CN105712469B - Aerobic drum-type microbial film electrochemical reactor and its application - Google Patents
Aerobic drum-type microbial film electrochemical reactor and its application Download PDFInfo
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- CN105712469B CN105712469B CN201610080872.2A CN201610080872A CN105712469B CN 105712469 B CN105712469 B CN 105712469B CN 201610080872 A CN201610080872 A CN 201610080872A CN 105712469 B CN105712469 B CN 105712469B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
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- Hydrology & Water Resources (AREA)
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- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Molecular Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of aerobic drum-type microbial film electrochemical reactor and its applications, electrochemical reactor includes shell, anode membrane module in shell and cathode membrane module, the power supply being connected with anode and cathode, anode membrane module includes being set to two runners that in shell and can be rotated, and the anode of the tubular between two runners, runner carry circumferentially distributed blade, anode has the first conductive material layer for attached growth of microorganisms；Cathode membrane module includes the cathode being located in shell, and for the second conductive material layer of attached growth of microorganisms；Shell sets out water inlet pipe of the mouth of a river towards blade, and shell is further opened with height and is less than runner top surface, is higher than the water outlet of runner bottom surface；The height of water outlet is higher than anode bottom surface, cathode have position less than water outlet be covered with the second conductive material layer enter water section.The present invention is to good sewage processing effect and aeration structure need not additionally be arranged, and the present invention also provides the applications of chemical reactor.
Description
Technical field
The present invention relates to sewage disposal more particularly to a kind of aerobic drum-type microbial film electrochemical reactor and its answer
With.
Background technology
With social progress and economic development, the energy crisis in global range and problem of environmental pollution getting worse, newly
Emerging pollution just increasingly causes extensive concern, explores new technology and approach to mitigate as the environmental problem for influencing human health
The pressure of natural environment and the ecosystem is extremely urgent.
There is Ecology and human health potential tight antibiotic in the low-pollution waters such as sewage treatment plant tail water, pollution of area source water
It endangers again.Traditional microbial film electrochemical reactor (biofilm-electrode reactor, BER), which has, effectively to be destroyed
The ability of antibiotic molecule structure.Particularly, microbial film electrochemical reactor only needs electric current that could run, and microorganism is in
In specific electric field, electrocatalysis, activation or the growth of enhancing certain micro-organisms or enzymatic activity are generated.
The configuration of BER is affected to the removal of water pollutant, traditional BER be anaerobism or anoxic sewage-treatment plant,
However some hardly degraded organic substances such as antibiotic are preferable in aerobic degradation effect, therefore in order to improve sewage disposal effect
Fruit needs additionally to be aerated, increases operation cost.
Invention content
Goal of the invention：For problems of the prior art, the present invention provides one kind, and aeration need not be additionally arranged
The aerobic drum-type microbial film electrochemical reactor of structure, it is a further object to provide the aerobic drum-types
The application of microbial film electrochemical reactor.
Technical solution：Aerobic drum-type microbial film electrochemical reactor of the present invention, including shell are set to described
Anode membrane module in shell and cathode membrane module, and the power supply that is connected respectively with anode and cathode,
The anode membrane module include be set in shell and two runners can rotating, and set on two runners it
Between tubular anode, the runner carries along the circumferentially distributed blade of runner, and the anode has to be adhered to for microorganism
First conductive material layer of growth；
The cathode membrane module includes the cathode being arranged in shell, and for the second conduction of attached growth of microorganisms
Material layer；
The shell is equipped with water inlet pipe of the water outlet towards blade, and the shell is further opened with water outlet, it is described go out
The height at the mouth of a river is less than the top surface of the runner, is higher than the bottom surface of the runner；The height of the water outlet is higher than the anode
Bottom surface, there is the cathode position to enter water section less than water outlet, and the surface for entering water section is covered with described second
Conductive material layer.
In the present invention, the water outlet water good for emission treatment, water inlet pipe is for being passed through sewage into shell, at sewage
When managing process stabilizing, a part for runner is on the water surface, and another part is under the water surface, due to the water outlet of water inlet pipe
Towards blade, when being passed through sewage, water impact blade drives runner rotation, and runner is due to being partly exposed on the water surface (i.e. air
In), during rotation, air can be brought into sewage and be stirred, to increase the dissolved oxygen in sewage.Those skilled in the art are aobvious
Right understanding, to make runner rotate, the water outlet direction of water inlet pipe is the blade being exposed on the water surface.The position of water outlet exists
While ensureing runner rotation, the normal operation of electrochemical reactor also should ensure that, it is clear that, the position of water outlet should be higher than that institute
State the bottom surface of anode, there is cathode position to enter water section less than water outlet, as long as in this way, anode and cathode all some be in
In sewage, it is ensured that the circulation of electric current.
Runner rotates, and drives anode rotation, anode is tubular, is rushed to microorganism on conductive material layer when can reduce rotation
Brush.Preferably, the height of the water outlet is less than the top surface of the anode.In this way, when sewage disposal, the first conductive material layer begins
It is to be partially in underwater eventually, is partially on the water surface, not only ensures normal sewage disposal, while in rotation process,
Microorganism on first conductive material layer can produce the water surface, and ingress of air is conducive to the growth of aerobic microbiological.
To reach preferable oxidation effect, it is preferred that the vertical range between the water outlet and runner top surface is runner
The 1/3~2/5 of vertical height.Preferably, the vertical range between the water outlet and anode top surface is anode vertical section diameter
1/3~2/5.It will be understood by those in the art that the bottom surface of runner vertical height, that is, runner is to the vertical range between top surface.
Preferably, first conductive material layer and the second conductive material layer are acf layer.Active carbon fiber
Dimension conducts electricity very well, and has huge specific surface area, can improve current efficiency, while being conducive to the enrichment life of microorganism
It is long.
Preferably, the both ends of the cathode are mutually fixed with the inner wall of shell respectively, described two runners and anode are arranged
On the cathode.Rotary support member need not can be additionally arranged around cathod rotary in anode membrane module, and structure is simpler
It is single, compact.
Preferably, the anode is made of first conductive material layer, is equipped with and uses between described two runners
In the supporting rack of support tubular anode.The supporting role that supporting rack has can prevent anode from being deformed in rotation process, influence
Wastewater treatment efficiency.
The for the benefit of collection and discharge of sludge, it is preferred that the bottom of the shell is equipped with sludge collecting chamber, and the sludge is received
The bottom of collection chamber offers sludge outlet.
Preferably, from top to bottom internal diameter is gradually reduced the sludge collecting chamber.Such structure can not only prevent from depositing mud,
The agitation in runner rotation process to sludge can also be avoided as possible.
The present invention also provides application of the aerobic drum-type microbial film electrochemical reactor in treated sewage.
The sewage contains antibiotic.The application includes being passed through sewage to water inlet pipe to carry out sewage disposal, sewage
In processing procedure, adjustment supply voltage is 2~8V, hydraulic detention time is 10~for 24 hours.
Compared with prior art, beneficial effects of the present invention include：The present invention does not need special aerator, passes through sun
The rotation of pole membrane module, to provide enough dissolved oxygens in sewage, be conducive to the growth of aerobic microbiological and to antibiotic and its
The degradation of metabolite improves the Operating ettectiveness of reactor, ensures wastewater treatment efficiency.
The present invention uses activated carbon fiber, can improve current efficiency, reduce energy consumption, save cost, save use
Ground can fast and efficiently handle organic wastewater containing antibiotics.
The present invention is to the high treating effect of the sewage containing antibiotic, and antibiotic removal rate is up to 95%.
Description of the drawings
Fig. 1 is the dimensional structure diagram of aerobic drum-type microbial film electrochemical reactor；
Fig. 2 is the vertical view of aerobic drum-type microbial film electrochemical reactor (without water inlet pipe and power supply)；
Fig. 3 is aerobic drum-type microbial film electrochemical reactor shown in FIG. 1 (without water inlet pipe and power supply) along A-A
The sectional view in direction；
Fig. 4 is aerobic drum-type microbial film electrochemical reactor shown in FIG. 1 (without water inlet pipe and power supply) along B-B
The sectional view in direction.
Specific implementation mode
With reference to specific embodiment, the present invention is furture elucidated.
Embodiment 1
Such as Fig. 1~Fig. 4, the aerobic drum-type microbial film electrochemical reactor of the present invention, including shell 1 are set in shell 1
Anode membrane module 2 and cathode membrane module 3, and the power supply 4 that is connected respectively with anode and cathode.
Cathode membrane module 3 includes cathode 31 and the second conductive material layer (not shown), and cathode 31 is stud, is Ti/
TiO2Material electrodes.The both ends of cathode 31 are respectively engaged with the inner wall of shell 1, and cathode 31 has towards 1 bottom notch of shell
Enter water section 33, the surface for entering water section 33 is covered with the second conductive material layer.On the one hand second conductive material layer plays conductive characteristic,
On the other hand for attached growth of microorganisms.
Anode membrane module 2 includes two runners 21, anode 22 and the supporting rack 23 being set in shell 1, and runner 21 is set in
On cathode 31, and the both ends of adjacent cathodes 31, runner 21 can be rotated by axis of cathode.Runner 21 includes being set in cathode
Shaft 211 on 31, are fixed on two ring baffles 212 of 211 both ends outer wall of shaft, and set on two ring baffles 212 it
Between several blades 213, all blades 213 are uniformly distributed along the circumferential direction of shaft 211.Supporting rack 23 is fixed on two runners 21
Between, supporting rack 23 is fixed with 212 phase of ring baffle of corresponding runner.Anode 22 is made of the first conductive material layer, is tubular,
It is supported and is fixed by supporting rack.On the one hand first conductive material layer plays conductive characteristic, on the other hand for attached growth of microorganisms.
In the present embodiment, the first conductive material layer and the second conductive material layer are made of activated carbon fiber.
Shell 1 is equipped with the sludge collecting chamber 11 of taper for accommodating sewage and inner body, the bottom of shell 1, and sludge is received
The bottom of collection chamber 11 offers sludge outlet 12.Shell 1 is additionally provided with water inlet pipe 13, and water inlet pipe 13 into shell 1 for being passed through dirt
Water, the water outlet of water inlet pipe 13 is towards blade.Water inlet pipe 13 has the valve 15 of regulation and control flow of inlet water.The side wall of shell 1 is also opened
Equipped with water outlet 14, the vertical range between water outlet and runner top surface is the 1/3 of runner vertical height, water outlet and anode top
Vertical range between face is the 1/3 of anode vertical section diameter, can reach preferable oxidation effect, improves wastewater treatment efficiency.
In use, the water that water outlet is good for emission treatment, for water inlet pipe for being passed through sewage into shell, cathode enters water
Section is immersed in sewage, and when being passed through sewage, water impact blade drives runner rotation, during rotation, air is brought into
It in sewage and stirs, to increase the dissolved oxygen in sewage.In addition, runner rotates, anode rotation is driven, the microorganism on anode can
The water surface is produced, ingress of air is conducive to the growth of aerobic microbiological.Sludge can be discharged from the sewage draining exit of housing bottom.
Embodiment 2
Using the aerobic drum-type microbial film electrochemical reactor treated sewage of the embodiment of the present invention 1.
1) inoculation of aerobic drum-type microbial film electrochemical reactor
Using the sludge in the aerobic tank of mud and sewage treatment plant, close reactor water outlet of the present invention, by nutrient solution and
Sludge volume is than 20:1 ratio is inoculated in reactor, and entire cathode and anode is made all to contact aerobic sludge, and 20h supplements are primary
Nutriment stands 5 days, then turns the/manual rotating wheels of min with 10-15, turns 10-20min, completes preliminary inoculation.It is sought per L
The basis of nutrient solution includes：0.54g glucose, 0.622g NaH2PO4·2H2O、0.416g Na2HPO4·12H2O、
0.122g NH4Cl、0.30g NaCl、0.42g NaHCO3, 0.223g KCl and 1.5mL micronutrient liquid.Per L micronutrient liquid
Including：17g MgSO4·7H2O、12g CaCl2、2.7g MnSO4·H2O、2.8g ZnSO4·7H2O、0.29g CoCl2·
6H2O and 1.6g FeSO4。
2) the energization culture of reactor
After the completion of reactor inoculation, continuum micromeehanics are changed to, water inlet flow velocity is about 15cm/s, and runner rotation is also turned on straight
Stream constant voltage source is cultivated, and voltage is slowly improved to 8.0V by 0.5V and kept constant, and entire incubation continues a 1-2 weeks left side
It is right.
3) reactor removes antibiotic
Under conditions of the direct voltage of voltage regulation of additional 2V-8V, current density reaches 0.15mA/cm in reactor2, by concentration
It is passed through in shell by water inlet pipe for the antibiotic waste water (substrate glucose) of 200 μ g/L, runner is driven under the action of flow
Rotation, while reducing waste water is flowed out by the water outlet of shell, hydraulic detention time 20h, and antibiotic removal rate is up to 95%.
Comparative example 1
Using the aerobic drum-type microbial film electrochemical reactor of the embodiment of the present invention 1, by additional pipeline to shell
It is passed through sewage in vivo, runner is made not rotate, other conditions reach 60%-73% with embodiment 2, antibiotic removal rate.
Claims (10)
1. a kind of aerobic drum-type microbial film electrochemical reactor, including shell (1), the anode being set in the shell (1)
Membrane module (2) and cathode membrane module (3), and the power supply that is connected respectively with anode (22) and cathode (31), which is characterized in that
The anode membrane module (2) includes being set to two runners (21) that in shell (1) and can be rotated, and be set to two
The anode (22) of tubular between runner (21), the runner (21) is carried along the circumferentially distributed blade of runner (213), described
Anode (22) have for attached growth of microorganisms the first conductive material layer；
The cathode membrane module (3) includes that cathode (31) in shell (1) is arranged, and for the of attached growth of microorganisms
Two conductive material layers；
The shell (1) is equipped with water inlet pipe (13) of the water outlet towards blade (213), and the shell (1) is further opened with out
The mouth of a river (14), the height of the water outlet (14) are less than the top surface of the runner (21), are higher than the bottom surface of the runner (21)；Institute
The height for stating water outlet (14) is higher than the bottom surface of the anode (22), and there is the cathode (31) position to be less than water outlet (14)
Enter water section (33), the surface for entering water section (33) is covered with second conductive material layer.
2. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that the water outlet
(14) height is less than the top surface of the anode (22).
3. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that described first
Conductive material layer and the second conductive material layer are acf layer.
4. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that the cathode
(31) inner wall of the both ends respectively with shell (1) is mutually fixed, and described two runners (21) and anode (22) are set in described the moon
On pole (31).
5. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that the water outlet
(14) vertical range between runner (21) top surface is the 1/3~2/5 of runner vertical height.
6. aerobic drum-type microbial film electrochemical reactor according to claim 5, which is characterized in that the water outlet
(14) vertical range between anode (22) top surface is the 1/3~2/5 of anode vertical section diameter.
7. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that the anode
(22) it is made of first conductive material layer, is equipped between described two runners (21) and is used to support tubular anode (22)
Supporting rack (23).
8. aerobic drum-type microbial film electrochemical reactor according to claim 1, which is characterized in that the shell
(1) bottom is equipped with sludge collecting chamber (11), and the bottom of the sludge collecting chamber (11) offers sludge outlet (12).
9. according to the aerobic drum-type microbial film electrochemical reactor of Claims 1 to 5 any one of them in treated sewage
Application.
10. application according to claim 9, which is characterized in that the sewage contains antibiotic, sewage disposal process
In, adjustment supply voltage is 2~8V, hydraulic detention time is 10~for 24 hours.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162195A (en) * | 1974-04-04 | 1979-07-24 | Aktiebolaget Kalle-Regulatorer | Biological testing device and method of measuring toxicity of sewage |
| CN1403390A (en) * | 2002-09-26 | 2003-03-19 | 华南理工大学 | Combined sewage treating process and apparatus |
| CN201296705Y (en) * | 2008-10-07 | 2009-08-26 | 浙江大学 | Electrochemical autotrophy and denitrification integration reactor for removing the nitrate nitrogen in water |
| CN103073107A (en) * | 2013-02-26 | 2013-05-01 | 东南大学 | Drop type waterwheel oxygenation biological contact oxidation pond |
| CN103073155A (en) * | 2013-01-23 | 2013-05-01 | 浙江大学 | Series electrode-biomembrane reactor |
| CN203187455U (en) * | 2013-01-28 | 2013-09-11 | 湖南富利来环保科技工程有限公司 | Power-free biodynamic disc |
| CN203938525U (en) * | 2014-06-20 | 2014-11-12 | 湖北金润德环保技术有限公司 | A kind of electro-biometric film coupled water treatment unit |
| CN204185296U (en) * | 2014-10-29 | 2015-03-04 | 湖南大学 | A kind of rotating electrode biofilm reactor |
-
2016
- 2016-02-04 CN CN201610080872.2A patent/CN105712469B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162195A (en) * | 1974-04-04 | 1979-07-24 | Aktiebolaget Kalle-Regulatorer | Biological testing device and method of measuring toxicity of sewage |
| CN1403390A (en) * | 2002-09-26 | 2003-03-19 | 华南理工大学 | Combined sewage treating process and apparatus |
| CN201296705Y (en) * | 2008-10-07 | 2009-08-26 | 浙江大学 | Electrochemical autotrophy and denitrification integration reactor for removing the nitrate nitrogen in water |
| CN103073155A (en) * | 2013-01-23 | 2013-05-01 | 浙江大学 | Series electrode-biomembrane reactor |
| CN203187455U (en) * | 2013-01-28 | 2013-09-11 | 湖南富利来环保科技工程有限公司 | Power-free biodynamic disc |
| CN103073107A (en) * | 2013-02-26 | 2013-05-01 | 东南大学 | Drop type waterwheel oxygenation biological contact oxidation pond |
| CN203938525U (en) * | 2014-06-20 | 2014-11-12 | 湖北金润德环保技术有限公司 | A kind of electro-biometric film coupled water treatment unit |
| CN204185296U (en) * | 2014-10-29 | 2015-03-04 | 湖南大学 | A kind of rotating electrode biofilm reactor |
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Application publication date: 20160629 Assignee: CCDI (SUZHOU) EXPLORATION & DESIGN CONSULTANT Co.,Ltd. Assignor: SOUTHEAST University Contract record no.: X2020980010025 Denomination of invention: Aerobic rotating tubular microbial membrane electrochemical reactor and its application Granted publication date: 20180717 License type: Common License Record date: 20201229 |
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