CN107010728B - Gradual change type completely autotrophic nitrogen removal system and treatment method thereof - Google Patents
Gradual change type completely autotrophic nitrogen removal system and treatment method thereof Download PDFInfo
- Publication number
- CN107010728B CN107010728B CN201710412203.5A CN201710412203A CN107010728B CN 107010728 B CN107010728 B CN 107010728B CN 201710412203 A CN201710412203 A CN 201710412203A CN 107010728 B CN107010728 B CN 107010728B
- Authority
- CN
- China
- Prior art keywords
- porous
- plate
- layer
- anode
- cathode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a gradual change type completely autotrophic nitrogen removal system and a treatment method thereof. The bottom layer of the gradual completely autotrophic nitrogen removal system is a supporting layer, an electric biodegradation layer is arranged on the supporting layer, main electrode anode plates and main electrode cathode plates are alternately arranged in the electric biodegradation layer from bottom to top at unequal intervals, and three-dimensional particle electrodes for high-efficiency catalysis are filled between the electrode plates. According to the principle that the anode generates oxygen and the cathode generates hydrogen, the distance between the anode and the cathode is arranged in a decreasing mode, the gradual change of the degradation strength of the electric biological degradation and the gradual change of the concentration of dissolved oxygen are realized, and different aerobic-anaerobic areas are formed in the system. The processing method comprises the following steps: (1) normal-temperature low-ammonia nitrogen municipal sewage in the high-level water tank enters a system; (2) flowing through the electric biological degradation layer with the cathode and the anode arranged at unequal intervals; (3) and (6) discharging water. The invention realizes a nitrosation-anaerobic ammonia oxidation-denitrification symbiotic strain system in a gradual completely autotrophic nitrogen removal system, and the effluent quality is stable.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a gradual change type completely autotrophic nitrogen removal system and a treatment method thereof.
Background
The increasingly serious eutrophication of water body makes the removal of nitrogen in sewage more and more emphasized, the denitrification process in the traditional nitrification and denitrification biological nitrogen removal process needs to consume a large amount of carbon source, and the content of organic carbon in actual urban domestic sewage is often lower and is not enough to maintain the denitrification process, so that the content of nitrogen in the effluent is higher, and the increasingly strict effluent requirement can not be met. The completely autotrophic nitrogen removal process is developed on the basis of anaerobic ammonia oxidation reaction, the nitrosation reaction and the anaerobic ammonia oxidation reaction are combined in the same system, but the process has the problems of limiting the development of the process, and mainly comprises long starting time, low removal load (the maximum total nitrogen removal rate is only 89 percent, complete nitrogen removal cannot be realized), difficult accurate control of dissolved oxygen, difficult long-term stable operation and the like. At present, related researches mainly focus on high-ammonia high-temperature (above 25 ℃) or high-ammonia nitrogen (>400 mg.L < -1 >) wastewater, such as sludge digestion liquid and percolate, and the treatment of municipal domestic sewage with normal temperature and low ammonia nitrogen concentration is a great problem of the current water treatment technology.
The electric biological coupling method couples electrochemical reaction and microbial reaction in the same system, and gives play to the advantages of each other, thereby realizing complementation and enhancing treatment effect, and further achieving the purposes of improving sewage treatment efficiency, reducing equipment investment and the like. The electric field has an enhancing effect on the wastewater treatment performance of microorganisms, and many research results show that the biochemical reaction capability of organisms can be stimulated by directly or indirectly utilizing the external electric field, so that the activity of the organisms is improved. When an external electric field exists, electrons can be transferred from the working electrode to an organism attached to the working electrode and participate in the electron transfer process of energy metabolism in the organism to a certain extent, so that the metabolism of the organism is stimulated or changed.
The completely autotrophic nitrogen removal is mainly realized by taking a biomembrane or granular sludge as a nitrogen removal model and a carrier, and specifically, ammonia nitrogen is converted into N by a shortcut nitrification way by utilizing the synergistic effect of two types of functional bacteria (ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria) 2 The biological reaction process of (1). The gradual change type completely autotrophic nitrogen removal system is constructed by alternately arranging anode cathodes from bottom to top along the process according to the production of hydrogen by an oxygen cathode of an electrolytic anode, and filling a particle electrode with high-efficiency catalysis in the anode cathodes. By configuring an aerobic-anaerobic area in the system, the favorable habitat range of functional bacteria is enlarged, and a nitrosation-anaerobic ammoxidation-denitrification symbiotic strain system is synchronously realized. The invention aims to solve the technical problem of treatment of urban domestic sewage with low ammonia nitrogen concentration at normal temperature, and provides a gradual completely autotrophic nitrogen removal system and a treatment method thereof so as to solve the problems of low removal load and difficult accurate control of dissolved oxygen in a completely autotrophic nitrogen removal process.
Disclosure of Invention
The invention aims to solve the problem of treatment of urban domestic sewage with low ammonia nitrogen concentration at normal temperature, and provides a gradual change type completely autotrophic nitrogen removal system and a treatment method thereof. In order to solve the problems, the system mainly comprises a main system, a power supply system and a water supply system. The core of the main system is a cylindrical organic glass container with the diameter of 150mm and the height of 1800 mm. Comprises a water inlet, a back washing water inlet, a water outlet, a main electrode, a permanent particle electrode and a system shell. The bottom layer of the main system is a supporting layer with the height of 200mm, and an electric biodegradation layer is arranged on the main system and consists of particle electrodes and non-equidistant positive and negative electrode plates with the height of 1200 mm. The porous titanium plate is used as a main electrode anode, the stainless steel pore plate is used as a main electrode cathode, the two electrode plates are arranged in a cross mode, and the electric biodegradation layer sequentially comprises an anode plate, a particle electrode layer, a cathode plate, a particle electrode layer, an anode plate, a particle electrode layer, a cathode plate and a particle electrode layer from bottom to top. The distances between the three pairs of electrode plates are respectively as follows from bottom to top: 300mm, 200mm, 100mm, and high-efficiency durable particle electrodes with particle diameter of 3-5mm are filled between the two electrode plates. Wherein the distance from the uppermost cathode plate of the system to the surface layer of the particle electrode is 100 mm. The mounting mode of the main electrode adopts flange fixation, the size diameter of the negative plate and the positive plate is 180mm, and the inner aperture is 3 mm. A power supply system: the anode and the cathode of the main electrode are respectively connected with the anode and the cathode of the power supply through anode wires and cathode wires. A water supply system: the normal-temperature low-ammonia nitrogen sewage in the high-level water tank is pressurized to the bottom of the system by a water inlet pump, enters the bearing layer, is treated by the electric biodegradation layer and flows out of the water outlet pipe. The system operation process comprises the following steps: normal-temperature low-ammonia nitrogen urban sewage in the high-level water tank (12) flows into the water inlet pump (10) through the water inlet pipe (11), the sewage is pressed into the system and enters the bearing layer (7), then flows through the electrical biodegradation layer with the cathodes and the anodes arranged at unequal intervals, and after the electrical biodegradation layer is effectively degraded, treated water flows out through the water outlet pipe (13). A backwashing process: backwash water enters the bottom of the system through a backwash water inlet pipe (8), flows through a supporting layer (7) and enters an electrical biodegradation layer with cathodes and anodes arranged at unequal intervals, and the backwash water flows out through a water outlet pipe (13).
The construction of the gradual change type completely autotrophic nitrogen removal system is that hydrogen is produced by the cathode according to oxygen produced by the electrolysis anode, so that different aerobic-anaerobic zone environments are formed in the system. In the aerobic zoneAmmonia oxidizing bacteria utilize oxygen generated by the anode to oxidize NH in the urban domestic sewage with normal temperature and low ammonia nitrogen 4 + Oxidation to NO 2 - By adjusting the current density, the dissolved oxygen concentration can be easily controlled to be less than 1mg/L, so as to expand the mass accumulation of functional bacteria (ammonia oxidizing bacteria) and inhibit the growth of nitrite oxidizing bacteria, thereby enabling NO to be generated 2 - Are difficult to further oxidize to NO 3 - Thereby controlling the reaction to NO 2 - And (5) stage. In the stage, the dissolved oxygen concentration is successfully controlled below 1mg/L by pure oxygen aeration of the anode plate, and the problem that the dissolved oxygen concentration is difficult to control below 1mg/L by using a traditional aeration device (an air compressor) is solved. In the anaerobic area, anaerobic ammonia oxidizing bacteria convert NO 2 - Conversion to N 2 However, another bacterium (a bacterium which completely oxidizes ammonia) present in the autotrophic anammox system can convert NH 4 + Direct oxidation to NO 3 - So that the system has only 89% NO 2 - Is reduced to N 2 In the invention, because the system is designed to alternately place the anode and the cathode, the cathode continuously generates reductive H in the operation process of the system 2 That 11% of NO can be added 3 - Reduction to NO 2 - This part of NO 2 - Further converted into N by nitrite bacteria 2 Thereby realizing 100 percent of denitrification effect and breaking through the limitation that the total nitrogen removal rate of the traditional completely autotrophic denitrification can only reach 89 percent. A nitrosation-anaerobic ammonia oxidation-denitrification symbiotic strain system is realized in a gradual change type completely autotrophic nitrogen removal system, so that the normal-temperature low-ammonia nitrogen urban domestic sewage is effectively degraded.
In the gradual change type completely autotrophic nitrogen removal system, anode and cathode are alternately arranged from bottom to top along the process, high-efficiency catalytic particle electrodes are filled in the anode and cathode, and the metabolism capability of various functional floras, particularly anaerobic ammonia oxidizing bacteria, is improved through an external electric field. Oxygen is generated near the anode, so that gradual pure oxygen aeration is realized, and the gas-liquid material transfer rate is improved, thereby increasing the reaction rate. Because the system type is upward flow, the pollutant concentration is smaller from bottom to top, and the distance between the cathode and the anode is continuously decreased progressively, on one hand, the gradual change of the electric biodegradation strength is realized, on the other hand, the gradual change of the dissolved oxygen concentration is realized, and the pollutant degradation capability is gradually enhanced from bottom to top. The invention is suitable for the treatment of normal-temperature low-ammonia nitrogen urban domestic sewage, under the action of an electric field and microorganisms, anode cathodes are alternately arranged from bottom to top along the process according to the production of hydrogen from an oxygen cathode of an electrolytic anode, and high-efficiency catalytic particle electrodes are filled in the anode cathodes, so that the problems of low removal load (the maximum total nitrogen removal rate is only 89 percent, complete denitrification cannot be realized) and difficult and accurate control of dissolved oxygen (the concentration of the dissolved oxygen is difficult to control to be 1mg/L by using an air compressor) in the completely autotrophic denitrification process can be effectively solved.
Drawings
FIG. 1 is a schematic view of a gradual completely autotrophic nitrogen removal system and a treatment method thereof, which will be further described with reference to the drawings.
In fig. 1: (1) the device comprises a power supply (2), an anode wire (3), a cathode wire (4), a particle electrode (5), a porous anode plate (6), a porous cathode plate (7), a supporting layer (8), a back flush water inlet pipe (9), a valve (10), a water inlet pump (11), a water inlet pipe (12) and a water outlet pipe of a high-level water tank (13).
Detailed Description
The first embodiment is as follows:
the attached drawing is a specific embodiment of the invention, the embodiment comprises that the normal temperature low ammonia nitrogen city domestic sewage in a high-level water tank (12) enters a system through a water inlet pipe (11) by a water inlet pump (10), flows into a supporting layer (7), flows upwards through an electrical biodegradation layer with cathodes and anodes arranged at unequal intervals, simultaneously, the anode and the cathode of a power supply are respectively connected with a porous anode plate (5) and a porous cathode plate (6) by an anode wire (2) and a cathode wire (3), the anode generates oxygen, the cathode generates hydrogen, the metabolism capability of each functional flora, particularly anaerobic ammonium oxidation bacteria, can be improved by an external electric field, the favorable habitat range of the functional bacteria is expanded according to the distribution of aerobic-anaerobic areas in the system, the gradual change type pure oxygen aeration is realized, the gas-liquid material transfer rate is improved, and the nitrosation-anaerobic ammonium oxidation-denitrification symbiotic strain system is synchronously realized, effectively converting ammonia nitrogen into N in the electric biodegradation layer 2 A position ofThe treated effluent water flows out of the system through a water outlet pipe (13).
Example two:
normal-temperature low-ammonia nitrogen urban domestic sewage in the high-level water tank (12) enters the system through the water inlet pipe (11) and the water inlet pump (10), flows into the bearing layer (7), flows upwards through the electrical biodegradation layer with the cathodes and the anodes arranged at unequal intervals, meanwhile, the anode and the cathode of the power supply are respectively connected with a porous anode plate (5) and a porous cathode plate (6) through an anode wire (2) and a cathode wire (3), the anode generates oxygen, the cathode generates hydrogen, the metabolism capability of each functional flora, particularly anaerobic ammonium oxidation bacteria, can be improved by an external electric field, according to the distribution of aerobic-anaerobic areas in the system, the beneficial habitat range of functional bacteria is expanded, gradual pure oxygen aeration is realized, the gas-liquid material transfer rate is improved, a nitrosation-anaerobic ammonia oxidation-denitrification symbiotic strain system is synchronously realized, and ammonia nitrogen is effectively converted into N in the electro-biodegradation layer. 2 And the treated effluent flows out of the system through a water outlet pipe (13). When the water head loss reaches a preset water head loss, the system is back flushed, and the water after back flushing flows out of the system through a water outlet pipe (13).
Claims (7)
1. A treatment method based on a gradual change type completely autotrophic nitrogen removal system is characterized in that: the system consists of a water inlet, a back flush water inlet, a water outlet, a porous anode plate, a porous cathode plate, a durable particle electrode and a system shell; the bottom layer is a supporting layer, an electric biodegradation layer containing electrodes arranged at unequal intervals is arranged on the supporting layer, the electric biodegradation layer consists of particle electrodes and porous negative and positive plates arranged at unequal intervals, and the electric biodegradation layer sequentially comprises a porous positive plate, a particle electrode layer, a porous negative plate, a particle electrode layer, a porous positive plate, a particle electrode layer, a porous negative plate and a particle electrode layer from bottom to top; the porous cathode plate and the porous anode plate are arranged in a crossed manner, the efficient durable particle electrodes are filled between the two electrode plates, and the distances between the electrode plates are from bottom to top: 300mm, 200mm, 100 mm; the positive and negative poles of the direct current power supply are respectively connected with the porous anode plate (5) and the porous cathode plate (6); the normal-temperature low-ammonia nitrogen urban domestic sewage in the high-level water tank (12) flows into the water inlet pump (10) through the water inlet pipe (11), is pressed into the system and enters the supporting layer (7), then flows through the porous anode plate (5), the porous cathode plate (6) and the particle electrode layer (4) which are arranged at unequal intervals, and is effectively degraded by the electric biodegradation layer, and then the treated water flows out through the water outlet pipe (13); a backwashing process: backwash water enters the bottom of the system through a backwash water inlet pipe (8), flows through a supporting layer (7), enters a porous cathode plate (6), a porous anode plate (5) and a particle electrode layer (4) which are arranged at unequal intervals, and flows out through a water outlet pipe (13).
2. The process of claim 1, further comprising: the system is a cylindrical plexiglas container with a diameter of 150mm and a height of 1800 mm.
3. The process of claim 1, wherein: a porous titanium plate is used as a porous anode plate, and a stainless steel pore plate is used as a porous cathode plate.
4. The process of claim 3, wherein: the diameters of the porous anode plate and the porous cathode plate are 180mm, the inner pore diameter is 3mm, and the installation mode adopts flange fixation.
5. The process of claim 1, wherein: the system is constructed by generating oxygen through the electrolytic anode and hydrogen through the cathode, so that aerobic-anaerobic different area environments are formed in the system, and the pure oxygen aeration of the porous anode plate is realized by adjusting the current density, thereby overcoming the problem that the dissolved oxygen concentration is difficult to be controlled below 1mg/L by utilizing the traditional aeration device.
6. The process of claim 1, wherein: by using reducing gas H generated by porous cathode plate 2 NO produced by oxidizing ammonia-oxidizing bacteria 3 - Reduction to N 2 。
7. The process of claim 1, wherein: because the anode and the cathode are alternately arranged at unequal intervals from bottom to top along the process, on one hand, the gradual change of the electric biodegradation strength is realized, and on the other hand, the gradual change of the dissolved oxygen concentration is realized, so that the pollutant degradation capability is gradually enhanced from bottom to top along the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412203.5A CN107010728B (en) | 2017-06-05 | 2017-06-05 | Gradual change type completely autotrophic nitrogen removal system and treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412203.5A CN107010728B (en) | 2017-06-05 | 2017-06-05 | Gradual change type completely autotrophic nitrogen removal system and treatment method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107010728A CN107010728A (en) | 2017-08-04 |
| CN107010728B true CN107010728B (en) | 2022-08-23 |
Family
ID=59452201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412203.5A Active CN107010728B (en) | 2017-06-05 | 2017-06-05 | Gradual change type completely autotrophic nitrogen removal system and treatment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107010728B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500399B (en) * | 2017-09-19 | 2018-09-28 | 华东师范大学 | A kind of three-dimensional electric biology sewage treatment equipment of three-dimensional electrochemical coupling |
| CN108862578A (en) * | 2017-12-18 | 2018-11-23 | 中山市和智电子科技有限公司 | A kind of sewage disposal system and electrolytic sewage technique |
| CN108862577A (en) * | 2017-12-18 | 2018-11-23 | 中山市和智电子科技有限公司 | A kind for the treatment of process of ammonia-nitrogen sewage |
| CN108751640B (en) * | 2018-07-31 | 2023-08-18 | 浙江工商大学 | In-situ sludge synchronous decrement stabilization treatment system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077801A (en) * | 2007-05-14 | 2007-11-28 | 广州有色金属研究院 | Fluid bed three-dimensional electrode reactor for treating organic waste water |
| CN101423266A (en) * | 2008-11-18 | 2009-05-06 | 南京赛佳环保科技有限责任公司 | Wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor |
| JP2012182105A (en) * | 2011-02-28 | 2012-09-20 | Kazuhiro Hayashi | Power generation electrode which causes electrochemical reaction with electrode potential difference to generate static electricity for power generation, and fuel cell electrode |
| CN104118931A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A novel electric-biology coupled water purification system and a water purification method |
| CN205662370U (en) * | 2015-11-20 | 2016-10-26 | 中国水利水电科学研究院 | But electric installation is produced to aeration and layering measuring constructed wetland |
| CN205892821U (en) * | 2016-07-26 | 2017-01-18 | 南京大善环境科技有限公司 | A electrochemical reaction pool for polar plate interval that sewage treatment is adjustable |
| CN106430605A (en) * | 2016-11-24 | 2017-02-22 | 河海大学 | Artificial wetland device for deep denitrification of tail water in sewage treatment plant and application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014193764A1 (en) * | 2013-05-27 | 2014-12-04 | Luisa Kling Miller, Trustee Of The Miller Family Trust And Luisa King Miller Survivor's Trust | Process and system for removal of naphthenic acid from an aqueous solution |
-
2017
- 2017-06-05 CN CN201710412203.5A patent/CN107010728B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077801A (en) * | 2007-05-14 | 2007-11-28 | 广州有色金属研究院 | Fluid bed three-dimensional electrode reactor for treating organic waste water |
| CN101423266A (en) * | 2008-11-18 | 2009-05-06 | 南京赛佳环保科技有限责任公司 | Wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor |
| JP2012182105A (en) * | 2011-02-28 | 2012-09-20 | Kazuhiro Hayashi | Power generation electrode which causes electrochemical reaction with electrode potential difference to generate static electricity for power generation, and fuel cell electrode |
| CN104118931A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A novel electric-biology coupled water purification system and a water purification method |
| CN205662370U (en) * | 2015-11-20 | 2016-10-26 | 中国水利水电科学研究院 | But electric installation is produced to aeration and layering measuring constructed wetland |
| CN205892821U (en) * | 2016-07-26 | 2017-01-18 | 南京大善环境科技有限公司 | A electrochemical reaction pool for polar plate interval that sewage treatment is adjustable |
| CN106430605A (en) * | 2016-11-24 | 2017-02-22 | 河海大学 | Artificial wetland device for deep denitrification of tail water in sewage treatment plant and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107010728A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6171030B2 (en) | Method for treating acid gas | |
| CN100491274C (en) | Method of nitrosation electrochemical back nitrosation full autotrophic deamination and denitrification and its reactor | |
| CN101857309B (en) | Electrochemical biological combined denitrification reactor | |
| CN102491515B (en) | Three-dimensional electrode bio-membrane system used for processing high-ammonium-nitrogen wastewater with low carbon-nitrogen ratio | |
| CN107010728B (en) | Gradual change type completely autotrophic nitrogen removal system and treatment method thereof | |
| CN110156146B (en) | Biological membrane electrochemical reactor for simultaneously removing nitric acid nitrogen and trace organic matters in water | |
| Tang et al. | Simultaneous removal of nitrate and sulfate using an up-flow three-dimensional biofilm electrode reactor: Performance and microbial response | |
| CN203938525U (en) | A kind of electro-biometric film coupled water treatment unit | |
| CN113149343B (en) | Electrochemical nitrogen and phosphorus removal device and method | |
| CN104787977A (en) | Continuous flow integrated electrode bio-membrane reactor and nitrate removal technology | |
| US10427962B2 (en) | Method for treating a black and odorous water body with a bionic process | |
| CN111320259B (en) | Micro-aerobic granular sludge and bioelectrode coupling coking wastewater enhanced treatment method and treatment device | |
| CN104860397A (en) | Electrochemical-biological fluidized bed reactor and wastewater treatment method | |
| CN104628133A (en) | Overflow type electrochemical biological membrane reactor | |
| CN107010729B (en) | Gas-water anisotropic flow gradual-change type completely autotrophic nitrogen removal system and treatment method thereof | |
| CN104628134A (en) | Up-flow electrochemical biofilm reactor | |
| CN201722209U (en) | Electrochemical biological combined denitrification reactor | |
| CN206970308U (en) | A kind of device of gradual change type whole process autotrophic denitrification | |
| CN204643965U (en) | Overflow type electrochemica biological membrane reactor | |
| CN204737787U (en) | Electrochemistry - biological fluidized bed reactor | |
| CN209554892U (en) | One kind being used for electroplating wastewater denitrification denitrogenation reactor | |
| CN207031079U (en) | A kind of air water anisotropic flow gradual change type whole process autotrophic denitrification device | |
| CN2799543Y (en) | Electrode biomembrane-SBR denitrification and phosphorus-removing equipment | |
| CN218988980U (en) | Three-dimensional electrode biomembrane device capable of efficiently removing nitrate nitrogen under low carbon-nitrogen ratio | |
| CN1654366B (en) | Electrode biomembrane-SBR denitrification and dephosphorization equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |