CN111440705A - External dynamic membrane anaerobic fermentation system and method - Google Patents
External dynamic membrane anaerobic fermentation system and method Download PDFInfo
- Publication number
- CN111440705A CN111440705A CN202010255832.3A CN202010255832A CN111440705A CN 111440705 A CN111440705 A CN 111440705A CN 202010255832 A CN202010255832 A CN 202010255832A CN 111440705 A CN111440705 A CN 111440705A
- Authority
- CN
- China
- Prior art keywords
- anaerobic fermentation
- dynamic membrane
- external dynamic
- gas
- backwashing
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/10—Separation or concentration of fermentation products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/18—Use of gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an external dynamic membrane anaerobic fermentation system and a method, the system comprises an external dynamic membrane element, an anaerobic fermentation reactor, a substrate tank and a gas metering backwashing discharge unit, wherein the external dynamic membrane element is connected with a pipeline of the anaerobic fermentation reactor through a circulating reflux pump, the discharge pump is connected with a pipeline at the bottom of the external dynamic membrane element through a pressure gauge, the substrate tank is connected with a pipeline at the bottom of the anaerobic fermentation reactor through a feed pump, one end of an air outlet of the anaerobic fermentation reactor is connected with a pipeline of a wet gas flowmeter through a water seal bottle through a one-way valve, and the other end of the air outlet of the anaerobic fermentation reactor is connected with a pipeline at the top end of the external dynamic membrane element through a gas backwashing buffer device and a circulating backwashing air pump.
Description
Technical Field
The invention belongs to the technical field of solid waste treatment, and particularly relates to an external dynamic membrane anaerobic fermentation system and method.
Background
Anaerobic fermentation refers to a process of hydrolyzing, acidifying, acetifying and generating methane and converting the organic biomass into methane under anaerobic conditions, and is an effective way for treating solid waste pollution and relieving energy shortage. Anaerobic membrane bioreactors (AnMBR) are capable of regulating Sludge Retention Time (SRT) and Hydraulic Retention Time (HRT) separately, and have many advantages in anaerobic fermentation processes. However, due to the problems of high membrane material cost, membrane pollution, high energy consumption and the like, the application of the AnMBR in an anaerobic fermentation system is limited.
Dynamic Membrane Bioreactors (DMBR) are used in many applications in the field of sewage treatment, but are rarely used in the field of solid waste. The DMBR adopts nylon or stainless steel mesh as a supporting material, forms a biological membrane by means of microbial extracellular polymers and the like to perform solid-liquid separation, increases the retention time of solid waste in an anaerobic fermentation system, further enhances the energy conversion efficiency of organic waste, and has wide application prospect in the field of anaerobic fermentation. However, the internal and external DMBR, which is generally used in the field of water treatment, is difficult to be applied to an anaerobic fermentation system. Therefore, it is necessary to develop a novel dynamic membrane reactor which is suitable for anaerobic fermentation solid-liquid separation and can continuously and stably operate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an external dynamic membrane anaerobic fermentation system and method, which can continuously and stably realize the effective separation of biogas slurry and biogas residues; the device has the gravity scouring function, reduces the membrane cleaning frequency and has lower energy consumption; in addition, the separation membrane material has low cost and can be recycled for multiple times.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an external dynamic membrane anaerobic fermentation system, includes external dynamic membrane element, anaerobic fermentation reactor, matrix jar and gas measurement backwash ejection of compact unit, wherein, the export of matrix jar is passed through the charge pump and is connected with anaerobic fermentation reactor bottom import pipeline, the delivery port of anaerobic fermentation reactor is passed through circulating reflux pump and is connected with the bottom import pipeline of external dynamic membrane element, and the gas outlet of anaerobic fermentation reactor is divided into two the tunnel, and one of the tunnel is connected with wet-type gas flowmeter pipeline, and another tunnel links to each other with external dynamic membrane element top pipeline through circulating backwash membrane element air pump, sends into the backwash gas to external dynamic membrane element.
Furthermore, the external dynamic membrane element mainly comprises a dynamic membrane which is in a barrel shape, the membrane material is a stainless steel mesh, and the aperture is 50-150 μm.
Furthermore, a return pipeline is arranged between the top of the external dynamic membrane element and the anaerobic fermentation reactor.
Furthermore, one path of the gas outlet of the anaerobic fermentation reactor is connected with a wet gas flowmeter pipeline through a check valve and a water seal bottle, and the other path of the gas outlet of the anaerobic fermentation reactor is connected with a pipeline at the top end of the external dynamic membrane element through a gas backwashing buffer device and a circulating backwashing gas pump.
Further, the gas backwash buffer device is a sealed conical flask.
Furthermore, the bottom outlet of the external dynamic membrane element is connected with a discharge barrel pipeline through a discharge pump, a pressure gauge is arranged on the connecting pipeline, the range of the pressure gauge is-50 kPa to 0kPa, and when the monitoring value is lower than-40 kPa, a circulating backwashing air pump is started for backwashing.
Further, the anaerobic fermentation reactor is mixed and stirred by a stirrer, wherein the fermentation reaction type is medium-temperature fermentation at 35-39 ℃ or high-temperature fermentation at 55-60 ℃.
The invention also provides an anaerobic fermentation method using the external dynamic membrane anaerobic fermentation system, organic waste firstly enters an anaerobic fermentation reactor from a substrate tank, after mixed fermentation in the anaerobic fermentation reactor, a mud-water mixture enters an external dynamic membrane element for solid-liquid separation, and the filtered discharge is collected through a discharge barrel; gas generated in the anaerobic fermentation reactor passes through a one-way valve and a water-sealed bottle, and then the gas yield is measured by a wet gas flowmeter; the gas backwashing buffer device acquires pressure data of a pressure gauge in real time, and when the numerical value of the pressure gauge is lower than-40 kPa, a circulating backwashing air pump is started to carry out gas backwashing; and when the air backwashing is finished, stopping the circulating backwashing air pump and recovering to normal operation.
Furthermore, the total solid content of sludge entering the external dynamic membrane element is 10-100 g/L, and the sludge return rate is 5-20L/h.
Further, the gas backwashing strength is 5-20L/min, and the gas backwashing time is 2-10 min.
Compared with the prior art, the invention has the beneficial effects that:
(1) can continuously and stably realize the effective separation of biogas slurry and biogas residues.
(2) The gravity scouring effect reduces the membrane cleaning frequency and the energy consumption is lower.
(3) The separation membrane material has low cost and can be recycled for multiple times.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention; in the figure: the solid line represents the direction of movement of the solid material; the dotted line represents the direction of airflow movement.
The device comprises an external dynamic membrane element 1, an anaerobic fermentation reactor 2, a substrate tank 3, a gas metering backwashing discharging unit 4, a dynamic membrane 11, a circulating reflux pump 12, a discharging barrel 13, a discharging pump 14, a pressure gauge 15, a stirrer 21, a feeding pump 31, a one-way valve 41, a water seal bottle 42, a wet gas flowmeter 43, a gas backwashing buffer device 44 and a circulating backwashing gas pump 45.
FIG. 2 is a schematic diagram of a gas backwash buffer.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in figure 1, the external dynamic membrane anaerobic fermentation system comprises an external dynamic membrane element 1, an anaerobic fermentation reactor 2, a substrate tank 3 and a gas metering backwashing discharging unit 4.
The external dynamic membrane element 1 mainly comprises a dynamic membrane 11, wherein the dynamic membrane 11 is in a barrel shape, and the membrane material is a stainless steel mesh; the aperture of the membrane material is 50 μm, and the membrane area is 0.047m2The membrane flux was 2.55L/m2The turbidity of the effluent is 50-300 NTU. The bottom outlet of the external dynamic membrane element 1 is connected with a discharge barrel 13 through a pipeline through a discharge pump 14 and is arranged onA pressure gauge 15 is arranged on the connecting pipeline, and the range of the pressure gauge 15 is-50 kPa to 0 kPa.
The anaerobic fermentation reactor 2 is mixed and stirred by a stirrer 21, and the fermentation reaction type is medium-temperature fermentation at 35-39 ℃ or high-temperature fermentation at 55-60 ℃.
An outlet of the substrate tank 3 is connected with an inlet pipeline at the bottom of the anaerobic fermentation reactor 2 through a feeding pump 31, a water outlet of the anaerobic fermentation reactor 2 is connected with an inlet pipeline at the bottom of the external dynamic membrane element 1 through a circulating reflux pump 12, and a reflux pipeline is arranged between the top of the external dynamic membrane element 1 and the anaerobic fermentation reactor 2. The gas outlet of the anaerobic fermentation reactor 2 is divided into two paths, one path is connected with a wet gas flowmeter 43 through a check valve 41 and a water seal bottle 42, and the other path is connected with the top pipeline of the external dynamic membrane element 1 through a gas backwashing buffer device 44 and a circulating backwashing air pump 45. Referring to fig. 2, the gas backwash buffer 44 is a sealed conical flask.
The working process of the invention is as follows:
organic waste firstly enters an anaerobic fermentation reactor 2 from a substrate tank 3, after mixed fermentation in the anaerobic fermentation reactor 2, mud-water mixture enters an external dynamic membrane element 1 for solid-liquid separation, the total mud inlet solid content of the external dynamic membrane element 1 is 45.5 g/L, the mud reflux rate is 10L/h, the filtered discharge material is collected through a discharge barrel 13, gas generated in the anaerobic fermentation reactor 2 passes through a one-way valve 41 and a water seal bottle 42, the gas yield is measured through a wet gas flowmeter 43, a gas backwashing buffer device 44 obtains pressure data of a pressure gauge 15 in real time, when the value of the pressure gauge is lower than-40 kPa, a circulating backwashing air pump 45 is started for gas backwashing, the backwashing strength is 10L/min, the gas backwashing time is 10min, and when the gas backwashing is finished, the circulating backwashing air pump 45 is stopped, and normal operation is recovered.
Claims (10)
1. The utility model provides an external dynamic membrane anaerobic fermentation system, its characterized in that, includes external dynamic membrane element (1), anaerobic fermentation reactor (2), matrix jar (3) and gas measurement backwash discharge unit (4), wherein, the export of matrix jar (3) is passed through charge pump (31) and is connected with anaerobic fermentation reactor (2) bottom import pipeline, the delivery port of anaerobic fermentation reactor (2) is passed through circulating reflux pump (12) and is connected with the bottom import pipeline of external dynamic membrane element (1), and the gas outlet of anaerobic fermentation reactor (2) is divided into two routes, and one route and wet-type gas flowmeter (43) tube coupling, and another route links to each other with external dynamic membrane element (1) top pipeline through circulation backwash air pump (45), sends into backwash gas to external dynamic membrane element (1).
2. The external dynamic membrane anaerobic fermentation system as claimed in claim 1, wherein the external dynamic membrane element (1) mainly comprises a dynamic membrane (11), the dynamic membrane (11) is in a barrel shape, the membrane material is a stainless steel mesh, and the pore diameter is 50-150 μm.
3. The external dynamic membrane anaerobic fermentation system of claim 1, wherein a return pipeline is arranged between the top of the external dynamic membrane element (1) and the anaerobic fermentation reactor (2).
4. The external dynamic membrane anaerobic fermentation system of claim 1, wherein one path of the gas outlet of the anaerobic fermentation reactor (2) is connected with a wet gas flowmeter (43) through a one-way valve (41) and a water seal bottle (42) by a pipeline, and the other path is connected with a top pipeline of the external dynamic membrane element (1) through a gas backwashing buffer device (44) and a circulating backwashing air pump (45).
5. The external dynamic membrane anaerobic fermentation system of claim 4, wherein the gas backwash buffer device (44) is a sealed conical flask.
6. The external dynamic membrane anaerobic fermentation system of claim 1, wherein the bottom outlet of the external dynamic membrane element (1) is connected with a discharge barrel (13) through a discharge pump (14) by a pipeline, a pressure gauge (15) is arranged on the connecting pipeline, the range of the pressure gauge (15) is-50 kPa to 0kPa, and when the monitoring value is lower than-40 kPa, a circulating backwashing air pump (45) is started for backwashing.
7. The external dynamic membrane anaerobic fermentation system of claim 1, wherein the anaerobic fermentation reactor (2) is mixed and stirred by a stirrer (21), and the type of the fermentation reaction is 35-39 ℃ mesophilic fermentation or 55-60 ℃ thermophilic fermentation.
8. The anaerobic fermentation method by using the external dynamic membrane anaerobic fermentation system of claim 1, characterized in that organic waste firstly enters the anaerobic fermentation reactor (2) from the substrate tank (3), after mixing and fermentation in the anaerobic fermentation reactor (2), mud-water mixture enters the external dynamic membrane element (1) for solid-liquid separation, and the filtered discharge is collected through a discharge barrel (13); gas generated in the anaerobic fermentation reactor (2) passes through a one-way valve (41) and a water-sealed bottle (42) and then gas yield is measured by a wet gas flowmeter (43); the gas backwashing buffer device (44) acquires pressure data of a pressure gauge (15) in real time, and when the numerical value of the pressure gauge is lower than-40 kPa, a circulating backwashing air pump (45) is started to carry out gas backwashing; and when the air backwashing is finished, the circulating backwashing air pump (45) is stopped, and the normal operation is recovered.
9. The external dynamic membrane anaerobic fermentation method as claimed in claim 7, characterized in that the external dynamic membrane element (1) has a total solid content of sludge in the range of 10-100 g/L and a sludge reflux rate of 5-20L/h.
10. The external dynamic membrane anaerobic fermentation method as claimed in claim 7, wherein the gas backwashing strength is 5-20L/min, and the gas backwashing time is 2-10 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255832.3A CN111440705B (en) | 2020-04-02 | 2020-04-02 | External dynamic membrane anaerobic fermentation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255832.3A CN111440705B (en) | 2020-04-02 | 2020-04-02 | External dynamic membrane anaerobic fermentation system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111440705A true CN111440705A (en) | 2020-07-24 |
| CN111440705B CN111440705B (en) | 2023-08-22 |
Family
ID=71649768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010255832.3A Active CN111440705B (en) | 2020-04-02 | 2020-04-02 | External dynamic membrane anaerobic fermentation system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111440705B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262053A (en) * | 2022-01-17 | 2022-04-01 | 西安建筑科技大学 | Efficiency enhanced regulation and control method for anaerobic dynamic membrane fermentation system |
| CN114395466A (en) * | 2022-01-18 | 2022-04-26 | 西安建筑科技大学 | In-vitro rumen bionic system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185350A1 (en) * | 2012-06-15 | 2013-12-19 | 乐金电子研发中心(上海)有限公司 | Internal-circulation aeration anammox-membrane bioreactor |
| CN103880263A (en) * | 2014-03-06 | 2014-06-25 | 同济大学 | Dynamic membrane forming control method applicable to anaerobic digestion of excess sludge |
| CN205953660U (en) * | 2016-08-23 | 2017-02-15 | 潍坊中侨环境工程有限公司 | High flux microgrid dynamic membrane bioreactor |
| US20170050892A1 (en) * | 2015-08-19 | 2017-02-23 | Council Of Scientific & Industrial Research | Anaerobic column reactor for biodegradation of wastes and the process thereof |
| CN107384753A (en) * | 2017-08-15 | 2017-11-24 | 西安建筑科技大学 | A kind of efficient anaerobic fermentation bioreactor of dynamic membrane |
| CN108217937A (en) * | 2018-02-28 | 2018-06-29 | 西安建筑科技大学 | The device for rapidly starting and method of a kind of anaerobic ammonia oxidation process |
-
2020
- 2020-04-02 CN CN202010255832.3A patent/CN111440705B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185350A1 (en) * | 2012-06-15 | 2013-12-19 | 乐金电子研发中心(上海)有限公司 | Internal-circulation aeration anammox-membrane bioreactor |
| CN103880263A (en) * | 2014-03-06 | 2014-06-25 | 同济大学 | Dynamic membrane forming control method applicable to anaerobic digestion of excess sludge |
| US20170050892A1 (en) * | 2015-08-19 | 2017-02-23 | Council Of Scientific & Industrial Research | Anaerobic column reactor for biodegradation of wastes and the process thereof |
| CN205953660U (en) * | 2016-08-23 | 2017-02-15 | 潍坊中侨环境工程有限公司 | High flux microgrid dynamic membrane bioreactor |
| CN107384753A (en) * | 2017-08-15 | 2017-11-24 | 西安建筑科技大学 | A kind of efficient anaerobic fermentation bioreactor of dynamic membrane |
| CN108217937A (en) * | 2018-02-28 | 2018-06-29 | 西安建筑科技大学 | The device for rapidly starting and method of a kind of anaerobic ammonia oxidation process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262053A (en) * | 2022-01-17 | 2022-04-01 | 西安建筑科技大学 | Efficiency enhanced regulation and control method for anaerobic dynamic membrane fermentation system |
| CN114395466A (en) * | 2022-01-18 | 2022-04-26 | 西安建筑科技大学 | In-vitro rumen bionic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111440705B (en) | 2023-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201334394Y (en) | Full-automatic internal and external circulation PEIC anaerobic reactor | |
| CN102321675B (en) | Method and device for producing bio-gas by organic waste | |
| CN111440705B (en) | External dynamic membrane anaerobic fermentation system and method | |
| US11618872B2 (en) | Anaerobic digestion device based on self-sustained air flotation | |
| CN103880263A (en) | Dynamic membrane forming control method applicable to anaerobic digestion of excess sludge | |
| CN101177660B (en) | Anaerobic contact acid-producing fermentation hydrogen-generation reaction unit | |
| CN100567172C (en) | Inclined plate separate film biological reactor | |
| CN105060472A (en) | Anaerobic membrane bioreactor | |
| CN107384753B (en) | High-efficiency anaerobic fermentation dynamic membrane bioreactor | |
| CN109321444B (en) | Method for preparing hydrogen alkane gas by down-flow two-step anaerobic fermentation and biofilm reactor | |
| CN109437395B (en) | Device for realizing anaerobic methane production of urban domestic sewage and operation method | |
| CN108584871B (en) | Process and system for recovering carbon nano-material and hydrogen from urban organic waste | |
| CN204874012U (en) | Anaerobic membrane bioreactor | |
| CN114671521B (en) | MBR biological flow separation two-phase upflow anaerobic digestion reactor | |
| CN106882870B (en) | Anaerobic bioreactor for treating high-concentration refractory organic wastewater | |
| CN215161380U (en) | External anaerobic MBR device | |
| CN109336254A (en) | A kind of novel anaerobic reactor for garbage leachate wastewater processing | |
| CN106007271B (en) | Treatment system and treatment method for Fischer-Tropsch synthesis high-concentration organic wastewater | |
| CN101445294B (en) | A marsh gas preparation method of landfill leachate resources | |
| CN202881058U (en) | High-concentration alcohol wastewater treatment system | |
| CN202415327U (en) | High temperature and medium temperature anaerobic processing system of cassava alcohol waste water | |
| CN202072579U (en) | Automatic sludge discharging device | |
| CN217418447U (en) | Integrated device for coupling upflow anaerobic sludge blanket reactor and sedimentation tank | |
| CN203794697U (en) | Novel hydrolytic acidification reinforcing reaction device | |
| CN212559635U (en) | Hybrid membrane biological anaerobic fermentation reactor for kitchen wastewater |
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 |