CN109110911A - A kind of drawer type biofilter coupling microbiological fuel cell composite system - Google Patents

A kind of drawer type biofilter coupling microbiological fuel cell composite system Download PDF

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Publication number
CN109110911A
CN109110911A CN201811275764.6A CN201811275764A CN109110911A CN 109110911 A CN109110911 A CN 109110911A CN 201811275764 A CN201811275764 A CN 201811275764A CN 109110911 A CN109110911 A CN 109110911A
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China
Prior art keywords
water
fuel cell
microbiological fuel
tank
microbial
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Pending
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CN201811275764.6A
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Chinese (zh)
Inventor
刘洪波
管祥雄
陈子华
薛璐璐
符策竿
关永年
陈瑜
方月英
刘玉红
汤庆会
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Suzhou Industrial Park Hua Yan Water Co., Ltd.
University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Priority to CN201811275764.6A priority Critical patent/CN109110911A/en
Publication of CN109110911A publication Critical patent/CN109110911A/en
Pending legal-status Critical Current

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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
    • 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections

Abstract

The invention discloses a kind of drawer type biofilters to couple microbiological fuel cell composite system, comprising: the first peristaltic pump is connect with water tank by water inlet pipe;First flowmeter is connect with peristaltic pump, for recording the flow velocity of waste water;Sink is connected to first flowmeter by water inlet pipe;Microbiological fuel cell module, including be disposed adjacent with sink Microbial fuel reaction tank, be set in Microbial fuel reaction tank and the energy storage device by copper wire multiple groups anode plate and cathode plate interconnected and being connect between multiple groups anode plate and cathode plate by conducting wire;Microorganism filter tank module, including be arranged successively the three microbial reaction pond adjacent with Microbial fuel reaction tank, the multiple drawers being overlapped mutually and the filler being placed in multiple drawers that are set in each microbial reaction pond;Standby pool is disposed adjacent with third microbial reaction pond, and spare bottom of pond portion is equipped with water purification water outlet;And water tank, it is connected to water purification water outlet by pure water pipe.

Description

A kind of drawer type biofilter coupling microbiological fuel cell composite system
Technical field
The invention belongs to field of environmental engineering sewage treatment, and in particular to a kind of drawer type biofilter coupling microorganism combustion Expect battery composite system.
Background technique
In China, the annual energy consumption for sewage treatment facility has reached the 1% of national total electricity consumption.According to relevant Investigation, the average energy consumption of wastewater treatment in China factory are 0.29Kwh/m3, it is equivalent to developed country at the end of the 20th century or earlier period Energy consumption level.Compared with developed countries, municipal sewage plant of China technique falls behind, and the outmoded old factory of equipment is in the majority, energy consumption mistake Greatly, power saving is very prominent.Other than energy consumption problem, with to effluent quality more stringent requirement and public's environmental protection The gradually enhancing of consciousness forces Chinese government's formulation sewage treatment and discharge standard, the water quality indicator being related to more and more tighter.Country Requirement of " the urban wastewater treatment firm pollutant emission standard " implemented to wherein several indexs (COD, SS, TN) is stringenter. This causes existing sewage treatment plant that must be faced with the transformation for the treatment of process and the improvement problem of effluent quality.Therefore, compel to be essential It to be developed by comprehensive exploration, research promotion New Technology about Wastewater Treatment, new process are discharged to solve urban wastewater treatment firm The below standard emission problem of COD, SS, TN index, the research for carrying out the sewage treatment based on ideas of energy-saving are extremely urgent.
Microbiological fuel cell (Microbial fuel cell, abbreviation MFC) is a kind of catalysis by microorganism and generation Journey of apologizing for having done sth. wrong converts the chemical energy in organic matter in the device of electric energy, it has efficient degradation organic pollutant, generates cleaning energy The plurality of advantages such as source electric energy, sludge yield be low.But limit its large-scale practical application there are some problems: a. is in order to improve The power output of system, cathode mostly use expensive platinum carbon cathode, operating cost are caused to increase;B. microbiological fuel cell is all Electric energy is recycled by the connection with resistance, therefore the energy generated is dissipated basically by the form of thermal energy, and not yet in effect Ground recycles;C. microbiological fuel cell is a kind of processing technique based on anaerobic processes and aerobic process, in effluent quality It is upper to remain gap better than anaerobic technique but with the treatment effeciency of aerobic process.Therefore, microbiological fuel cell is utilized Advantage, develop new group technology to solve the problems, such as that stringenter Effluent criteria is extremely urgent.
Town sewage causes biological treatment carbon source insufficient, effluent quality is not able to satisfy stringenter due to low ratio of carbon to ammonium Standard, traditional wastewater denitrification treatment process face great challenge.Traditional biological denitrificaion is by addition methanol, glucose etc. Liquid carbon source carries out denitrifying research and probe, but adds these carbon sources to easily cause carbon source to add insufficient or excessive, not only increases Denitrification cost, system operation is complicated and secondary pollution problem is than more prominent.In recent years, researchers actively find nontoxic, honest and clean The solid-state carbon source of valence replaces traditional carbon source.Therefore, cheap and sustainable release carbon source solid carbon source replaces tradition The research of carbon source has become new hot spot.It is this it is sustainable release carbon source solid carbon source device run during, Releasing carbon amounts can be gradually less, eventually results in filler failure;The aobvious acidity of solution after immersion, influences denitrification effect.And Traditional biofilter replacement filler can spend a large amount of manpower and material resources, and trouble is inconvenient, increases operating cost.
By agricultural wastes, absorption basic mineral as adsorption layer and cohesive material as support, by be blended with Compounded carbons material made of package is the ideal carbon source in denitrification treatment process.Its characteristic includes that raw material is cheap and easy to get and can Effective absorption retention nitrogen and its coloration, the acidity for reducing leachate, reduce secondary pollution and build and be conducive to denitrification Living condition, the composite material after improvement has future in engineering applications.So the new sewage treatment process of research and extension and Equipment and corresponding control measure are necessary to solve these technical problems.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of coupling of drawer type biofilter is micro- Biological fuel cell composite system.
The present invention provides a kind of drawer type biofilters to couple microbiological fuel cell composite system, connects with water tank It connects, for handling the waste water in water tank, has the feature that, comprising: the first peristaltic pump is connected with water tank by water inlet pipe It connects, for extracting the waste water in water tank;First flowmeter is connect with peristaltic pump, for recording the flow velocity of waste water;Sink, with First flowmeter is connected to by water inlet pipe, for accommodating the waste water being drawn into;Microbiological fuel cell module, for waste water into Row initial breakdown, including be disposed adjacent with sink microbiological fuel cell reaction tank, be set to microbiological fuel cell and react By copper wire multiple groups anode plate and cathode plate interconnected and pass through in pond and between anode plate and cathode plate conducting wire The energy storage device of connection;Microorganism filter tank module, for being degraded again to the waste water after initial breakdown, including with microorganism Adjacent three be arranged successively the microbial reaction pond in fuel cell reaction pond, be set to it is multiple in each microbial reaction pond The drawer being overlapped mutually and the filler being placed in multiple drawers;Standby pool is disposed adjacent with third microbial reaction pond, For being placed through the water purified after microorganism filter tank module is degraded again, which is equipped with water purification water outlet; And water tank, it is connected to water purification water outlet by pure water pipe, for storing the water purified, wherein sink and Microbial fuel Between cell reaction pond, between microbiological fuel cell reaction tank and first microbial reaction pond, third microbial reaction It is provided with baffle plate between pond and standby pool, is provided with water outlet and inlet opening on baffle plate.
In drawer type biofilter provided by the invention coupling microbiological fuel cell composite system, there can also be this The feature of sample: where anode plate is modified carbon felt anode plate, and cathode plate is stainless steel cloth cathode plate, and drawer is stainless steel wire Net drawer, modified carbon felt anode plate are that the modifying manganese ore electrode plate being prepared using coating method or magnetic ferroferric oxide are modified Electrode plate, coating method include the following steps:
One of manganese mineral powder and ferroso-ferric oxide powder, acetylene black are weighed respectively according to the mass ratio of 8:1:1 and are gathered inclined Vinyl fluoride is then ground to after being thoroughly mixed and N-Methyl pyrrolidone is added and obtains slurries after stirring 4 hours, by slurries It is applied in carbon felt, obtains modifying manganese ore electrode plate or magnetic ferroferric oxide modified electrode plate.
In drawer type biofilter provided by the invention coupling microbiological fuel cell composite system, there can also be this The feature of sample: where sustained release carbon filler is to make using agricultural wastes, absorption basic mineral as adsorption layer and cohesive material For the compounded carbons material for supporting and being blended and wrapped up, alkaline matter is adsorbed by magnesium carbonate, calcium oxide and oxidation Iron ore material composition, partial size are 50-100 mesh, and sustained release carbon filler is cylindric, graininess or spherical, and porosity is 50%- 60%, mass percent shared by agricultural wastes is 90%-95%, adsorbs quality shared by the magnesium elements in basic mineral Percentage is 0%-2%, and mass percent shared by ferro element is 0%-3%, and mass percent shared by calcium constituent is 0%- 4%.
The action and effect of invention
Related drawer type biofilter couples microbiological fuel cell composite system according to the present invention, because of microorganism The electric energy of the storage of energy storage device possessed by fuel cell module can not only stimulate and reinforce the effect of the removal pollutant of microorganism Fruit, can be used for the water inlet system of illumination, drive system, so electric energy can be utilized effectively, reduce waste;Because of micro- life Filler in three microbial reaction ponds and drawer possessed by the module of object filter tank can degrade again to waste water, so Improve the treatment effect of waste water.Therefore, coupling microbiological fuel cell composite system in drawer type biofilter of the invention is real Show the in situ of microbiological fuel cell production capacity to utilize, the chemical energy of oxidation operation release passes through Microbial fuel electricity in waste water Pond is recycled in the form of electric energy, and by the processing of biofilter different functionalities, is improved the treatment effect of sewage, used Water water quality meets stringenter standard.
Detailed description of the invention
Fig. 1 is the structure of the drawer type biofilter coupling microbiological fuel cell composite system in the embodiment of the present invention Schematic diagram.
Specific embodiment
In order to which the technological means for realizing the present invention is easy to understand with effect, with reference to embodiments and attached drawing is to this Invention is specifically addressed.
Fig. 1 is the structure of the drawer type biofilter coupling microbiological fuel cell composite system in the embodiment of the present invention Schematic diagram.
As shown in Figure 1, a kind of drawer type biofilter of the invention couples microbiological fuel cell composite system 100, with Water tank (not shown) connection, for handling the waste water in water tank, comprising: the first peristaltic pump 1, first flowmeter 2, water Slot 3, microbiological fuel cell module, microorganism filter tank module, standby pool 6, water tank 7.
First peristaltic pump 1 is connect, for extracting the waste water in water tank by water inlet pipe with water tank.
First flowmeter 2 is connect with peristaltic pump 1, for recording the flow velocity of waste water.
Sink 3 is connected to first flowmeter 2 by water inlet pipe, for accommodating the waste water being drawn into.
Microbiological fuel cell module, for carrying out initial breakdown to waste water, including the microorganism being disposed adjacent with sink 3 Fuel cell reaction pond 401 is set in microbiological fuel cell reaction tank 401 and interconnected more by copper wire 402 Group anode plate 403 and cathode plate 404 and the energy storage dress being connect between multiple groups anode plate 403 and cathode plate 404 by conducting wire Set 405.
Anode plate 403 is modified carbon felt anode plate, and cathode plate 404 is stainless steel cloth cathode plate.
Modified carbon felt anode plate is that the modifying manganese ore electrode plate being prepared using coating method or magnetic ferroferric oxide are changed Property electrode plate, coating method include the following steps:
One of manganese mineral powder and ferroso-ferric oxide powder, acetylene black are weighed respectively according to the mass ratio of 8:1:1 and are gathered inclined Vinyl fluoride is then ground to after being thoroughly mixed and N-Methyl pyrrolidone is added and obtains slurries after stirring 4 hours, by slurries It is applied in carbon felt, obtains modifying manganese ore electrode plate or magnetic ferroferric oxide modified electrode plate.
Microorganism filter tank module, it is electric for being degraded again to the waste water after initial breakdown, including with Microbial fuel Adjacent three be arranged successively the microbial reaction pond 501 of pond reaction tank 401 is set in each microbial reaction pond 501 Multiple drawers 502 being overlapped mutually and the filler 503 being placed in multiple drawers.
Waste water is the organic wastewaters such as sugar production wastewater, beer waste water, food wastewater, pharmacy waste water or paper waste, filler 503 For one of carbon fiber brush filtrate, polypropylene filter material, carbon leaching material, zeolite filler, quartz sand filter media, ceramic grain filter or more Kind, microbial reaction pond 501 is intermittent aerating microbial reaction pond, for carrying out gap Aerobic Process for Treatment.
Waste water is low-carbon and nitrogen waste water, and filler 503 is sustained release carbon filler, anti-for carrying out to the enough carbon sources of microorganism offer Denitrogenation is nitrified, is additionally provided with the microorganism electrode connecting with energy storage device 405 in drawer 502, for being given by energy storage device 405 Microbial reaction pond 501 powers to stimulate denitrifying microorganism denitrogenation dephosphorizing.
It can mutually charge between microorganism electrode and energy storage device 405, energy is complementary to one another.
Be sustained carbon filler be by using agricultural wastes, absorption basic mineral as adsorption layer and cohesive material as Support, the compounded carbons material for being then blended and being wrapped up.
Absorption alkaline matter is made of magnesium carbonate, calcium oxide and iron oxide ore substance, and partial size is 50-100 mesh.
Sustained release carbon filler is cylindric, graininess or spherical, and porosity is 50%-60%.
Mass percent shared by agricultural wastes is 90%-95%, is adsorbed shared by the magnesium elements in basic mineral Mass percent is 0%-2%, and mass percent shared by ferro element is 0%-3%, and mass percent shared by calcium constituent is 0%-4%.
Drawer 502 is stainless steel cloth drawer.
The top of stainless steel cloth drawer 502 is fixed with handle 504, for extracting stainless steel cloth drawer out, then more Change filler 503.
Between sink 3 and microbiological fuel cell reaction tank 401, microbiological fuel cell reaction tank 401 and first it is micro- Between biological reaction pool 501, baffle plate 9 is provided between third microbial reaction pond 501 and standby pool 6, on baffle plate 9 It is provided with water outlet and inlet opening, for the water outlet and water inlet between each pond.
It is equipped on sink 3,401, three microbial reaction ponds 501 of microbiological fuel cell reaction tank and standby pool 6 The glass cover 12 fixed and with sealing ring 11 by screw 10, the sealing ring 11 is for being sealed each pond.
Multiple equidistant apertures are equipped on each glass cover 12, for allowing the insertion of copper wire 402 so as to by changing Become copper wire 402 is inserted into different apertures to adjust the position of copper wire 402, and then can adjust anode plate 403 and cathode plate 404 The distance between.
Standby pool 6 is disposed adjacent with third microbial reaction pond 501, for storing by microorganism filter tank module 5 again The water purified after secondary degradation, 6 bottom of standby pool are equipped with water purification water outlet 601.
Water tank 7 is connected to, for storing the water purified by pure water pipe with water purification water outlet.
Waste water is entered in sink 3 by the extracting of the first peristaltic pump 1 by water tank, and first flowmeter 2 records flow velocity, sink In 3 after water to certain capacity, waste water uniformly flows into microbiological fuel cell reaction tank 401 by baffle plate 9, initial breakdown Waste water flows into microbial reaction pond 501 by the inlet opening between pond, and waste water flows through the surface of filler 503 from top to bottom, by The microorganism on 503 surface of filler that drawer 502 loads further is degraded, and waste water passes through the drop in the microbial reaction pond 501 of three-wheel Solution, obtained purified water enter standby pool 6, are drained into water tank 7 by pure water pipe by water outlet.
It can also be arranged in a kind of drawer type biofilter coupling microbiological fuel cell composite system 100 of the present embodiment There is the backwash module for being backwashed to microbiological fuel cell reaction tank and three microbial reaction ponds 501, it should Backwash module include the second flowmeter 801 being connect with water tank 7 by backwash tube 804, with second flowmeter 801 by the Two peristaltic pumps 802 are connected and are respectively arranged between the second peristaltic pump 802 and microbiological fuel cell reaction tank 401 and three Four water check valves 803 on backwash tube 704 between microbial reaction pond 501.
In addition, the water that backwash module is backwashed is purified water, so solving the problems, such as waste water.
Embodiment one:
Waste water is artificial synthetic wastewater, contains 0.15g KCl, 0.2g MgSO in 1L synthetic wastewater4.7H2O、 9.45gNa2HPO4·12H2O、4.32gNaH2PO4·2H2O, 1.2g glucose, 1mL trace meter be molten and 1mL vitamin solution.
In the composite system 100, multiple groups anode plate 403 is connected with the circuit that cathode plate 404 forms and is stored up in charging process When energy device 405, voltage is 150 ± 5mV or so, and with the continuation of charging process, voltage is gradually risen to the left side 300m ± 10V It is right.The COD removal rate of microbiological fuel cell water outlet is 84.2%, and the COD removal rate of intermittent aerated biofilter water outlet is 96.9%.It wherein, is 8.9mg/L/h in the COD removal rate that microbiological fuel cell module 4 carries out the initial breakdown stage, The COD removal rate that microorganism filter tank module 5 is degraded again is 16.7mg/L/h, and total COD of the composite system 100 is removed Rate is 10.8mg/L/h.
Embodiment two:
Waste water is certain municipal wastewater treatment plant secondary effluent, and water quality is that COD is 35~50mg/L, and PH is 6.5~7.5, DO, NH3- N、NO3 -- N, TN mass concentration are respectively 5.0~7.8,0.3~1.0,10.8~14.8,11.6~16.6mg/L, hydraulic retention Time is 30min.
In the composite system 100, multiple groups anode plate 403 is connected with the circuit that cathode plate 404 forms and is stored up in charging process Can device 405 when, voltage is 70 ± 3mV or so, and with the continuation of charging process, voltage is gradually risen to 150m ± 7V or so. The COD removal rate 93.2% being always discharged, the TN removal rate being always discharged are 85.5%.
The action and effect of embodiment
According to embodiment one and embodiment two it is found that drawer type biofilter couples microbiological fuel cell composite system The COD removal rate and TN removal rate being always discharged are higher.
The drawer type biofilter according to involved in embodiment couples microbiological fuel cell composite system, because of microorganism The electric energy of the storage of energy storage device possessed by fuel cell module can not only stimulate and reinforce the effect of the removal pollutant of microorganism Fruit, can be used for the water inlet system of illumination, drive system, so electric energy can be utilized effectively, reduce waste;Because of micro- life Filler in three microbial reaction ponds and drawer possessed by the module of object filter tank can degrade again to waste water, so Improve the treatment effect of waste water.Therefore, the drawer type biofilter coupling microbiological fuel cell composite system of embodiment is real Show the in situ of microbiological fuel cell production capacity to utilize, the chemical energy of oxidation operation release passes through Microbial fuel electricity in waste water Pond is recycled in the form of electric energy, and by the processing of biofilter different functionalities, is improved the treatment effect of sewage, used Water water quality meets stringenter standard.
The drawer type biofilter according to involved in embodiment couples microbiological fuel cell composite system, because of anode plate For modified carbon felt anode plate, so can be improved the energy output power of system, and the removal rate of pollutant is improved, reach energy Amount effectively recycling, goes the purpose of depollution;Because being fixed with the handle for pull drawer at the top of stainless steel cloth drawer, institute With can in filler degradable component be exhausted fail when, filler can be taken out by drawer, then supplement new filler, Convenient replacement filler.
The drawer type biofilter according to involved in embodiment couples microbiological fuel cell composite system, because working as waste water Can to be biological utilisation carbon source when the organic wastewaters such as sugar production wastewater, beer waste water, food wastewater, pharmacy waste water or paper waste Insufficient low ratio of carbon to ammonium waste water, so processing waste water ability is stronger, removal effect is more excellent;Because of the energy when filler is compounded mix Enough effective absorption retention nitrogens and its coloration, so reducing the acidity of leachate;Because by microbiological fuel cell module It is combined with intermittent aerating biological reaction pool, combines the advantage of two kinds of technologies, electric energy is in microbiological fuel cell module stage It is recycled, while obtaining the synthetic wastewater of preliminary treatment, the Aerobic Process for Treatment of intermittent aerating biological reaction pool is passed through in this water outlet, fastly Its organic matter contained is aoxidized fastly, it is achieved that efficient sewage treatment.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.

Claims (3)

1. a kind of drawer type biofilter couples microbiological fuel cell composite system, it is connect with water tank, it is described for handling Waste water in water tank characterized by comprising
First peristaltic pump is connect, for extracting the waste water in the water tank by water inlet pipe with the water tank;
First flowmeter is connect with the peristaltic pump, for recording the flow velocity of the waste water;
Sink is connected to, for accommodating the waste water being drawn by the water inlet pipe with the first flowmeter;
Microbiological fuel cell module, it is micro- including being disposed adjacent with the sink for carrying out initial breakdown to the waste water Biological fuel cell reaction tank is set in the microbiological fuel cell reaction tank and by copper wire multiple groups interconnected Anode plate and cathode plate and the energy storage device being connect between the anode plate and the cathode plate by conducting wire;
Microorganism filter tank module is fired for being degraded again to the waste water after initial breakdown, including with the microorganism Adjacent three be arranged successively the microbial reaction pond in material cell reaction pond, be set to it is more in each microbial reaction pond A drawer being overlapped mutually and the filler being placed in the multiple drawer;
Standby pool is disposed adjacent, for being placed through microorganism filter tank module again with the third microbial reaction pond The water purified after secondary degradation, the spare bottom of pond portion are equipped with water purification water outlet;And
Water tank is connected to the water purification water outlet by pure water pipe, for storing the water purified,
Wherein, between the sink and the microbiological fuel cell reaction tank, the microbiological fuel cell reaction tank and Baffling is provided between one microbial reaction pond, between the third microbial reaction pond and the standby pool Plate is provided with water outlet and inlet opening on the baffle plate.
2. drawer type biofilter according to claim 1 couples microbiological fuel cell composite system, it is characterised in that:
Wherein, the anode plate is modified carbon felt anode plate, and the cathode plate is stainless steel cloth cathode plate, and the drawer is not Become rusty steel wire drawer,
The modified carbon felt anode plate is that the modifying manganese ore electrode plate being prepared using coating method or magnetic ferroferric oxide are changed Property electrode plate,
The coating method includes the following steps:
One of manganese mineral powder and ferroso-ferric oxide powder, acetylene black and polyvinylidene fluoride are weighed respectively according to the mass ratio of 8:1:1 Alkene is then ground to after being thoroughly mixed and N-Methyl pyrrolidone is added and obtains slurries after stirring 4 hours, by the slurries It is applied in carbon felt, obtains the modifying manganese ore electrode plate or the magnetic ferroferric oxide modified electrode plate.
3. drawer type biofilter according to claim 1 couples microbiological fuel cell composite system, it is characterised in that:
Wherein, the sustained release carbon filler is to make using agricultural wastes, absorption basic mineral as adsorption layer and cohesive material For the compounded carbons material for supporting and being blended and wrapped up,
The absorption alkaline matter is made of magnesium carbonate, calcium oxide and iron oxide ore substance, and partial size is 50-100 mesh,
The sustained release carbon filler is cylindric, graininess or spherical, and porosity is 50%-60%,
Mass percent shared by the agricultural wastes is 90%-95%,
Mass percent shared by magnesium elements in the absorption basic mineral is 0%-2%, quality hundred shared by ferro element Divide than being 0%-3%, mass percent shared by calcium constituent is 0%-4%.
CN201811275764.6A 2018-10-30 2018-10-30 A kind of drawer type biofilter coupling microbiological fuel cell composite system Pending CN109110911A (en)

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CN110228851A (en) * 2019-03-22 2019-09-13 中国环境科学研究院 A kind of drawer type microorganism battery coupling artificial wet land system
CN113860631A (en) * 2021-09-07 2021-12-31 江苏龙腾工程设计股份有限公司 Energy-saving and carbon-reducing integrated domestic sewage treatment device
CN113860631B (en) * 2021-09-07 2023-04-14 江苏龙腾工程设计股份有限公司 Energy-saving and carbon-reducing integrated domestic sewage treatment device

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