CN203922843U - A kind of microorganism electrolysis cell device that integrates organic sewage processing and produce methane - Google Patents
A kind of microorganism electrolysis cell device that integrates organic sewage processing and produce methane Download PDFInfo
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- CN203922843U CN203922843U CN201420152611.3U CN201420152611U CN203922843U CN 203922843 U CN203922843 U CN 203922843U CN 201420152611 U CN201420152611 U CN 201420152611U CN 203922843 U CN203922843 U CN 203922843U
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- Prior art keywords
- electrolysis cell
- microorganism electrolysis
- microorganism
- sewage
- cell housing
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of microorganism electrolysis cell device that methane was processed and produced to organic sewage that integrates, comprise microorganism electrolysis cell housing 1, in microorganism electrolysis cell housing 1, be provided with anode electrode 8 and cathode electrode 4, cathode electrode 4 is connected with hot end with the cold end of external D.C. regulated power supply 6 with titanium silk 7 by titanium silk 5 respectively with anode electrode 8, the lower end side of microorganism electrolysis cell housing 1 is provided with water inlet pipe 9, water inlet pipe 9 is connected with water distributor 10, microorganism electrolysis cell housing 1 bottom is provided with mud discharging pipe 11 and valve 12, microorganism electrolysis cell housing 1 upper side is provided with water shoot 2, microorganism electrolysis cell housing 1 top is provided with gas-collecting pipe 3.The utility model is by sewage water inlet pipe 9 nutrition source as anode electrogenesis microorganism growth in the organism sewage except oxygen injects microorganism electrolysis cell, and anode electrogenesis microorganism carries out katabolism to the organism in sewage, produces CO in sewage disposal
2, H
+and electronics.Under electricity is auxiliary, the electroactive methanogen of cathode electrode 4 surface attachment is by the CO of anode electrogenesis microbial metabolism organism generation simultaneously
2, H
+and electronics is converted into methane.The sewage disposal of the utility model device collection, CO
2catch and produce methane in one, have simple in structure, laid down cost is low, and the easy feature such as scale amplification.In addition, sewage flow through successively positive column and cathodic area, avoided adding electrochemical activity methanogen substratum at negative electrode, reduced cost.Therefore this device has good application prospect aspect organic sewage recovery energy.
Description
Technical field
The utility model relate to a kind of when processing organic sewage methanogenic device, belong to the crossing domain of bioelectrochemistry, environment and bioenergy, be specifically related to a kind of microorganism electrolysis cell device that methane was processed and produced to organic sewage that integrates.
Background technology
The energy, environment and water resources are the bases that the mankind depend on for existence.Along with fossil oil, particularly the rapid growth of oil and natural gas usage quantity, has triggered global energy dilemma in recent years.In addition a large amount of CO that, fossil oil in use discharges
2can cause Greenhouse effect, and cause climate warming.Meanwhile, the exploitation of fossil oil and use cause various ecological damages and environmental pollution.Along with the trend of Global climate change and low-carbon economy development is inevitable, exploitation clean energy, minimizing carbon emission are just becoming the fresh target of international community various countries, and energy-saving and emission-reduction have also become one of theme of development of world economy and environment protection.Meanwhile, people have produced a large amount of organic sewages in daily life, production process.At present, the sewage disposal technology extensively adopting is mainly that aerobe is processed, and wherein take again activated sludge process as main.Yet Wastewater Treated by Activated Sludge Process sewage energy consumption is high, meanwhile, activated sludge process also produces a large amount of mud, and the processing of mud is also needed to very high expense.Organism in sewage is pollutent, and the while is energy content also, can remove by the mode of recycling.While being approximately sewage disposal as energy potential in sewage 10 times of the electric energy that consumes.Various carbon neutralizations and reproducible energy technology are the important channels of alleviating current global energy and Global warming crisis and minimizing environmental pollution.
Microorganism electrolysis cell (Microbial Electrolysis Cell, MEC) be a kind of new technology that has merged sewage disposal and produced the energy in recent years developing rapidly, can when being carried out a biological disposal upon, sewage obtain the multi-form energy, as the novel process of sewage disposal, caused extensive concern both domestic and external.MEC technology has not only overcome the shortcoming of traditional biological wastewater treatment process, and the energy reclaiming can reduce the cost of sewage disposal.The today being on the rise in problems such as the energy, environment and water resourcess, MEC can realize and reduces pollutant emission and fossil class A fuel A is relied on and reuse of wastewater three general objectives, reach the doulbe-sides' victory of economy and environment, this recycling treatment that is organic sewage provides new approaches.Utilize the microorganism electrolysis cell reducing carbon dioxide production methane of biological-cathode and the research of acetic acid to have been reported (WO2009/155587A2, CN 201210447449.3).The method is used biological-cathode as catalyzer, just can synthesizing methane without hydrogen and organic interpolation.In addition, the microorganism electrolysis cell device of collection CO2 conversion, the pre-one of sewage disposal also has report (CN 201110209150.X).This device utilizes ion-exchange membrane that the anolyte compartment of microorganism electrolysis cell and cathode compartment are separated, the CO that anolyte compartment produces
2by guide pipeline, enter cathode compartment, at cathode compartment, realize CO
2catch and to CH
4transform, thereby realize CO
2the theory that reduces discharging and effectively utilize.But this apparatus structure is complicated, laid down cost is high, and be difficult for scale amplification.
Therefore, be necessary to research and develop simple in structure, laid down cost is low, and the collection CO that easily scale is amplified
2conversion, sewage disposal are in the microorganism electrolysis cell device of one.
Summary of the invention
The purpose of this utility model is to provide a kind of and can is realizing sewage disposal, catch CO
2time, realize CO
2to CH
4the collection sewage disposal, the CO that transform
2transform methane in one simple in structure, laid down cost is low, and the microorganism electrolysis cell device that easily scale is amplified.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of microorganism electrolysis cell device that methane was processed and produced to organic sewage that integrates, it is characterized in that: described device comprises microorganism electrolysis cell housing, in microorganism electrolysis cell housing, be provided with anode electrode and cathode electrode, cathode electrode is connected with hot end with the cold end of external D.C. regulated power supply by titanium silk respectively with anode electrode, the lower end side of microorganism electrolysis cell housing is provided with water inlet pipe, water inlet pipe is connected with water distributor, microorganism electrolysis cell housing bottom is provided with mud discharging pipe and valve, microorganism electrolysis cell housing upper side is provided with water shoot, microorganism electrolysis cell housing top is provided with gas-collecting pipe.
Described microorganism electrolysis cell device of the present utility model also comprise be arranged at water inlet pipe place for control sewage flooding velocity and/or break-make water inlet control valve, be arranged at water shoot place for control drain discharge and/or break-make draining control valve, be arranged at gas-collecting pipe place for detection of the gas controlling device of gaseous constituent and flow, automatic control device for sewage treatment and for the human-machine operation panel of input control order; Gas controlling device and human-machine operation panel are connected to the signal input part of automatic control device for sewage treatment, and water inlet control valve, draining control valve and mud discharging valve are connected to the signal output part of automatic control device for sewage treatment; Described automatic control device for sewage treatment can be existing computer or micro-chip.
Microorganism electrolysis cell device of the present utility model has continuous tupe and sealing treatment pattern;
Tupe is the acquiescence operating mode of described device continuously, under this pattern, the gaseous constituent that automatic control device for sewage treatment obtains according to gas controlling device and flow information, the efficiency of judgement microorganism electrolysis, thereby control water inlet control valve, draining control valve keep suitable flow, the CO that ought detect
2during higher than first threshold, output control signal makes water inlet control valve, draining control valve in high flow capacity state, as the CO detecting with the flow sum of methane gas
2during lower than Second Threshold, output control signal makes water inlet control valve, draining control valve in low flow state with the flow sum (not comprising water vapour) of methane gas.In addition, automatic control device for sewage treatment is opened mud discharging valve according to the first predetermined time interval output control signal.The advantage of this continuous tupe is to realize efficient sewage disposal with acceptable wastewater treatment efficiency.
Sealing treatment pattern is intended to the wastewater treatment efficiency that reaches the highest, the concrete steps of this pattern are: 1, first automatic control device for sewage treatment is exported control signal and water inlet control valve is opened and draining control valve is closed, when the discharge of sewage approaches the volume of electrolyzer, automatic control device for sewage treatment output control signal is closed water inlet control valve, and wherein to make the moment of the control signal that water inlet control valve opens be the starting point that gas flow calculates in output; 2, enter afterwards processing loitering phase, as the CO detecting
2with the flow sum of methane gas during lower than the 3rd threshold value, automatic control device for sewage treatment output control signal make simultaneously water inlet control valve in high flow capacity state, draining control valve in low flow state; 3, after the second predetermined time interval, again export control signal and close water inlet control valve and draining control valve.
Carry out first sealing treatment pattern and enter from step 1, circulation step 2 and 3 is realized optimized wastewater treatment efficiency afterwards.Preferably described the 3rd threshold value is lower than first threshold and Second Threshold.
Described the first predetermined time interval is 1 minute to 1 hour, preferably 1 minute, 2 minutes, 5 minutes, 10 minutes, 15 minutes, 30 minutes.
Described the second predetermined time interval, depending on the speed of the capacity of electrolyzer and water inlet, draining, can be 10 seconds to 1 hour, preferably 10 seconds, 20 seconds, 30 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 15 minutes, 45 minutes.
Microorganism electrolysis cell housing of the present utility model adopts synthetic glass, PVC, glass, Steel Concrete or carbon steel material etc. to make.
Cathode electrode described in the utility model is carbon fiber brush, and anode electrode adopts carbon fiber brush, reticulated vitreous carbon or granular graphite, and at the surface attachment electrochemical activity methanogen of cathode electrode
methanobacterium palustre, anode electrode surface attachment electrochemical activity microorganism.
The current potential of cathode electrode described in the utility model is-0.5V ~-1.5V that the VD of described D.C. regulated power supply is-2.0V ~ 2.0V.
Device described in the utility model is operate continuously, and then anode electrode and cathode electrode that sewage deoxidation gas is flowed through in microorganism electrolysis cell housing successively by water inlet pipe, water distributor flow out through water shoot, and the CO producing
2and CH
4deng gas, through gas-collecting pipe, discharge and collect.
Sewage disposal: by sewage water inlet pipe nutrition source as anode electrogenesis microorganism growth in the organism sewage except oxygen injects microorganism electrolysis cell, anode electrogenesis microorganism carries out katabolism to the organism in sewage, realizes sewage disposal.
CO
2catch and transform: anode electrogenesis microorganism produces CO when the organism in sewage is carried out to katabolism
2, H
+and electronic migration is to negative electrode, at the auxiliary down electroactive methanogen that cathode electrode surface is adhered to of electricity, catches CO
2, catalysis CO
2, H
+and electronics is converted into methane.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, the utility model device comprises employing synthetic glass, PVC, the microorganism electrolysis cell housing 1 that the material such as glass or concrete is made, in microorganism electrolysis cell housing 1, be provided with anode electrode 8 and cathode electrode 4, cathode electrode 4 is connected with hot end with the cold end of external D.C. regulated power supply 6 with titanium silk 7 by titanium silk 5 respectively with anode electrode 8, D.C. regulated power supply is that solar electrical energy generation and accessory power supply combine, using solar electrical energy generation at ordinary times as D.C. regulated power supply, when the electric energy producing when solar electrical energy generation is not enough to maintain microorganism electrolysis cell operation, open accessory power supply.Described cathode electrode 4 is carbon fiber brush, and anode electrode 8 adopts carbon fiber brushes, reticulated vitreous carbon or granular graphite, and in the surface attachment of cathode electrode 4
methanobacterium palustredeng electrochemical activity methanogen, anode electrode 8 surface attachment electrogenesis microorganisms, the lower end side of microorganism electrolysis cell shell 1 is provided with water inlet pipe 9, water inlet pipe 9 is connected with water distributor 10, microorganism electrolysis cell housing 1 bottom is provided with mud discharging pipe 11 and valve 12, microorganism electrolysis cell housing 1 upper side is provided with water shoot 2, and microorganism electrolysis cell housing 1 top is provided with gas-collecting pipe 3.
Organism in the electrogenesis microbial metabolism sewage of anode electrode 8 surface attachment produces CO
2, H
+and electronics; The CO producing
2, H
+and electronic migration is to negative electrode, in auxiliary lower cathode electrode 4 surface attachment of electricity
methanobacterium palustreetc. electroactive methanogen, catch CO
2, catalysis CO
2, H
+and electronics is converted into methane.The utlity model has sewage disposal and CO
2the feature that recycling combines.
Collection sewage disposal, the CO that the utility model proposes
2seizure and product methane are as follows in the start-up course of the bioelectrochemistry system of one:
(1) biological-cathode is made: by electroactive methanogen
methanobacterium palustrefirst with ATCC, specify the special culture media ATCC using
?in the 500 mL tape thickness rubber plug serum bottles of Medium 2487, anaerobism is cultivated [H
2-CO
2(80:20, v/v)].Before being inoculated into microorganism electrolysis cell, get after the above-mentioned medium centrifugal of 250 mL the ATCC to no oxygen, sterilizing by enriched material suspended dispersed again
?in Medium 2487 substratum, then above-mentioned cell suspension inoculation is arrived to the microorganism electrolysis cell of anaerobism, and drum fills CO immediately
2, be fixed as-0.9V of the voltage of D.C. regulated power supply.Under electricity is auxiliary, the electroactive methanogen adhering to by microorganism electrolysis cell cathode surface
methanobacterium palustrekatalysis by CO
2gas reduction is CH
4.Regularly the current data of microorganism electrolysis cell is sampled, after the electric current of microorganism electrolysis cell is maximum and stable, think electroactive methanogen
methanobacterium palustrein cathode electrode surface, fully adhere to the completing of biological-cathode;
(2) biological anode is made: the anaerobic activated sludge of sewage work of take is inoculum, and the first heavy overflowing liquid of sewage work of take is substratum, pure nitrogen gas except after oxygen in 1:9(v/v) ratio microbe inoculation electrolyzer enrichment anode electrogenesis microorganism.Microorganism electrolysis cell is batch operation, adds according to the above ratio the mixed solution of inoculum and substratum after each experiment finishes.Be fixed as-0.9V of the voltage of D.C. regulated power supply, regularly the current data of microorganism electrolysis cell is sampled, after the electric current of microorganism electrolysis cell is maximum and stable, think and fully adhered to electrogenesis microorganism on anode electrode surface, now the biological anode utmost point completes;
(3) after biological-cathode and biological anode complete, pending organic sewage is removed to anode electrode and the cathode electrode that oxygen is flowed through in microorganism electrolysis cell successively by water inlet pipe, water distributor, then through microorganism electrolysis cell water shoot, flow out, be simultaneously fixed as-the 0.9V of voltage of D.C. regulated power supply.Organism in the electrogenesis microbial metabolism sewage of anode electrode surface attachment produces CO
2, H
+and electronics, the CO of generation
2, H
+and electronic migration is to negative electrode, adheres in the auxiliary lower cathode electrode surface of electricity simultaneously
methanobacterium palustreetc. electroactive methanogen, catch CO
2, catalysis CO
2, H
+and electronics is converted into methane, concrete chemical equation is as follows:
Anode electrode
Cathode electrode
And the CO producing
2and CH
4deng gas, through gas-collecting pipe, discharge and collect.The mud producing in device operational process is discharged by microorganism electrolysis cell lower end sludge-discharge pipe, to prevent that microorganism electrolysis cell from stopping up.
The sewage disposal of the utility model device collection, CO
2catch and produce methane in one, have simple in structure, laid down cost is low, and the easy feature such as scale amplification.In addition, sewage flow through successively positive column and cathodic area, avoided adding electrochemical activity methanogen substratum at negative electrode, reduced cost.Therefore this device has good application prospect aspect organic sewage recovery energy.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (4)
1. one kind integrates the microorganism electrolysis cell device that methane was processed and produced to organic sewage, it is characterized in that: comprise microorganism electrolysis cell housing (1), in microorganism electrolysis cell housing (1), be provided with anode electrode (8) and cathode electrode (4), cathode electrode (4) is connected with hot end with the cold end of external D.C. regulated power supply (6) by titanium silk respectively with anode electrode (8), the lower end side of microorganism electrolysis cell housing is provided with water inlet pipe (9), water inlet pipe (9) is connected with water distributor (10), microorganism electrolysis cell housing bottom is provided with mud discharging pipe (11) and valve (12), microorganism electrolysis cell housing upper side is provided with water shoot (2), microorganism electrolysis cell housing top is provided with gas-collecting pipe (3).
2. a kind of microorganism electrolysis cell device that methane was processed and produced to organic sewage that integrates as claimed in claim 1, is characterized in that: D.C. regulated power supply is that solar electrical energy generation and accessory power supply combine.
3. a kind of microorganism electrolysis cell device that methane was processed and produced to organic sewage that integrates as claimed in claim 1, is characterized in that: microorganism electrolysis cell housing (1) adopts Steel Concrete or carbon steel material to make.
4. a kind of microorganism electrolysis cell device that integrates that organic sewage is processed and produce methane as claimed in claim 1, it is characterized in that: described cathode electrode (4) is carbon fiber brush, anode electrode (8) adopts carbon fiber brush, reticulated vitreous carbon or granular graphite, and at the surface attachment electrochemical activity methanogen of cathode electrode (4), anode electrode (8) surface attachment electrogenesis microorganism.
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| CN201420152611.3U CN203922843U (en) | 2014-03-31 | 2014-03-31 | A kind of microorganism electrolysis cell device that integrates organic sewage processing and produce methane |
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| CN201420152611.3U CN203922843U (en) | 2014-03-31 | 2014-03-31 | A kind of microorganism electrolysis cell device that integrates organic sewage processing and produce methane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762635A (en) * | 2015-02-27 | 2015-07-08 | 内蒙古科技大学 | Method and device for co-production of methane by electrically assisted conversion of ethanol into acetic acid |
| CN108328876A (en) * | 2018-04-02 | 2018-07-27 | 江门市赛科环保科技有限公司 | A kind of microorganism sewage water processing system |
| CN110205238A (en) * | 2019-03-18 | 2019-09-06 | 内蒙古科技大学 | A kind of is the apparatus and method of acetic acid by hydrogen and carbon dioxide conversion |
| CN110776227A (en) * | 2019-10-28 | 2020-02-11 | 北京林业大学 | Microbial electrochemical methane upgrading method based on direct electron transfer |
-
2014
- 2014-03-31 CN CN201420152611.3U patent/CN203922843U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762635A (en) * | 2015-02-27 | 2015-07-08 | 内蒙古科技大学 | Method and device for co-production of methane by electrically assisted conversion of ethanol into acetic acid |
| CN108328876A (en) * | 2018-04-02 | 2018-07-27 | 江门市赛科环保科技有限公司 | A kind of microorganism sewage water processing system |
| CN110205238A (en) * | 2019-03-18 | 2019-09-06 | 内蒙古科技大学 | A kind of is the apparatus and method of acetic acid by hydrogen and carbon dioxide conversion |
| CN110205238B (en) * | 2019-03-18 | 2022-12-06 | 内蒙古科技大学 | Device and method for converting hydrogen and carbon dioxide into acetic acid |
| CN110776227A (en) * | 2019-10-28 | 2020-02-11 | 北京林业大学 | Microbial electrochemical methane upgrading method based on direct electron transfer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |