CN114573182B - Membrane separation process and device for sewage treatment - Google Patents

Membrane separation process and device for sewage treatment Download PDF

Info

Publication number
CN114573182B
CN114573182B CN202210132564.5A CN202210132564A CN114573182B CN 114573182 B CN114573182 B CN 114573182B CN 202210132564 A CN202210132564 A CN 202210132564A CN 114573182 B CN114573182 B CN 114573182B
Authority
CN
China
Prior art keywords
sewage
pipe
communicated
sludge
cavity
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
Application number
CN202210132564.5A
Other languages
Chinese (zh)
Other versions
CN114573182A (en
Inventor
王柏京
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Ziju Petrochemical Equipment Co ltd
Original Assignee
Xuzhou Ziju Petrochemical Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Ziju Petrochemical Equipment Co ltd filed Critical Xuzhou Ziju Petrochemical Equipment Co ltd
Priority to CN202210132564.5A priority Critical patent/CN114573182B/en
Publication of CN114573182A publication Critical patent/CN114573182A/en
Application granted granted Critical
Publication of CN114573182B publication Critical patent/CN114573182B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • 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
    • 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
    • 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)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Activated Sludge Processes (AREA)

Abstract

The invention relates to the field of sewage treatment, in particular to a membrane separation process and a device for sewage treatment, wherein the process comprises the following steps: cyclone precipitation, aeration decomposition, sewage cyclic precipitation and sludge discharge. According to the invention, through the treatment tank, the sludge interception net, the guide cylinder arranged in the mixing cavity, the cylindrical separation membrane arranged in the guide cylinder, the guide cylinder and the horizontal aeration pipe, the sewage enters the treatment tank to form rotational flow, and the gas generated by the aeration pipe pushes the sewage to move upwards into the guide cylinder, so that the sewage circularly flows in the treatment tank from top to bottom, the sewage passing through the sludge interception net flows through the cylindrical separation membrane from bottom to top, the sludge content in the sewage contacted with the cylindrical separation membrane is reduced, and meanwhile, the sewage flowing in parallel with the cylindrical separation membrane is reduced to adhere to the cylindrical separation membrane, so that the surface of the cylindrical separation membrane is clean, the passing rate is ensured, the treatment process is simple, and the maintenance period is long.

Description

Membrane separation process and device for sewage treatment
Technical Field
The invention relates to the field of sewage treatment, in particular to a membrane separation process and a device for sewage treatment.
Background
In the sewage treatment process, the membrane treatment process is adopted, so that various impurities in the sewage can be effectively cleaned, the structure is simple, the treatment effect is good, and in addition, the installation and the replacement are convenient.
However, in the use process of the traditional separation membrane for sewage treatment, the separation membrane is easy to be blocked by sludge, so that the passing rate is reduced, and further the maintenance period of the separation membrane is short and the maintenance is complicated.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides a membrane separation process and a device for sewage treatment.
The invention adopts the following technical scheme to overcome the technical problems, and specifically comprises the following steps:
a membrane separation process for sewage treatment comprises the following steps:
s1, adding a flocculating agent into sewage, and then precipitating the sewage in a centrifugal precipitation mode;
s2, aerating the precipitated sewage, performing biochemical reaction to decompose organic impurities, enabling the precipitated sewage to circularly contact with a separation membrane, performing osmotic filtration, and discharging filtered clear water;
s3, cleaning the precipitated sludge.
A membrane separation device for sewage treatment, comprising:
the device comprises a base and a treatment tank vertically arranged on the base, wherein a mixing cavity with a conical cavity with a wide upper part and a narrow lower part, a sludge cavity with a conical cavity with a narrow upper part and a wide lower part and a columnar communication cavity which is communicated with the mixing cavity and the sludge cavity are arranged in the treatment tank;
a guide cylinder which is arranged in the mixing cavity and the top of which is fixedly connected with the top plate of the treatment tank through a vertical connecting rod, and a sewage inlet pipe which is tangentially communicated with the mixing cavity; the guide cylinder is a cylinder with openings at the upper end and the lower end;
a cylindrical separation membrane which is hung and installed in the middle of the guide cylinder and forms an annular cavity with the inner wall of the guide cylinder, and the upper end of the cylindrical separation membrane is communicated with a clear water pipe penetrating through the top plate of the treatment tank;
the device comprises a backflow cylinder, a sludge interception net and a horizontal aeration pipe, wherein the backflow cylinder is arranged below the guide cylinder and is provided with an annular cavity between the backflow cylinder and the inner wall of the treatment tank, the sludge interception net is arranged in the backflow cylinder, the horizontal aeration pipe is arranged in the sludge cavity and is positioned below the backflow cylinder, and the horizontal aeration pipe is communicated with the aeration mechanism.
Preferably, the reflux drum includes an upper conical cover that is upwardly open, a lower conical cover that is downwardly open, and a cylindrical cover that communicates the upper conical cover and the lower conical cover.
Preferably, the lower part of the guide cylinder extends into the upper conical cover, the inner wall of the upper conical cover is fixedly connected with a guide ring positioned below the edge of the guide cylinder, and the guide ring is provided with an annular groove with a semicircular section.
Preferably, the aeration mechanism comprises a vertical pipe vertically communicated with the horizontal aeration pipe, the vertical pipe penetrates through the bottom plate of the treatment tank and is communicated with an air inlet pipe through a rotary joint, and the air inlet pipe is communicated with a blower fixedly connected with the base; the lower part of the vertical pipe is connected with a driving motor fixedly connected with the base through a transmission gear set.
Preferably, a vertical aeration pipe which is vertically arranged is arranged in an annular cavity formed between the cylindrical separation membrane and the inner wall of the guide cylinder, and the vertical aeration pipe is communicated with the vertical pipe through a connecting pipe.
Preferably, the lower end of the sludge interception net is abutted with a scraping plate fixedly connected with the vertical pipe.
Preferably, a conical cylinder which is provided with an annular cavity and is opened at the upper end and the lower end is arranged below the scraping plate and is formed with the inner wall of the lower conical cover.
Preferably, the sewage inlet pipe is communicated with a liquid inlet pipe, the liquid inlet pipe is communicated with a storage tank arranged at the top of the treatment tank, and flocculant is filled in the storage tank; and a valve is arranged on the liquid inlet pipe.
Preferably, the lower end of the treatment tank is communicated with a mud discharging pipe, and a valve is arranged on the mud discharging pipe.
After adopting the structure, compared with the prior art, the invention has the following advantages:
according to the invention, the treatment tank is provided with the mixing cavity, the sludge cavity, the sewage inlet pipe, the sludge interception net, the guide cylinder arranged in the mixing cavity, the cylindrical separation membrane arranged in the guide cylinder, the guide cylinder and the horizontal aeration pipe, so that rotational flow is formed after the sewage enters the treatment tank, the sewage is pushed to move upwards into the guide cylinder by the gas generated by the aeration pipe, the sewage circularly flows in the treatment tank from top to bottom, the sewage passing through the sludge interception net flows through the cylindrical separation membrane from bottom to top, the sludge content in the sewage contacted with the cylindrical separation membrane is reduced, and meanwhile, the adhesion between the sludge and the cylindrical separation membrane is reduced by the sewage flowing in parallel with the cylindrical separation membrane, so that the surface cleanliness of the cylindrical separation membrane is ensured, and the passing rate is ensured; the membrane treatment process has long maintenance period, simple process and high treatment efficiency.
According to the invention, the vertical aeration pipe which moves circularly is arranged in the annular cavity formed by the guide cylinder and the cylindrical separation membrane, and the surface of the cylindrical separation membrane is washed by the bubbles circumferentially, so that the surface of the cylindrical separation membrane is washed, the water permeability of the cylindrical separation membrane is improved, and the membrane separation efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of a front view of a membrane separation device for sewage treatment.
Fig. 2 is a schematic perspective view of a rear view of a membrane separation device for sewage treatment.
FIG. 3 is a schematic cross-sectional view of a membrane separation device for sewage treatment.
FIG. 4 is a schematic perspective view of an aeration mechanism in a membrane separation device for sewage treatment.
Fig. 5 is a schematic diagram of an assembly structure of a guide cylinder, a sludge interception net, a guide ring and a conical cover in a membrane separation device for sewage treatment.
In the figure: 1. a treatment tank; 101. a mixing chamber; 102. a communication chamber; 103. a sludge chamber; 2. a sewage inlet pipe; 3. a guide cylinder; 4. a cylindrical separation membrane; 5. a clear water pipe; 6. a reflux drum; 601. an upper cone cover; 602. a cylindrical cover; 603. a lower cone cover; 7. a horizontal aerator pipe; 8. a vertical tube; 9. an air inlet pipe; 10. a blower; 11. a drive gear set; 12. a driving motor; 13. a horizontal connecting rod; 14. a guide ring; 15. a sludge interception net; 16. a conical cylinder; 17. a scraper; 18. a vertical aerator pipe; 19. a connecting pipe; 20. a liquid inlet pipe; 21. a storage tank; 22. a base; 23. a mud pipe.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 5, in one embodiment of the present invention, a membrane separation process for sewage treatment includes the following steps:
s1, adding a flocculating agent into sewage, and then precipitating the sewage in a centrifugal precipitation mode;
s2, aerating the precipitated sewage, performing biochemical reaction to decompose organic impurities, enabling the precipitated sewage to circularly contact with a separation membrane, performing osmotic filtration, and discharging filtered clear water;
s3, cleaning the precipitated sludge.
Specifically, through filling flocculating agent and centrifugal sedimentation to mud, the quick purification sewage, then carry out organic matter through activated sludge through the aeration and decompose and purify, then through the membrane filtration, have better purifying effect, avoid mud erosion separation membrane simultaneously.
A membrane separation device for sewage treatment, comprising:
the device comprises a base 22 and a treatment tank 1 vertically arranged on the base 22, wherein a mixing cavity 101 with a conical cavity with a wide upper part and a narrow lower part, a sludge cavity 103 with a conical cavity with a narrow upper part and a wide lower part and a columnar communication cavity 102 which is communicated with the mixing cavity 101 and the sludge cavity 103 are arranged in the treatment tank 1;
a guide cylinder 3 which is arranged in the mixing cavity 101 and the top of which is fixedly connected with the top plate of the treatment tank 1 through a vertical connecting rod, and a sewage inlet pipe 2 which is tangentially communicated with the mixing cavity 101; the guide cylinder 3 is a cylinder with openings at the upper end and the lower end;
a cylindrical separation membrane 4 which is hung and installed in the middle of the guide cylinder 3 and forms an annular cavity with the inner wall of the guide cylinder 3, and a clear water pipe 5 which penetrates through the top plate of the treatment tank 1 is communicated with the upper end of the cylindrical separation membrane 4;
the device comprises a backflow cylinder 6, a sludge interception net 15 and a horizontal aeration pipe 7, wherein the backflow cylinder 6 is arranged below the guide cylinder 3 and forms an annular cavity with the inner wall of the treatment tank 1, the sludge interception net 15 is arranged in the backflow cylinder 6, the horizontal aeration pipe 7 is arranged in the sludge cavity 103 and is positioned below the backflow cylinder 6, and the horizontal aeration pipe 7 is communicated with an aeration mechanism.
Specifically, sewage enters into the mixing cavity 101 through the tangential direction of the sewage inlet pipe 2, the sewage forms a rotational flow in the mixing cavity 101 under the action of the guide cylinder 3, impurities in the sewage are gathered at the inner wall of the mixing cavity 101, the gathering and descending of precipitation are accelerated, meanwhile, the gas blown out by the horizontal aeration pipe 7 pushes water flow to flow through the guide cylinder 3 from bottom to top, and then the sewage circulates under the mountain in the treatment tank 1, so that the sewage and the cylindrical separation membrane 4 flow in parallel, and then the sludge is prevented from adhering to the cylindrical separation membrane 4, and meanwhile, under the action of the sludge interception net 15, the sludge is prevented from entering into the guide cylinder 3 to contact with the cylindrical separation membrane 4 along with the sewage flowing from bottom to top, so that the protection effect is improved.
In addition, the sewage circularly flows up and down to accelerate centrifugal aggregation of the sediment and separate the sediment for multiple times, thereby improving the purifying effect.
In this embodiment, the sewage inlet pipe 2 is communicated with a liquid inlet pipe 20, the liquid inlet pipe 20 is communicated with a storage tank 21 installed at the top of the treatment tank 1, and a flocculant is poured into the storage tank 21; the liquid inlet pipe 20 is provided with a valve.
By opening the valve on the liquid inlet pipe 20, the flocculant flows into the sewage inlet pipe 2 from the storage tank 21 and forms rotational flow mixing along with sewage in the mixing cavity 101, so that the mixing effect and efficiency are improved, and the generation of sediment is accelerated.
In this embodiment, the lower end of the treatment tank 1 is communicated with a sludge discharge pipe 23, and a valve is installed on the sludge discharge pipe 23.
In another embodiment of the present invention, the reflux drum 6 includes an upper tapered cap 601 that is upwardly opened, a lower tapered cap 603 that is downwardly opened, and a cylindrical cap 602 that communicates the upper tapered cap 601 and the lower tapered cap 603.
Specifically, the backflow cylinder 6 separates the water flow precipitated by the downward rotational flow from the water flow flowing from bottom to top, and the water flow is not interfered with each other, so that the up-down circulating flow is realized, and in addition, it should be noted that the backflow cylinder 6 is fixedly connected with the inner wall of the treatment tank 1 through the horizontal connecting rod 13.
In this embodiment, the lower portion of the guide cylinder 3 extends into the upper conical cover 601, the inner wall of the upper conical cover 601 is fixedly connected with a guide ring 14 located below the edge of the guide cylinder 3, and the guide ring 14 is provided with an annular groove with a semicircular section.
Specifically, the sediment moves downwards along the inner wall of the mixing chamber 101 under the action of the centrifugal force of the sewage cyclone, the distance between the sewage and the sediment in the upper conical cover 601 is larger, at this time, the sediment and the sludge in the sewage around the guide cylinder 3 are less, and the sediment and the sludge directly enter the upper conical cover 601 and are diverted into the guide cylinder 3 under the action of the guide ring 14, so that the sewage separation and diversion are realized, and the sewage treatment speed is improved.
In another embodiment of the invention, the aeration mechanism comprises a vertical pipe 8 vertically communicated with the horizontal aeration pipe 7, the vertical pipe 8 penetrates through the bottom plate of the treatment tank 1 and is communicated with an air inlet pipe 9 through a rotary joint, and the air inlet pipe 9 is communicated with a blower 10 fixedly connected with a base 22; the lower part of the vertical pipe 8 is connected with a driving motor 12 fixedly connected with a base 22 through a transmission gear set 11.
Specifically, the air blower 10 injects air into the vertical pipe 8, the driving motor 12 drives the vertical pipe 8 to rotate through the transmission gear set 11, the vertical pipe 8 drives the horizontal aeration pipe 7 to rotate, the gas diffusion effect is improved, bacteria in activated sludge are promoted to contact with oxygen, the microorganism reproduction is promoted, the decomposition of organic matters is accelerated, and the purification effect is ensured.
In another embodiment of the present invention, a vertical aeration pipe 18 is installed in an annular cavity formed between the cylindrical separation membrane 4 and the inner wall of the guide cylinder 3, and the vertical aeration pipe 18 is communicated with the vertical pipe 8 through a connecting pipe 19.
Specifically, the gas is sprayed out through the vertical aerator pipe 18 to flush the surface of the cylindrical separation membrane 4, so as to perform annular cleaning on the surface of the cylindrical separation membrane 4, avoid sludge adhesion, and promote water flow to move upwards.
In the embodiment, the lower end of the sludge interception net 15 is abutted with a scraper 17 fixedly connected with the vertical pipe 8.
Specifically, the vertical pipe 8 drives the scraping plate 17 to rotate, the scraping plate 17 rotates and cleans the sludge interception net, the blocking of the sludge interception net 15 is avoided, and the sludge interception effect is ensured.
In this embodiment, a conical cylinder 16 with an annular cavity formed with the inner wall of the lower conical cover 603 and opened at the upper and lower ends is arranged below the scraper 17.
Specifically, the conical cylinder 16 cooperates with the scraper 17, so that the sludge trapped by the sludge trapping net 15 moves into the annular cavity between the conical cylinder 16 and the lower conical cover 603 under the centrifugal pushing force of the scraper 17, and secondary sedimentation of the sludge is accelerated.
Working principle: the sewage enters the mixing cavity 101 tangentially through the sewage inlet pipe 2, the sewage forms a rotational flow in the mixing cavity 101 under the action of the guide cylinder 3, so that impurities in the sewage are gathered at the inner wall of the mixing cavity 101, the gathering and descending of the sediment are accelerated, meanwhile, the gas blown out by the horizontal aerator pipe 7 pushes the water flow to flow through the guide cylinder 3 from bottom to top, so that the sewage circulates under the mountain in the treatment tank 1, the sewage and the cylindrical separation membrane 4 flow in parallel, the sludge is prevented from adhering to the cylindrical separation membrane 4, and the sludge is prevented from contacting the cylindrical separation membrane 4 along with the sewage flowing from bottom to top in the guide cylinder 3 under the action of the sludge interception net 15;
the air blower 10 injects air into the vertical tube 8, the driving motor 12 drives the vertical tube 8 to rotate through the transmission gear set 11, the vertical tube 8 drives the horizontal aeration tube 7 to rotate, the gas diffusion effect is improved, the gas is sprayed out through the vertical aeration tube 18 to wash the surface of the cylindrical separation membrane 4, and the surface of the cylindrical separation membrane 4 is cleaned in an annular mode.
The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. It is intended that all such variations as fall within the scope of the appended claims.

Claims (5)

1. A membrane separation device for sewage treatment, comprising:
the device comprises a base (22) and a treatment tank (1) vertically arranged on the base (22), wherein a mixing cavity (101) with a conical cavity with a wide upper part and a narrow lower part, a sludge cavity (103) with a conical cavity with a narrow upper part and a wide lower part and a columnar communication cavity (102) which is communicated with the mixing cavity (101) and the sludge cavity (103) are arranged in the treatment tank (1);
a guide cylinder (3) which is arranged in the mixing cavity (101) and the top of which is fixedly connected with the top plate of the treatment tank (1) through a vertical connecting rod, and a sewage inlet pipe (2) which is tangentially communicated with the mixing cavity (101); the guide cylinder (3) is a cylinder with openings at the upper end and the lower end;
a cylindrical separation membrane (4) which is hung and installed in the middle of the guide cylinder (3) and forms an annular cavity with the inner wall of the guide cylinder (3), and a clear water pipe (5) penetrating through the top plate of the treatment tank (1) is communicated with the upper end of the cylindrical separation membrane (4);
a backflow cylinder (6) which is arranged below the guide cylinder (3) and forms an annular cavity with the inner wall of the treatment tank (1), a sludge interception net (15) which is arranged in the backflow cylinder (6) and a horizontal aeration pipe (7) which is arranged in the sludge cavity (103) and is positioned below the backflow cylinder (6), wherein the horizontal aeration pipe (7) is communicated with an aeration mechanism;
the reflux drum (6) comprises an upper conical cover (601) which is opened upwards, a lower conical cover (603) which is opened downwards and a cylindrical cover (602) which is communicated with the upper conical cover (601) and the lower conical cover (603);
the aeration mechanism comprises a vertical pipe (8) vertically communicated with the horizontal aeration pipe (7), the vertical pipe (8) penetrates through the bottom plate of the treatment tank (1) and is communicated with an air inlet pipe (9) through a rotary joint, and the air inlet pipe (9) is communicated with a blower (10) fixedly connected with a base (22); the lower part of the vertical pipe (8) is connected with a driving motor (12) fixedly connected with a base (22) through a transmission gear set (11);
a vertical aerator pipe (18) which is vertically arranged is arranged in an annular cavity formed between the cylindrical separation membrane (4) and the inner wall of the guide cylinder (3), and the vertical aerator pipe (18) is communicated with the vertical pipe (8) through a connecting pipe (19);
the lower end of the sludge interception net (15) is abutted with a scraping plate (17) fixedly connected with the vertical pipe (8).
2. The membrane separation device for sewage treatment according to claim 1, wherein the lower part of the guide cylinder (3) extends into the upper conical cover (601), the inner wall of the upper conical cover (601) is fixedly connected with a guide ring (14) positioned below the edge of the guide cylinder (3), and the guide ring (14) is provided with an annular groove with a semicircular cross section.
3. The membrane separation device for sewage treatment according to claim 1, wherein a conical cylinder (16) which forms an annular cavity with the inner wall of the lower conical cover (603) and is opened at the upper and lower ends is arranged below the scraping plate (17).
4. The membrane separation device for sewage treatment according to claim 1, wherein the sewage inlet pipe (2) is communicated with a liquid inlet pipe (20), the liquid inlet pipe (20) is communicated with a storage tank (21) arranged at the top of the treatment tank (1), and a flocculating agent is filled in the storage tank (21); and a valve is arranged on the liquid inlet pipe (20).
5. The membrane separation device for sewage treatment according to claim 1, wherein the lower end of the treatment tank (1) is communicated with a sludge discharge pipe (23), and a valve is arranged on the sludge discharge pipe (23).
CN202210132564.5A 2022-02-14 2022-02-14 Membrane separation process and device for sewage treatment Active CN114573182B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210132564.5A CN114573182B (en) 2022-02-14 2022-02-14 Membrane separation process and device for sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210132564.5A CN114573182B (en) 2022-02-14 2022-02-14 Membrane separation process and device for sewage treatment

Publications (2)

Publication Number Publication Date
CN114573182A CN114573182A (en) 2022-06-03
CN114573182B true CN114573182B (en) 2023-05-02

Family

ID=81775349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210132564.5A Active CN114573182B (en) 2022-02-14 2022-02-14 Membrane separation process and device for sewage treatment

Country Status (1)

Country Link
CN (1) CN114573182B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115282647B (en) * 2022-08-01 2023-12-26 中国建筑第二工程局有限公司 Sewage sludge separation device for sewage treatment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3578189B2 (en) * 1996-11-13 2004-10-20 栗田工業株式会社 Landfill leachate treatment apparatus and treatment method
JP2005138103A (en) * 2003-10-16 2005-06-02 Toray Ind Inc Separation membrane module and membrane separation device
JP4981726B2 (en) * 2008-03-21 2012-07-25 メタウォーター株式会社 Aggregation-membrane filtration method
CN205760667U (en) * 2016-05-23 2016-12-07 中科瑞阳膜技术（北京）有限公司 A kind of membrane bioreactor and rolled membrane module thereof
CN111484163B (en) * 2020-04-23 2021-01-22 华南理工大学 Energy-saving sewage treatment device
CN213231794U (en) * 2020-06-23 2021-05-18 龙丽君 Sewage treatment environmental protection machinery

Also Published As

Publication number Publication date
CN114573182A (en) 2022-06-03

Similar Documents

Publication Publication Date Title
CN2799526Y (en) Magnetic lightcatalyzed integral sewage regeneration and utilization device
CN101524625A (en) Cleaning method of porous separation membrane
CN114573182B (en) Membrane separation process and device for sewage treatment
CN113651445A (en) Rapid flocculation and separation sewage treatment system and sewage treatment method thereof
CN214734659U (en) High-efficient air supporting deposits device
CN201445837U (en) Sewage-sludge separation device
CN209161639U (en) A kind of kitchen waste water processing recyclable device
CN113336361B (en) Sewage purification treatment device and method
CN216890395U (en) Sewage purification treatment device
CN104310630B (en) Oil field extracted water water cleaning systems and control method thereof
CN116354495A (en) Self-cleaning MBR membrane biological sewage treatment device
CN104150656A (en) Device and method for purifying biologically treated sewage through nano aerated coagulation-stirred flocculation
CN115650518A (en) Energy-concerving and environment-protective chemical production sewage treatment plant
CN110104838A (en) A kind of the AUTOMATIC ZONING separating treatment system and its processing method of oily wastewater
CN110975355A (en) Rotary multi-medium processor
CN215627276U (en) A air supporting deposits all-in-one for sewage treatment
CN214990819U (en) Solid-liquid separation device in fluorine-containing wastewater membrane treatment system
CN114920320A (en) Coke-oven plant waste water tar recovery unit
CN211987254U (en) Rotary multi-medium processor
CN211273651U (en) A device for water oil separating
CN209583891U (en) A kind of urban river water pollution treatment device
CN219885875U (en) Environment-friendly sewage filtering and purifying treatment system
CN216549891U (en) Ultrafiltration membrane purification device for water purification in waterworks
CN216404017U (en) Large-traffic river course water purifies filters integrated device
CN214400073U (en) Tubular membrane system

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