CN108275777A - A kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for coking wastewater processing system - Google Patents

A kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for coking wastewater processing system Download PDF

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Publication number
CN108275777A
CN108275777A CN201810211965.3A CN201810211965A CN108275777A CN 108275777 A CN108275777 A CN 108275777A CN 201810211965 A CN201810211965 A CN 201810211965A CN 108275777 A CN108275777 A CN 108275777A
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cathode
catalysis
fuel cell
film
microbiological fuel
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柳丽芬
张艺臻
孙嘉琪
安路阳
王学凯
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Dalian University of Technology
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Dalian University of Technology
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/005Combined electrochemical biological processes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605Porous electrodes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • H01M4/9016Oxides, hydroxides or oxygenated metallic salts
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/16Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46152Electrodes characterised by the shape or form
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/46115Electrolytic cell with membranes or diaphragms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention belongs to sewage purification and utilization of wastewater resource technical field, discloses a kind of cathode catalysis film coupling membraneless microbiological fuel cell and be used for coking wastewater processing system.More particularly to anode chamber's electricity-producing microorganism anaerobic oxidation, the effect of cathode catalysis film optical electrical catalytic degradation and membrane filtration is cooperateed with to act on degradation of contaminant, interval and continuous operation mode obtain higher degradation rate, reach the purpose of design of sewage disposal and biology electricity production.The invention has the advantages that improving the effluent quality of tradition MFC;Proton exchange membrane is substituted using quartz sand filling middle layer, reduces cost;Coupled system electric microfield promotes oxidation catalyst filter film service life, catalytic oxidation treatment object difficult to degrade;Reaction system takes up little area, flow is short, high treating effect and energy conservation and environmental protection, is conducive to carry out amplification test and industrialization.

Description

A kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for Treatment of Coking Effluent System
Technical field
The invention belongs to sewage disposals and refractory wastewater and application technology as the second resource field, are related to a kind of new coupling Close cathode catalysis film, the microbiological fuel cell reactor without amberplex is shown when handling coking wastewater difficult to degrade Good result.
Background technology
Coking wastewater is a kind of typical hard-degrading high concentrated organic wastewater, is that coal chemical industry is produced in the coke making process stage Raw waste water, source are more concentrated.China is currently the first in the world coke production state and exported country, and the pollution of coking wastewater is asked Topic is particularly acute.Coking wastewater complicated component, organic concentration is high, and coloration is high, and toxicity is big, difficult to degrade, to the place of coking wastewater Reason has become a great problem of water treatment field.It is general to use in order to reach sewage drainage standard of the country to coal chemical industry Pretreatment, biological treatment and advanced treating tertiary treatment method, traditional coking waste water treatment process flow complexity, treatment effect It is poor, therefore, it is necessary to design a kind of energy saving, efficient sewage treatment process, realize coking wastewater high-efficiency removal.
Microbiological fuel cell (Microbial Fuel Cell, abbreviation MFC) technology is a kind of collection rapidly developed this year Biological wastewater treatment and production capacity can not only realize the purified treatment of waste water, moreover it is possible to convert chemical energy in integrated new technology Electric energy.Under the action of anode microorganism, oxidative degradation pollutant generates proton and electronics simultaneously, and proton passes through proton exchange membrane Cathode is reached, the electron reduction O of cathode is transmitted to external circuit2Form H2O or H2O2.However, only handled through single MFC Effluent quality is poor, and it is the bottleneck problem of restriction micro-organisms fuel cell development that the efficiency of processing is low.And membrane separation technique is a kind of Energy-efficient water technology, due to having the characteristics that under room temperature operation, without phase-state change, without chemical change, adaptable Be widely used every field.But general micro-filtration or ultrafiltration cannot retain small molecule contaminants, cannot solve water intoxication hardly possible The removal problem of degradation of contaminant, thus will catalysis, high-level oxidation technology (photocatalysis, electro-catalysis, photoelectrocatalysis, ozone oxidation, Potentiometric titrations oxidation etc.) it is combined with membrane separation technique, membrane filtration and catalysed oxidn can be cooperateed with to remove pollutant, to Improve effluent quality.And overcoming membrane pollution problem existing for membrane separation technique, fouling membrane causes in processing procedure under separating effect The high energy consumption of drop, common film surface cleaning method and aeration method.By combining electric microfield and catalytic action can in this system Achieve effective control membrane pollution problem.Microbiological fuel cell technology is coupled to actual sewage processing with catalytic membrane, on the one hand, It solves the problems, such as that microbiological fuel cell effluent quality is poor, fuel cell is on the other hand utilized to generate electric microfield and Membrane catalysis work With mitigation fouling membrane.The application of microbiological fuel cell technology is limited by the cost of wherein amberplex and electrode, does not use Amberplex will reduce cost.And electrode and filter membrane are coupled in one, electrode film filtering function is assigned, also reduces Additional materials and cost.Further supported catalyst helps while producing electricity filtering, to realize urging for Recalcitrant chemicals Change oxidation, promote treatment effeciency and reduces cost.
A kind of novel cathode catalytic membrane coupling of present invention structure is without amberplex microbiological fuel cell reactor and coke Change waste water treatment system, handles waste water using anode microbiological anaerobic, (light) electro-catalysis of cathode catalysis film and filtering promote water outlet Water quality;Respective advantage is made full use of, realizes continuous high-efficient processing;Proton exchange membrane, drop are substituted using quartz sand filling middle layer Low process operation cost promotes oxidation catalyst filter film service life;And applied to the processing of practical coking wastewater difficult to degrade, reach Efficient process and energy-efficient purpose.
Invention content
The object of the present invention is to provide a kind of coupling of novel cathode catalytic membrane is anti-without amberplex microbiological fuel cell It answers device and coking wastewater processing system, solves microbiological fuel cell effluent quality difference and coking wastewater is difficult, technological process Complicated problem.
Technical scheme of the present invention:
A kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for coking wastewater processing system, including reactor, Aerator and computer data acquisition system;The reactor is dual chamber, and cathode chamber is arranged aeration head and exposes air, and cathode is to urge Change membrane electrode;Medial compartment between two Room for quartz sand filling replaces proton exchange membrane;Load is placed in anode chamber has electricity production micro- The active carbon particle of biology, compactedness 75-85%, carbon-point are that conductive anode is inserted into active carbon particle, and top is closed, has into water Mouthful;Connect external resistance between anode and cathode, resistance value is 1-1200 Ω, and external resistance connects data collecting system, and record generates voltage;Cathode Water pump is connected outside catalysis membrane electrode, by being discharged after cathode catalysis membrane filtration.
The preparation method of the cathode catalysis film, steps are as follows:
The cathode catalysis film is electro-catalysis membrane or photoelectrocatalysis film, and the catalysis material in cathode catalysis film is and anode There are the semi-conducting material of fermi level difference or with the material of electro catalytic activity;It need to select conductive substrates or conductive by adding Material increases the electric conductivity of electrode, realizes electron transmission;Catalysis material is flat in being prepared in substrate with filmogen mixing knifing Plate film, directly by catalysis material growth in situ in substrate, or addition adhesive coated obtains cathode and urges in the first-class mode of substrate Change film.
The cathode catalysis film conductive substrates are stainless (steel) wire, carbon cloth, nickel foam or carbon felt;Add conductive material For carbon nano-fiber, carbon nanotube, graphene or iron powder etc., filmogen is Kynoar, cellulose acetate etc.;
Elctro-catalyst in the cathode electrocatalyst film is MnO2、CoFe2O4Or FeOOH.
Semiconductor catalyst in the cathode luminous catalytic membrane is TiO2、g-C3N4, SiC or WO3, cathode chamber external demand Add ultraviolet or visible light source.
The cathode chamber can add persulfate or peroxydisulfate is a concentration of (10-200mg/L), promote sulfate radical certainly It is generated by base, auxiliary cathode (light) electrocatalysis.
Above-mentioned reactor assembly is used for actual treatment coking wastewater:The system handles practical coking wastewater COD ranging from 200-2500mg/L, the laggard water process of anode microorganism is tamed before starting reactor by diluting coking wastewater, and cathodic coating is logical Peristaltic pump driving filtering is crossed, operational mode is intermittent or continous way, continuous hydraulic residence time 6h-48h.
Beneficial effects of the present invention:The membraneless microbiological fuel cell system handles waste water using anode microbiological anaerobic, It cooperates with cathode catalysis film (light) electrocatalysis and circulating filtration to handle coking wastewater difficult to degrade, makes full use of respective advantage, It solves the problems, such as that traditional MFC organic matters decomposition efficiency is low, promotes the effluent quality of MFC;It is replaced using quartz sand filling middle layer For proton exchange membrane, process operation cost is reduced;Coupled system electric microfield promotes oxidation catalyst filter film service life;The reaction system Take up little area, flow is short, high treating effect and energy conservation and environmental protection, be conducive to carry out amplification and pilot experiment, to promote the industry of achievement Change
Description of the drawings
A kind of membraneless microbiological fuel cells of Fig. 1 couple cathode catalysis membranous system figure.
Fig. 2 low concentrations coking wastewater TiO under the different disposal time2/ pvdf membrane is discharged COD removal rates, abscissa in figure For time (unit:Hour), ordinate is COD removal rates.
Fig. 3 high concentration cokings TiO under the different disposal time2/ pvdf membrane is discharged COD removal rates, abscissa in figure For time (unit:Hour), ordinate is COD removal rates.
Fig. 4 high concentration cokings TiO under the different disposal time2/ pvdf membrane makees cathod system potential energy diagram, horizontal seat in figure It is designated as time (unit:Minute), ordinate is potential.
Specific implementation mode
Below in conjunction with attached drawing and technical solution, the specific implementation mode that further illustrates the present invention.
Embodiment 1
(1) cathode TiO2The preparation of/PVDF catalytic membranes:By TiO2The addition of (15wt%) and carbon nano-fiber (25wt%) exists In PVDF (10wt%) DMF casting solutions, after 6h is stirred, ultrasonic deaeration 30min, using carbon nano-fiber cloth as substrate, coating Thickness is 300 μm, and TiO is obtained after inversion of phases 12h2/ PVDF catalytic membrane cathodes.
(2) membraneless microbiological fuel cell coupling cathode catalysis membranous system processing low concentration coking wastewater operation:Anode chamber It is that conductive anode is inserted into active carbon particle that middle filling load, which has the active carbon particle (compactedness 85%) of electricity-producing microorganism, carbon-point, In, the closed low concentration coking wastewater in top (COD about 200mg/L);Medial compartment between two Room for quartz sand filling replaces proton Exchange membrane;By above-mentioned catalytic membrane loaded on (two-sided) in rectangle membrane module, cathode chamber bottom is exposed into air, provides oxygen for electronics Activating oxygen generates free radicals;By pumping cathode membrane module top-end water-outlet, connected by 1000 Ω external resistances between anode and cathode It connects.Dilution ratio is 100%, 50% to practical coking wastewater successively, 0% domestication anode microorganism.When anode microorganism electricity generation is steady After fixed, low concentration coking wastewater, hydraulic detention time 48h are continuously pumped by peristaltic pump.At interval of 12h respectively by pumping from Water sample is taken out above cathode membrane module, and water outlet COD removal rates are measured using potassium dichromate method.As shown in Fig. 2, low concentration wastewater is straight It connects and couples cathodic coating electrocatalysis by anode microbial action, operation 12h reaches 90% removal rate, and cathode chamber water outlet is final COD removal rates are up to 99%.
Embodiment 2
(1) cathode TiO2The preparation of/PVDF catalytic membranes:Described in case study on implementation 1.
(2) membraneless microbiological fuel cell coupling cathode catalysis membranous system processing high concentration coking operation:Anode chamber It is that conductive anode is inserted into active carbon particle that middle filling load, which has the active carbon particle (compactedness 85%) of electricity-producing microorganism, carbon-point, In, the closed low concentration coking wastewater in top (COD about 2000mg/L);Medial compartment between two Room for quartz sand filling replaces proton Exchange membrane;By above-mentioned catalytic cathode film loaded on (two-sided) in rectangle membrane module, cathode chamber bottom exposes into air, provides oxygen and be used for Electronic activation oxygen generates free radicals;By pumping cathode membrane module top-end water-outlet, pass through 1000 Ω dispatches from foreign news agency between anode and cathode Resistance connection.Dilution ratio is 100%, 50% to practical coking wastewater successively, 0% domestication anode microorganism.When anode microorganism produces After electricity is stablized, low concentration coking wastewater, hydraulic detention time 48h are continuously pumped by peristaltic pump.Pass through pump respectively at interval of 12h It inhales and takes out water above cathode membrane module, water outlet COD removal rates are measured using potassium dichromate method.As shown in figure 3, cathode chamber is discharged COD removal rates are about 75% up to removal rate after 80%, 80h after 48h.System electricity production situation is as shown in figure 4, rise under this condition The preceding 5h cell voltage potentials of beginning cell voltage potential about 0.45v, system operation are steady after reduction with the raising of cathode chamber contaminant degradation rate It is fixed.

Claims (10)

1. a kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for coking wastewater processing system, which is characterized in that institute The cathode catalysis film coupling membraneless microbiological fuel cell and coking wastewater processing system stated include reactor, aerator and meter Calculation machine data collecting system;The reactor is dual chamber, and cathode chamber is arranged aeration head and exposes air, and cathode is catalysis membrane electrode;Two Medial compartment between room for quartz sand filling replaces proton exchange membrane;Load is placed in anode chamber the activated carbon of electricity-producing microorganism Particle, compactedness 75-85%, carbon-point are that conductive anode is inserted into active carbon particle, and top is closed, there is water inlet;Anode and cathode it Between connect external resistance, resistance value is 1-1200 Ω, and external resistance connects data collecting system, and record generates voltage;Cathode catalysis membrane electrode Water pump is connected outside, by being discharged after cathode catalysis membrane filtration.
2. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 1 is used for Treatment of Coking Effluent system System, which is characterized in that the preparation method of the cathode catalysis film, steps are as follows:
The cathode catalysis film is electro-catalysis membrane or photoelectrocatalysis film, and the catalysis material in cathode catalysis film is existed with anode The semi-conducting material of fermi level difference or the material with electro catalytic activity;By selecting conductive substrates or by adding conduction material Material increases the electric conductivity of electrode, realizes electron transmission;By catalysis material and filmogen mixing knifing in preparing tablet in substrate Film, directly by catalysis material growth in situ in substrate, or addition adhesive coated is in substrate, obtaining cathode catalysis film.
3. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 1 or 2 is used for Treatment of Coking Effluent System, which is characterized in that the cathode catalysis film conductive substrates are stainless (steel) wire, carbon cloth, nickel foam or carbon felt.
4. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 1 or 2 is used for Treatment of Coking Effluent System, which is characterized in that the conductive material be carbon nano-fiber, carbon nanotube, graphene or iron powder, it is described at membrane material Material is Kynoar or cellulose acetate.
5. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 3 is used for Treatment of Coking Effluent system System, which is characterized in that the conductive material is carbon nano-fiber, carbon nanotube, graphene or iron powder, the filmogen For Kynoar or cellulose acetate.
6. the cathode catalysis film coupling membraneless microbiological fuel cell according to claim 1,2 or 5 is at coking wastewater Reason system, which is characterized in that the elctro-catalyst in the cathode electrocatalyst film is MnO2、CoFe2O4Or FeOOH;Described the moon Semiconductor catalyst in aurora electro-catalysis membrane is TiO2、g-C3N4, SiC or WO3, ultraviolet or visible light light is added outside cathode chamber Source.
7. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 3 is used for Treatment of Coking Effluent system System, which is characterized in that the elctro-catalyst in the cathode electrocatalyst film is MnO2、CoFe2O4Or FeOOH;The cathode light Semiconductor catalyst in electro-catalysis membrane is TiO2、g-C3N4, SiC or WO3, ultraviolet or visible light source is added outside cathode chamber.
8. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 4 is used for Treatment of Coking Effluent system System, which is characterized in that the elctro-catalyst in the cathode electrocatalyst film is MnO2、CoFe2O4Or FeOOH;The cathode light Semiconductor catalyst in electro-catalysis membrane is TiO2、g-C3N4, SiC or WO3, ultraviolet or visible light source is added outside cathode chamber.
9. the cathode catalysis film coupling membraneless microbiological fuel cell according to claim 1,2,5,7 or 8 is useless for coking Water treatment system, which is characterized in that the persulfate or peroxy-disulfuric acid of a concentration of 10-200mg/L are added in the cathode chamber Salt promotes potentiometric titrations to generate, auxiliary cathode catalytic action.
10. cathode catalysis film coupling membraneless microbiological fuel cell according to claim 9 is used for Treatment of Coking Effluent system System, which is characterized in that the COD of the coking wastewater is 200-2500mg/L, useless by diluting coking before starting reactor Water tames the laggard water process of anode microorganism, and cathodic coating is driven by peristaltic pump and filtered, and operational mode is intermittent or continous way, Continuous hydraulic residence time 6h-48h.
CN201810211965.3A 2018-03-06 2018-03-06 A kind of cathode catalysis film coupling membraneless microbiological fuel cell is used for coking wastewater processing system Pending CN108275777A (en)

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PCT/CN2018/091909 WO2019169785A1 (en) 2018-03-06 2018-06-20 Use of membrane-free microbial fuel cell coupled with cathode catalytic membrane in coking wastewater treatment system
ZA2020/05265A ZA202005265B (en) 2018-03-06 2020-08-24 Membrane-free microbial fuel cell combined catalytic membrane cathode system for coking wastewater treatment

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CN109607675A (en) * 2019-01-14 2019-04-12 长江大学 Visible light-responded high-efficiency composite photocatalyst g-C3N4/ alpha-feooh/Ag preparation method
CN109745865A (en) * 2019-02-20 2019-05-14 山东大学 It is a kind of based on graphite/composite titania material Kynoar electro-catalysis ultrafiltration membrane
CN109745865B (en) * 2019-02-20 2021-11-19 山东大学 Polyvinylidene fluoride electro-catalytic ultrafiltration membrane based on graphite/titanium dioxide composite material
CN110165243A (en) * 2019-05-30 2019-08-23 大连理工大学 A kind of novel piezoelectric material building photocatalysis automatic bias pollution control system
CN110124735B (en) * 2019-06-04 2021-11-12 中钢集团鞍山热能研究院有限公司 Hydrophilic conductive hydrogel cathode catalytic membrane and preparation method and application thereof
CN110124735A (en) * 2019-06-04 2019-08-16 中钢集团鞍山热能研究院有限公司 A kind of hydrophilic electroconductive hydrogel cathode catalysis film and its preparation method and application
CN110304734A (en) * 2019-06-17 2019-10-08 大连理工大学 A kind of cultivation tail water New Method for Processing for strengthening removal of inorganic nitrogen using bacterium algae-catalysis electrode
CN110304734B (en) * 2019-06-17 2021-05-11 大连理工大学 Novel cultivation tail water treatment method for enhancing inorganic nitrogen removal by utilizing bacteria and algae-catalytic electrode
CN110304735B (en) * 2019-06-27 2021-09-24 大连理工大学 Fuel cell system for degrading coking wastewater
CN110304735A (en) * 2019-06-27 2019-10-08 大连理工大学 A kind of fuel cell system for the treatment of of Coking Wastewater
CN110228845A (en) * 2019-07-23 2019-09-13 烟台大学 It is a kind of to hand over every pulling flow type bioelectrochemical system
CN110683615A (en) * 2019-09-11 2020-01-14 青岛理工大学 Ball-membrane coupling catalytic device for degrading benzene series in wastewater, catalyst and preparation and use methods

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