CN111013394A - Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof - Google Patents
Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof Download PDFInfo
- Publication number
- CN111013394A CN111013394A CN201911117710.1A CN201911117710A CN111013394A CN 111013394 A CN111013394 A CN 111013394A CN 201911117710 A CN201911117710 A CN 201911117710A CN 111013394 A CN111013394 A CN 111013394A
- Authority
- CN
- China
- Prior art keywords
- ceramic membrane
- reaction tank
- hollow flat
- flat ceramic
- membrane
- 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
-
- 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
-
- 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
- B01D65/022—Membrane sterilisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/06—Flat membranes
-
- 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
-
- 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
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
Abstract
The invention relates to the technical field of sewage treatment, and provides a hollow flat ceramic membrane MBR reaction tank and a membrane cleaning method thereof. The device comprises a reaction tank, wherein a hollow flat ceramic membrane is arranged in the reaction tank, a permeate storage tank communicated with an internal flow channel of the hollow flat ceramic membrane is arranged outside the reaction tank, a water distribution pipe is arranged below the hollow flat ceramic membrane, a water outlet of the water distribution pipe points to the surface of the hollow flat ceramic membrane, a submersible pump connected with the water distribution pipe is arranged in the reaction tank, an ozone generating device is also arranged outside the reaction tank, and the ozone generating device is communicated with the internal flow channel of the hollow flat ceramic membrane; the organic combination of physical cleaning, chemical cleaning, surface sweeping and internal backwashing is realized, the degradation and the damage of dirt can be realized through ozone in a backwashing solution, the separation of the dirt and a membrane material can be promoted through the disturbance effect of water flow, and the high-efficiency recovery of the filtering performance of the hollow flat-plate ceramic membrane can be realized in a short time.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a hollow flat ceramic membrane MBR reaction tank and a membrane cleaning method thereof.
Background
The flat ceramic membrane with a hollow structure is a new membrane material in recent years, the current hollow flat ceramic membrane mainly comprises a microfiltration membrane and an ultrafiltration membrane, and compared with the traditional organic polymer membrane material, the hollow flat ceramic membrane has stronger pollution resistance, thermal stability and chemical stability, and is applied to drinking water treatment, municipal sewage treatment, industrial wastewater treatment and seawater desalination pretreatment at present. Although the hollow flat ceramic membrane has stronger anti-pollution capability compared with the traditional organic polymer membrane material, the occurrence of membrane pollution cannot be completely avoided. The occurrence of membrane pollution can cause a series of adverse effects such as increase of energy consumption, reduction of water yield, change of effluent quality and the like, and when the membrane pollution is accumulated to a certain degree, membrane cleaning is needed to recover the filtration performance of the membrane.
The traditional membrane cleaning method is mainly divided into two types of physical cleaning and chemical cleaning, wherein the physical cleaning is divided into surface washing and back washing. The surface washing is to wash and strip the dirt through the cross flow disturbance of water flow, gas or gas-water mixture near the membrane surface, but the method is difficult to obtain good cleaning effect on the dirt blocked in the filter cake layer, the gel layer and the membrane holes with strong binding force. The backwashing is to make water flow in the direction opposite to the dirt gathering direction through reverse pressurization, so as to realize the flushing of the dirt, and the backwashing has a certain cleaning effect on the dirt in the membrane pores, but is difficult to obtain a higher flux recovery rate for more stubborn organic pollution. The chemical cleaning is to decompose and destroy the membrane fouling substances through chemical reactions between chemical agents such as surfactants, complexing agents, oxidants and the like and the fouling, so as to recover the membrane performance. The chemical cleaning method reported at present mainly uses chemical agents to perform immersion cleaning on the membrane module, which makes the cleaning time longer, and usually takes several hours to complete. In addition, in order to avoid the pollution of the used chemical reagent to the water quality, the membrane module is usually taken out for ex-situ cleaning, which further increases the complexity of membrane cleaning.
Therefore, aiming at the problems of various membrane cleaning methods at present, how to combine the advantages of physical cleaning and chemical cleaning and fully utilize the chemical stability of the ceramic membrane which can tolerate strong oxidation so as to develop a high-efficiency, convenient and short-time membrane cleaning method, which has important significance for further expanding the application scale and the application field of the hollow flat-plate ceramic membrane technology and promoting the solution of the problems of water resource shortage and water environment pollution in China.
Disclosure of Invention
The invention aims to provide a membrane cleaning method for a hollow flat ceramic membrane MBR reaction tank, aiming at realizing the high-efficiency recovery of the filtering performance of the hollow flat ceramic membrane.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a dull and stereotyped ceramic membrane MBR reaction tank of cavity, includes the reaction tank, be provided with the dull and stereotyped ceramic membrane of cavity in the reaction tank, the outside of reaction tank be provided with the permeate liquid storage pond of the dull and stereotyped ceramic membrane's of cavity inside runner intercommunication, the below of the dull and stereotyped ceramic membrane of cavity is provided with the distributing pipe, the rivers export of distributing pipe is directional the surface of the dull and stereotyped ceramic membrane of cavity, be provided with in the reaction tank with the immersible pump that the distributing pipe is connected, the outside of reaction tank still is provided with ozone generating device, ozone generating device with the inside runner intercommunication of the dull and stereotype.
Optionally, the permeate storage tank is connected with a pressure pump, the pressure pump and the ozone generating device are jointly connected with a gas-water mixer, and the gas-water mixer is communicated with an internal flow channel of the hollow flat ceramic membrane.
Optionally, the hollow flat ceramic membrane is connected with a water collecting pipe, and a back-washing valve is connected between the gas-water mixer and the water collecting pipe.
Optionally, the water collecting pipe and the permeate storage tank are connected with a suction valve and a suction pump.
Optionally, the hollow flat ceramic membranes are arranged in multiple groups, the water distribution pipe is located below a gap between two adjacent flat ceramic membranes, and two rows of water outlets are formed in the water distribution pipe and correspondingly point to the surfaces of the two adjacent flat ceramic membranes.
Optionally, a driving device for driving the water distribution pipe to swing is arranged in the reaction tank; the driving device comprises a servo motor, the end parts of the water distribution pipes are respectively provided with a transmission gear, the transmission gears are connected with a transmission chain, and the servo motor is connected with the transmission chain.
Optionally, an air supply device is further arranged outside the reaction tank, and the water distribution pipe is connected with the air supply device.
The purpose of the present invention is to ensure the achievement of efficient recovery of the filtration performance of a hollow flat ceramic membrane.
In order to achieve the purpose, the invention adopts the following technical scheme: a membrane cleaning method for a hollow flat plate ceramic membrane MBR reaction tank comprises the following steps:
A. a plurality of groups of hollow flat ceramic membranes are arranged in the reaction tank in parallel at intervals for filtering sewage, and the sewage filtered and purified by the hollow flat ceramic membranes enters a permeate storage tank;
B. when the pollution condition of the hollow flat ceramic membrane is not serious, the submersible pump is arranged in the reaction tank to directly absorb raw water, and the surface of the hollow flat ceramic membrane is swept and washed through a water outlet arranged on the water distribution pipe;
C. when the pollution condition of the hollow flat ceramic membrane is serious, the ozone generating device generates ozone, and the ozone enters an internal flow channel of the hollow flat ceramic membrane to be mixed with sewage for backwashing;
D. when the hollow flat ceramic membrane fouling is severe, the operation in step B, C is performed in parallel.
Optionally, in the step C, the permeate storage tank is connected to a pressure pump, the pressure pump and the ozone generator are connected to a gas-water mixer together, and the ozone water solution generated by the gas-water mixer is used for backwashing the hollow flat ceramic membrane.
Optionally, in the step B, a transmission gear is arranged at an end of the water distribution pipe, the transmission gear is connected with a transmission chain, the servo motor drives the transmission chain to rotate, so that the water distribution pipe swings, a water outlet formed in the water distribution pipe performs up-and-down circulating sweeping on the surface of the hollow flat ceramic membrane, and meanwhile, the water distribution pipe can also be connected with an air supply device to provide aeration for the reaction tank.
Compared with the prior art, the method has the following technical effects:
(1) the invention realizes the organic combination of physical cleaning, chemical cleaning, surface sweeping and internal back washing, can degrade and destroy dirt through ozone in a back washing solution, and can promote the separation of the dirt and a membrane material through the disturbance effect of water flow, so that the multi-pipe physicochemical combined cleaning process can realize the high-efficiency recovery of the filtering performance of the hollow flat ceramic membrane in a short time;
(2) according to the invention, an ozone water solution backwashing system and a bottom high-speed sweeping system are constructed in the original immersed suction filtration system, so that the membrane cleaning process can be carried out in situ, the membrane module is prevented from being hoisted and separated in the traditional chemical cleaning process, the cleaning process is greatly simplified, the operation time is shortened, and the working strength is reduced;
(3) the invention fully utilizes the stable physicochemical property of the ceramic membrane material, uses the ozone with strong oxidizing ability dissolved in the backwashing water as a chemical cleaning agent, can realize the degradation and the damage to the dirt, and avoids the damage to the membrane material in the cleaning process;
(4) chemical substances such as complexing agents, surfactants and the like used in the traditional chemical cleaning process enter the environment along with membrane cleaning waste liquid to cause secondary pollution, while the chemical substances adopted by the invention are only ozone, and residual ozone for completing the cleaning task can be quickly decomposed into nontoxic and harmless oxygen, so that the occurrence of secondary pollution is effectively avoided.
Drawings
FIG. 1 is a schematic view of the arrangement of the apparatus of the present invention;
fig. 2 is a schematic diagram of the arrangement of the hollow flat ceramic membrane and the water distribution pipe.
Reference numerals:
1. a reaction tank; 2. a hollow flat ceramic membrane; 3. a water distribution pipe; 4. a submersible pump; 5. an ozone generating device; 6. a permeate storage tank; 7. a pressure pump; 8. a gas-water mixer; 9. a water collection pipe; 10. a back-flushing valve; 11. a suction valve; 12. a suction pump; 13. a servo motor; 14. a drive chain; 15. and an air supply device.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1, the hollow flat ceramic membrane MBR reaction tank provided by the invention comprises a reaction tank 1, wherein a hollow flat ceramic membrane 2 is arranged in the reaction tank 1, a permeate storage tank 6 communicated with an internal flow channel of the hollow flat ceramic membrane 2 is arranged outside the reaction tank 1, a water distribution pipe 3 is arranged below the hollow flat ceramic membrane 2, a water outlet of the water distribution pipe 3 points to the surface of the hollow flat ceramic membrane 2, a submersible pump 4 connected with the water distribution pipe 3 is arranged in the reaction tank 1, an ozone generating device 5 is further arranged outside the reaction tank 1, and the ozone generating device 5 is communicated with the internal flow channel of the hollow flat ceramic membrane 2.
Compared with the prior art, this application has contained two sets of membrane cleaning systems, one set is the physical cleaning system who sets up in reaction tank 1, the high-speed system of sweeping the washing in bottom promptly, wash hollow dull and stereotyped ceramic membrane 2's surface through immersible pump 4 and distribution pipe 3, another set is the chemical cleaning system who sets up outside reaction tank 1, ozone water solution back flush system promptly, produce ozone through ozone generating device 5, ozone is carried to hollow dull and stereotyped ceramic membrane 2 inside by the outside, ozone mixes with the permeate liquid and carries out the back flush to hollow dull and stereotyped ceramic membrane 2, ozone can make the adnexed filth on the hollow dull and stereotyped ceramic membrane 2 take place strong oxidation reaction, final filth is degraded and is destroyed, realize the high-efficient recovery of hollow dull and stereotyped ceramic membrane 2's filtration performance in the short time through above-mentioned two.
In some embodiments, as shown in fig. 1, the aqueous ozone backwash system comprises a booster pump 7 connected to the permeate storage tank 6, the booster pump 7 and the ozone generation device 5 being connected together with a gas-water mixer 8, the gas-water mixer 8 being in communication with the internal flow channel of the hollow flat ceramic membrane 2; the permeate liquid filtered by the hollow flat ceramic membrane 2 is used as a solution to dissolve ozone to form an ozone water solution to back flush the hollow flat ceramic membrane 2, the ozone can carry out secondary strong oxidation treatment on the permeate liquid to further remove pollutants, and the residual ozone after the ozone water solution is back flushed can continue to carry out strong oxidation on sewage in the reaction tank 1.
In some embodiments, as shown in fig. 1, the hollow flat ceramic membrane 2 is connected with a water collecting pipe 9, and a back washing valve 10 is connected between the gas-water mixer 8 and the water collecting pipe 9; the water collecting pipe 9 and the permeate storage tank 6 are connected to a suction valve 11 and a suction pump 12. The hollow flat ceramic membranes 2 are arranged in multiple groups, the water collecting pipes 9 are communicated with the multiple groups of hollow flat ceramic membranes 2 together, when the ozone water solution backwashing system operates, the suction valve 11 and the suction pump 12 are closed, and the pressurizing pump 7 and the backwashing valve 10 are opened.
In some embodiments, as shown in fig. 2, the hollow flat ceramic membranes 2 are arranged in multiple groups, the water distribution pipe 3 is located below the gap between two adjacent flat ceramic membranes 2, and two rows of water outlets are formed in the water distribution pipe 3 and correspondingly point to the surfaces of the two adjacent flat ceramic membranes 2. The surfaces of the two hollow flat ceramic membranes 2 are cleaned through one water distribution pipe 3, and the water distribution pipe 3 below the outermost hollow flat ceramic membrane 2 is provided with only one water outlet.
In some embodiments, as shown in fig. 2, a driving device for driving the water distribution pipe 3 to swing is arranged in the reaction tank 1; the driving device comprises a servo motor 13, the end parts of the water distribution pipes 3 are respectively provided with a transmission gear, the transmission gears are connected with a transmission chain 14, and the servo motor 13 is connected with the transmission chain 14. In order to enhance the physical cleaning effect of the bottom high-speed sweeping and washing system, the water distribution pipe 3 can swing properly, so that the water outlet can sweep and wash the surface of the hollow flat ceramic membrane 2 in an up-and-down circulating manner, the servo motor 13 is connected with the water distribution pipe 3 through a hose, and the connection relationship between the water distribution pipe 3 and the servo motor 13 cannot be influenced during the swinging.
In some embodiments, as shown in fig. 1, the reaction tank 1 is further provided with a gas supply device 15 at the outside thereof, and the water distribution pipe 3 is connected to the gas supply device 15. The air supply device 15 supplies air to the water distribution pipe 3, and generates water flow disturbance and air flow disturbance through the water flow outlet, so that the surface of the hollow flat ceramic membrane 2 can be cleaned, and meanwhile, aeration can be provided for the reaction tank 1.
A membrane cleaning method for a hollow flat plate ceramic membrane MBR reaction tank comprises the following steps:
A. a plurality of groups of hollow flat ceramic membranes 2 are arranged in the reaction tank 1 in parallel at intervals for filtering sewage, and the sewage filtered and purified by the hollow flat ceramic membranes 2 enters a permeate storage tank 6;
B. when the pollution condition of the hollow flat ceramic membrane 2 is not serious, the submersible pump 4 is arranged in the reaction tank 1 to directly absorb raw water, the end part of the water distribution pipe 3 is provided with a transmission gear which is connected with a transmission chain 14, a servo motor 13 drives the transmission chain 14 to operate so as to lead the water distribution pipe 3 to swing, a water outlet arranged on the water distribution pipe 3 circularly sweeps the surface of the hollow flat ceramic membrane 2 up and down, the sweeping speed is controlled to be 2m/s, and meanwhile, the water distribution pipe 3 can also be connected with a gas supply device 15 to provide aeration for the reaction tank 1;
C. when the pollution condition of the hollow flat ceramic membrane 2 is serious, the ozone generating device 5 generates ozone, the permeate storage pool 6 is connected with the pressure pump 7, the pressure pump 7 and the ozone generating device 5 are jointly connected with the gas-water mixer 8, the ozone water solution is generated through the gas-water mixer 8, the concentration of the ozone in the ozone water solution is kept at 1mg/L, and after the concentration of the ozone in the backwashing water solution is regulated, the backwashing pressure is controlled at 0.2MPa through the backwashing valve 10, and the hollow flat ceramic membrane 2 is backwashed;
D. when the membrane fouling of the hollow flat ceramic membrane 2 is severe, the operations in step B, C are performed in parallel.
After the ozone water solution backwashing system and the bottom high-speed sweeping system are finished, the pressurizing pump 7 and the backwashing valve 10 are closed, the suction valve 11 and the suction pump 12 are opened to carry out suction filtration on the hollow flat ceramic membrane 2, the initial operation transmembrane pressure difference of the hollow flat ceramic membrane 2 is tested, the flux recovery rate in the membrane cleaning process is calculated, the calculation result is 99.1%, and the physicochemical combined membrane cleaning method has an excellent membrane cleaning effect.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a dull and stereotyped ceramic membrane MBR reaction tank of cavity which characterized in that: including reaction tank (1), be provided with cavity dull and stereotyped ceramic membrane (2) in reaction tank (1), the outside of reaction tank (1) be provided with permeate liquid storage tank (6) of the inside runner intercommunication of cavity dull and stereotyped ceramic membrane (2), the below of cavity dull and stereotyped ceramic membrane (2) is provided with distribution pipe (3), the rivers export of distribution pipe (3) is directional the surface of cavity dull and stereotyped ceramic membrane (2), be provided with in reaction tank (1) with immersible pump (4) that distribution pipe (3) are connected, the outside of reaction tank (1) still is provided with ozone generating device (5), ozone generating device (5) with the inside runner intercommunication of cavity dull and stereotyped ceramic membrane (2).
2. The hollow flat ceramic membrane MBR reaction tank of claim 1, wherein: the permeate liquid storage pool (6) is connected with a pressure pump (7), the pressure pump (7) and the ozone generating device (5) are jointly connected with a gas-water mixer (8), and the gas-water mixer (8) is communicated with an internal flow channel of the hollow flat ceramic membrane (2).
3. The hollow flat ceramic membrane MBR reaction tank of claim 2, wherein: the hollow flat ceramic membrane (2) is connected with a water collecting pipe (9), and a back washing valve (10) is connected between the gas-water mixer (8) and the water collecting pipe (9).
4. The hollow flat ceramic membrane MBR reaction tank of claim 3, wherein: the water collecting pipe (9) and the permeate storage pool (6) are connected with a suction valve (11) and a suction pump (12).
5. The hollow flat ceramic membrane MBR reaction tank of claim 1, wherein: the hollow flat ceramic membrane (2) is provided with a plurality of groups, the water distribution pipe (3) is positioned below the gap between two adjacent flat ceramic membranes (2), and the water distribution pipe (3) is provided with two rows of water outlets which correspondingly point to the surfaces of the two adjacent flat ceramic membranes (2).
6. The hollow flat ceramic membrane MBR reaction tank of claim 1, wherein: a driving device for driving the water distribution pipe (3) to swing is arranged in the reaction tank (1); the driving device comprises a servo motor (13), transmission gears are arranged at the end parts of the water distribution pipes (3), the transmission gears are connected with a transmission chain (14), and the servo motor (13) is connected with the transmission chain (14).
7. The hollow flat ceramic membrane MBR reaction tank of claim 1, wherein: the outside of reaction tank (1) still is provided with air feeder (15), water distribution pipe (3) with air feeder (15) are connected.
8. A membrane cleaning method for a hollow flat plate ceramic membrane MBR reaction tank is characterized by comprising the following steps: the method comprises the following steps:
A. a plurality of groups of hollow flat ceramic membranes (2) are parallelly arranged in the reaction tank (1) at intervals for filtering sewage, and the sewage filtered and purified by the hollow flat ceramic membranes (2) enters a permeate storage tank (6);
B. when the membrane pollution condition of the hollow flat ceramic membrane (2) is not serious, the submersible pump (4) is arranged in the reaction tank (1) to directly absorb raw water, and the surface of the hollow flat ceramic membrane (2) is swept and washed through a water outlet formed in the water distribution pipe (3);
C. when the membrane pollution condition of the hollow flat ceramic membrane (2) is serious, the ozone generating device (5) generates ozone, and the ozone enters an internal flow channel of the hollow flat ceramic membrane (2) to be mixed with sewage for backwashing;
D. when the membrane fouling of the hollow flat ceramic membrane (2) is severe, the operations in step B, C are performed in parallel.
9. The membrane cleaning method according to claim 8, characterized in that: in the step C, the permeate storage tank (6) is connected with a pressure pump (7), the pressure pump (7) and the ozone generating device (5) are jointly connected with a gas-water mixer (8), and ozone water solution is generated through the gas-water mixer (8) to carry out backwashing on the hollow flat ceramic membrane (2).
10. The membrane cleaning method according to claim 8, characterized in that: in the step B, a transmission gear is arranged at the end part of the water distribution pipe (3) and is connected with a transmission chain (14), a servo motor (13) drives the transmission chain (14) to operate so that the water distribution pipe (3) swings, a water outlet formed in the water distribution pipe (3) circularly sweeps the surface of the hollow flat ceramic membrane (2) up and down, and meanwhile, the water distribution pipe (3) can also be connected with an air supply device (15) to provide aeration for the reaction tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117710.1A CN111013394B (en) | 2019-11-15 | 2019-11-15 | Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117710.1A CN111013394B (en) | 2019-11-15 | 2019-11-15 | Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111013394A true CN111013394A (en) | 2020-04-17 |
| CN111013394B CN111013394B (en) | 2022-02-08 |
Family
ID=70200301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911117710.1A Active CN111013394B (en) | 2019-11-15 | 2019-11-15 | Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111013394B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047459A (en) * | 2020-09-04 | 2020-12-08 | 山西大学 | Sewage regeneration system and method based on synchronous online backwashing disinfection of ozone water |
| CN112604505A (en) * | 2020-12-28 | 2021-04-06 | 江苏新时膜科技有限公司 | Flat ceramic membrane cleaning device and using method thereof |
| CN112619430A (en) * | 2020-12-02 | 2021-04-09 | 南京工业大学 | Membrane flux instrument |
| CN113816492A (en) * | 2021-10-19 | 2021-12-21 | 成都工业学院 | Based on O3Automatic backwashing system for MBR flat membrane and use method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331248B1 (en) * | 1995-09-21 | 2001-12-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
| US20010052494A1 (en) * | 1999-10-25 | 2001-12-20 | Pierre Cote | Chemical cleaning backwash for normally immersed membranes |
| US20100300968A1 (en) * | 2009-06-02 | 2010-12-02 | Siemens Water Technologies Corp. | Membrane cleaning with pulsed gas slugs |
| WO2011158559A1 (en) * | 2010-06-14 | 2011-12-22 | 東レ株式会社 | Method for cleaning membrane modules |
| CN108483636A (en) * | 2018-06-08 | 2018-09-04 | 山东铭创环境工程有限公司 | Disc type ceramic membrane MBR sewage-treatment plants |
| CN208038121U (en) * | 2018-01-23 | 2018-11-02 | 闫慧涵 | A kind of swingable flat ceramic film device |
| US20180370828A1 (en) * | 2017-06-23 | 2018-12-27 | Nanjing University | Membrane bioreactor for strengthening membrane fouling control and method thereof |
| CN208553778U (en) * | 2018-06-21 | 2019-03-01 | 江西博鑫精陶环保科技有限公司 | A kind of flat ceramic membrane module for removing film surface organic matter using air water stream |
| CN209024243U (en) * | 2018-08-30 | 2019-06-25 | 江西博鑫精陶环保科技有限公司 | A kind of hollow plate membranous system of random lifting cleaning |
| CN110026089A (en) * | 2019-05-23 | 2019-07-19 | 广西碧清源环保投资有限公司 | A kind of cleaning device and cleaning method of earthenware slab membrane module |
| CN209348432U (en) * | 2018-11-15 | 2019-09-06 | 中国化学工程重型机械化有限公司 | More cleaning model ceramic membrane mould groups |
| CN209423355U (en) * | 2018-12-28 | 2019-09-24 | 南京金湖环保科技有限公司 | A kind of MBR plate membrane cleaning device |
-
2019
- 2019-11-15 CN CN201911117710.1A patent/CN111013394B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331248B1 (en) * | 1995-09-21 | 2001-12-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
| US20010052494A1 (en) * | 1999-10-25 | 2001-12-20 | Pierre Cote | Chemical cleaning backwash for normally immersed membranes |
| US20100300968A1 (en) * | 2009-06-02 | 2010-12-02 | Siemens Water Technologies Corp. | Membrane cleaning with pulsed gas slugs |
| WO2011158559A1 (en) * | 2010-06-14 | 2011-12-22 | 東レ株式会社 | Method for cleaning membrane modules |
| US20180370828A1 (en) * | 2017-06-23 | 2018-12-27 | Nanjing University | Membrane bioreactor for strengthening membrane fouling control and method thereof |
| CN208038121U (en) * | 2018-01-23 | 2018-11-02 | 闫慧涵 | A kind of swingable flat ceramic film device |
| CN108483636A (en) * | 2018-06-08 | 2018-09-04 | 山东铭创环境工程有限公司 | Disc type ceramic membrane MBR sewage-treatment plants |
| CN208553778U (en) * | 2018-06-21 | 2019-03-01 | 江西博鑫精陶环保科技有限公司 | A kind of flat ceramic membrane module for removing film surface organic matter using air water stream |
| CN209024243U (en) * | 2018-08-30 | 2019-06-25 | 江西博鑫精陶环保科技有限公司 | A kind of hollow plate membranous system of random lifting cleaning |
| CN209348432U (en) * | 2018-11-15 | 2019-09-06 | 中国化学工程重型机械化有限公司 | More cleaning model ceramic membrane mould groups |
| CN209423355U (en) * | 2018-12-28 | 2019-09-24 | 南京金湖环保科技有限公司 | A kind of MBR plate membrane cleaning device |
| CN110026089A (en) * | 2019-05-23 | 2019-07-19 | 广西碧清源环保投资有限公司 | A kind of cleaning device and cleaning method of earthenware slab membrane module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047459A (en) * | 2020-09-04 | 2020-12-08 | 山西大学 | Sewage regeneration system and method based on synchronous online backwashing disinfection of ozone water |
| CN112619430A (en) * | 2020-12-02 | 2021-04-09 | 南京工业大学 | Membrane flux instrument |
| CN112604505A (en) * | 2020-12-28 | 2021-04-06 | 江苏新时膜科技有限公司 | Flat ceramic membrane cleaning device and using method thereof |
| CN113816492A (en) * | 2021-10-19 | 2021-12-21 | 成都工业学院 | Based on O3Automatic backwashing system for MBR flat membrane and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111013394B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111013394B (en) | Hollow flat plate ceramic membrane MBR reaction tank and membrane cleaning method thereof | |
| CN102030390B (en) | Membrane precision filter for wastewater treatment and application thereof | |
| CN105478016B (en) | A kind of automatic backwash scraping tubular membrane filter device | |
| EP2554245A1 (en) | Method for cleaning separation membrane module, and method for fresh water generation | |
| CN108217844A (en) | A kind of water purification machine is positive and negative to rinse membranous system and control method | |
| CN112717696A (en) | Ultrafiltration membrane system cleaned by micro-bubble ozone and cleaning method thereof | |
| CN107986433A (en) | A kind of porous aggregate cladded type MBR devices and sewage water treatment method | |
| CN104474906A (en) | Method for controlling membrane pollution in pulse feed mode | |
| CN204039126U (en) | A kind of membrane bioreactor | |
| CN204022592U (en) | A kind of Treated sewage reusing treatment facility | |
| CN102145258B (en) | Method for cleaning heavy oil sludge-polluted membrane module | |
| CN200971330Y (en) | Membrane biological reactor with membrane cleaning device | |
| CN205269420U (en) | Automatic back flush scraping tubular membrane filter equipment | |
| CN205222800U (en) | Sewage anaerobism MBR processing system | |
| CN105399249B (en) | A kind of device and method of municipal wastewater advanced treating | |
| CN101250011A (en) | Combined filtrating system and method for advanced treatment of dyeing wastewater | |
| CN110102188A (en) | Concentrated water electrocatalytic oxidation permeates cleaning reverse osmosis/nanofiltration membrane method and device online | |
| CN104192994B (en) | A kind of membrane bioreactor | |
| CN102580543A (en) | Filter pipe and filter component formed by same | |
| CN216639155U (en) | Ceramic membrane water filtering device | |
| CN100558655C (en) | A kind of back-flushing operation method of bioreactor of dynamic membrane | |
| CN213357244U (en) | Tobacco wastewater treatment system | |
| CN114230052A (en) | Ceramic membrane water filtering device and pretreatment method thereof | |
| JP2001187324A (en) | Washing method of membrane filter device, and water treating device | |
| CN202555043U (en) | Filter tube and filter assembly composed of the filter tube |
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 |