CN106946351A - A kind of self power generation micro-current organic matter degradation device and its application - Google Patents
A kind of self power generation micro-current organic matter degradation device and its application Download PDFInfo
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Abstract
The invention discloses a kind of self power generation micro-current organic matter degradation device and its application, described device is divided into micro-current and produces area and micro-current enhancement microbiological degraded area；The micro-current produces area and is connected with micro-current enhancement microbiological degraded area by check valve；The micro-current produces area and is anaerobism closed area and sets water inlet, to embed the carbon cloth of anaerobe as anode, using air cathode；The micro-current enhancement microbiological degraded area is aerobic open area and sets delivery port, and the titanium net to fix aerobic microbiological using titanium rod as negative electrode, and sets agitating device as anode；The micro-current produces the anode in area and the anode in micro-current enhancement microbiological degraded area is connected by wire, the micro-current produces the negative electrode in area and the negative electrode in micro-current enhancement microbiological degraded area is connected by wire, and the agitating device is connected with being connected the wire of two negative electrodes and two anodes respectively by wire.The present invention has that floor space is small, the low advantage of processing cost.
Description
(1) technical field
The present invention relates to a kind of processing method of industrial wastewater, enhancement microbiological is stimulated using the micro-current of itself generation
The performance of mixed bacterial degradation of organic substances, improves the removal efficiency of organic matter, and the more particularly to device pollutes in difficult for biological degradation
Application in thing processing and advanced treating.
(2) background technology
With a large amount of discharges of sanitary sewage, industrial wastewater, water environment pollution situation goes from bad to worse, and water pollution control is current
It is more urgent in China's demand.In numerous water pollution treatment technologies, bioanalysis is because its low cost, energy consumption are small, microorganism is going
Play the role of unique in depollution thing and be considered as one of green technique.However, industrial wastewater composition is increasingly sophisticated, go out
Showed the material of many difficult for biological degradation, it is such as chloride, containing nitro to poisonous and harmful compound so that common biotechnology can not
High-efficient purification.
In past 20 years, Wastewater by Electric oxidation technology is got a larger development, especially in electrode material, electroxidation work
Breakthrough is achieved in terms of skill, new electro-oxidation reactor, in terms of industrial wastewater, especially used water difficult to degradate, is played
Important effect.
In order to improve the treatment effect of waste water, while reducing the processing cost of waste water, the combination of various processing methods or coupling
Technique is closed increasingly by researcher to be paid attention to.Electro-biometric coupling technique arises at the historic moment.Both there is the coupling technique bioanalysis to pass through
The characteristics of energy-conservation, extensive electroxidation technical finesse object and good effect of helping, and the shortcoming of two kinds of technologies is made full use of, it is converted into
Advantage is used for other side.The heat production of such as electrochemical reaction, liberation of hydrogen, analysis oxygen, the side reaction of electron transfer are used in biological respinse,
Can greatly improve current efficiency and treatment effect；Electric field can improve the activity of the molecule or ion of participating in electrochemical reaction,
Activation energy needed for making reaction is substantially reduced, so most of electrochemical reaction can be much lower more than chemically reacting usually
At a temperature of carry out.
Application number CN201420333276.7 patent discloses a kind of electro-biometric film coupling water treatment facilities, including anti-
Answer and positive and negative electrode be provided with device main body and power supply, reactor body, microbe carrier stuffing be located at positive electrode and negative electrode it
Between, it is adapted to the below standard biochemical tail water of processing.The patent is ordinary electrode due to the electrode used, and microorganism is actually load
It is not supported on really on electrode on filler, biologic packing material suspends in the reactor in suspended state, says from the strict sense
Electroxidation and biological treatment are two independent systems and real coupling, therefore the lifting for the treatment of effect is limited.In addition, should
The electric energy input of electro-biometric coupling water treatment facilities needs extraneous offer, is not carried out self-sufficiency.
Application No. CN105858890A patent discloses a kind of Dynamic Membrane based on microbiological fuel cell and detested
Oxygen ----aerobic process for treating sewage, sewage is become reconciled oxygen cathode pond by anaerobism anode pool, and acts on anaerobism in constant flow pump
With the continuous circular treatment of Aerobic Pond, so as to reach the purpose of purification.Biomembrane is to rely on the dynamic film component that the patent is related to
Microorganism being carried in sewage in reactor running and being slowly enriched with and formed, these microorganisms are without the purification organic dirt of difficult degradation
The ability of thing is contaminated, so that this method can not handle Recalcitrant chemicals.Dynamic film component is separated with electrode, microorganism
It is attached on membrane module rather than on electrode.If contained microorganism is few in water inlet, possibly biomembrane can not be formed, entered without having
There is electricity generation ability.In addition, size of current and its whereabouts that the patent is not publicly produced.
Application No. CN106006929A patent discloses a kind of photoelectrocatalysis film coupling microbiological fuel cell whole day
The method for waiting processing sewage, membrane filtration system is coupled by building MFC-PFC, is realized processing water free of discontinuities and is produced electricity, compensate for
The deficiency of independent MFC and PFC techniques.This method is applied to the processing of some slight sewage (such as landscape water), difficult without purification
The ability of degradation of contaminant, the source for being primarily due to its microorganism is into water.In addition, the device needs the input of luminous energy, if
Not compared with intense light irradiation, then treatment effeciency is very low, such as cloudy day or night, treatment effeciency daytime stronger well below illumination.
Application No. CN102616918A patent discloses a kind of direct-coupling membrane bioreactor and Microbial fuel
The reactor and method of wastewater treatment of battery, Application No. CN103159331A patent disclose a kind of photocatalysis and cooperate with micro- life
The method and device that thing fuel cell technology processing sewage generates electricity simultaneously.Technology involved by the above patent is all to give birth to film
Thing component is immersed in same reactor with electrode and (does not account for reciprocal influence), and microorganism is in suspended state or is supported on
On filler, the formation of biomembrane source is that microorganism is carried in raw wastewater, film forming speed it is relatively slow and for hardly degraded organic substance not
With degradation effect；In addition, the electric energy size and whereabouts that produce are not specified yet.
(3) content of the invention
It is an object of the present invention to provide a kind of method of self power generation micro-current organic matter degradation device and its degradation of organic waste water,
Purification and the deep purifying of hardly degraded organic substance are completed, is strengthened using the Weak current produced in microbiological anaerobic degradation process
The microorganism aerobic degradation process of organic matter, realizes the closed cycle of energy, it is not necessary to additional input energy.
The technical solution adopted by the present invention is：
The present invention provides a kind of self power generation micro-current organic matter degradation device, and described device is divided into micro-current and produces Qu Hewei
Electric current enhancement microbiological degraded area；The micro-current produces area and is connected with micro-current enhancement microbiological degraded area by check valve；
The micro-current produces area and is anaerobism closed area and sets water inlet, and the carbon cloth to embed anaerobe is used as anode
Air cathode；The micro-current enhancement microbiological degraded area is aerobic open area and sets delivery port, with fixed aerobic micro- life
The titanium net of thing is anode, using titanium rod as negative electrode, and sets agitating device；The micro-current produces the anode in area and micro-current is strengthened
The anode in microbial degradation area is connected by wire, and the micro-current produces negative electrode and the micro-current enhancement microbiological degraded area in area
Negative electrode connected by wire, the agitating device is connected with being connected the wire of two negative electrodes and two anodes respectively by wire
Connect.
Further, the carbon cloth of the embedding anaerobe is by anaerobe and mass concentration 40-60% polytetrafluoros
The ethene aqueous solution, 2.5-5g/L carbon dusts aqueous dispersions stir to form pastel in the absence of oxygen, are uniformly applied on carbon cloth
It is made；The polytetrafluoroethyl-ne aqueous solution is 1 with carbon dust aqueous dispersions volume ratio：0.05-0.5.
Further, the anaerobe is following one or more mixing：Ralstonia pickettii L2
(CCTCC NO.M209250)Zoogloea resiniphila HJ1(CCTCC NO.M2012235)、Pseudomonas
Veronii ZW (CCTCC NO.M209313) or Pseudomonas oleovorans DT4 (CCTCC NO.M209151).
Further, the anaerobe inoculum concentration using polytetrafluoroethyl-ne aqueous solution and carbon dust aqueous dispersions total volume meter as
1×108-1×1010Individual/mL.
Further, the titanium net of the fixed aerobic microbiological is by aerobic microbiological and aerobic activated sludge, mass concentration
10%-50% arginine-glycine-aspartic acid aqueous solution mixing, wherein arginine-glycine-aspartic acid mass ratio
For 1：1：1, it is then attached to titanium net surface and is made；The arginine-glycine-aspartic acid aqueous solution volumetric usage is with aerobic
Activated sludge quality is calculated as 1-10mL/g.
Further, the aerobic microbiological be Pandoraea pnomenusa flx-1 (CCTCC NO.M2011242) or
One or two kinds of mixing in Staphylococcus pasteuri LWX (CCTCCNO.M 2014259).
Further, the aerobic microbiological inoculum concentration with aerobic activated sludge and mass concentration 10%-50% arginine-
Gly-Asp aqueous solution total volume meter is 1 × 107-1×109Individual/mL.
The present invention also provides a kind of application of self power generation micro-current organic matter degradation device in processing organic wastewater,
Described application is：Micro-current is pumped into from water inlet as water inlet in 50-1000mg/L organic wastewater using COD concentration and produces area,
Open check valve, it is 6-12h, micro-current enhancement microbiological degraded area's waterpower that waste water produces hydraulic detention time in area in micro-current
Residence time is 5-10h, and it is 1 that micro-current, which produces area with micro-current enhancement microbiological degraded area's hydraulic detention time ratio,：0.5-1,
Detect delivery port water outlet, qualified discharge.
Further, the organic wastewater composition is：50-600mg/L dichloromethane, Na2HPO414mmol/L、
KH2PO414mmol/L, MgSO4 0.2g/L、NH4Cl 0.3g/L、CaCl2 0.07g/L、ZnCl2 0.05g/L、
CuCl20.04g/L、CoCl20.08g/L, vitamin B12 0.05g/L, solvent are deionized water, pH=7.0-7.2.
Self power generation micro-current organic matter degradation device of the present invention is divided into micro-current and produces area and the micro- life of micro-current reinforcing
Thing degraded area, Liang Ge areas are separate, and centre is connected by check valve, and it is strong that waste water can only flow to micro-current from micro-current generation area
The electric current changed between microbial degradation area, twoth area is transmitted by wire.It is anaerobic zone, obturator that micro-current, which produces area,
System, the microorganism species with special degradation function are fixed on anode by the method for embedding, and anode material is used through pre-
Treated carbon cloth；Negative electrode uses air cathode, and (setting proton membrane) is simultaneously contacted with solution, and one side is exposed to air in addition
In, the micro-current produced is drawn in the two poles of the earth by wire respectively.Micro-current enhancement microbiological degraded area is aerobic region, open body
System, provided with agitating device.The titanium net that electrode anode is crossed using surface treated, relative coarseness can be with specific degradation function
Aerobic microbiological flora more adsorption sites are provided, negative electrode uses titanium rod.Anode and negative electrode difference extraction wire, with micro- electricity
The negative electrode (positive pole) in the raw area of miscarriage is connected with anode (negative pole).
Typically, micro-current produce area and micro-current enhancement microbiological degraded area solution be simulated wastewater, except containing
Pending processing organic contamination beyond the region of objective existence, often nutrient and trace element containing growth of microorganism, and delay with certain pH
Rush ability (needing to add phosphate buffer solution if necessary).
It is specific degradation bacteria strains that micro-current, which produces anaerobe in area, and China typical culture collection is deposited at present
Center：Ralstonia pickettii L2 (M209250, disclosed in patent application 201010181332.6),
Zoogloea resiniphila HJ1 (M2012235, disclosed in patent application 201310281412.2),
Pseudomonas veronii ZW (M209313, disclosed in patent application 201010108779.0), Pseudomonas
Oleovorans DT4 (M209151, disclosed in patent application 200910154838.5).These bacterium are in anaerobism or anoxic bar
There is degradation effect for chloride, oxygen-containing and complex structure organic matter under part.Degraded for reinforcing mentioned microorganism
Electronics is smoothly transmitted in journey, when preparing mixed bacterial, a certain amount of anaerobic activated sludge (containing bacterium is produced electricity) need to be added and be used as and open
Reason.Above-mentioned bacterium solution formation pastel is mixed using polytetrafluoroethylsolution solution, liquid toner dispersion in the absence of oxygen, uniformly
It is applied on carbon cloth, is used as anode.
Micro-current enhancing degradation area aerobic microbiological is specific degradation bacteria strains, and Chinese Typical Representative culture is also deposited at present
Collection (China, Wuhan)：Pandoraea pnomenusa LX-1 (M2011242, in patent application
Disclosed in 201110370070.2), Staphylococcus pasteuri LWX (M 2014259, in patent application
Disclosed in 201410582189.X).These bacterium can be degraded under aerobic condition, and the structures such as aliphatic acid, aldoketones are relatively simple to be had
Machine thing.Simultaneously in order to preferably realize the thorough remineralization efficacy of pollutant, a certain amount of aerobic activated sludge is added, to expand substrate
Utilization scope.Using many titaniums (such as arginine-glycine-aspartic acid, write a Chinese character in simplified form RGD) as connection carrier, by above-mentioned mixing
Bacterium solution is fixed to titanium net surface, is used as anode.
Compared with prior art, the beneficial effects are mainly as follows：
1. energy closed cycle.The micro- electricity produced in anaerobic reaction region, anaerobism bacterial strain when using hardly degraded organic substance
Stream passes to aerobic microbiological by wire, stimulates their metabolic activity, improves degradation efficiency.Anaerobic zone part
Can be converted into electric energy so that the energy-autarchic of a whole set of reaction system is self-sustaining, it is not necessary to additional input electric energy, realizes energy
Closed cycle.And conventional anaerobism or aerobe reactor is, it is necessary to which extraneous provide certain energy.
2. the substrate object of processing is expanded.The device is not only suitable for the processing of general organic pollution, is especially suitable for hardly possible
The processing of degradable organic pollutant (such as chlorinated organics, itrogenous organic substance).Pending waste water sequentially passes through anaerobic-aerobic
Area, the larger group of chemical bond energy is broken off first, the relatively simple organic matter of structure is formed, into aerobic zone by thorough ore deposit
Change, realize thorough removal and the deep purifying of pollutant.
3. structure of reactor is simplified.The reaction of present apparatus anaerobic and aerobic is realized in same reactor, by unidirectional
The setting of valve, hardly degraded organic substance sequentially passes through anaerobism and aerobic zone, and by chemical energy and electric transformation of energy, realizes pollutant
Thorough mineralising and deep purifying.
The present invention realizes the closed cycle of energy and material, is not required to outer additional input energy, utilizes the organic dirt of difficult degradation
The chemical energy that dye thing itself has, realizes the conversion between chemical energy-electric energy-biological energy source, finally realizes the thorough ore deposit of pollutant
Change and deep purifying, with floor space is small, the low advantage of processing cost.
(4) illustrate
Fig. 1 is self power generation micro-current organic matter degradation schematic device, and 1 micro-current produces area, 2 micro-current enhancement microbiologicals
Degrade area, 3 check valves, 4 water inlets, the carbon cloth of 5 embedding anaerobes, 6 air cathodes, 7 delivery ports, 8 titanium nets, 9 titanium rods, 10
Agitating device.
Fig. 2 is Purification approach of the Recalcitrant chemicals in the present apparatus.
Fig. 3 is chlorion generation situation and CO during processing dichloromethane2Production.
Fig. 4 is common anaerobic-aerobic reaction unit schematic diagram, 1 anaerobic zone, 2 aerobic zones, 3 check valves, 4 water inlets, 5
Delivery port, 6 agitating devices.
Fig. 5 is that device of the present invention is compared with the effect that common anaerobic and aerobic reactors handle actual waste water, and a is this
Invention device, the common aerobic-anaerobic reactors of b.
(5) embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This：
Embodiment 1：The device processing of micro-current reinforcing mixed bacterial degradation property with spontaneous electrical function contains dichloromethane
Waste water
A kind of reference picture 1, self power generation micro-current organic matter degradation device, described device is divided into micro-current and produces (the waste water of area 1
Volume 200mL) and micro-current enhancement microbiological degraded area 2 (wastewater volume 50mL)；The micro-current produces area 1 and micro-current is strong
Change microbial degradation area 2 to connect by check valve 3；The micro-current produces area and is anaerobism closed area and sets water inlet 4, with
The carbon cloth 5 for embedding anaerobe is anode, using air cathode 6；The micro-current enhancement microbiological degraded area opens to be aerobic
Put region and delivery port 7 is set, be anode with the titanium net 8 for fixing aerobic microbiological, be negative electrode with titanium rod 9, and set stirring to fill
Put 10；The micro-current produces the anode in area and the anode in micro-current enhancement microbiological degraded area is connected by wire, described micro-
Electric current produces the negative electrode in area and the negative electrode in micro-current enhancement microbiological degraded area is connected by wire, and the agitating device is by leading
Line is connected with being connected the wire of two negative electrodes and two anodes respectively.
It is described embedding anaerobe carbon cloth preparation method be：2*10 will be contained9Individual Ralstonia pickettii
L2 (M209250) and 5*108The bacteria suspension 5mL of individual Zoogloea resiniphila HJ1 (M2012235) adds 2.5g through length
The anaerobism electricity production sludge (using conventional anaerobism electricity production sludge acclimatization method) of phase domestication, adds the polytetrafluoroethyl-ne of volumetric concentration 50%
Aqueous solution 60mL, 15mL3.0g/L carbon dust aqueous dispersions are mixed, and stirring in the absence of oxygen forms pastel, uniform to smear
On 4cm*4cm carbon cloths, anode is used as.Negative electrode uses air cathode, and (setting proton membrane) is simultaneously contacted with solution, in addition one side
Exposure is in atmosphere.
The titanium net of the fixed aerobic microbiological is prepared as follows：By 5*109Individual Pandoraea pnomenusa
LX-1 (M2011242) and 6*108Individual Staphylococcus pasteuri LWX (M 2014259) add what 3.0g was tamed
Aerobic activated sludge (using the acclimation method of conventional aerobic activated sludge), add the arginine of 15mL mass concentrations 10%-
(mass ratio of three is 1 to the Gly-Asp aqueous solution：1：1) as connection carrier, above-mentioned mixed liquor is coated to
On 4.5cm*4.5cm titanium nets surface, anode is used as.Negative electrode uses titanium rod.
Organic wastewater composition is as follows：Dichloromethane 50mg/L, Na2HPO414mmol/L、KH2PO414mmol/L, MgSO4
0.2g/L、NH4Cl 0.3g/L、CaCl2 0.07g/L、ZnCl2 0.05g/L、CuCl20.04g/L、CoCl20.08g/L, dimension life
Plain B12 0.05g/L, solvent is deionized water, pH=7.0-7.2.
Method of wastewater treatment：Micro-current is pumped into by water inlet of the organic wastewater of the dichloromethane containing 50mg/L from water inlet to produce
Area, open check valve, organic wastewater is 7.5h in anaerobic zone hydraulic detention time, and in aerobic zone, hydraulic detention time is 3h, inspection
Measure mouth of a river water outlet, qualified discharge.Otherwise water inlet is returned to continue to react.
When reactor just starts, either aerobic biologic membrane or anaerobic organism film, all do not adapt to environment also.Therefore need
First additional micro-current supplies aerobic zone and agitating device.
After 20d, after micro-current produces the micro-current that area produces continuous-stable, micro-current is produced into area and micro-current is strengthened
Microbial degradation area is connected with wire, and this post-reactor enters stable operation stage, and concentration dichloromethane is with 50mg/L amplitude
300mg/L is increased to by 50mg/L.Fig. 3 be respectively reactor operation 30d in aerobic reaction region water outlet chlorion concentration and
CO2Yield.
From map analysis, in stable operation stage, the yield of whole system chlorion is basic in 130mg/L or so,
CO2Yield is stable in 80g/m in 30d-70d3, there is individual lifting process in the later stage, final stable in 110g/m3, illustrate now to give up
Dichloromethane mineralization degree is higher in water.
Embodiment 2：The device and common anaerobic-aerobic of micro-current reinforcing mixed bacterial degradation property with spontaneous electrical function
Biological reaction apparatus compares for actual waste water treatment effect
Containing pollutants such as benzene, tetrahydrofurans in certain actual organic wastewater, total COD concentration is in 50-500mg/L.Using reality
The self power generation micro-current organic matter degradation device of example 1 is applied to be purified, and with common anaerobic-aerobic biological reaction apparatus (Fig. 4,
The common unit is divided into anaerobic zone 1 and aerobic zone 2；The anaerobic zone is connected with aerobic zone by check valve 3；The anaerobic zone
Water inlet 4 is set；The aerobic zone sets delivery port 5, and sets agitating device 6, and the electric installation is connected with external power) ratio
Compared with.
Electrode fabrication process of the present invention is as follows：
Micro-current produces area：5*10 will be contained9Individual Ralstonia pickettii L2 (M209250) and 2*109It is individual
Zoogloea resiniphila HJ1(M2012235)、1*108Individual Pseudomonas veronii ZW (M209313) and 3*
109The bacteria suspension 4mL of individual Pseudomonas oleovorans DT4 (M209151) adds anaerobism productions of the 2.5g through taming for a long time
Electric sludge, adds the mixing of polytetrafluoroethyl-ne aqueous solution 200mL, 20mL2.5g/L carbon dust aqueous dispersions of mass concentration 60%, in nothing
Stirring forms pastel under conditions of oxygen, is uniformly applied on 4cm*4cm carbon cloths, is used as anode.Negative electrode uses air cathode, one
Face contacts (setting proton membrane) with solution, and one side exposes in atmosphere in addition.
Micro-current enhancement microbiological degraded area, by 1*108Individual Pandoraea pnomenusa LX-1 (M2011242) and
7*109Individual Staphylococcus pasteuri LWX (M 2014259) add the aerobic activated sludge that 2.5g was tamed, then
(mass ratio of three is 1 to the arginine-glycine-aspartic acid aqueous solution of addition 10mL mass concentrations 30%:1:1) as company
Body is carried, above-mentioned mixed liquor is coated on 4.5cm*4.5cm titanium nets surface, anode is used as.Negative electrode uses titanium rod.
Benzene, tetrahydrofuran etc. are added into organic wastewater as pending pollutant, concentration is using method is stepped up, always
COD is gradually risen to 500mg/L by 50mg/L.Method of wastewater treatment：Constituted with benzene containing COD50mg/L, tetrahydrofuran mixing
Organic wastewater for water inlet from water inlet be pumped into micro-current produce area, open check valve, organic wastewater is in anaerobic zone hydraulic retention
Between be 6h, in aerobic zone hydraulic detention time be 3.5h, detect delivery port water outlet, qualified discharge.Otherwise water inlet is returned to continue
Reaction.Other operation be the same as Examples 1.
After 25d, after micro-current produces the micro-current that area produces continuous-stable, micro-current is produced into area and micro-current is strengthened
Microbial degradation area is connected with wire, and this post-reactor enters stable operation stage, total COD concentration with 100mg/L amplitude by
50mg/L is increased to 400-500mg/L.COD concentration in monitoring water inlet and water outlet, is as a result shown in Fig. 5.
Microorganism group in common anaerobic-aerobic biological reaction apparatus in different zones into it is above-mentioned identical, two regions it
Between be also provided with check valve, the agitating device electricity of aerobic zone is provided by external power.COD concentration in monitoring water inlet and water outlet, is as a result shown in
Fig. 5.
Fig. 5 compares two reaction units COD concentration in steady operation period water inlet and water outlet.It can be found that of the invention
The device effluent COD concentration of development is stable in 40-50mg/L, and far smaller than common anaerobic-aerobic reaction unit illustrates it more
It is adapted to oxidation and the deep purifying of used water difficult to degradate.
Embodiment 3：Specific micro- life is used in the device of micro-current reinforcing mixed bacterial degradation property with spontaneous electrical function
Thing is compared with using ordinary activated sludge for actual waste water treatment effect
Containing pollutants such as benzene, tetrahydrofurans in certain actual organic wastewater, total COD concentration is in 50-1000mg/L.Using reality
Apply the self power generation micro-current organic matter degradation device of example 1 to be purified, specified microorganisms and ordinary activated sludge conduct are respectively adopted
Microbe inoculation, compares their treatment effects for simulated wastewater.
Using method for making its electrode and microbial inoculant method be the same as Example 2 of the specified microorganisms as microbe inoculation.
It is as follows as the method for making its electrode of microbe inoculation using ordinary activated sludge：
Micro-current produces area：Anaerobism electricity production sludge of the 2.5g through taming for a long time (is taken to anaerobism and produces electricity bioreactor, adopted
With glucose as the carbon source in waste water, continuously generate voltage peak it is close when be the sludge for meeting and requiring), add quality
Polytetrafluoroethyl-ne aqueous solution 150mL, 20mL 4g/L carbon dusts aqueous dispersions of concentration 60% are mixed, and shape is stirred in the absence of oxygen
Into pastel, uniformly it is applied on 4cm*4cm carbon cloths, is used as anode.Negative electrode uses air cathode, simultaneously contacts and (sets with solution
Put proton membrane), one side exposes in atmosphere in addition.
Micro-current enhancement microbiological degraded area, the aerobic activated sludge that 2.5g was tamed (take to aerobe reactor,
Using tetrahydrofuran, benzene as carbon source, if pH is decreased obviously in a degradation cycle, the sludge obtained for meet
It is required that activated sludge), adding the arginine-glycine-aspartic acids of 10mL mass concentrations 30%, (mass ratio of three is
1:1:1) as connection carrier, above-mentioned mixed liquor is coated on 4.5cm*4.5cm titanium nets surface, anode is used as.Negative electrode is used
Titanium rod.
Benzene, tetrahydrofuran etc. are added into organic wastewater as pending pollutant, concentration is using method is stepped up, always
COD is gradually risen to 1000mg/L by 50mg/L.Method of wastewater treatment：With the 50mg/L of concentration containing COD benzene, tetrahydrofuran mixing group
Into organic wastewater for water inlet from water inlet be pumped into micro-current produce area, open check valve, simulated wastewater is in anaerobic zone (micro-current
Producing area) hydraulic detention time is 10h, is 5h, inspection in aerobic zone (micro-current enhancement microbiological degrade area) hydraulic detention time
Measure mouth of a river water outlet, qualified discharge.Otherwise water inlet is returned to continue to react.Other operation be the same as Examples 1.
When reactor just starts, either aerobic biologic membrane or anaerobic organism film, all do not adapt to environment also.Therefore need
First additional micro-current supplies aerobic zone and agitating device.Due in process of the test, inoculation is used as using only activated sludge
The reactor of microorganism produces electric current can not drive aerobic region agitating device to operate all the time, so impressed current needs a direct-furnish
Give.
After 32d, specified microorganisms to be employed produce the micro- of continuous-stable as the reactor anaerobic zone of microbe inoculation
After electric current, anaerobic zone and aerobic zone are connected with wire, this post-reactor enters stable operation stage, with 100mg/L amplitude
Total COD concentration is first increased to 400-500mg/L by 50mg/L, maintains to be increased to 1000mg/L again after 20d (to adjust referring to table 1
It is whole).Table 1 compares their treatment effect.It can be found that add the device that activated sludge starts using specified microorganisms, for
The treatment effect of actual waste water illustrates specified microorganisms whole far better than the same device started only with activated sludge
The effect of key is served during plant running.
Table 1 uses the reaction unit treatment effect of different vaccination microorganism
Claims (8)
1. a kind of self power generation micro-current organic matter degradation device, it is characterised in that described device is divided into micro-current and produces area and micro- electricity
Flow enhancement microbiological degraded area；The micro-current produces area and is connected with micro-current enhancement microbiological degraded area by check valve；Institute
State micro-current and produce area and be anaerobism closed area and water inlet is set, to embed the carbon cloth of anaerobe as anode, using sky
Gas negative electrode；The micro-current enhancement microbiological degraded area is aerobic open area and sets delivery port, to fix aerobic microbiological
Titanium net be anode, using titanium rod as negative electrode, and agitating device is set；The micro-current produces the anode in area and micro-current strengthens micro-
The anode in biodegradable area is connected by wire, and the micro-current produces negative electrode and the micro-current enhancement microbiological degraded area in area
Negative electrode is connected by wire, and the agitating device is connected with being connected the wire of two negative electrodes and two anodes respectively by wire.
2. self power generation micro-current organic matter degradation device as claimed in claim 1, it is characterised in that under the anaerobe is
Arrange one or more mixing：Ralstonia pickettii、Zoogloea resiniphila、Pseudomonas
Veronii or Pseudomonas oleovorans.
3. self power generation micro-current organic matter degradation device as claimed in claim 1, it is characterised in that the embedding anaerobe
Carbon cloth be that anaerobe and mass concentration 40-60% polytetrafluoroethyl-nes aqueous solution, 2.5-5g/L carbon dust aqueous dispersions exist
Stirring forms pastel under conditions of anaerobic, is uniformly applied on carbon cloth and is made；The polytetrafluoroethyl-ne aqueous solution and carbon dust water
Dispersion liquid volume ratio is 1：0.05-0.5.
4. self power generation micro-current organic matter degradation device as claimed in claim 3, it is characterised in that the anaerobe inoculation
Amount is using polytetrafluoroethyl-ne aqueous solution and carbon dust aqueous dispersions total volume meter as 1 × 108-1×1010Individual/mL.
5. self power generation micro-current organic matter degradation device as claimed in claim 1, it is characterised in that the aerobic microbiological is
One or two kinds of mixing in Pandoraea pnomenusa or Staphylococcus pasteuri.
6. self power generation micro-current organic matter degradation device as claimed in claim 1, it is characterised in that the fixed aerobic microbiological
Titanium net be by aerobic microbiological and aerobic activated sludge, mass concentration 10%-50% arginine-glycine-aspartic acid
The aqueous solution is mixed, and is then attached to titanium net surface and is made；Arginine in the arginine-glycine-aspartic acid aqueous solution-sweet
Propylhomoserin-aspartic acid mass ratio is 1：1：1, the arginine-glycine-aspartic acid aqueous solution volumetric usage is with aerobic activity
Sludge quality is calculated as 1~10mL/g.
7. self power generation micro-current organic matter degradation device as claimed in claim 6, it is characterised in that the aerobic microbiological inoculation
Amount is using aerobic activated sludge and mass concentration 10%-50% arginine-glycine-aspartic acid aqueous solution total volume meter as 1
×107-1×109Individual/mL.
8. a kind of application of the self power generation micro-current organic matter degradation device described in claim 1 in processing organic wastewater, it is special
Levy is that described application is：Using COD concentration 50-1000mg/L organic wastewater as water inlet, micro-current production is pumped into from water inlet
Raw area, open check valve, it is 6-12h, the degraded of micro-current enhancement microbiological that waste water produces hydraulic detention time in area in micro-current
Area's hydraulic detention time is 3~10h, and it is 1 that micro-current, which produces area with micro-current enhancement microbiological degraded area's hydraulic detention time ratio,：
0.5-1, detects delivery port water outlet, qualified discharge.
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