CN204039127U - A kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery - Google Patents
A kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery Download PDFInfo
- Publication number
- CN204039127U CN204039127U CN201420377073.8U CN201420377073U CN204039127U CN 204039127 U CN204039127 U CN 204039127U CN 201420377073 U CN201420377073 U CN 201420377073U CN 204039127 U CN204039127 U CN 204039127U
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- China
- Prior art keywords
- wastewater treatment
- microorganism
- negative electrode
- cathode compartment
- compartment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery.System comprises additional power source, and the negative electrode be connected with power supply and anode are respectively in the electrode vessel of two, left and right, and two electrode vessel cationic exchange membranes are separated by, and bottom is furnished with magnetic stirring apparatus and stirs, and negative electrode is separately provided with methane collection mouth.This experiment all adds waste water and mud at negative and positive the two poles of the earth, and wherein the microorganism of anolyte compartment obtains energy by the organism in Decomposition Wastewater, the electronics produced and hydrogen ion is passed to cathode compartment in reaction process simultaneously; The microorganism of cathode compartment produces methane by decomposing organic matter, simultaneously owing to there being the flowing of electric current to make the degradation efficiency of waste water and the productive rate of methane all be greatly improved.
Description
Technical field
The utility model belongs to the crossing domain of microorganism electrolysis cell and production by biological methane process, is specifically related to a kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery.
Background technology
From 19th century, fossil oil (coal, oil, Sweet natural gas) is the main energy sources of the mankind always, facilitates economic prosperity and social development.But since entering the middle and later periods in 20th century, the drawback depending on fossil oil unduly starts to show more and more significantly.Use fossil energy to create great amount of carbon dioxide, hydrogen sulfide and oxynitride on the one hand, cause serious Greenhouse effect and the environmental disaster such as acid rain, photo-chemical smog; On the other hand because fossil energy reserves are limited, be on the brink of exhaustion at present.According to China Statistical Yearbook in 2013, energy ultimate production and the total flow of China grew with each passing day, wherein especially based on fossil oil (coal, oil, Sweet natural gas).Its three accounts for more than 90% of energy total amount.Meanwhile according to the Environmental statistics annual report that People's Republic of China's Environmental Protection Department is announced every year, be no matter that the concentration of the chemical oxygen demand (COD) in trade effluent or sanitary wastewater remains at more than 150mg/L, considerably beyond the water quality standard of national regulation.
For the energy and environment problem existed at present, invent a kind of technology that simultaneously can solve these two kinds of problems and seem particularly important.Microorganism electrolysis cell (MEC) system has the advantage of oneself uniqueness as a kind of emerging electro-chemical systems in energy recovery.But the negative electrode that traditional MEC uses is all price metal electrode costly, makes cost be greatly improved.Simultaneously present MEC is used for carrying out the generation of hydrogen mostly, and hydrogen manufacturing cost is higher, is not easy to collect and transport, and these all constrain the application of MEC in reality.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery.
Integrate power supply jointed anode and the negative electrode of the microorganism electrolytic system of biological wastewater treatment and promotion methane recovery, anode and negative electrode are among the anolyte compartment and cathode compartment that are made up of housing respectively, separated by cationic exchange membrane before anolyte compartment and cathode compartment, be equipped with magnetic stirring apparatus bottom anolyte compartment and cathode compartment to stir, the gas that negative electrode produces is collected by collection and confinement of gases mouth.
Described voltage of supply controls at 0.8V.
Described housing material used is all synthetic glass.
Described anode and negative electrode material therefor are carbon felt, and the two is connected with power supply by titanium silk, and anolyte compartment and cathode compartment are all equipped with waste water and mud.
The utility model focuses on cathode compartment and anolyte compartment adds sewage and mud simultaneously, can carry out degradation of sewage and produce on the basis of methane, carried out further strengthening to this process at cathode compartment itself.
Compared with prior art, the beneficial effects of the utility model synchronously achieve the biological treatment of waste water and the reinforcement of methane phase function.
Add waste water at negative and positive the two poles of the earth simultaneously, the process of waste water can be carried out by the Degradation of microorganism, simultaneously due to the existence of impressed voltage, improve the effect of wastewater degradation.
In the methane phase process of negative electrode, the supply due to external circuit electronics can improve the productive rate of methane greatly.
MEC can be made to apply on a large scale in the middle of wastewater treatment by this technology and not worry Cost Problems, also can alleviate the pressure of later process process as the pre-treatment step of municipal wastewater or trade effluent simultaneously.
Accompanying drawing explanation
Fig. 1 is system schematic.
Power supply 1, anode carbon felt 2, cathode carbon felt 3, cationic exchange membrane 4, housing 5, anolyte compartment 6, cathode compartment 7, magnetic stirring apparatus 8, collection and confinement of gases mouth 9.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
See Fig. 1, the housing 5 that reactor body is made up of synthetic glass forms, be divided into anolyte compartment 6 and cathode compartment 7, be separated by by cationic exchange membrane 4 between room, the two poles of the earth, the anode carbon felt 2 and the cathode carbon felt 3 that are connected by power supply 1 are among anolyte compartment 6 and cathode compartment 7 respectively, two electrode vessels are built with waste water and mud, and carry out stirring and evenly mixing by magnetic stirring apparatus 8, the gas that negative electrode produces is collected by collection and confinement of gases mouth 9.
Described power supply 1 voltage control is at 0.8V.
Described housing 5 material used is all synthetic glass.
Described anode 2 is carbon felt with negative electrode 3 material therefor, and the two is connected with power supply 1 by titanium silk, and anolyte compartment 6 and cathode compartment 7 are all equipped with waste water and mud.
The biological wastewater treatment that integrates of described system comprises the steps: with the method for promotion methane recovery
1) stage is tamed
Anolyte compartment 6 and the cationic exchange membrane 4 folded by cathode compartment 7 centre use 15%H
2o
2carry out pre-treatment, seed sludge in anolyte compartment 6 and cathode compartment 7 all adopts municipal sewage plant's second pond mud to tame, cathode compartment and anolyte compartment add sewage and mud simultaneously, anolyte compartment compares for 3:1 with the waste water of cathode compartment with sludge volume, domestication stage power supply 1 provides voltage to be 0.8V, and anolyte compartment 6 and cathode compartment 7 from water distribution formula are: Na
2hPO
412H
2o 11.47g/L, NaH
2pO
42H
2o 2.75g/L, NH
4cl 0.31g/L, KCl 0.13g/L, anolyte compartment 6 passes through CH
3cOOH control COD concentration is 2000mg/L, and cathode compartment 7 is 3000mg/L by sucrose control COD concentration;
2) operation phase
Change cationic exchange membrane 4, use 15%H
2o
2pre-treatment is carried out to cationic exchange membrane 4, the voltage that power supply 1 provides remains unchanged, anolyte compartment 6 is identical with domestication process from water distribution formula with in cathode compartment 7, magnetic stirring apparatus 8 rotating speed controlled below anolyte compartment 6 and cathode compartment 7 is 100r/min, a batch of working time is set to 3 days, and gas is derived by rubber tubing by collection and confinement of gases mouth 9 place above cathode compartment 7.
The waste water of anolyte compartment and cathode compartment and mud ratio are 3:1, and often take turns experiment and terminate rear by remaining waste water everywhere, mud continues to retain.
Anolyte compartment's principle is the organism in microbiological deterioration waste water, and the electronics produced by electrogenesis bacterium flows to negative electrode by external circuit, and the hydrogen ion simultaneously produced flows to negative electrode by cationic exchange membrane, remains the balance of electric charge.
The principle of cathode compartment is that after microorganism have received the electronics and hydrogen ion transmitted by anolyte compartment, activity is enhanced, hydrolysis bacterium, acid-producing bacteria, methane phase is carried out under the effect of the anerobes such as methanogen, be greatly improved because the flowing of electronics makes the productive rate of methane relative to when not having energising, the degradation rate also having negative and positive the two poles of the earth waste water simultaneously improved.
Feature of the present utility model is on the basis of common anaerobic reaction, greatly improve the degradation rate of waste water and the productive rate of methane, make in wastewater treatment process, use MEC to become possibility, simultaneously because the MEC structure of this invention is simple, can transform common anaerobic reactor very easily, for large-scale industrial application provides possibility.
Claims (4)
1. one kind integrates biological wastewater treatment and the microorganism electrolytic system promoting methane recovery, it is characterized in that: power supply (1) jointed anode (2) and negative electrode (3), anode (2) and negative electrode (3) are among the anolyte compartment (6) and cathode compartment (7) that are made up of housing (5) respectively, separated by cationic exchange membrane (4) before anolyte compartment (6) and cathode compartment (7), anolyte compartment (6) and cathode compartment (7) bottom are equipped with magnetic stirring apparatus (8) and stir, the gas that negative electrode produces is collected by collection and confinement of gases mouth (9).
2. the microorganism electrolytic system integrating biological wastewater treatment and promotion methane recovery according to claims 1, is characterized in that: described power supply (1) voltage control is at 0.8V.
3. integrating biological wastewater treatment and promoting the microorganism electrolytic system of methane recovery according to claims 1, it is characterized in that: described housing (5) material used is all synthetic glass.
4. the microorganism electrolytic system integrating biological wastewater treatment and promotion methane recovery according to claims 1, it is characterized in that: described anode (2) and negative electrode (3) material therefor are carbon felt, the two is connected with power supply (1) by titanium silk, and anolyte compartment (6) and cathode compartment (7) are all equipped with waste water and mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377073.8U CN204039127U (en) | 2014-07-09 | 2014-07-09 | A kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377073.8U CN204039127U (en) | 2014-07-09 | 2014-07-09 | A kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204039127U true CN204039127U (en) | 2014-12-24 |
Family
ID=52239818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420377073.8U Withdrawn - After Issue CN204039127U (en) | 2014-07-09 | 2014-07-09 | A kind of microorganism electrolytic system integrating biological wastewater treatment and promote methane recovery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176823A (en) * | 2014-07-09 | 2014-12-03 | 浙江大学 | Microbial electrolytic system and method integrating biological treatment of wastewater and promotion of methane recovery |
| CN106835186A (en) * | 2017-03-02 | 2017-06-13 | 高节义 | It is electrolysed the method and device that methane is produced in three Room |
-
2014
- 2014-07-09 CN CN201420377073.8U patent/CN204039127U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176823A (en) * | 2014-07-09 | 2014-12-03 | 浙江大学 | Microbial electrolytic system and method integrating biological treatment of wastewater and promotion of methane recovery |
| CN104176823B (en) * | 2014-07-09 | 2016-08-24 | 浙江大学 | Microorganism electrolysis system and the method integrating biological wastewater treatment and promote methane recovery |
| CN106835186A (en) * | 2017-03-02 | 2017-06-13 | 高节义 | It is electrolysed the method and device that methane is produced in three Room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |