CN112456714A - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
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- CN112456714A CN112456714A CN202011344064.5A CN202011344064A CN112456714A CN 112456714 A CN112456714 A CN 112456714A CN 202011344064 A CN202011344064 A CN 202011344064A CN 112456714 A CN112456714 A CN 112456714A
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- 239000010865 sewage Substances 0.000 title claims abstract description 66
- 239000002699 waste material Substances 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000000839 emulsion Substances 0.000 claims abstract description 51
- 239000002351 wastewater Substances 0.000 claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000005086 pumping Methods 0.000 claims abstract description 18
- 239000002912 waste gas Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 6
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 6
- 238000007790 scraping Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000007921 spray Substances 0.000 claims description 19
- 238000005188 flotation Methods 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
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- 238000005345 coagulation Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000002910 solid waste Substances 0.000 claims description 3
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- 239000002920 hazardous waste Substances 0.000 claims 7
- 238000010405 reoxidation reaction Methods 0.000 claims 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2209/20—Total organic carbon [TOC]
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Physical Water Treatments (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
一种污水处理系统，包括将污水实现分离出废乳液与废水液的污水预处理单元、将所述废乳液中的水分去除的废乳液干燥单元、用于将废乳液干燥单元工作中产生的废气收集并净化的废气处理单元、将所述废水液净化处理的废水液处理单元、控制单元，所述废乳液干燥单元包括废乳储液槽、具有导热转盘的干燥装置、用于将所述废乳储液槽内的废液抽起的抽水管路、用于将形成在所述导热转盘上的废液渣刮下的刮刀装置，用于驱动所述导热转盘转动的驱动机构、加热装置，所述抽水管路的输出端对着所述导热转盘，能够有效的对污水中的固体杂质和污泥进行分离，处理工段简单，同时污水处理的效率高，方便人们使用，处理后的废液达到排放要求的同时实现资源回收利用。
A sewage treatment system, comprising a sewage pretreatment unit for separating waste emulsion and waste water liquid from sewage, a waste emulsion drying unit for removing moisture in the waste emulsion, and waste gas generated during the operation of the waste emulsion drying unit. A waste gas treatment unit that collects and purifies, a waste water treatment unit that purifies and treats the waste water, and a control unit, the waste emulsion drying unit includes a waste emulsion storage tank, a drying device with a heat-conducting turntable, and is used for the waste emulsion. A pumping pipeline for pumping up the waste liquid in the emulsion storage tank, a scraper device for scraping off the waste liquid slag formed on the heat-conducting turntable, a driving mechanism for driving the heat-conducting turntable to rotate, and a heating device, The output end of the pumping pipeline faces the heat conduction turntable, which can effectively separate the solid impurities and sludge in the sewage, the treatment section is simple, and the sewage treatment efficiency is high, which is convenient for people to use, and the treated waste liquid Resource recycling is achieved while meeting emission requirements.
Description
Technical Field
The invention relates to a sewage treatment system.
Background
The sewage treatment equipment is an industrial equipment which can effectively treat domestic sewage, industrial wastewater and the like in urban areas, prevents sewage and pollutants from directly flowing into water areas, and has important significance for improving ecological environment, promoting urban grade and promoting economic development by removing the pollutants.
When the existing sewage treatment equipment is used, solid impurities and sludge in sewage cannot be effectively separated, certain residual substances and other problems still exist, the conventional physicochemical method and biochemical treatment are mostly adopted in the existing sewage treatment process, the treatment workshop section of the conventional technical route is complicated, the cost is high, meanwhile, the efficiency of sewage treatment is not high, the use of people is inconvenient, the treated waste liquid cannot meet the discharge requirement, and a large amount of gas scum and sludge can be generated in the treatment process.
Disclosure of Invention
The invention aims to provide a sewage treatment system.
In order to solve the technical problems, the invention adopts the technical scheme that: a sewage treatment system comprises a sewage pretreatment unit for separating waste emulsion from waste water liquid from sewage, a waste emulsion drying unit for removing water in the waste emulsion, a waste gas treatment unit for collecting and purifying waste gas generated in the work of the waste emulsion drying unit, a waste water liquid treatment unit for purifying the waste water liquid and a control unit, the waste emulsion drying unit comprises a waste emulsion storage tank, a drying device with a heat-conducting rotary disc, a water pumping pipeline for pumping waste liquid in the waste emulsion storage tank, and a scraper device for scraping waste liquid slag formed on the heat-conducting rotary disc, the inside hollow heating chamber that has of heat conduction carousel, drying device is still including being used for the drive heat conduction carousel pivoted actuating mechanism, right the heating device that the heating chamber heated, the output of water pumping pipeline is facing to the heat conduction carousel.
In some embodiments, the heat-conducting rotating disk is located right above the waste emulsion storage tank, the output end of the water pumping pipeline is connected with a spray head for spraying waste liquid to the heat-conducting rotating disk, the spray head includes a disk surface spray head for spraying waste liquid to the disk surface of the heat-conducting rotating disk and/or an edge spray head for spraying waste liquid to the peripheral surface of the edge of the heat-conducting rotating disk, and the water outlet end of the disk surface spray head is arranged close to the central part of the disk surface of the heat-conducting rotating disk.
In some embodiments, the scraper device comprises a disk surface scraper and/or an edge scraper, wherein the disk surface scraper is correspondingly matched with a corresponding disk surface of the heat-conducting rotary disk, wherein the edge scraper is correspondingly matched with the edge circumferential surface, and the scraper device further comprises a waste liquid residue collecting device which is arranged right below the scraper and is used for collecting the scraped solid waste residues.
In some embodiments, the driving mechanism includes a gear ring fixedly disposed at a central portion of the heat-conducting turntable, a power device, and a transmission device disposed between the gear ring and the power device.
In some embodiments, the heating device comprises a heat source heating device, and a heat source conveying pipe, one end of the heat source conveying pipe is communicated with the heat source heating device, the other end of the heat source conveying pipe penetrates through the gear ring and the heating cavity which is hermetically connected into the heat-conducting rotary disc, and the heat source heating device is communicated with the interior of the heat-conducting rotary disc through the heat source conveying pipe.
In certain embodiments, the sewage pretreatment unit comprises a waste water collection tank for collecting and storing sewage, a PH adjustment tank for adjusting the sewage, a reaction tank for demulsifying the sewage, a coagulation tank for coagulating the sewage, and a primary air flotation tank for separating waste emulsion from waste water liquid in the sewage by a sludge-water collection and separation device.
In some embodiments, the sewage pretreatment unit further comprises an extremely strong oxidation tank for carrying out secondary oxidation on the wastewater liquid output by the primary air flotation tank, and a secondary air flotation tank for carrying out secondary separation of wastewater emulsion and wastewater liquid on the sewage output by the extremely strong oxidation tank through a sludge-water collection and separation device.
In certain embodiments, the wastewater treatment unit comprises a treatment tank disposed after the wastewater pretreatment unit, a membrane filtration device of a UF membrane for removing suspended wastewater and/or a RO reverse osmosis membrane for removing contaminant ions from water.
In some embodiments, the exhaust gas treatment unit includes a trumpet-shaped air suction opening located right above the heat-conducting rotary table, an air suction pipeline connected to the trumpet-shaped air suction opening, and an oil mist separator, a flame arrester, an exhaust gas combustion furnace and a condensing device which are sequentially arranged on the air suction pipeline.
In some embodiments, the sewage treatment system includes a container frame, and supporting legs and/or wheels disposed at the bottom of the container frame, wherein the sewage pretreatment unit, the waste emulsion drying unit, the waste water liquid treatment unit, and the waste gas treatment unit are disposed in the container frame respectively.
The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the sewage treatment system provided by the invention can effectively separate solid impurities and sludge in sewage, the treatment process is simple, the sewage treatment efficiency is high, the sewage treatment system is convenient for people to use, and the resource recycling is realized while the treated waste liquid meets the discharge requirement.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic structural view of a waste emulsion drying unit according to the present invention;
wherein, 1, a sewage pretreatment unit; 11. a waste liquid collecting tank; 12. a pH adjusting tank; 13. a reaction tank; 14. an agglomeration tank; 15. a first-stage air flotation tank; 16. an extremely strong oxidation tank; 17. a secondary air flotation tank; 2. a waste emulsion drying unit; 21. a waste milk reservoir; 22. a heat-conducting turntable; 221. a heating cavity; 23. a water pumping pipeline; 24. a scraper device; 25. a drive mechanism; 26. a heating device; 27. a spray head; 3. a wastewater liquid treatment unit; 31. a treatment water tank; 32. a membrane filtration device; 4. an exhaust gas treatment unit.
Detailed Description
The sewage treatment system provided by the invention can effectively separate solid impurities and sludge in sewage, has a simple treatment process, is high in sewage treatment efficiency and convenient for people to use, and realizes resource recycling while the treated waste liquid meets the discharge requirement.
As shown in fig. 2, the waste emulsion drying unit 2 includes a waste emulsion storage tank 21, a drying device having a heat conductive rotating disk 22, a pumping pipeline 23 for pumping up waste liquid in the waste emulsion storage tank 21, a scraper device 24 for scraping waste liquid slag formed on the heat conductive rotating disk 22, a hollow heating cavity 221 is formed in the heat conductive rotating disk 22, the drying device further includes a driving mechanism 25 for driving the heat conductive rotating disk 22 to rotate, and a heating device 26 for heating the heating cavity 221, and an output end of the pumping pipeline 23 faces the heat conductive rotating disk 22.
As shown in fig. 2, the heat-conducting rotary plate 22 is located right above the waste milk storage tank 21, the output end of the pumping pipeline 23 is connected with a spray head 27 for spraying waste liquid to the heat-conducting rotary plate 22, the spray head 27 comprises a plate surface spray head for spraying waste liquid to the plate surface of the heat-conducting rotary plate 22 and/or an edge spray head for spraying waste liquid to the edge circumferential surface of the heat-conducting rotary plate 22, the water outlet end of the plate surface spray head is arranged close to the central part of the plate surface of the heat-conducting rotary plate 22, and the spray efficiency.
Corresponding to the arrangement of the spray head, the scraper device 24 comprises a disk surface scraper and/or an edge scraper, wherein the disk surface scraper is correspondingly matched with the corresponding disk surface of the heat-conducting rotary disk 22, the edge scraper is correspondingly matched with the edge circumferential surface, the scraper device 24 further comprises a waste liquid slag collecting device which is arranged under the scraper and used for collecting the scraped solid waste slag, and the plurality of scrapers ensure that attachments on the surface of the heat-conducting rotary disk are fully scraped.
The driving mechanism 25 includes a gear ring fixedly disposed at the center of the heat-conducting turntable 22, a power device, and a transmission device disposed between the gear ring and the power device, and the transmission device may be a chain transmission, a gear transmission, a worm gear transmission, or the like.
The heating device 26 comprises a heat source heating device and a heat source conveying pipe, one end of the heat source conveying pipe is communicated with the heat source heating device, the other end of the heat source conveying pipe penetrates through the gear ring and is connected into the heating cavity of the heat conduction rotary disc in a sealing mode, and the heat source heating device is communicated with the heating cavity through the heat source conveying pipe. The heat source heating device usually uses a steam boiler or a heat conducting oil heater, and when the steam boiler is used, a pressure relief device needs to be additionally arranged to prevent the heat conducting rotary table from expanding and exploding due to excessive steam in the heating cavity, eliminate potential safety hazards and prolong the service life of the heat conducting rotary table.
The sewage pretreatment unit 1 comprises a waste liquid collecting tank 11 for collecting and storing sewage, a PH adjusting tank 12 for adjusting the sewage, a reaction tank 13 for demulsifying the sewage, a coagulation tank 14 for coagulating the sewage, and a first-stage air flotation tank 15 for separating waste emulsion and waste water liquid from the sewage through a first mud-water collecting and separating device.
For dirty sewage, the sewage pretreatment unit 1 may further include an extremely strong oxidation tank 16 for re-oxidizing the wastewater outputted from the primary air flotation tank 15, and a secondary air flotation tank 17 for re-separating the wastewater from the wastewater by the second sludge-water collecting and separating device, wherein the wastewater outputted from the extremely strong oxidation tank 16 is subjected to waste emulsion separation. Further treating the sewage.
In this embodiment, the wastewater treatment unit 3 includes a treatment water tank 31 disposed behind the wastewater pretreatment unit 1, and a membrane filtration device 32 for removing a UF membrane suspended in the wastewater and/or an RO reverse osmosis membrane for removing pollutant ions in the water, and treats the wastewater into clean water meeting the discharge requirement.
In this embodiment, exhaust-gas treatment unit 4 is including being located the horn type suction opening directly over the heat conduction carousel, connecting the suction line on horn type suction opening, sets gradually oil mist separator, spark arrester, waste gas on the suction line and fires burning furnace, condensing equipment. And (3) sucking the waste gas generated by drying through a horn-shaped air suction opening, feeding the waste gas into a waste gas combustion furnace for incineration, cooling through a condensing device, and generating clean gas to be discharged to the atmosphere. The grease separated from the oil mist separator is discharged into a waste emulsion liquid storage tank 21 for drying treatment. Water after the waste water liquid processing unit 3 handles is kept in the water tank temporarily, can input the condensing equipment who reaches in the exhaust-gas treatment unit 4 at any time and regard as cooling water secondary, has reduced the water source cost, accords with national environmental protection requirement.
Through rotatory high temperature's carousel, and spray waste water to the carousel on, moisture in the waste water is in the twinkling of an eye of contact heat conduction carousel 22, its most moisture content just evaporates and leaves heat conduction carousel 22, particulate matter in the waste water, composition such as grease are attached to on heat conduction carousel 22, scrape down via the scraper and pile up into likepowder waste residue, be fit for the follow-up processing such as burying, solid, liquid, the gas separation in the waste water are handled simultaneously, the separation is more thorough, the treatment effeciency is higher, the effect is better.
Sewage treatment system includes container formula tank support body, set up in supporting legs and/or the case wheel of container bottom, sewage preliminary treatment unit 1, useless emulsion drying unit 2, waste water liquid processing unit 3 is located the tank support body respectively with exhaust-gas treatment unit 4, the processing apparatus of adoption integral type, can carry whole container type integration danger waste processor, need not dismantle the equipment, treatment effeciency has been strengthened, the device has contained the desiccator simultaneously, can separate into solid-liquid gas three-phase waste with waste water, convenient classification handles the purification, the device can directly be rented to the mill that needs to carry out waste treatment, and the treatment cost is reduced.
A sewage treatment process comprises the following steps:
and 3, pumping the waste emulsion from the waste emulsion storage tank 21 by the water pumping pipeline 23 of the waste emulsion drying unit 2, spraying the waste emulsion onto the heat conduction rotary disc 22 of the drying unit 2, wherein the temperature on the heat conduction rotary disc 22 is 110-.
It is more preferable to add a saponifier to the waste milk reservoir in step 2.
The pretreatment stage consists of a PH adjusting tank, a reaction tank, a condensation tank and an air flotation tank.
The function of the stage is to adjust the pH value of the waste liquid through acid and alkali, and create the optimal reaction condition for demulsification and agglutination. The purpose of demulsification is to make dispersed phase small liquid beads aggregate to form large liquid drops, and finally make the oil phase and the water phase separate out in a layered manner. The physical demulsification method is adopted, and is realized by adding a demulsifying agent.
An electrochemical stage: an extremely strong oxidation tank (electrochemical tank) and an air-floating tank.
Mainly by adding electrodes (semiconductor material) to the waste water liquor. The anode can directly or indirectly generate OH & lt- & gt with strong oxidation activity under the action of an external electric field. Hydroxyl radical is an important active oxygen, and is formed by losing one electron from hydroxyl (OH & lt- & gt) in terms of molecular formula. The hydroxyl free radical has extremely strong electron-gaining capability, namely oxidation capability, and the oxidation potential is 2.8V. Is second only to fluorine in nature. And (3) quickly reacting organic matters and hydroxyl radicals in oil content and oil content remained in the sewage after air floatation separation to produce carbon dioxide and water. The method has no secondary pollution and meets the requirement of environmental protection.
Membrane, RO membrane, produced water discharge or reuse stage:
after the waste water liquid is treated through the electrochemical cell, the pollutant in the waste water liquid is further removed through this function, COD and TOC reduce, get rid of the suspension of aquatic through the UF membrane, produce water SDI <3, accord with the RO condition of intaking, after filtering through reverse osmosis membrane, aquatic ion is held back, and play water quality of water is superior to running water quality of water, and the supernatant can satisfy discharge condition or direct retrieval and utilization. When the system operates, the salt outlet is considered, so that part of concentrated water returns to the electrochemical tank to degrade COD, and meanwhile, part of water enters the concentrated liquid collecting tank and enters the drying system to be finally discharged out of the system.
And (3) a waste liquid drying stage: a concentrated solution collecting tank, a drying unit and residue collection and disposal.
The waste emulsion after demulsification still has a large amount of water, and the water in the scum is treated by drying, so that the waste emulsion is further concentrated, the volume is minimized, the burden of subsequent treatment is reduced, and the heat-conducting turntable is hollow and can be filled with steam. The temperature of the surface of the plate is 130 ℃, the waste emulsion is sprayed on the surface of the plate, water is evaporated rapidly, residual solids are scraped by a metal blade, water vapor is discharged into a cooling device through a fan, the cooler is a heat exchanger, a large amount of heat is discharged out of the system through a cooling tower in a water evaporation mode, steam generated by a dryer is condensed water formed after waste gas treatment and collected in a water tank, and evaporative condensed waste water W2 can meet the discharge condition or be directly recycled.
In the waste gas treatment stage, the temperature of the metal drying disc surface is 130 ℃ in the drying process of the waste emulsion, and at the moment, organic matters in the waste liquid can be carried out by water vapor and enter gas. The oil mist can be collected and trapped by a cooling filter, the principle of the cooling filter is similar to that of a range hood for a household kitchen, and the residual tail gas G1 (the main component is non-methane total hydrocarbon) enters an exhaust gas treatment facility for treatment and is discharged outwards.
Besides the residual tail gas of the cooler, ammonia, hydrogen sulfide, odor and organic waste gas generated by the waste liquid collecting tank, the pH adjusting tank and the oxidation air floatation tank can be collected together and then enter a waste gas treatment facility in the sewage treatment process.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A sewage treatment system is characterized in that: the waste emulsion drying device comprises a sewage pretreatment unit (1) for separating waste emulsion from waste water liquid from sewage, a waste emulsion drying unit (2) for removing moisture in the waste emulsion, a waste gas treatment unit (4) for collecting and purifying waste gas generated in the work of the waste emulsion drying unit (2), a waste water liquid treatment unit (3) for purifying the waste water liquid, and a control unit, wherein the waste emulsion drying unit (2) comprises a waste emulsion storage tank (21), a drying device with a heat conduction rotary disc (22), a water pumping pipeline (23) for pumping up the waste liquid in the waste emulsion storage tank (21), a scraper device (24) for scraping waste liquid and slag formed on the heat conduction rotary disc (22), a hollow heating cavity (221) is formed in the heat conduction rotary disc (22), and the drying device further comprises a driving mechanism (25) for driving the heat conduction rotary disc (22) to rotate, A heating device (26) for heating the heating cavity (221), wherein the output end of the water pumping pipeline (23) faces the heat-conducting rotary disc (22).
2. The integrated hazardous waste treatment machine of claim 1, characterized in that: the heat conduction rotary table (22) is located right above the waste milk storage tank (21), the output end of the water pumping pipeline (23) is connected with a spray head (27) used for spraying waste liquid to the heat conduction rotary table (22), the spray head (27) comprises a table surface spray head used for spraying the waste liquid to the table surface of the heat conduction rotary table (22) and/or an edge spray head used for spraying the waste liquid to the edge circumferential surface of the heat conduction rotary table (22), and the water outlet end of the table surface spray head is close to the center of the table surface of the heat conduction rotary table (22).
3. The integrated hazardous waste treatment machine of claim 2, wherein: scraper device (24) include quotation scraper and/or marginal scraper, wherein the quotation scraper with the corresponding quotation of heat conduction carousel (22) is corresponding to be cooperated, wherein the marginal scraper with the corresponding cooperation of marginal periphery, scraper device (24) still including set up in be used for collecting the waste liquid sediment collection device who scrapes the solid waste under the scraper.
4. The integrated hazardous waste treatment machine of claim 3, wherein: the driving mechanism (25) comprises a gear ring fixedly arranged at the central part of the heat-conducting turntable (22), a power device and a transmission device arranged between the gear ring and the power device.
5. The integrated hazardous waste treatment machine of claim 4, wherein: the heating device (26) comprises a heat source heating device and a heat source conveying pipe, one end of the heat source conveying pipe is communicated with the heat source heating device, the other end of the heat source conveying pipe penetrates through the gear ring and is connected into the heating cavity of the heat conduction rotary disc in a sealing mode, and the heat source heating device is communicated with the interior of the heat conduction rotary disc through the heat source conveying pipe.
6. The integrated hazardous waste treatment machine of claim 1, characterized in that: the sewage pretreatment unit (1) comprises a waste liquid collecting tank (11) for collecting and storing sewage, a PH adjusting tank (12) for adjusting the sewage, a reaction tank (13) for demulsifying the sewage, a coagulation tank (14) for coagulating the sewage, and a first-stage air flotation tank (15) for separating waste emulsion and waste liquid from the sewage through a mud-water collecting and separating device.
7. The integrated hazardous waste treatment machine of claim 6, wherein: the sewage pretreatment unit (1) further comprises an extremely strong oxidation tank (16) for carrying out reoxidation on the wastewater liquid output by the primary air flotation tank (15), and a secondary air flotation tank (17) for carrying out again waste emulsion and wastewater liquid separation on the sewage output by the extremely strong oxidation tank (16) through a mud-water collection and separation device.
8. The integrated hazardous waste treatment machine of claim 1, characterized in that: the wastewater treatment unit (3) comprises a treatment water tank (31) arranged behind the wastewater pretreatment unit (1), and a membrane filtration device (32) of a UF membrane used for removing suspended wastewater and/or an RO reverse osmosis membrane used for removing pollutant ions in water.
9. The wastewater treatment system according to claim 1, wherein: the waste gas treatment unit (4) comprises a horn-shaped air suction opening positioned right above the heat conduction rotary table, an air suction pipeline connected to the horn-shaped air suction opening, and an oil mist separator, a flame arrester, a waste gas combustion furnace and a condensing device which are sequentially arranged on the air suction pipeline.
10. The wastewater treatment system according to any of claims 1-9, wherein: the sewage treatment system comprises a container type container frame body, and supporting legs and/or container wheels arranged at the bottom of the container body, wherein the sewage pretreatment unit (1), the waste emulsion drying unit (2), the waste water liquid treatment unit (3) and the waste gas treatment unit (4) are respectively arranged in the container frame body.
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| CN202011344064.5A CN112456714A (en) | 2020-11-26 | 2020-11-26 | Sewage treatment system |
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| CN202011344064.5A CN112456714A (en) | 2020-11-26 | 2020-11-26 | Sewage treatment system |
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| US5810975A (en) * | 1992-02-12 | 1998-09-22 | Sirven | Apparatus for extracting solid residue from a fluid by evaporation |
| CN101792239A (en) * | 2010-03-31 | 2010-08-04 | 成都蜀光石油化学有限公司 | Method for treatment of waste emulsion |
| CN111783322A (en) * | 2020-08-05 | 2020-10-16 | 江苏固环环境科技有限公司 | High-salt-content organic waste liquid thin layer drying experimental equipment and process optimization method thereof |
| CN214496015U (en) * | 2020-11-26 | 2021-10-26 | 苏州聚隆环保科技有限公司 | Sewage treatment system |
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2020
- 2020-11-26 CN CN202011344064.5A patent/CN112456714A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810975A (en) * | 1992-02-12 | 1998-09-22 | Sirven | Apparatus for extracting solid residue from a fluid by evaporation |
| CN101792239A (en) * | 2010-03-31 | 2010-08-04 | 成都蜀光石油化学有限公司 | Method for treatment of waste emulsion |
| CN111783322A (en) * | 2020-08-05 | 2020-10-16 | 江苏固环环境科技有限公司 | High-salt-content organic waste liquid thin layer drying experimental equipment and process optimization method thereof |
| CN214496015U (en) * | 2020-11-26 | 2021-10-26 | 苏州聚隆环保科技有限公司 | Sewage treatment system |
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