CN114573182A - Membrane separation process and device for sewage treatment - Google Patents
Membrane separation process and device for sewage treatment Download PDFInfo
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- CN114573182A CN114573182A CN202210132564.5A CN202210132564A CN114573182A CN 114573182 A CN114573182 A CN 114573182A CN 202210132564 A CN202210132564 A CN 202210132564A CN 114573182 A CN114573182 A CN 114573182A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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 sedimentation, aeration decomposition, sewage circulation sedimentation and sludge discharge. According to the invention, 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 are arranged, so that sewage forms rotational flow after entering the treatment tank, gas generated by the aeration pipe pushes the sewage to move upwards into the guide cylinder, the sewage flows up and down in the treatment tank in a circulating manner, the sewage passing through the sludge interception net flows through the cylindrical separation membrane from bottom to top, the sludge content in the sewage contacting with the cylindrical separation membrane is reduced, meanwhile, the sludge adhesion between the sludge and the cylindrical separation membrane is reduced by the sewage flowing in parallel with the cylindrical separation membrane, the cleanness of the surface of the cylindrical separation membrane is further ensured, the passing rate is ensured, the treatment process is simple, and the maintenance period is long.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a membrane separation process and a membrane separation device for sewage treatment.
Background
In the sewage treatment process, the membrane treatment process is adopted, various impurities in 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, the traditional separation membrane for sewage treatment is easily blocked by sludge in the using process, 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 overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
a membrane separation process for sewage treatment comprises the following steps:
s1, adding a flocculating agent into the sewage, and then precipitating the sewage in a centrifugal precipitation mode;
s2, aerating the precipitated sewage, performing biochemical reaction to decompose organic impurities, circularly contacting the precipitated sewage 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 tapered cavity which is wide at the top and narrow at the bottom, a sludge cavity with a tapered cavity which is narrow at the top and wide at the bottom and a columnar communicating cavity for communicating the mixing cavity and the sludge cavity are arranged in the treatment tank;
the top of the guide cylinder is fixedly connected with the top plate of the treatment tank through a vertical connecting rod, and the sewage inlet pipe 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 suspended in the middle of the guide shell and forms an annular cavity with the inner wall of the guide shell, and the upper end of the cylindrical separation membrane is communicated with a clear water pipe which penetrates through a top plate of the treatment tank;
the device comprises a reflux cylinder, a sludge interception net and a horizontal aeration pipe, wherein an annular cavity is formed between the reflux cylinder, the sludge interception net and the horizontal aeration pipe are arranged below the reflux cylinder, the reflux cylinder is arranged below the guide cylinder and the inner wall of the treatment tank, the sludge interception net is arranged in the reflux cylinder, the horizontal aeration pipe is arranged in the sludge cavity and is positioned below the reflux cylinder, and the horizontal aeration pipe is communicated with an aeration mechanism.
Preferably, the backflow cylinder comprises an upper conical cover which is opened upwards, a lower conical cover which is opened downwards and a cylinder cover which is communicated with the upper conical cover and the lower conical cover.
Preferably, the lower part of the guide shell 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 shell, 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 an air 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 vertically arranged vertical aeration pipe 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 intercepting net is abutted with a scraper fixedly connected with the vertical pipe.
Preferably, a conical cylinder which forms an annular cavity with the inner wall of the lower conical cover and is provided with openings at the upper end and the lower end is arranged below the scraper.
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 a flocculating agent 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 sludge discharge pipe, and a valve is arranged on the sludge discharge pipe.
After adopting the structure, compared with the prior art, the invention has the following advantages:
the treatment tank is provided with the mixing cavity, the sludge cavity, the sewage inlet pipe, the sludge interception net, the guide cylinder, the cylindrical separation membrane, the guide cylinder and the horizontal aeration pipe, wherein the sewage inlet pipe is tangentially communicated with the mixing cavity, the guide cylinder is arranged in the mixing cavity, the cylindrical separation membrane is arranged in the guide cylinder, the guide cylinder and the horizontal aeration pipe are arranged in the guide cylinder, so that sewage forms a rotational flow after entering the treatment tank, gas generated by the aeration pipe pushes the sewage to move upwards into the guide cylinder, the sewage flows up and down in the treatment tank in a circulating manner, the sewage passing through the sludge interception net flows through the cylindrical separation membrane from bottom to top, the sludge content in the sewage contacting with the cylindrical separation membrane is reduced, meanwhile, the sludge adhesion between the sewage flowing in parallel with the cylindrical separation membrane and the cylindrical separation membrane is reduced, the surface cleanness of the cylindrical separation membrane is further ensured, and the passing rate is ensured; the membrane treatment process has the advantages of long maintenance period, simple process and higher treatment efficiency.
According to the invention, the vertical aeration pipe which does circular motion 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 to flush the surface of the cylindrical separation membrane, so that the water permeability of the cylindrical separation membrane is improved, and the membrane separation efficiency is improved.
Drawings
Fig. 1 is a perspective view of a front side view of a membrane separation device for sewage treatment.
Fig. 2 is a perspective view of a rear view of the membrane separation device for sewage treatment.
Fig. 3 is a schematic sectional structure view of the membrane separation device for sewage treatment.
FIG. 4 is a schematic perspective view of an aeration mechanism in the membrane separation apparatus for sewage treatment.
FIG. 5 is a schematic view of an assembly structure of a guide cylinder, a sludge interception net, a guide ring and a conical cover in the membrane separation device for sewage treatment.
In the figure: 1. a treatment tank; 101. a mixing chamber; 102. a communicating cavity; 103. a sludge chamber; 2. a sewage inlet pipe; 3. a draft tube; 4. a cylindrical separation membrane; 5. a clear water pipe; 6. a reflux drum; 601. an upper conical cover; 602. a cylindrical cover; 603. a lower conical cover; 7. a horizontal aeration pipe; 8. a vertical tube; 9. an air inlet pipe; 10. a blower; 11. a drive gear set; 12. a drive motor; 13. a horizontal connecting rod; 14. a flow guide ring; 15. a sludge retention net; 16. a tapered barrel; 17. a squeegee; 18. a vertical aeration pipe; 19. a connecting pipe; 20. a liquid inlet pipe; 21. a storage tank; 22. a base; 23. a sludge discharge pipe.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. 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 an embodiment of the present invention, a membrane separation process for sewage treatment includes the following steps:
s1, adding a flocculating agent into the sewage, and then precipitating the sewage in a centrifugal precipitation mode;
s2, aerating the precipitated sewage, performing biochemical reaction to decompose organic impurities, circularly contacting the precipitated sewage with a separation membrane, performing osmotic filtration, and discharging filtered clear water;
s3, cleaning the precipitated sludge.
Specifically, through adding flocculating agent and centrifugal sedimentation to mud, purify waste water fast, then carry out the organic matter through activated sludge through the aeration and decompose the purification, then through membrane filtration, have better purifying effect, avoid mud to corrode the 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 tapered cavity with a wide upper part and a narrow lower part, a sludge cavity 103 with a tapered cavity with a narrow upper part and a wide lower part and a columnar communicating cavity 102 for communicating the mixing cavity 101 and the sludge cavity 103 are arranged in the treatment tank 1;
the guide cylinder 3 is arranged in the mixing cavity 101, the top of the guide cylinder is fixedly connected with the top plate of the treatment tank 1 through a vertical connecting rod, and the sewage inlet pipe 2 is tangentially communicated with the mixing cavity 101; the guide shell 3 is a cylinder with openings at the upper end and the lower end;
a cylindrical separation membrane 4 which is suspended and arranged in the middle of the guide shell 3 and forms an annular cavity with the inner wall of the guide shell 3, and the upper end of the cylindrical separation membrane 4 is communicated with a clear water pipe 5 which penetrates through the top plate of the treatment tank 1;
the device comprises a reflux cylinder 6, a sludge interception net 15 and a horizontal aeration pipe 7, wherein an annular cavity is formed between the reflux cylinder 6, the sludge interception net 15 and the horizontal aeration pipe 7, the reflux cylinder 6 is arranged below the guide cylinder 3 and the inner wall of the treatment tank 1, the sludge interception net is arranged in the reflux cylinder 6, the horizontal aeration pipe 7 is arranged in the sludge cavity 103 and is positioned below the reflux cylinder 6, and the horizontal aeration pipe 7 is communicated with an aeration mechanism.
Specifically, sewage enters into 2 tangents through sewage and enters into in the hybrid chamber 101, sewage forms the whirl under draft tube 3's effect in hybrid chamber 101, make impurity in the sewage in the gathering of hybrid chamber 101 inner wall department, the gathering and the decline of sediment with higher speed, and simultaneously, the gaseous promotion rivers that horizontal aeration pipe 7 explodes flow through draft tube 3 from the bottom up, and then make sewage circulate in 1 interior mountain of treatment tank, make sewage and 4 parallel flow of tube-shape separating membrane, then avoid mud to glue on tube-shape separating membrane 4, simultaneously under the effect that net 15 was held back to mud, avoid mud to enter into with tube-shape separating membrane 4 contact in draft tube 3 along with the sewage that from the bottom up flows, and the protection effect is improved.
In addition, sewage which circularly flows up and down accelerates centrifugal aggregation and multiple separation and sedimentation of sediment, and the purification effect is improved.
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 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.
Through opening the valve on the feed liquor pipe 20 for the flocculating agent flows into in the sewage advances the pipe 2 from storage jar 21 and forms the whirl along with sewage and mixes at mixing chamber 101, improves and mixes effect and efficiency, and the formation 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 mounted on the sludge discharge pipe 23.
In another embodiment of the present invention, the reflow cylinder 6 includes an upper conical cover 601 opened upward, a lower conical cover 603 opened downward, and a cylinder cover 602 communicating the upper conical cover 601 and the lower conical cover 603.
Specifically, a rivers that the backward flow section of thick bamboo 6 will downward whirl sediment separates with the rivers that from the bottom up flows, mutual noninterference, realizes upper and lower circulation flow, in addition, it needs to explain that backward flow section of thick bamboo 6 passes through horizontal connecting rod 13 and 1 inner wall fixed connection of treatment tank.
In this embodiment, the lower portion of the draft tube 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 draft tube 3, and the guide ring 14 is provided with an annular groove with a semicircular cross section.
Specifically, the sediment moves downwards along the inner wall of the mixing cavity 101 under the action of the centrifugal force of the sewage rotational flow, the distance between the sewage and the sediment therein is large at the position of the upper conical cover 601, at the moment, the amount of the sediment and the sludge in the sewage around the guide cylinder 3 is small, the sediment and the sludge directly enter the upper conical cover 601 and turn to the guide cylinder 3 under the action of the guide ring 14, the separation and the turning of the sewage 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, air blower 10 pours into the air into vertical pipe 8, and driving motor 12 drives vertical pipe 8 through drive gear group 11 and rotates, and vertical pipe 8 drives horizontal aeration pipe 7 and rotates, improves the gas diffusion effect, promotes bacterium and oxygen contact in the activated sludge, promotes the microorganism and breeds, and the decomposition of organic matter is with higher speed guaranteed purifying effect.
In another embodiment of the invention, a vertical aeration pipe 18 is vertically arranged in an annular cavity formed between the cylindrical separation membrane 4 and the inner wall of the guide shell 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 aeration pipe 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 manner, so that the sludge adhesion is avoided, and meanwhile, the water flow is promoted to move upwards.
In this embodiment, the lower end of the sludge intercepting net 15 is abutted with a scraper 17 fixedly connected with the vertical pipe 8.
Specifically, the vertical pipe 8 drives the scraper 17 to rotate, and the scraper 17 intercepts the mud and rotates the clearance, avoids mud to intercept net 15 and blocks up, guarantees that mud intercepts the effect.
In this embodiment, a conical cylinder 16 which forms an annular cavity with the inner wall of the lower conical cover 603 and has an open upper end and a open lower end is arranged below the scraper 17.
Specifically, the conical cylinder 16 is matched with the scraper 17, so that the sludge trapped by the sludge trapping net 15 moves into an annular cavity between the conical cylinder 16 and the lower conical cover 603 under the action of centrifugal thrust of the scraper 17, and secondary sedimentation of the sludge is accelerated.
The working principle is as follows: sewage tangentially enters the mixing cavity 101 through the sewage inlet pipe 2, and forms 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 precipitates are accelerated, meanwhile, the gas exploded by the horizontal aeration pipe 7 pushes water flow to flow through the guide cylinder 3 from bottom to top, and further the sewage circulates in the treatment tank 1 from bottom to top, so that the sewage flows in parallel with the cylindrical separation membrane 4, the sludge is prevented from being adhered to the cylindrical separation membrane 4, and meanwhile, under the action of the sludge retaining net 15, the sludge is prevented from entering the guide cylinder 3 along with the sewage flowing from bottom to top and contacting with the cylindrical separation membrane 4;
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, gas is sprayed out through the vertical aeration pipe 18 to wash out 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 merely 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. But all changes which come within the scope of the invention are intended to be embraced therein.
Claims (10)
1. A membrane separation process for sewage treatment is characterized by comprising the following steps:
s1, adding a flocculating agent into the sewage, and then precipitating the sewage in a centrifugal precipitation mode;
s2, aerating the precipitated sewage, performing biochemical reaction to decompose organic impurities, circularly contacting the precipitated sewage with a separation membrane, performing osmotic filtration, and discharging filtered clear water;
s3, cleaning the precipitated sludge.
2. A membrane separation device for sewage treatment, characterized by 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 tapered cavity which is wide at the top and narrow at the bottom, a sludge cavity (103) with a tapered cavity which is wide at the top and narrow at the bottom and a columnar communicating cavity (102) which communicates the mixing cavity (101) and the sludge cavity (103) are arranged in the treatment tank (1);
the guide shell (3) is arranged in the mixing cavity (101) and the top of the guide shell is fixedly connected with the top plate of the treatment tank (1) through a vertical connecting rod, and the sewage inlet pipe (2) is tangentially communicated with the mixing cavity (101); the guide shell (3) is a cylinder with openings at the upper end and the lower end;
a cylindrical separation membrane (4) which is suspended in the middle of the guide cylinder (3) and forms an annular cavity with the inner wall of the guide cylinder (3), wherein the upper end of the cylindrical separation membrane (4) is communicated with a clear water pipe (5) which penetrates through the top plate of the treatment tank (1);
the device comprises a reflux cylinder (6) which is arranged below the guide cylinder (3) and is provided with an annular cavity with the inner wall of the treatment tank (1), a sludge interception net (15) arranged in the reflux cylinder (6) and a horizontal aeration pipe (7) arranged in the sludge cavity (103) and positioned below the reflux cylinder (6), wherein the horizontal aeration pipe (7) is communicated with an aeration mechanism.
3. A membrane separation device for sewage treatment according to claim 1, wherein the reflux drum (6) comprises an upper conical cover (601) opened upward, a lower conical cover (603) opened downward and a cylindrical cover (602) communicating the upper conical cover (601) and the lower conical cover (603).
4. A membrane separation device for sewage treatment according to claim 1, wherein the lower part of the draft tube (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 draft tube (3), and the guide ring (14) is provided with an annular groove with a semicircular section.
5. A membrane separation device for sewage treatment according to claim 3, wherein 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).
6. A membrane separation device for sewage treatment according to claim 5, characterized in that a vertical aeration pipe (18) is vertically arranged in an annular cavity formed between the cylindrical separation membrane (4) and the inner wall of the guide shell (3), and the vertical aeration pipe (18) is communicated with the vertical pipe (8) through a connecting pipe (19).
7. A membrane separation device for sewage treatment according to claim 6, characterized in that the lower end of the sludge interception net (15) is abutted with a scraper (17) fixedly connected with the vertical pipe (8).
8. A membrane separation device for sewage treatment according to claim 7, characterized in that a conical cylinder (16) which forms an annular cavity with the inner wall of the lower conical cover (603) and is open at the upper end and the lower end is arranged below the scraper (17).
9. 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).
10. A 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).
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 |
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| Publication Number | Publication Date |
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| CN114573182A true CN114573182A (en) | 2022-06-03 |
| CN114573182B CN114573182B (en) | 2023-05-02 |
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| CN202210132564.5A Active CN114573182B (en) | 2022-02-14 | 2022-02-14 | Membrane separation process and device for sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282647A (en) * | 2022-08-01 | 2022-11-04 | 中国建筑第二工程局有限公司 | Sewage sludge separation device for sewage treatment |
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| JPH10137779A (en) * | 1996-11-13 | 1998-05-26 | Kurita Water Ind Ltd | Treating device for leached water from reclamation |
| JP2005138103A (en) * | 2003-10-16 | 2005-06-02 | Toray Ind Inc | Separation membrane module and membrane separation device |
| JP2009226285A (en) * | 2008-03-21 | 2009-10-08 | Metawater Co Ltd | Flocculation-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 |
| CN111484163A (en) * | 2020-04-23 | 2020-08-04 | 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 |
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2022
- 2022-02-14 CN CN202210132564.5A patent/CN114573182B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137779A (en) * | 1996-11-13 | 1998-05-26 | Kurita Water Ind Ltd | Treating device for leached water from reclamation |
| JP2005138103A (en) * | 2003-10-16 | 2005-06-02 | Toray Ind Inc | Separation membrane module and membrane separation device |
| JP2009226285A (en) * | 2008-03-21 | 2009-10-08 | Metawater Co Ltd | Flocculation-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 |
| CN111484163A (en) * | 2020-04-23 | 2020-08-04 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282647A (en) * | 2022-08-01 | 2022-11-04 | 中国建筑第二工程局有限公司 | Sewage sludge separation device for sewage treatment |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN114573182B (en) | 2023-05-02 |
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