CN114180696A - Sedimentation sludge discharge method of three-sedimentation tank - Google Patents
Sedimentation sludge discharge method of three-sedimentation tank Download PDFInfo
- Publication number
- CN114180696A CN114180696A CN202111621131.8A CN202111621131A CN114180696A CN 114180696 A CN114180696 A CN 114180696A CN 202111621131 A CN202111621131 A CN 202111621131A CN 114180696 A CN114180696 A CN 114180696A
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- sludge
- tank
- siphon
- sedimentation
- barrel
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- 239000010802 sludge Substances 0.000 title claims abstract description 176
- 238000004062 sedimentation Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
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Classifications
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
Abstract
The invention discloses a sedimentation sludge discharge method of a three-sedimentation tank, which provides the three-sedimentation tank, and the three-sedimentation tank comprises a tank body, a PAC addition tank, a PAM addition tank and a sludge tank, wherein the upper end of an inner cylinder body is rotatably provided with a rotating arm, the bottom of the rotating arm is fixedly provided with a siphon groove, and the bottom of the siphon groove is provided with a plurality of siphons which are vertically arranged; the discharged water body of the secondary sedimentation tank enters the tank body for sedimentation, when a sludge pump is started, the sludge in the sludge tank is discharged by the sludge pump, the siphon is utilized, the sludge passes through the siphon, the siphon groove, the sludge barrel, the inner barrel body and the communicating pipe and enters the sludge tank, and finally the sludge is continuously discharged.
Description
Technical Field
The invention relates to a sedimentation sludge discharge method, in particular to a sedimentation sludge discharge method of a three-sedimentation tank.
Background
In the sewage treatment process, sewage enters into three heavy ponds backward through equalizing basin, biochemical pond, one sink the pond and two sink the pond after, sewage has been earlier through one heavy, two heavy deposityiafterwards, can deposit again in three heavy ponds, the mud of depositying this moment is not like one heavy with two heavy thick, and present three heavy ponds mainly include the cell body, rotate on the cell body and install a swivel mount, the lower extreme of swivel mount is fixed with a mud scraper, mud scraper scrapes the mud of the bottom of the pool in three heavy ponds at rotatory in-process to the mud export, then discharge through the mud export. The in-process of mud scraper at rotatory mud of scraping can produce the disturbance to the mud of bottom of the pool, simultaneously, because the mud scraper can not contact with the bottom of the pool completely, lead to the bottom of the pool always to pile a layer mud, especially the bottom of the pool mud of three heavy ponds is more rare, consequently, the disturbance is more serious, has just so influenced the sediment quality in three heavy ponds, probably leads to three heavy pond exhaust water COD to exceed standard.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the sedimentation sludge discharge method of the three-sedimentation tank automatically siphons sludge at the bottom of the three-sedimentation tank into the sludge tank in the sludge discharge process, greatly reduces disturbance to the sludge in the sludge discharge process, and ensures the sludge sedimentation quality of the three-sedimentation tank and the effluent to reach the standard.
In order to solve the technical problems, the technical scheme of the invention is as follows: a sedimentation sludge discharge method of a three-sedimentation tank comprises the following steps:
s1, providing a three-sedimentation tank, which comprises a tank body, wherein a PAC adding tank, a PAM adding tank and a sludge tank are arranged on the outer side of the tank body, the PAC adding tank and the PAM adding tank are communicated with each other, the sludge tank is connected with a sludge outlet pipeline, a sludge outlet pump is arranged on the sludge outlet pipeline, the middle part of the tank body is provided with an outer barrel and an inner barrel which are concentric with each other, the PAM adding tank is communicated with the region between the outer barrel and the inner barrel through a water inlet pipe, the bottom of the tank body is provided with a communicating pipe for communicating the inner cavity of the inner barrel with the inner cavity of the sludge tank, the upper end of the inner barrel is rotatably provided with a rotating arm, the rotating arm is driven by a rotary power device, the bottom of the rotating arm is fixedly provided with a siphon groove, the surrounding city around the siphon groove is used for accommodating sludge, the bottom of the siphon groove is provided with a plurality of siphon pipes vertically arranged, and the bottom of the siphon pipe extends into the sludge region at the bottom of the tank body, the bottom of the siphon groove is lower than the liquid level of the tank body, a sludge barrel is arranged on the side wall of the inner barrel body, the bottom of the sludge barrel is communicated with the inner cavity of the inner barrel body, a siphon connecting pipe is arranged between the siphon groove and the sludge barrel, one end of the siphon connecting pipe is communicated with the bottom of a containing cavity of the siphon groove, and the other end of the siphon connecting pipe extends into the lower end of the sludge barrel;
s2, enabling the water body discharged from the secondary sedimentation tank to enter a PAC adding tank, and adding a PAC medicament into the PAC adding tank;
s3, allowing the water body in the PAC adding pool to flow into the PAM adding pool, and adding a PAM medicament into the PAM adding pool;
s4, the water body enters the space between the outer cylinder and the inner cylinder from the PAM adding pool through the water inlet pipe; and gradually overflows from the upper edge of the outer cylinder body into the pool body;
s5, continuously precipitating the sludge of the water body in the pool body and gradually submerging the sludge at the lower end of the siphon pipe; discharging the water body in the pool body after the water body exceeds a water outlet at the upper end of the pool body;
s6, when the sludge is precipitated to a certain degree, starting a sludge pump, discharging the sludge in the sludge tank by the sludge pump, descending the sludge surface of the sludge tank, siphoning the sludge in the inner cylinder into the sludge tank to be continuously discharged, continuously descending the sludge surface in the inner cylinder, and continuously flowing the sludge in the sludge cylinder into the inner cylinder for supplement; the sludge surface in the sludge cylinder continuously descends; the sludge in the siphon groove is siphoned into the sludge barrel, the sludge surface in the siphon groove continuously descends, and the siphon pipe siphons the sludge at the bottom of the tank into the sludge barrel for continuous supplement to finish continuous sludge discharge.
In a preferable scheme, the sedimentation sludge discharge method further comprises a sludge reflux step, and the sludge discharged by the sludge discharge pump is partially refluxed to the PAC addition tank.
As a preferable scheme, the sludge return flow is 10% of the water inlet flow of the PAC adding pool, and the sludge content of sludge particles in the return sludge is 19000-21000 mg/L.
As a preferable scheme, the rotating arm is of a single-arm structure, one end of the rotating arm is rotatably mounted on the inner cylinder, the other end of the rotating arm is supported on the outer edge of the pool body in a rolling manner, the siphon pipes are uniformly distributed along the length direction of the rotating arm, and the distance between the siphon pipes is 30-40 cm.
As a preferred scheme, the rotating arm is of a double-arm structure, the middle part of the rotating arm is rotatably installed on the middle barrel, two ends of the rotating arm are supported on the outer edge of the tank body in a rolling manner, the rotating arm is provided with two siphon grooves, and siphons on the two siphon grooves are arranged at equal intervals and are staggered with each other.
After the technical scheme is adopted, the invention has the effects that: this sediment sludge discharge method can be at the in-process that the mud pump goes out mud, utilize the sludge siphon of siphoning with the bottom of the pool to the sludge impoundment, thereby realized the continuous discharge of mud, like this, the water loops through and enters into the cell body after adding PAC and PAM and deposits, and the discharge in-process of whole mud is very big has reduced the disturbance of mud, adopt the siphon to carry out the siphon simultaneously, the mud of bottom of the pool all can be inhaled because of the siphon effect, just so avoid the bottom of the pool to remain one deck sludge blanket.
And because the sedimentation sludge discharge method also comprises a sludge backflow step, part of the sludge discharged by the sludge discharge pump flows back to the PAC adding tank, part of PAM in the sludge can be recycled by utilizing the backflow of the sludge, and larger-particle sludge can be brought in, so that the adhesion of the sludge in the water body in the three-sedimentation tank can be accelerated, and the sedimentation rate is improved.
And because the rotating arm is of a double-arm structure, the middle part of the rotating arm is rotatably installed on the middle barrel body, two ends of the rotating arm are supported on the outer edge of the tank body in a rolling manner, the two siphon grooves are arranged on the rotating arm, and the siphons on the two siphon grooves are arranged at equal intervals and staggered with each other, so that in the rotating process of the rotating arm, each siphon tube draws a circle by taking the inner barrel body as the circle center, and because the siphons are staggered with each other, the movement locus circles of the siphons on the two siphon grooves are not overlapped, thereby better covering the whole tank bottom area and better discharging mud.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic view of an alternative swivel connection arrangement of FIG. 3;
in the drawings: 1. a tank body; 2. an inner cylinder; 3. an outer cylinder; 4. a communicating pipe; 5. a PAC addition pool; 6. a PAM addition pool; 7. a sludge tank; 8. a mud return pipeline; 9. a mud pump; 10. a water outlet; 11. a sludge cylinder; 12. a rotating arm; 13. a siphon tank; 14. a siphon tube; 15. a water inlet pipe; 16. a siphon connecting pipe; 17. a pipe clamp; 18. a flat bearing; 19. a rotating frame.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
As shown in fig. 1 to 4, a method for discharging sludge through sedimentation in a three-sedimentation tank comprises the following steps:
s1, providing a three-sedimentation tank, comprising a tank body 1, wherein a PAC adding tank 5, a PAM adding tank 6 and a sludge tank 7 are arranged on the outer side of the tank body 1, the PAC adding tank 5 and the PAM adding tank 6 are communicated with each other, the sludge tank 7 is connected with a sludge outlet pipeline, a sludge outlet pump 9 is arranged on the sludge outlet pipeline, an outer barrel body 3 and an inner barrel body 2 which are concentric with each other are arranged in the middle of the tank body 1, the PAM adding tank 6 is communicated with the region between the outer barrel body 3 and the inner barrel body 2 through a water inlet pipe 15, a communicating pipe 4 for communicating the inner cavity of the inner barrel body 2 with the inner cavity of the sludge tank 7 is arranged at the bottom of the tank body 1, a rotating arm 12 is rotatably arranged at the upper end of the inner barrel body 2, the rotating arm 12 is driven by a rotary power device, a siphon groove 13 is fixedly arranged at the bottom of the rotating arm 12, sludge accommodating cavities are surrounded by the siphon groove 13, a plurality of siphons 14 which are vertically arranged at the bottom of the siphon groove 13, the bottom of the siphon pipe 14 extends into a sludge area at the bottom of the tank body 1, the bottom of the siphon groove 13 is lower than the liquid level of the tank body 1, a sludge barrel 11 is arranged on the side wall of the inner barrel body 2, the bottom of the sludge barrel 11 is communicated with the inner cavity of the inner barrel body 2, a siphon connecting pipe 16 is arranged between the siphon groove 13 and the sludge barrel 11, one end of the siphon connecting pipe 16 is communicated with the bottom of a containing cavity of the siphon groove 13, and the other end of the siphon connecting pipe 16 extends into the lower end of the sludge barrel 11;
s2, enabling the water body discharged from the secondary sedimentation tank to enter a PAC adding tank 5, and adding a PAC medicament into the PAC adding tank 5;
s3, allowing the water body in the PAC adding pool 5 to flow into a PAM adding pool 6, and adding a PAM medicament into the PAM adding pool 6;
s4, the water body enters the space between the outer cylinder 3 and the inner cylinder 2 from the PAM adding pool 6 through the water inlet pipe 15; and gradually overflows from the upper edge of the outer cylinder 3 into the pool body 1;
s5, continuously precipitating the sludge of the water body in the pool body 1 and gradually submerging the sludge at the lower end of the siphon 14; when the water in the pool body 1 exceeds a water outlet 10 at the upper end of the pool body 1, the water is discharged;
s6, when the sludge is precipitated to a certain degree, the sludge pump 9 is started, the sludge in the sludge tank 7 is discharged by the sludge pump 9, the sludge surface of the sludge tank 7 descends, the sludge in the inner cylinder 2 is siphoned into the sludge tank 7 to be continuously discharged, the sludge surface in the inner cylinder 2 descends continuously, and the sludge in the sludge cylinder 11 continuously flows into the inner cylinder 2 to be supplemented; the sludge surface in the sludge cylinder 11 continuously descends; the sludge in the siphon groove 13 is siphoned into the sludge barrel 11, the sludge surface in the siphon groove 13 continuously descends, and the siphon pipe 14 siphons the sludge at the bottom of the tank into the sludge tank for continuous supplement, so that continuous sludge discharge is completed.
In this embodiment, the sedimentation sludge discharge method further includes a sludge reflux step, in which a part of the sludge discharged from the sludge discharge pump 9 is refluxed into the PAC adding tank 5, and an output end of the sludge discharge pump 9 is communicated with the PAC adding tank 5 through a sludge return pipeline 8. The sludge reflux amount is 10 percent of the water inflow of the PAC adding pool 5, and the sludge content of sludge particles in the reflux sludge is 19000-21000 mg/L.
In this embodiment, the rotating arm 12 is a single-arm structure, one end of the rotating arm 12 is rotatably mounted on the inner cylinder 2, the other end of the rotating arm is supported on the outer edge of the tank body 1 in a rolling manner, the siphons 14 are uniformly distributed along the length direction of the rotating arm 12, and the distance between the siphons 14 is 30-40 cm. The rotary power device is a motor, and the motor drives the rotating arm 12 to rotate through a gear or a chain wheel. Certainly, the rotating arm 12 can also be a double-arm structure, the middle part of the rotating arm 12 is rotatably installed on the middle barrel, two ends of the rotating arm are supported on the outer edge of the tank body 1 in a rolling manner, the rotating arm 12 is provided with two siphon grooves 13, and siphon pipes 14 on the two siphon grooves 13 are arranged at equal intervals and are staggered with each other.
As shown in fig. 2 and 3, the other end of the siphon connecting pipe 16 extends into the lower end of the sludge cylinder 11 and is immersed in the sludge layer, the sludge cylinder 11 and the inner cylinder 2 are concentrically arranged, and a rotary connecting structure for fixing the siphon connecting pipe 16 is rotatably installed at the upper end of the sludge cylinder 11.
As shown in fig. 2, the rotary connection structure includes a flat bearing 18 mounted on the sludge drum 11, a pipe clamp 17 for fixing the siphon connection pipe 16 is mounted on the flat bearing 18, and the pipe clamp 17 can rotate along with the flat bearing 18, so that the positions of the siphon connection pipe 16 and the siphon groove 13 are not changed when the rotary arm 12 rotates again.
The rotary connection structure can be other structures, as shown in fig. 3, and includes a rotary frame 19 rotatably mounted on the sludge 3, and a pipe clamp 17 for fixing the siphon connection pipe 16 is mounted on the rotary frame 19.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (5)
1. A sedimentation sludge discharge method of a three-sedimentation tank is characterized in that: the method comprises the following steps:
s1, providing a three-sedimentation tank, which comprises a tank body, wherein a PAC adding tank, a PAM adding tank and a sludge tank are arranged on the outer side of the tank body, the PAC adding tank and the PAM adding tank are communicated with each other, the sludge tank is connected with a sludge outlet pipeline, a sludge outlet pump is arranged on the sludge outlet pipeline, the middle part of the tank body is provided with an outer barrel and an inner barrel which are concentric with each other, the PAM adding tank is communicated with the region between the outer barrel and the inner barrel through a water inlet pipe, the bottom of the tank body is provided with a communicating pipe for communicating the inner cavity of the inner barrel with the inner cavity of the sludge tank, the upper end of the inner barrel is rotatably provided with a rotating arm, the rotating arm is driven by a rotary power device, the bottom of the rotating arm is fixedly provided with a siphon groove, the surrounding city around the siphon groove is used for accommodating sludge, the bottom of the siphon groove is provided with a plurality of siphon pipes vertically arranged, and the bottom of the siphon pipe extends into the sludge region at the bottom of the tank body, the bottom of the siphon groove is lower than the liquid level of the tank body, a sludge barrel is arranged on the side wall of the inner barrel body, the bottom of the sludge barrel is communicated with the inner cavity of the inner barrel body, a siphon connecting pipe is arranged between the siphon groove and the sludge barrel, one end of the siphon connecting pipe is communicated with the bottom of a containing cavity of the siphon groove, and the other end of the siphon connecting pipe extends into the lower end of the sludge barrel;
s2, enabling the water body discharged from the secondary sedimentation tank to enter a PAC adding tank, and adding a PAC medicament into the PAC adding tank;
s3, allowing the water body in the PAC adding pool to flow into the PAM adding pool, and adding a PAM medicament into the PAM adding pool;
s4, the water body enters the space between the outer cylinder and the inner cylinder from the PAM adding pool through the water inlet pipe; and gradually overflows from the upper edge of the outer cylinder body into the pool body;
s5, continuously precipitating the sludge of the water body in the pool body and gradually submerging the sludge at the lower end of the siphon pipe; discharging the water body in the pool body after the water body exceeds a water outlet at the upper end of the pool body;
s6, when the sludge is precipitated to a certain degree, starting a sludge pump, discharging the sludge in the sludge tank by the sludge pump, descending the sludge surface of the sludge tank, siphoning the sludge in the inner cylinder into the sludge tank to be continuously discharged, continuously descending the sludge surface in the inner cylinder, and continuously flowing the sludge in the sludge cylinder into the inner cylinder for supplement; the sludge surface in the sludge cylinder continuously descends; the sludge in the siphon groove is siphoned into the sludge barrel, the sludge surface in the siphon groove continuously descends, and the siphon pipe siphons the sludge at the bottom of the tank into the sludge barrel for continuous supplement to finish continuous sludge discharge.
2. The method for discharging sludge through sedimentation in a three-sedimentation tank as claimed in claim 1, wherein: the sedimentation sludge discharge method also comprises a sludge reflux step, wherein part of the sludge discharged by the sludge discharge pump is refluxed into the PAC addition pool.
3. The method for discharging sludge through sedimentation in a three-sedimentation tank as claimed in claim 2, wherein: the sludge reflux amount is 10 percent of the water inlet amount of the PAC adding pool, and the sludge content of sludge particles in the reflux sludge is 19000-21000 mg/L.
4. A sedimentation sludge discharge method of a three-sedimentation tank according to claim 3, characterized in that: the rotating arm is of a single-arm structure, one end of the rotating arm is rotatably installed on the inner barrel, the other end of the rotating arm is supported on the outer edge of the tank body in a rolling mode, the siphon pipes are evenly distributed along the length direction of the rotating arm, and the distance between the siphon pipes is 30-40 cm.
5. A sedimentation sludge discharge method of a three-sedimentation tank according to claim 3, characterized in that: the rotary arm is of a double-arm structure, the middle of the rotary arm is rotatably installed on the middle barrel, two ends of the rotary arm are supported on the outer edge of the tank body in a rolling mode, the rotary arm is provided with two siphon grooves, and siphons on the two siphon grooves are arranged at equal intervals and are staggered mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621131.8A CN114180696B (en) | 2021-12-28 | 2021-12-28 | Sediment sludge discharge method of triple sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621131.8A CN114180696B (en) | 2021-12-28 | 2021-12-28 | Sediment sludge discharge method of triple sedimentation tank |
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| CN114180696A true CN114180696A (en) | 2022-03-15 |
| CN114180696B CN114180696B (en) | 2023-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006029389A2 (en) * | 2004-09-09 | 2006-03-16 | Diversa Corporation | Tryptophan-processing enzymes, nucleic acids encoding them and methods for making and using them |
| CN101239259A (en) * | 2008-03-14 | 2008-08-13 | 上海市政工程设计研究总院 | Sludge return sedimentation pool improved from pipe chute sedimentation pool and improving method thereby |
| CN102515433A (en) * | 2011-12-14 | 2012-06-27 | 山东齐鲁石化工程有限公司 | Synthetic rubber wastewater treatment process |
| KR20130102870A (en) * | 2012-03-08 | 2013-09-23 | 주식회사성우 | Suction-type sludge collecting device |
| CN204170462U (en) * | 2014-10-23 | 2015-02-25 | 浦华环保有限公司 | A kind of circular settling tank |
| CN107892445A (en) * | 2017-12-18 | 2018-04-10 | 张家港市清泉水处理有限公司 | A kind of CMC waste water evaporated mother liquor processing system and processing method |
-
2021
- 2021-12-28 CN CN202111621131.8A patent/CN114180696B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006029389A2 (en) * | 2004-09-09 | 2006-03-16 | Diversa Corporation | Tryptophan-processing enzymes, nucleic acids encoding them and methods for making and using them |
| CN101239259A (en) * | 2008-03-14 | 2008-08-13 | 上海市政工程设计研究总院 | Sludge return sedimentation pool improved from pipe chute sedimentation pool and improving method thereby |
| CN102515433A (en) * | 2011-12-14 | 2012-06-27 | 山东齐鲁石化工程有限公司 | Synthetic rubber wastewater treatment process |
| KR20130102870A (en) * | 2012-03-08 | 2013-09-23 | 주식회사성우 | Suction-type sludge collecting device |
| CN204170462U (en) * | 2014-10-23 | 2015-02-25 | 浦华环保有限公司 | A kind of circular settling tank |
| CN107892445A (en) * | 2017-12-18 | 2018-04-10 | 张家港市清泉水处理有限公司 | A kind of CMC waste water evaporated mother liquor processing system and processing method |
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| CN114180696B (en) | 2023-11-24 |
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