CN103588307B - Treatment method for dyeing wastewater - Google Patents
Treatment method for dyeing wastewater Download PDFInfo
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- CN103588307B CN103588307B CN201310627011.8A CN201310627011A CN103588307B CN 103588307 B CN103588307 B CN 103588307B CN 201310627011 A CN201310627011 A CN 201310627011A CN 103588307 B CN103588307 B CN 103588307B
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a treatment method for dyeing wastewater. The method is characterized by comprising the following steps: configuring a microbial electrochemical coupling system which couples a microbial fuel cell (MFC) and a microbial electrolysis cell (MEC); and adding dyeing wastewater to be treated into the cathode chamber of the MEC for degradation. According to the method, the MFC and the MEC are connected in series, the MFC supplies the MEC with electric energy used for degrading the dyeing wastewater, supply of extra voltage to the MEC for improvement of degradation efficiency of the dyeing wastewater is not needed, so energy is saved; combination of the MFC and the MEC improves efficiency of the individual MFC in degradation of the dyeing wastewater.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste water from dyestuff, relate to a kind of method utilizing microorganism electrochemical system dye wastewater treatment in particular.
Background technology
Waste water from dyestuff has become one of important source of pollution in water globe environment, accounts for 1/10th of trade effluent total flow rate.Due to such waste water have that colourity is high, complex structure, carcinogenic, teratogenesis, the feature such as mutagenesis and bio-refractory, easily accumulation and then form harm to biological and human health in the environment, is therefore the organic waste water of generally acknowledged difficult degradation.Current treatment process mainly contains Physical, chemical method and biological process.Although Physical and chemical method good to dye wastewater treatment effectiveness comparison, also exist that processing costs is higher, secondary pollution problems, therefore treatment process is mainly based on biological process.
Microorganism electrochemical system dye wastewater treatment is utilized to be the one of biological process.Microorganism electrochemical system refers to that utilizing the electron transport system of microorganism to combine with traditional electrochemical system serves the system of certain object, mainly microorganism, reactant, the interactional system of electrode, combine the advantage of biological process, electrolytic ionization and electrochemical oxidation/reduction, be a kind of not only energy-conserving and environment-protective but also efficiently can process the technology of waste water.Microorganism electrochemical system mainly comprises microbiological fuel cell and microorganism electrolysis cell.
Microbiological fuel cell (MFC) utilizes microorganism as catalyst oxidation decomposing organic compounds, generation current simultaneously, be electric energy by the chemical energy in organism, there is wastewater treatment and the recoverable dual-use function of electricity, show the superiority that other technology is incomparable, be widely paid close attention to by International Environmental Protection and energy circle in recent years, the emerging technology of economical and energy saving.But the electric current that MFC produces is little, utilizes MFC process waste water to there is the low problem of processing efficiency.
Microorganism electrolysis cell (MEC) is similar to MFC, utilizes MEC dye wastewater treatment to need to provide external voltage to overcome thermodynamics energy barrier, wastes energy.
Summary of the invention
For solving the weak point existing for above-mentioned prior art, the invention provides a kind of method carrying out dye wastewater treatment in conjunction with microorganism electrolysis cell and microbiological fuel cell, to degradation efficiency, the save energy of waste water from dyestuff can be improved.
Technical solution problem of the present invention, adopts following technical scheme:
The method of dye wastewater treatment of the present invention, its feature is: arrange microorganism electrochemical coupled system, and described microorganism electrochemical coupled system is coupled with microorganism electrolysis cell by microbiological fuel cell;
Then the cathode compartment pending waste water from dyestuff being loaded described microorganism electrolysis cell is degraded.
The method of dye wastewater treatment of the present invention, its feature is also: described coupling with microorganism electrolysis cell by microbiological fuel cell refers to microbiological fuel cell and microorganism electrolysis cell are passed through wired in series.
Described microbiological fuel cell, using two graphite rods as anolyte compartment's electrode and cathode compartment electrode, is filled with granular graphite in anolyte compartment and cathode compartment, and the particle diameter of described granular graphite is 3-5mm;
Described microorganism electrolysis cell, using two graphite rods as anolyte compartment's electrode and cathode compartment electrode, is filled with granular graphite in anolyte compartment and cathode compartment, and the particle diameter of described granular graphite is 3-5mm.
The electronics that MFC anode produces passes to the negative electrode of MEC by graphite rod and external circuit, with the waste water from dyestuff in MEC negative electrode and the alpha proton reaction migrating to MEC negative electrode from MEC anolyte compartment through cationic exchange membrane, thus the waste water from dyestuff that can degrade efficiently in MEC negative electrode; On the other hand, the electronics of the anode generation of MEC passes to the negative electrode of MFC by graphite rod and external circuit, the oxygen provided with pneumatic pump and migrate to the alpha proton reaction of negative electrode from MFC anolyte compartment through cationic exchange membrane, final generation water, form a loop, thus form novel microorganism electrochemical coupled system.
MFC mainly provides the electric energy of dye wastewater degradation to MEC, the electric energy making it produce is utilized by original position, thus without the need to providing external voltage to improve the degradation efficiency of waste water from dyestuff, save energy to MEC; MEC mainly accepts the electric energy that MFC provides, and the electrical energy transfer of anode generation is simultaneously to the negative electrode of MFC, forms the recycle system.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The method of dye wastewater treatment of the present invention, by MFC and MEC to series connection, MFC provides the electric energy of degradation of dye waste water to MEC, without the need to providing external voltage to improve the degradation efficiency of waste water from dyestuff, save energy to MEC; And the combination of MFC and MEC, improve the efficiency being used alone MFC degradation of dye waste water.
Accompanying drawing explanation
Fig. 1 is the structural representation of microorganism electrochemical coupled system of the present invention;
Fig. 2 is the front view of microorganism electrochemical coupled system of the present invention;
Fig. 3 is the rear view of microorganism electrochemical coupled system of the present invention;
Number in the figure: 1 microbiological fuel cell; 1a MFC graphite rod; 1b MFC cationic exchange membrane; 1c MFC water outlet; 1d MFC granular graphite; 1e MFC electrogenesis microorganism; 1f MFC reference electrode; 1g MFC water-in; 2 microorganism electrolysis cells; 2a MEC graphite rod; 2b MEC cationic exchange membrane; 2c MEC water outlet; 2d MEC granular graphite; 2e MEC electrogenesis microorganism; 2f MEC reference electrode; 2g MEC water-in.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the method of the present embodiment dye wastewater treatment is: microbiological fuel cell and microorganism electrolysis cell are formed microorganism electrochemical coupled system by wired in series, anode by MFC is connected with the negative electrode of MEC by wire, the anode of MEC is connected with the negative electrode of MFC by wire again, form loop, form microorganism electrochemical coupled system;
The structure formation of microbiological fuel cell 1 is: using two MFC graphite rod 1a as anolyte compartment's electrode and cathode compartment electrode, be filled with MFC granular graphite 1d in anolyte compartment and cathode compartment, and the particle diameter of MFC granular graphite 1d is 3-5mm; Anolyte compartment there is MFC water-in 1g, MFC water outlet 1c and MFC reference electrode 1f; Long on granular graphite in anolyte compartment and graphite rod have MFC electrogenesis microorganism 1e; Cathode compartment there is a MFC water-in 1g and MFC water outlet 1c; Accompany MFC cationic exchange membrane 1b between cathode compartment and anolyte compartment, form microbiological fuel cell.
The structure formation of microorganism electrolysis cell 2 is: using two MEC graphite rod 2a as anolyte compartment's electrode and cathode compartment electrode, be filled with MEC granular graphite 2d in anolyte compartment and cathode compartment, and the particle diameter of MEC granular graphite is 3-5mm; Anolyte compartment there is MEC water-in 2g, MEC water outlet 2c and MEC reference electrode 2f; Long on granular graphite in anolyte compartment and graphite rod have MEC electrogenesis microorganism 2e; Cathode compartment there is a MEC water-in 2g and MEC water outlet 2c; Accompany MEC cationic exchange membrane 2b between cathode compartment and anolyte compartment, form microorganism electrolysis cell.
At the anode indoor inoculation anaerobic sludge of MFC and MEC, add in the cathode compartment of MFC containing electrolytical solution, use aerator to aeration in solution and while pass through the circulation of external peristaltic pump, make in solution, to maintain certain dissolved oxygen, waste water from dyestuff is added, also by the circulation of external peristaltic pump in the cathode compartment of MEC.
In MFC, when culture medium solution containing sodium-acetate is entered into anolyte compartment by MFC water-in 1g, MFC electrogenesis microorganism 1e catalysis sodium-acetate oxygenolysis on MFC granular graphite 1d, electronics is exported on MFC graphite rod 1a simultaneously, then the MEC graphite rod 2a in the cathode compartment in external circuit arrival MEC is flowed through, with waste water from dyestuff wherein and the alpha proton reaction migrating to negative electrode from MEC anolyte compartment through MEC cationic exchange membrane 2b, thus degradation of dye waste water.MEC electrogenesis microorganism 2e same catalysis sodium-acetate oxygenolysis in anolyte compartment in MEC, electronics is exported on MEC graphite rod 2a, then flow through on the MFC graphite rod 1a in the cathode compartment in external circuit arrival MFC, the oxygen provided with pneumatic pump and migrate to the alpha proton reaction of negative electrode from MFC anolyte compartment through MFC cationic exchange membrane 1b, final generation water, the water outlet of the room, positive and negative pole of MFC and MEC is flowed out respectively by MFC water outlet 1c, MEC water outlet 2c.
Using acid orange 7 as waste water from dyestuff, known by processing:
Example one: do not having in the microorganism electrochemical system be coupled, when the concentration of waste water from dyestuff (acid orange 7) of negative electrode water inlet be 0.7mM, PH is 7, after being degraded by single MFC, only have 35.0% ± 2.0% by the removal efficiency calculating acid orange 7 (AO7).
Example two: in the novel microorganism electrochemical couple system of the present embodiment, when the concentration of the waste water from dyestuff AO7 of negative electrode water inlet in MEC is consistent with concentration in example one, same PH is 7, after being degraded by the coupled system of the present embodiment, be 79.0% ± 1.0% by calculating the removal efficiency of AO7.
Using tropeolin-D as waste water from dyestuff, known by processing:
Example one: do not having in the microorganism electrochemical system be coupled, when the concentration of waste water from dyestuff (tropeolin-D) of negative electrode water inlet be 0.9mM, PH is 7, after being degraded, only has 50.0% ± 0.5% by the removal efficiency calculating tropeolin-D (MO) by single MFC.
Example two: in novel microorganism electrochemical couple system of the present invention, when the waste water from dyestuff MO of negative electrode water inlet in MEC concentration and concentration in example one unanimously, same PH controls 7 time, after being degraded by the coupled system of the present embodiment, be 89.8% ± 1.0% by calculating the removal efficiency of MO.
Claims (2)
1. a method for dye wastewater treatment, is characterized in that: arrange microorganism electrochemical coupled system, and described microorganism electrochemical coupled system is coupled with microorganism electrolysis cell by microbiological fuel cell;
Anaerobic sludge is inoculated and the substratum added containing sodium-acetate in the anolyte compartment of the anolyte compartment of microbiological fuel cell and microorganism electrolysis cell, add in the cathode compartment of microbiological fuel cell containing electrolytical solution, the cathode compartment then pending waste water from dyestuff being loaded described microorganism electrolysis cell is degraded;
Described coupling with microorganism electrolysis cell by microbiological fuel cell refers to microbiological fuel cell and microorganism electrolysis cell is passed through wired in series.
2. the method for dye wastewater treatment according to claim 1, is characterized in that:
Described microbiological fuel cell, using two graphite rods as anolyte compartment's electrode and cathode compartment electrode, is filled with granular graphite in anolyte compartment and cathode compartment, and the particle diameter of described granular graphite is 3-5mm;
Described microorganism electrolysis cell, using two graphite rods as anolyte compartment's electrode and cathode compartment electrode, is filled with granular graphite in anolyte compartment and cathode compartment, and the particle diameter of described granular graphite is 3-5mm.
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| CN201310627011.8A CN103588307B (en) | 2013-11-29 | 2013-11-29 | Treatment method for dyeing wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104141147B (en) * | 2014-08-01 | 2016-08-24 | 太原理工大学 | Microbiological fuel cell self-driven microorganism electrolysis cell hydrogen-preparing hydrogen-storing method |
| CN104828938B (en) * | 2015-04-28 | 2017-03-08 | 华南理工大学 | The device of hydrogen phosphide is produced in a kind of phosphor-containing organic wastewater multistage dephosphorization |
| CN105060619B (en) * | 2015-07-22 | 2018-04-20 | 清华大学 | A kind of device for handling organic wastewater with difficult degradation thereby and application thereof |
| CN107381811B (en) * | 2017-09-11 | 2020-09-29 | 上海理工大学 | Microbial dual-source electrochemical sewage reactor and method for treating low C/N urban sewage |
| CN107601788A (en) * | 2017-11-06 | 2018-01-19 | 华北理工大学 | A kind of urban sewage treating device and sewage water treatment method |
| CN108493471A (en) * | 2018-02-01 | 2018-09-04 | 山东联星能源集团有限公司 | Microbiological fuel cell and preparation method thereof |
| CN108640417A (en) * | 2018-05-03 | 2018-10-12 | 安徽科技学院 | A kind of new method of electrochemistry and microbiological fuel cell combined treatment waste water from dyestuff |
| CN108585357A (en) * | 2018-05-04 | 2018-09-28 | 安徽科技学院 | A kind of new method of dye wastewater treatment |
| CN108946941B (en) * | 2018-06-22 | 2021-04-23 | 南京大学 | Microorganism-electrochemistry sewage treatment system of low energy consumption |
| CN109052620A (en) * | 2018-07-12 | 2018-12-21 | 江苏理工学院 | A kind of method of cadmium ion in removal heavy metal wastewater thereby |
| CN109319942A (en) * | 2018-09-20 | 2019-02-12 | 江苏理工学院 | A kind of application of the construction method and processing Copper in Electroplating Waste Water, nickel of bioelectrochemistry processing system |
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| CN102329006A (en) * | 2011-07-28 | 2012-01-25 | 西安交通大学 | Microbial photoelectrochemical system for simultaneously generating electricity and hydrogen and treating sewage |
| CN102351310A (en) * | 2011-07-26 | 2012-02-15 | 西安交通大学 | Microbial electrochemical CO2 capture system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102351310A (en) * | 2011-07-26 | 2012-02-15 | 西安交通大学 | Microbial electrochemical CO2 capture system |
| CN102329006A (en) * | 2011-07-28 | 2012-01-25 | 西安交通大学 | Microbial photoelectrochemical system for simultaneously generating electricity and hydrogen and treating sewage |
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