CN203545862U - Chemical phosphorus removal and precipitation separation device for sludge - Google Patents
Chemical phosphorus removal and precipitation separation device for sludge Download PDFInfo
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- CN203545862U CN203545862U CN201320591886.2U CN201320591886U CN203545862U CN 203545862 U CN203545862 U CN 203545862U CN 201320591886 U CN201320591886 U CN 201320591886U CN 203545862 U CN203545862 U CN 203545862U
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- mud
- sludge
- flocculation
- separation device
- coagulation
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Abstract
The utility model discloses a chemical phosphorus removal and precipitation separation device for sludge. The device disclosed by the utility model comprises a coagulation reaction pool, a flocculation reaction pool, a settling pond and a clean water pool sequentially connected, wherein the coagulation reaction pool and the flocculation reaction pool are connected through a sludge connecting pipe, a sludge discharge pipe is arranged at the bottom of the clarification pool and is connected with a sludge connecting pipe through a pipeline, and a sludge backflow pump is arranged on the pipeline between the sludge discharge pipe and the sludge connecting pipe. According to the device by adopting mechanical coagulation and flocculation, agents and sewage are more quickly and fully mixed, so that the effect of chemical phosphorus removal by coagulation and flocculation is enhanced. Meanwhile, the agents are saved by circularly returning sludge, so that the phosphorus removal and precipitating efficiency is improved.
Description
Technical field
The utility model relates to mud dephosphorization processing, is specifically related to a kind of mud chemical dephosphorization precipitation separation device.
Background technology
While adopting activated sludge process in sewage treatment process, sludge reflux is the most important link in sewage treatment process.Sludge reflux in settling tank need to be back to biological tank, but because phosphorus content is too high, directly affect sewage biological treatment system phosphor-removing effect, the phosphorus of removing is got back to again in biological tank; Also have the moisture too high quantity of reflux of mud to increase, reduce active sludge content in biological tank.Therefore be necessary mud to carry out chemical dephosphorization and precipitate and separate operation.
Utility model content
The purpose of this utility model is to provide a kind of device that returned sluge can be carried out to chemical dephosphorization and precipitate and separate, improves the phosphor-removing effect of sewage biological treatment system.
The purpose of this utility model is achieved through the following technical solutions: a kind of mud chemical dephosphorization precipitation separation device comprises the coagulation reaction tank, flocculation tank, settling pond and the clean water basin composition that connect successively, between described coagulation reaction tank and flocculation tank, with mud pipe connecting, be connected, the bottom of described settling pond is provided with mud discharging pipe, and mud discharging pipe is connected with mud pipe connecting by pipeline, and on the pipeline between mud discharging pipe and mud pipe connecting, sludge reflux pump is set.
Described mud pipe connecting is provided with pipe connecting blow-down pipe.Pipe connecting blow-down pipe effectively prevents that mud pipe connecting from stopping up.
Coagulation stirrer is installed in described coagulation reaction tank.
In described flocculation tank, flocculation stirring machine is installed.
Further, in described settling pond, mud scraper is installed, settling pond feed-water end is provided with scum silica frost bucket.
The utility model compared with prior art has the following advantages and beneficial effect: this device has replaced waterpower coagulation, waterpower to flocculate by Mechanical coagulation, machinery flocculation, the mixing that makes medicament and sewage due to mechanical stirring more fast, more abundant, therefore strengthened the effect of coagulation chemical dephosphorization, flocculation, also saved medicament simultaneously, capacity of resisting impact load is strong, and the clearance of suspended substance is high.Employing sludge circulation refluxes, and can reduce medicament and use, and improves dephosphorization and deposition efficiency.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is floor map of the present utility model.
In accompanying drawing, corresponding Reference numeral is: 1, coagulation reaction tank, 2, flocculation tank, 3, settling pond, 4, coagulating agent adding set, 5, coagulation stirrer, 6, flocculant adding apparatus, 7, mud pipe connecting, 8, cylinder flocculation stirring machine, 9, scum silica frost bucket, 10, support, 11, mud scraper, 12, supernatant liquor receiving tank, 13, clean water basin, 14, sludge reflux pump, 15, mud discharging pipe, 16, water inlet pipe, 17, rising pipe, 18, pipe connecting blow-down pipe.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment: as shown in Figures 1 and 2, the utility model comprises that the coagulation reaction tank 1, flocculation tank 2, settling pond 3 and the clean water basin 13 that connect successively form, between described coagulation reaction tank 1 and flocculation tank 2, with mud pipe connecting 7, be connected, the bottom of described settling pond 3 is provided with mud discharging pipe 15, and mud discharging pipe 15 is connected with mud pipe connecting 7 by pipeline, and on the pipeline between mud discharging pipe 15 and mud pipe connecting 7, sludge reflux pump 14 is set.
Described mud pipe connecting 7 is provided with pipe connecting blow-down pipe 18.Pipe connecting blow-down pipe 18 effectively prevents that mud pipe connecting 7 from stopping up.
In described coagulation reaction tank 1, coagulation stirrer 5 is installed.
In described flocculation tank 2, flocculation stirring machine 8 is installed.
Further, in described settling pond 3, mud scraper 11 is installed, settling pond 3 feed-water ends are provided with scum silica frost bucket 9.
Principle of work of the present utility model is: the mud of pending chemical dephosphorization enters in coagulation reaction tank 1 by water inlet pipe 16, coagulating agent adding set 4 adds chemical dephosphorization medicament, such as metal-salt etc., under the effect of coagulation stirrer 5 with sewage in suspended substance short mix, by in and the negative charge of particle surface make particle " de-steady ", form little flco and then enter flocculation tank 2.Phosphorus in former water and coagulating agent reaction formation phosphoric acid salt reach the object of chemical dephosphorization simultaneously.Flocculation agent impels the little flco entering to form larger flco by absorption, electrically neutralization and mutual bridging action, the effect of slow stirrer not only can fully mix medicament and flco but also can not destroy established big flocculating body, and the mud of settling pond 3 bottoms is entered flocculation tank 2 from mud pipe connecting 7 by mud discharging pipe 15 as " seed ".Scum silica frost bucket 9 is collected the scum silica frost on surface, pond after flocculation reaction.After flocculation, water outlet enters settling pond 3 upward flows to catchment area, top, and particle moves downward under action of gravity.Grizzly bar on mud scraper 11 can improve mud concentrated effect, and the mud scraper 11 of rotation blows into collection mud pit, center continuously mud at a slow speed.Thickened sludge is according to certain setting program or by mud level meter, controlled to reach the sludge concentration of an optimization, is then discharged to discontinuously sludge treating system.The bottom of settling pond 3 is provided with mud discharging pipe 15, and mud discharging pipe 15 is connected with mud pipe connecting 7 by pipeline, and on the pipeline between mud discharging pipe 15 and mud pipe connecting 7, sludge reflux pump 14 is set, employing sludge circulation refluxes, can reduce medicament and use, improve dephosphorization and deposition efficiency.
As mentioned above, can well realize the utility model.
Claims (5)
1. a mud chemical dephosphorization precipitation separation device, it is characterized in that: comprise the coagulation reaction tank (1) connecting successively, flocculation tank (2), settling pond (3) and clean water basin (13) composition, between described coagulation reaction tank (1) and flocculation tank (2), with mud pipe connecting (7), be connected, the bottom of described settling pond (3) is provided with mud discharging pipe (15), and mud discharging pipe (15) is connected with mud pipe connecting (7) by pipeline, and on the pipeline between mud discharging pipe (15) and mud pipe connecting (7), sludge reflux pump (14) is set.
2. a kind of mud chemical dephosphorization precipitation separation device according to claim 1, is characterized in that: described mud pipe connecting (7) is provided with pipe connecting blow-down pipe (18).
3. a kind of mud chemical dephosphorization precipitation separation device according to claim 1, is characterized in that: coagulation stirrer (5) is installed in described coagulation reaction tank (1).
4. a kind of mud chemical dephosphorization precipitation separation device according to claim 1, is characterized in that: flocculation stirring machine (8) is installed in described flocculation tank (2).
5. a kind of mud chemical dephosphorization precipitation separation device according to claim 1, is characterized in that: mud scraper (11) is installed in described settling pond (3), and settling pond (3) feed-water end is provided with scum silica frost bucket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591886.2U CN203545862U (en) | 2013-09-25 | 2013-09-25 | Chemical phosphorus removal and precipitation separation device for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591886.2U CN203545862U (en) | 2013-09-25 | 2013-09-25 | Chemical phosphorus removal and precipitation separation device for sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545862U true CN203545862U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591886.2U Expired - Fee Related CN203545862U (en) | 2013-09-25 | 2013-09-25 | Chemical phosphorus removal and precipitation separation device for sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478193A (en) * | 2014-12-11 | 2015-04-01 | 北京建工环境修复股份有限公司 | Efficient dehydration system and dehydration method of soil washing slurry |
| CN109336234A (en) * | 2018-11-30 | 2019-02-15 | 贵州楚天两江环境股份有限公司 | A kind of efficient dephosphorization technique |
-
2013
- 2013-09-25 CN CN201320591886.2U patent/CN203545862U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478193A (en) * | 2014-12-11 | 2015-04-01 | 北京建工环境修复股份有限公司 | Efficient dehydration system and dehydration method of soil washing slurry |
| CN109336234A (en) * | 2018-11-30 | 2019-02-15 | 贵州楚天两江环境股份有限公司 | A kind of efficient dephosphorization technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |