CN102424473A - Method for degrading chlorinated organic pollutant by separated electrocatalysis of microorganism - Google Patents
Method for degrading chlorinated organic pollutant by separated electrocatalysis of microorganism Download PDFInfo
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- CN102424473A CN102424473A CN2011103193267A CN201110319326A CN102424473A CN 102424473 A CN102424473 A CN 102424473A CN 2011103193267 A CN2011103193267 A CN 2011103193267A CN 201110319326 A CN201110319326 A CN 201110319326A CN 102424473 A CN102424473 A CN 102424473A
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Abstract
The invention relates to a method for degrading chlorinated organic pollutants by separated electrocatalysis of microorganisms, and the invention is characterized in that: a cathode plate and an anode plate are respectively disposed in two communicated reactors of 1# and 2#; waste water enters the 1# reactor firstly, and then enters the 2# reactor through a communicating pipe. Only stirring is performed in the 1# reactor, and aeration is not performed; stirring or aeration can be performed in the 2# reactor. The 1# reactor is in an anaerobic state; anaerobic microorganisms transmit hydrogen (provided by an external electric field) to chlorinated organic matter through respiration for dechlorination, and then intermediate products enters the 2# reactor through the communicating pipe for aerobic degradation; the oxygen is provided by aeration or anode oxygen evolution; and waste water is discharged after aerobic treatment. The electrode voltage is 1.5-5 V; the total waterpower retention period is 10-20 h; and the waterpower retention period ratio of the 1# and the 2# reactors is 2-3:1. The invention provides a new method for the high-efficiency degradation of chlorinated organic matter, and plays a guiding role in the treatment of hardly-degradable organic waste water.
Description
Technical field
The present invention relates to the electrocatalysis microbial degradation method of this type of organo-chlorine pollutant hardly degraded organic substance matter, this method mainly adopts electrocatalysis enhancement microbiological reduction dechlorination and oxidative degradation and develops, and belongs to the field of environment protection of treatment of Organic Wastewater.
Background technology
Chlorinatedorganic is one type of very important organic cpds; Be widely used in industries such as the synthetic and medicine of dyestuff, agricultural chemicals, organism; Pollution is wide, toxicity is big, the pollutent of difficult degradation to be one type; Its environmental problem that causes is very noticeable, and effectively administering the organo-chlorine pollutant pollution has become the problem of very paying close attention in the world.The toxicity of chlorinatedorganic mainly is the introducing that is the chlorine element, main at present employing chemical dechlorinating process (like Zero-valent Iron, vitriol etc.) and electrochemical reduction dechlorination, but owing to reasons such as its expensive, inefficiency can't be carried out practical application.Utilize this type of microbial technique degraded organic pollutant to become application potential is arranged most, one of research most active fields; Dechlorination is the committed step of organo-chlorine pollutant microbiological deterioration; Along with increasing of chlorine substituent in the organo-chlorine pollutant; Parent's Electrooxidation degradation is more difficult, and under the enzyme effect, receives the nucleophilic reaction of reductive agent easily, demonstrates anaerobic biodegradation property preferably.Utilize electric field catalysis hydrogen supply (electronics) enhancement microbiological reduction dechlorination to become new research direction, the novel method of therefore developing the intermediate product of dechlorination of electrocatalysis micro-reduction and aerobic mineralising dechlorination has important significance for theories and using value.
Summary of the invention
The present invention relates to a kind of method of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant; Can further improve the electrocatalysis microbe body and tie up to Persistent organic pollutants aspect cooperative reinforcing degradation efficiency, a kind of novel method that mikrobe is efficient, stablize the degradating chloro organic pollutant of under electric field catalysis, utilizing is provided.
The invention is characterized in: the cathode-anode plate of catalysis electrode is separately positioned on 1
#, 2
#In two different reactor drums, 1
#, 2
#Two reactor drums are connected through pipeline section, and waste water at first gets into 1
#Reactor drum then gets into 2 through pipeline section
#Reactor drum is at last by 2
#Reactor drum is discharged.Negative plate is placed on 1
#In the reactor drum, this reactor drum only stirs, aeration not, and positive plate is placed on 2
#In the reactor drum, this reactor drum can carry out aeration agitation.By 1
#, 2
#Water in reactor drum and the connection pipeline section and battery lead plate and external circuit constitute the electrocatalysis loop.Negative plate adopts palladium or the plating palladium pole plate with gentle slow release hydrogen (electronics) function of Chu Qing, and positive plate adopts insoluble petal or MOX pole plate.1
#Reactor drum is in the anaerobic state; Under the situation of external electric field hydrogen supply (electronics); Anaerobion sees through respiration and transmits hydrogen (electronics) to organo-chlorine pollutant, replaces cl ions with hydrogen and carries out the dechlorination degraded, and the intermediate product after the waste water dechlorination gets into 2 through being communicated with pipeline section
#Reactor drum is 2
#Carry out aerobic degradation in the reactor drum, oxygen can be analysed oxygen supply by aeration or anode, but waste water qualified discharge after aerobic treatment.Separated type electrocatalysis microbiological deterioration reactor drum can be given full play to the coupling of mikrobe and electrocatalysis, and mikrobe can keep the best degraded environment separately under anaerobism or aerobic condition.The voltage of electro catalytic electrode is 1.5～5V, and total hrt is at 10～20h, 1
#With 2
#The hydraulic detention time ratio of reactor drum is 2～3: 1.
Description of drawings
Figure: separated type electrocatalysis microorganism reactor schematic flow sheet
1. direct supply 2. waste water storage tanks 3. intake pumps 4.1
#Reactor drum water inlet pipe 5. whisking appliances 6. negative plates 7. positive plates 8. mud 9. settling regions, 10. flow-stopping plates, 11. dividing plates 12.2 that reflux
#13. aeration tube 15. pipe 16.1 of 14 V-notch weir water outlets of reactor drum water inlet pipe
#Reactor drum 17.2
#Reactor drum
Embodiment
Embodiment 1:
Adopt separated type electrocatalysis microorganism reactor to handle containing 2-chlorophenol (2-CP) concentration is the organic waste water of 35～45mg/L, two split 1
#With 2
#The volume of reactor drum is respectively 2m
3And 1m
3, 1
#Reactor drum is established the pole plate device, and power of agitator is 150W, and 2
#Reactor drum is established aerating apparatus, and aeration rate is 20m
3/ h.Negative plate adopts the netted dull and stereotyped pole plate of titanium base plating palladium, and positive plate adopts the netted dull and stereotyped pole plate of titanium base plating ruthenium dioxide, and the voltage of catalysis electrode is 4V.Pipe, diameter was 100mm.Total hrt is 12h.
After debugging stable operation, detect Inlet and outlet water water quality and see Table 1:
Table 1
Can know that from the data of table 1 more than 90%, removal effect is stable to the clearance of 2-chlorophenol for separated type electrocatalysis microorganism reactor of the present invention, for the efficient degradation of organo-chlorine pollutant provides new method and thinking.
Embodiment 2:
It is 40～65mg/L that the sewage at chemical wastewater treatment station contains the chloro nitro phenenyl concentration; The processing wastewater flow rate is 50 tons to be detested; Original place science and engineering skill adopts the flow process of coagulating sedimentation-microbiological anaerobic degraded-microorganism aerobic degraded; The concentration of chloronitrobenzene pollutent is transformed for the method that improves the separated type electrocatalysis microbiological deterioration organo-chlorine pollutant of removing this invention of efficient employing at 10～15mg/L in the water outlet, and the netted titanium base plating of drum type palladium negative plate is installed in anaerobic reactor; The netted titanium base plating of drum type nail positive plate is installed in Aerobic Pond, and the current stabilization volts DS provides the voltage of 4.5V.After the installation of electrocatalysis pole plate; Operation debugging through one month; Begin normally to move, handle wastewater flow, water quality is constant, has carried out water quality detection under the also constant situation of hydraulic detention time; The concentration that detects water outlet chloronitrobenzene pollutent is at 3～5mg/L, and clearance is more than 92%.After the transformation, it is nearly 20% that the more former technology of the treatment effect of waste water has improved, and only increases by 1.5% and handle the row expense, the needs that satisfied environmental protection with transform requirement, and stable.
Draw from embodiment 1 and embodiment 2: adopt the method for a kind of separated type electrocatalysis of the present invention microbiological deterioration organo-chlorine pollutant, stable to the treatment effect of organo-chlorine pollutant, clearance is high.More traditional microbial process has bigger lifting on treatment effect, and can promote transformation to improve processing efficiency to the prior biological treatment process.
The method of a kind of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant that the present invention proposes; Be described through embodiment; Person skilled obviously can be changed or suitably change and combination content as herein described in not breaking away from content of the present invention, spirit and scope, realizes the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as and are included in spirit of the present invention, scope and the content.
Claims (5)
1. the method for a separated type electrocatalysis microbiological deterioration organo-chlorine pollutant is characterized in that: the yin, yang pole plate of electrocatalysis is separately positioned on 1
#, 2
#In two different reactor drums, 1
#, 2
#Two reactor drums are connected through pipeline section, 1
#Only stir in the reactor drum, aeration not is 2
#Can stir aeration in the reactor drum; By 1
#, 2
#Water in reactor drum and the connection pipeline section and battery lead plate and external circuit constitute the electrocatalysis loop; Negative plate adopts palladium or the plating palladium pole plate with gentle slow release hydrogen (electronics) function of Chu Qing, and positive plate adopts insoluble petal or MOX pole plate; The waste water that contains the chloro organic pollutant at first gets into 1
#Reactor drum, 1
#Reactor drum is in the anaerobic state; Under the situation of external electric field hydrogen supply (electronics); Anaerobion sees through respiration and transmits hydrogen (electronics) to organo-chlorine pollutant, replaces cl ions with hydrogen and carries out the dechlorination degraded, and the intermediate product after the waste water dechlorination gets into 2 through being communicated with pipeline section
#Reactor drum is 2
#Carry out aerobic degradation in the reactor drum, oxygen can be analysed oxygen supply by aeration or anode, but waste water qualified discharge after aerobic treatment; The voltage of electro catalytic electrode is 1.5～5V, and total hrt is at 10～20h, 1
#With 2
#The hydraulic detention time ratio of reactor drum is 2～3: 1; Separated type electrocatalysis microbiological deterioration reactor drum can be given full play to the coupling of mikrobe and electrocatalysis, and mikrobe can be at anaerobism or the aerobic the best degraded environment that keeps down separately.
2. like the method for the described a kind of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant of claim 1, it is characterized in that the positive plate of electrocatalysis and negative plate are separately positioned on 1
#, 2
#In two different reactor drums, 1
#, 2
#Two reactor drums are connected through pipeline section; By 1
#, 2
#Water in reactor drum and the connection pipeline section and battery lead plate and external circuit constitute the electrocatalysis loop.
3. like the method for the described a kind of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant of claim 1, it is characterized in that waste water at first gets into 1
#Reactor drum then gets into 2 through being communicated with pipeline section
#Reactor drum is at last by 2
#Reactor drum is discharged, and places 1 of negative plate
#Reactor drum only stirs, and aeration and keep anaerobic state is not placed 2 of positive plate
#Reactor drum carries out aeration agitation, utilizes anode to analyse oxygen or aeration aerating to 1
#The reduzate that reactor drum flows out carries out the microorganism aerobic mineralising and handles and discharge.
4. like the method for the described a kind of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant of claim 1, it is characterized in that the voltage between cathode-anode plate is: 1.5～5V.
5. like the method for the described a kind of separated type electrocatalysis microbiological deterioration organo-chlorine pollutant of claim 1, it is characterized in that total hrt is 10～20h, 1
#With 2
#The hydraulic detention time ratio of reactor drum is 2～3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103193267A CN102424473A (en) | 2011-10-20 | 2011-10-20 | Method for degrading chlorinated organic pollutant by separated electrocatalysis of microorganism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103193267A CN102424473A (en) | 2011-10-20 | 2011-10-20 | Method for degrading chlorinated organic pollutant by separated electrocatalysis of microorganism |
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| CN102424473A true CN102424473A (en) | 2012-04-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976490A (en) * | 2012-12-19 | 2013-03-20 | 天津生态城环保有限公司 | Method for in-situ bioremediation of pollution caused by chlorohydrocarbon of underwater |
| CN104229995A (en) * | 2014-10-09 | 2014-12-24 | 天津工业大学 | Method for degrading degradation-resistant organic wastewater by double sludge tower-type electrical bioreactor |
| CN104773909A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Device and process for treating printing and dyeing wastewater by combining microbial electrolysis cell and anaerobic/aerobiotic technology |
| CN104909514A (en) * | 2015-03-09 | 2015-09-16 | 浙江大学 | Integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010048957A (en) * | 1999-11-30 | 2001-06-15 | 이병헌 | Method for treating unresolvable wastewater |
| CN1435379A (en) * | 2002-01-30 | 2003-08-13 | 中国科学院过程工程研究所 | Device for electro-biologic treatment of organic sewage difficult to degrade |
| CN1935681A (en) * | 2006-10-19 | 2007-03-28 | 上海交通大学 | Anoxybiotic/aerobic two-section internal electrolysis organic waste water treating method |
| CN101468833A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | Electrical biological treatment apparatus for organic sewage |
-
2011
- 2011-10-20 CN CN2011103193267A patent/CN102424473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010048957A (en) * | 1999-11-30 | 2001-06-15 | 이병헌 | Method for treating unresolvable wastewater |
| CN1435379A (en) * | 2002-01-30 | 2003-08-13 | 中国科学院过程工程研究所 | Device for electro-biologic treatment of organic sewage difficult to degrade |
| CN1935681A (en) * | 2006-10-19 | 2007-03-28 | 上海交通大学 | Anoxybiotic/aerobic two-section internal electrolysis organic waste water treating method |
| CN101468833A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | Electrical biological treatment apparatus for organic sewage |
Non-Patent Citations (2)
| Title |
|---|
| SVENJA T LOHNER ET AL: "Application of Electrolysis to Stimulate Microbial Reductive PCE Dechlorination and Oxidative VC Biodegradation", 《ENVIRONMENTAL SCIENCE AND TECHNOLOGY》 * |
| TOM HENNEBEL ET AL: "Dehalogenation of environmental pollutants in microbial electrolysis cells with biogenic palladium nanoparticles", 《BIOTECHNOLOGY LETTERS》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976490A (en) * | 2012-12-19 | 2013-03-20 | 天津生态城环保有限公司 | Method for in-situ bioremediation of pollution caused by chlorohydrocarbon of underwater |
| CN104229995A (en) * | 2014-10-09 | 2014-12-24 | 天津工业大学 | Method for degrading degradation-resistant organic wastewater by double sludge tower-type electrical bioreactor |
| CN104909514A (en) * | 2015-03-09 | 2015-09-16 | 浙江大学 | Integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage |
| CN104773909A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Device and process for treating printing and dyeing wastewater by combining microbial electrolysis cell and anaerobic/aerobiotic technology |
| CN104773909B (en) * | 2015-03-31 | 2016-08-24 | 浙江大学 | Microorganism electrolysis cell is combined device and the technique processing dyeing waste water with aerobic/anaerobic |
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Application publication date: 20120425 |