type position sensor 19 into each corridor, receives the information of the current t moment transmitted by the COD on-line monitoring probe and marks the information as
；
(6) The COD removal rate at this time was calculated and recorded as
；
(7) Judging
Whether or not to be less than->
If yes, automatically opening the water inlet and outlet electromagnetic control valve; otherwise, returning to the step (3);
(8) Judging
If the water outlet electromagnetic control valve is empty, the water outlet electromagnetic control valve is automatically closed; otherwise, returning to the step (7), and maintaining the opening state of the water outlet electromagnetic control valve.
The manual control process mode is as follows: the first sewage filling device (at this time, the water outlet electromagnetic control valve of the reaction device is in a closed state) is taken as a starting adjusting node, the water inlet electromagnetic control valve is closed, and the central control device 20 records the COD value (record
) And the current value of each corridor, the COD removal rate to be achieved is set as +.>
COD value at reaction time t is expressed as +.>
The COD removal rate at this time was calculated by the central control apparatus 20 and is recorded as +.>
（/>
) The Fenton reaction condition is regulated by controlling the voltage and the plate distance by using the corresponding knob on the central control device 20, and the central control device 20 calculates the reaction conditions (positive and negative plate distance, field intensity, current density and the like) at the moment during regulation) And the control device is reacted on the display 1, so that the removal rate of COD is regulated and controlled to be equal to or smaller than a set value, then the set value is compared with an actual value according to the reading on the display, and according to the actual situation, an inlet and outlet electromagnetic control valve of the control device is opened or not (if the initial removal rate meets the requirement, and when the removal rate of a node at a later period does not meet the requirement, the inlet and outlet electromagnetic control valve is automatically closed, and an alarm is given to prompt that the adjustment is needed).
The second technical problem to be solved by the invention is that the electric energy utilization rate of the electro-Fenton reaction device in the prior art is not high, and the problem is effectively solved by the staggered configuration of the porous multipolar plates and the matching of the COD on-line monitoring probe, the central control device and the electromagnetic control valve.
In the electro-Fenton reaction device, the positive electrode plate is a carbon electrode plate.
According to the electro-Fenton reaction device, the ferroelectric electrode plate and the carbon electrode plate are porous electrode plates;
the porous electrode is prepared by mixing a powdery active substance with high specific surface area and solid particles with conductivity through pressing, sintering or formation and the like, and the porous electrode is adopted to greatly improve the effective reaction area of the electrode, reduce the current density and facilitate the generation and accumulation of Yu OH from the viewpoint of electrochemical polarization, thereby reducing the electrochemical polarization and improving the output performance (voltage and current) of power supply equipment. In addition, the thickness of the diffusion layer can be reduced by adopting the porous electrode, so that the utilization rate of the active material is improved.
The gaps in the porous electrode plate can enable electrolyte to better contact the electrode surface, so that the surface area is increased, and OH can more easily pass through the electrode/electrolyte surface. While the "walls" between the pores are thinner, the diffusion path of OH in the solid phase is reduced, and a large number of voids can provide room for the expansion of the active material, which can accommodate more OH. The application of the porous electrode plate can maximize the utilization rate of OH, so that the treatment efficiency of the intermediate and low concentration wastewater is improved (compared with the existing electric Fenton treatment of the intermediate and low concentration wastewater on the market).
According to the electro-Fenton reaction device, the pH probe is arranged in the electrolytic cell and connected with the central control device, and the central control device is also used for receiving information sent by the pH probe and controlling the electromagnetic control valve to be opened and closed so as to adjust the reaction time.
An electro-Fenton reaction device as described above, H is arranged in the electrolytic cell 2 O 2 Dosing device and pH regulator dosing device, H 2 O 2 Dosing device and H positioned outside electrolytic cell 2 O 2 The pH regulator dosing device is connected with the pH regulator dosing control device outside the electrolytic cell, so that the optimal reaction condition of the electro-Fenton can be conveniently maintained.
The electro-Fenton reaction device is characterized in that porous polar plates which are arranged in a staggered manner are arranged in the electrolytic cell and are connected with the COD on-line monitoring probe, the central control device and the electromagnetic control valve, so that the central control device can directly regulate and control related parameters in the reaction device to realize the maximization of the electric energy utilization rate, and can also be manually regulated according to related readings, and meanwhile, the pH probe, the pH regulator dosing device and the H are used for regulating the electric energy utilization rate 2 O 2 The configuration of the dosing control means facilitates maintenance of optimal reaction conditions of electro-Fenton.
An electro-Fenton reaction device as described above, wherein the number of negative electrode plates or positive electrode plates is 6 or more; under the condition that the flow rate of the sewage is unchanged, the number of the electrolysis areas can be changed by increasing or reducing the number of the positive electrode plates and the negative electrode plates, the reaction time of the sewage in the electrode plate assembly can be changed, and the condition that the sewage is not thorough or excessively reacted in the reaction process of the electro-Fenton reaction area can be avoided, so that the electro-Fenton reaction area is applicable to different conditions, wide in application range and convenient to adjust.
Advantageous effects
(1) The electro-Fenton reaction device has high treatment efficiency on medium-low concentration sewage and short treatment period;
(2) The electro-Fenton reaction device can regulate and control the pH value;
(3) The electro-Fenton reaction device can enable the wastewater to be in a three-dimensional flowing state, and is beneficial to the full reaction of pollutants in the water;
(4) The design of the large serpentine flow channel and the small serpentine flow channel in the electro-Fenton reaction device ensures the completion of the electro-Fenton reaction;
(5) The real-time adjustment of the plate distance in the electro-Fenton reaction device can ensure the controllability of the electro-Fenton reaction efficiency.
Drawings
FIG. 1 is an electro-Fenton schematic;
FIG. 2 is an electro-Fenton reaction device according to the present invention;
FIG. 3 is a schematic diagram of the internal circuitry of the gallery (only a portion of the structure is shown);
FIG. 4 is a flow chart of a control method of the automatic mode;
wherein, the 1-display, the 2-pH regulator dosing control device, the 3-voltage control device, the 4-current control device, the 5-positive electrode, the 6-negative electrode and the 7-H 2 O 2 Medicine adding control device, 8-water inlet, 9-pH regulator medicine adding device and 10-H 2 O 2 The device comprises a dosing device, an 11-ferroelectric polar plate, a 12-pH probe, a 13-COD on-line monitoring probe, a 14-electromagnetic control valve, a 15-water outlet, a 16-carbon polar plate, a 17-polar plate distance control device, an 18-rotating speed control device, a 19-resistance type position sensor, a 20-central control device and a 21-signal receiving and transmitting device.
Detailed Description
The invention is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
The preparation method of the porous ferroelectric electrode plate of the device is described in reference 1 (research on the materials of the porous electrode plate prepared by a direct cold-pressing method [ J ]. The university of Kunming university (theoretical industry edition), 2002:26-28.), and specifically comprises the following steps: uniformly mixing NaCl with the granularity of 0.15mm with Fe powder and 10% HCl and a small amount of ethanol according to the mass ratio of 75:16.8:8:0.2, pressing into a thin plate with the thickness of 5mm under the pressure of 360MPa, and then placing the thin plate into hot water for ultrasonic leaching so as to accelerate the dissolution of NaCl in the thin plate, thus finally obtaining the porous ferroelectric electrode plate used by the device.
The method for producing the porous carbon electrode plate of the present apparatus is described in reference 2 (porous carbon plate for fuel cell electrode [ J ]. University of northeast: natural science edition, 2000:207-209.): uniformly mixing carbon fiber powder, refined absorbent cotton (pre-sheared, screened by a 45-target standard sieve), phenolic resin and methanol according to the mass ratio of 59:8:18:15, drying at 80 ℃ for 2 hours, crushing and screening (a 35-mesh standard sieve), filling the powder into a mould (100 mm multiplied by 5 mm), hot-pressing for 5 minutes under the condition of 170 ℃ and 9MPa to obtain a porous plate precursor, then maintaining for 1.5 hours at 1350 ℃ under argon atmosphere, firing to obtain a porous carbon plate, finally immersing in 35% PTFE (PTFE is polytetrafluoroethylene, 35% is volume fraction, and solvent is water) for 30 minutes, and heating for 20 minutes at 340 ℃ after airing to finally obtain the porous carbon plate with hydrophobic property.
An electro-Fenton reaction device, as shown in figure 2, mainly comprises a power supply (comprising a positive electrode 5 and a negative electrode 6), a central control device 20, a display 1, a pH regulator dosing control device 2, a voltage control device 3, a current control device 4 and H 2 O 2 Dosing control device 7, electrolytic cell, insulating board, positive electrode plate, negative electrode plate, pH probe 12, COD on-line monitoring probe 13, electromagnetic control valve 14, H 2 O 2 The device comprises a dosing device 10, a pH regulator dosing device 9, a polar plate distance control device 17 and a rotating speed control device 18;
the electrolytic cell comprises a left side wall, a right side wall, an upper cover and a lower bottom;
the positive electrode 5 and the negative electrode 6 are positioned outside the electrolytic cell, the positive electrode is connected with the positive electrode plate, and the negative electrode 6 is connected with the negative electrode plate;
the negative electrode plate is a ferroelectric electrode plate 11, the positive electrode plate is a carbon electrode plate 16, and the ferroelectric electrode plate 11 and the carbon electrode plate 16 are porous electrode plates;
the electrolytic cell is internally provided with more than 2 insulating plates which are vertical plates, the insulating plates are arranged in the electrolytic cell at intervals along the horizontal direction, one end of each insulating plate is connected with the upper cover or the lower bottom, the other end of each insulating plate is positioned in the electrolytic cell, the inner space of the electrolytic cell is divided into more than 2 galleries by the insulating plates, all galleries are connected in series to form a large serpentine flow passage, one end of the large serpentine flow passage is connected with a water inlet 8 below the electrolytic cell, the other end of the large serpentine flow passage is connected with a water outlet 15 above the electrolytic cell, and an electromagnetic control valve 14 is arranged on the water outlet 15;
the negative electrode plates and the positive electrode plates are horizontal plates, are alternately arranged in each gallery along the vertical direction, and the left ends of the negative electrode plates are connected with the left side wall of the electrolytic cell or the right side wall of the insulating plate, and the right ends of the negative electrode plates are positioned in the electrolytic cell; the right end of the positive electrode plate is connected with the right side wall of the electrolytic cell or the left side wall of the insulating plate, and the left end is positioned in the electrolytic cell to divide each gallery into small serpentine flow channels; the left side wall of the insulating plate is connected with the right end of the positive electrode plate through an up-and-down moving device, and the up-and-down moving device is used for driving the positive electrode plate to move up and down;
the COD on-line monitoring probe 13 is arranged in the electrolytic cell, the COD on-line monitoring probe 13 is connected with the central control device 20, the central control device 20 is connected with the electromagnetic control valve 14, and the central control device 20 is used for receiving information sent by the COD on-line monitoring probe 13 and controlling the electromagnetic control valve 14 to be opened and closed;
in each gallery, all positive electrode plates are arranged at equal intervals, and all negative electrode plates are arranged at equal intervals;
a resistance type position sensor 19 for detecting the distance between two adjacent positive electrode plates connected with the left side wall of the insulating plate in real time is arranged in each gallery; in each gallery, all negative electrode plates are connected with the negative electrode 6 at the same time, all the resistance type position sensors 19 are connected with the positive electrode 5 after being connected in series, and all the resistance type position sensors 19 are connected with a signal receiving and conducting device 21 at the same time; the signal receiving and transmitting devices 21 in all galleries are simultaneously connected with the central control device 20;
the up-and-down moving devices are connected with the central control device 20;
the central control device 20 is also used for receiving the information sent by the signal receiving and conducting device 21, analyzing the information together with the information sent by the COD on-line monitoring probe 13, and judging that the reduction of the COD removal rate is required to be restrainedThe up-and-down moving device moves in the moving direction and the moving distance, and the up-and-down moving device is controlled to move according to the moving direction and the moving distance;
wherein->
Represents the COD removal rate at reaction time t, < + >>
Represents the COD value at the beginning of the reaction +.>
Represents the COD value at the reaction time t;
the display 1 is connected with the COD on-line monitoring probe 13 and is used for displaying information sent by the COD on-line monitoring probe 13 in real time; the pole plate distance control device 17 is connected with the up-and-down moving device and is used for controlling the moving direction and the moving distance of the up-and-down moving device; an operator can adjust the moving direction and the moving distance of the up-down moving device in real time according to the information sent by the COD on-line monitoring probe displayed by the display, so as to achieve the purpose of inhibiting the reduction of the COD removal rate;
the two modes for adjusting the distance between the polar plates are an automatic mode and a manual mode respectively, and one mode is selected for use according to the requirement;
the pH probe 12 is arranged in the electrolytic cell, the pH probe 12 is connected with the central control device 20, and the central control device 20 is also used for receiving information sent by the pH probe 12 and controlling the electromagnetic control valve 14 to be opened and closed;
H 2 O 2 the dosing device 10 and the pH regulator dosing device 9 are arranged in the electrolytic cell, H 2 O 2 Dosing device 10 and H located outside the electrolytic cell 2 O 2 The dosing control device 7 is connected, and the pH regulator dosing device 9 is connected with the pH regulator dosing control device 2 outside the electrolytic cell;
the display 1 is used as a remote output port to provide conditions for the user to control the reaction device in real time, except that the display can be adjusted and moved according to the related displayThe moving distance can also be accurately utilized by the voltage control device 3, the current control devices 4 and H according to the related displayed indication 2 O 2 The current, voltage and H in the reaction device are regulated by a dosing device 10, a pH regulator dosing device 9, a polar plate distance control device 17 and a rotating speed control device 18 2 O 2 The reaction conditions such as concentration, pH value, rotating speed and the like ensure that the whole electro-Fenton reaction is always kept under the optimal conditions.
The apparatus of the present invention and its effect on wastewater treatment will now be briefly described by means of specific examples:
example 1
The number of insulating plates, the number and distribution of positive electrode plates and the number and distribution of negative electrode plates are the same as those of figure 2, the thicknesses of the positive electrode plates and the negative electrode plates are 5mm, and the initial spacing between the adjacent positive electrode plates and the adjacent negative electrode plates is 10mm.
A method for treating organic wastewater, when 2000mL of organic wastewater with COD concentration of 500mg/L is treated by using an automatic mode of an electro-Fenton reaction device of the embodiment, a DC voltage of 36V is used as a power supply, and the current density of a ferroelectric electrode plate is 60A/m 2 The residence time (residence time is hydraulic residence time, in other words, reaction time of sewage) is 40min, and the rotating speed is controlled at 3000r/min; in the treatment process, the device needs to firstly throw in 6mL H with the volume fraction of 30 percent 2 O 2 And maintain the pH at 3, and due to the characteristics of the electro-Fenton reaction, the negative electrode thereof generates Fe 2+ The process of entering the wastewater solution is continuous, fe 2+ The activity is stronger, and the contact area of the porous electrode designed as OH of the device for generating and containing is larger, thus improving H 2 O 2 At the same time, the design of the up-down displacement device can improve the efficiency of the electro-Fenton reaction by changing the electric field intensity between the polar plates, and can ensure the OH and Fe 2+ The movement between polar plates is quickened, the quick degradation of sewage COD is ensured, the design of the large serpentine flow channel and the small serpentine flow channel provides a three-dimensional movement mode for the moving water body, and the reaction is ensured to be full, so the effect of removing the sewage COD is more clearAnd (5) displaying.
At the end of the reaction, the removal rate of COD by the electro-Fenton reaction device was 86.3%.
Comparative example 1
A method for treating organic wastewater is basically the same as in example 1, except that the automatic mode of the electro-Fenton reaction device is not started, and the manual mode of the electro-Fenton reaction device is not started, namely, the distance between polar plates is not adjusted in the whole treatment process.
At the end of the reaction, the removal rate of COD by the electro-Fenton reaction device was 73.2%.
Compared with the embodiment 1, the removal rate of the COD in the comparative example 1 is far lower than that in the embodiment 1 because the design of the up-down displacement device is applied in the embodiment 1, under the condition that other external conditions such as voltage, current and the number of polar plates are unchanged, the space between two adjacent positive polar plates in the device can be regarded as uniform strong electric field, according to a field intensity formula E=U/d (E is electric field intensity; U is potential difference between two points in the uniform strong electric field, namely voltage; d is distance between the two points along the field intensity direction), the effective change of the field intensity E can be realized by changing the distance d between the polar plates under the condition that the voltage is not changed, and the increase of the field intensity E can also ensure the OH and Fe 2+ The activity degree and the moving speed between the two positive and negative polar plates, thereby improving the removal rate of the COD removal rate.
Comparative example 2
An electro-Fenton reaction device is basically the same as in example 1, except that all insulating plates are connected at their lower ends to the lower bottom of the electrolytic cell and at their upper ends are located in the electrolytic cell.
A method for treating organic wastewater is basically the same as in example 1, except that the electro-Fenton reaction device is the electro-Fenton reaction device of this comparative example.
At the end of the reaction, the removal rate of COD by the electro-Fenton reaction device was 79.9%.
Compared with example 1, the removal rate of COD in comparative example 2 is far lower than that in example 1, because the design of the large serpentine flow channel and the small serpentine flow channel in example 1 makes the wastewater in a three-dimensional flowing state in the reaction device, which has the advantages that: greatly prolonging the reaction time; so that the wastewater can fully react in the reaction device; the space is saved, and the design of the large serpentine flow channel and the small serpentine flow channel enables the waste water to be in a small common electro Fenton reaction device like one, so that the removal rate of COD is improved.
Claims (10)
1. The electro-Fenton reaction device comprises an electrolytic cell, wherein a water inlet (8) and a water outlet (15) are formed in the electrolytic cell, a positive electrode plate and a negative electrode plate are arranged in the electrolytic cell, and the negative electrode plate is a ferroelectric electrode plate (11), and the electro-Fenton reaction device is characterized in that more than 2 insulating plates are arranged in the electrolytic cell, are alternately arranged in the electrolytic cell at intervals, divide the internal space of the electrolytic cell into more than 2 galleries, all galleries are connected in series to form a large serpentine flow channel, one end of the large serpentine flow channel is connected with the water inlet (8), and the other end of the large serpentine flow channel is connected with the water outlet (15); the negative electrode plates and the positive electrode plates are alternately arranged in each gallery at intervals to divide each gallery into small serpentine flow passages.
2. An electro-Fenton reaction device according to claim 1, wherein the electrolytic cell comprises an upper cover and a lower bottom, and the insulating plates are vertical plates and are staggered in the horizontal direction.
3. An electro-Fenton reaction device according to claim 2, wherein one end of the insulating plate is connected to the upper cover or lower base and the other end is located in the electrolytic cell.
4. An electro-Fenton reaction device according to claim 1, wherein the cell comprises a left side wall and a right side wall; the negative electrode plates and the positive electrode plates are horizontal plates and are alternately arranged in the gallery along the vertical direction; the left end of the negative electrode plate is connected with the left side wall of the electrolytic cell or the right side wall of the insulating plate, and the right end of the negative electrode plate is positioned in the electrolytic cell; the right end of the positive electrode plate is connected with the right side wall of the electrolytic cell or the left side wall of the insulating plate, and the left end is positioned in the electrolytic cell; the water inlet (8) is positioned below the electrolytic cell, and the water outlet (15) is positioned above the electrolytic cell.
5. An electro-Fenton reaction device according to claim 4, further comprising a power source, a central control device, the power source comprising a positive electrode and a negative electrode; a COD on-line monitoring probe (13) is arranged in the electrolytic cell, and an electromagnetic control valve (14) is arranged on a water outlet (15); the COD on-line monitoring probe (13) is connected with the central control device, the central control device is connected with the electromagnetic control valve (14), and the central control device is used for receiving information sent by the COD on-line monitoring probe (13) and controlling the electromagnetic control valve (14) to be opened and closed.
6. An electro-Fenton reaction device according to claim 5, wherein the left side wall of the insulating plate is connected to the right end of the positive electrode plate by an up-down moving device, and the up-down moving device is used for driving the positive electrode plate to move up and down.
7. An electro-Fenton reaction device according to claim 6, wherein in each gallery, all positive electrode plates are equally spaced and all negative electrode plates are equally spaced.
8. An electro-Fenton reaction device according to claim 7, wherein a resistive position sensor for detecting the distance between two adjacent positive electrode plates connected to the left side wall of the insulating plate is installed in each gallery; in each gallery, all negative electrode plates are connected with the negative electrodes at the same time, all the resistance type position sensors are connected with the positive electrodes after being connected in series, and all the resistance type position sensors are connected with a signal receiving and conducting device at the same time; the signal receiving and conducting devices in all galleries are simultaneously connected with the central control device;
the up-down moving device is connected with the central control device;
the central control device is also used for receiving the information sent by the signal receiving and conducting device, analyzing the information together with the information sent by the COD on-line monitoring probe (13) and judging the up-and-down movement required for inhibiting the reduction of the COD removal rateThe device moves in the direction and the moving distance, and controls the up-down moving device to move according to the moving direction and the moving distance; according to the COD reduction rate formula
Making a judgment, wherein->
Representing the reactiontThe COD removal rate at the moment of time,
represents the COD value at the beginning of the reaction +.>
Representing the reactiontCOD value at the moment.
9. An electro-Fenton reaction device according to claim 8, characterized in that it further comprises a display (1) and a plate spacing control device (17); the display (1) is connected with the COD on-line monitoring probe (13) and is used for displaying information sent by the COD on-line monitoring probe (13) in real time; the pole plate distance control device (17) is connected with the up-and-down moving device and used for controlling the moving direction and the moving distance of the up-and-down moving device.
10. An electro-Fenton reaction device according to claim 5, characterized in that a pH probe (12) is installed in the electrolytic cell, the pH probe (12) is connected with a central control device, and the central control device is also used for receiving information sent by the pH probe (12) and controlling the electromagnetic control valve (14) to open and close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310232804.3A CN116081780A (en) | 2023-03-13 | 2023-03-13 | electro-Fenton reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310232804.3A CN116081780A (en) | 2023-03-13 | 2023-03-13 | electro-Fenton reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116081780A true CN116081780A (en) | 2023-05-09 |
Family
ID=86202748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310232804.3A Pending CN116081780A (en) | 2023-03-13 | 2023-03-13 | electro-Fenton reaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116081780A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6309532B1 (en) * | 1994-05-20 | 2001-10-30 | Regents Of The University Of California | Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes |
| US6346187B1 (en) * | 1999-01-21 | 2002-02-12 | The Regents Of The University Of California | Alternating-polarity operation for complete regeneration of electrochemical deionization system |
| CN201598200U (en) * | 2009-12-01 | 2010-10-06 | 车晋绥 | Electrolytic bath |
| CN106335974A (en) * | 2016-10-23 | 2017-01-18 | 中海油天津化工研究设计院有限公司 | Hardening-preventing and energy-saving microelectrolysis-Fenton reactor |
| CN107406275A (en) * | 2015-03-13 | 2017-11-28 | 科普图姆有限公司 | By acoustic-electric chemistry come the system and method for the treatment of fluid |
| CN206692387U (en) * | 2017-04-10 | 2017-12-01 | 安徽汇泽通环境技术有限公司 | A kind of multistage gallery type electricity fenton sewage processing unit |
| CN212609706U (en) * | 2020-06-10 | 2021-02-26 | 长江大学 | Sliding type electrocatalysis reaction device capable of adjusting electrode spacing |
| TW202136157A (en) * | 2020-03-06 | 2021-10-01 | 日商索尼股份有限公司 | Unwanted substance removal device and method for removing unwanted substance, and separation device and separation method |
| CN115210189A (en) * | 2020-03-06 | 2022-10-18 | 索尼集团公司 | Unnecessary substance removing apparatus, unnecessary substance removing method, separating apparatus, and separating method |
-
2023
- 2023-03-13 CN CN202310232804.3A patent/CN116081780A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6309532B1 (en) * | 1994-05-20 | 2001-10-30 | Regents Of The University Of California | Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes |
| US6346187B1 (en) * | 1999-01-21 | 2002-02-12 | The Regents Of The University Of California | Alternating-polarity operation for complete regeneration of electrochemical deionization system |
| CN201598200U (en) * | 2009-12-01 | 2010-10-06 | 车晋绥 | Electrolytic bath |
| CN107406275A (en) * | 2015-03-13 | 2017-11-28 | 科普图姆有限公司 | By acoustic-electric chemistry come the system and method for the treatment of fluid |
| US20180072591A1 (en) * | 2015-03-13 | 2018-03-15 | Kp2M Limited | System and method to treat fluids by sonoelectrochemistry |
| CN106335974A (en) * | 2016-10-23 | 2017-01-18 | 中海油天津化工研究设计院有限公司 | Hardening-preventing and energy-saving microelectrolysis-Fenton reactor |
| CN206692387U (en) * | 2017-04-10 | 2017-12-01 | 安徽汇泽通环境技术有限公司 | A kind of multistage gallery type electricity fenton sewage processing unit |
| TW202136157A (en) * | 2020-03-06 | 2021-10-01 | 日商索尼股份有限公司 | Unwanted substance removal device and method for removing unwanted substance, and separation device and separation method |
| CN115210189A (en) * | 2020-03-06 | 2022-10-18 | 索尼集团公司 | Unnecessary substance removing apparatus, unnecessary substance removing method, separating apparatus, and separating method |
| CN212609706U (en) * | 2020-06-10 | 2021-02-26 | 长江大学 | Sliding type electrocatalysis reaction device capable of adjusting electrode spacing |
Non-Patent Citations (1)
| Title |
|---|
| 邢璇: "《电化学水处理应用技术研究》", 中央民族大学出版社, pages: 154 - 159 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100344025C (en) | Membraneless and mediatorless microbial fuel cell | |
| CN103304038B (en) | Electrochemical-biological membrane synergistic reactor and application thereof in nitrogen-containing organic wastewater | |
| CN112573667B (en) | Sewage treatment device and method based on algae-bacteria symbiotic electrochemical system | |
| WO2006010149A2 (en) | A bio-electrochemically assisted microbial reactor that generates hydrogen gas and methods of generating hydrogen gas | |
| de Nicolás et al. | Evaluating bioelectrochemically-assisted constructed wetland (METland®) for treating wastewater: Analysis of materials, performance and electroactive communities | |
| CN112823141A (en) | Scalable continuous flow microbial fuel cell | |
| Zhang et al. | Improving electricity production in tubular microbial fuel cells through optimizing the anolyte flow with spiral spacers | |
| CN107441950A (en) | A kind of electrochemical couple ceramic filtration membrane and its application | |
| CN103518282B (en) | Microbiological fuel cell | |
| CN103408147A (en) | Low-temperature plasma collaborative Fenton biomembrane reaction device and implementation method thereof | |
| US20190225518A1 (en) | Wastewater Treatment with In-Film Microbial Heating | |
| CN103811791A (en) | Bioelectrochemistry device and bioelectrochemistry method for extracting reducing energy from waste and wastewater | |
| Yamane et al. | Estimation of total energy requirement for sewage treatment by a microbial fuel cell with a one-meter air-cathode assuming Michaelis–Menten COD degradation | |
| CN104556561B (en) | Microbiological fuel cell coupling intermittent aerated biofilter composite system | |
| CN206940627U (en) | A kind of electric Fenton water treatment facilities | |
| EP3375032A1 (en) | Method and apparatus for converting chemical energy stored in wastewater | |
| Ma et al. | Electrochemical membrane bioreactors for sustainable wastewater treatment: principles and challenges | |
| CN217077244U (en) | Movable multifunctional three-dimensional electrode reaction device | |
| CN116081780A (en) | electro-Fenton reaction device | |
| Yang et al. | Activated carbon clogging analysis in an integration of constructed wetland with microbial fuel cell | |
| Majumder et al. | Impact of different electrodes, mediators, and microbial cultures on wastewater treatment and power generation in the microbial desalination cell (MDC) | |
| CN111370725B (en) | MFC system based on biological dynamic membrane and enhanced electricity generation method | |
| Gurjar et al. | Exploring necessity to pre-treat organic fraction of waste prior to use in an earthen MFC modified with bentonite | |
| CN207596570U (en) | Three-diemsnional electrode coupling microorganism electrolysis cell processing ammonia nitrogen waste water recycling ammonia device | |
| CN111377535A (en) | Anaerobic forward osmosis membrane bioreactor process for oxidizing ammonia nitrogen by coupling electrochemistry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230509 |
|
| RJ01 | Rejection of invention patent application after publication |