CN202988773U - Phosphorous-removal reflux tank structure for excess sludge refluxing and utilizing system - Google Patents
Phosphorous-removal reflux tank structure for excess sludge refluxing and utilizing system Download PDFInfo
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- CN202988773U CN202988773U CN 201220743672 CN201220743672U CN202988773U CN 202988773 U CN202988773 U CN 202988773U CN 201220743672 CN201220743672 CN 201220743672 CN 201220743672 U CN201220743672 U CN 201220743672U CN 202988773 U CN202988773 U CN 202988773U
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- phosphorous
- removal
- dephosphorization
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- tank body
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Abstract
The utility model discloses a phosphorous-removal flux tank structure for an excess sludge refluxing and utilizing system. The phosphorous-removal flux tank structure comprises a phosphorous-removal flux tank body, wherein the upper side wall of the tank body is connected with a sedimentation and concentration tank water outlet pipeline for inflowing a carbon-source containing liquid supernatant; a phosphorous-removal agent adding pipeline is connected to the tank body; the phosphorous-removal agent adding pipe is vertically fixed on the middle part of the tank body by a supporting piece; a horizontal shunt pipe is connected at the lower end of the phosphorous-removal agent adding pipeline; a plurality of adding points are formed on the horizontal shunt pipe at intervals; a plurality of outlet pipes which are communicated with the horizontal shunt pipe and uniformly distributed along the circumferential direction are arranged on each adding point; a liquid supernatant outlet channel is further formed on the upper side wall of the tank body; and a phosphorous-removal sludge pipeline is arranged on the bottom of the tank body. The phosphorous-removal flux tank structure can be used in the excess sludge refluxing and utilizing system, so that the carbon source containing liquid supernatant can be recycled after the phosphorous-removal treatment is carried out, and the treatment efficiency can be improved; and meanwhile, the phosphorous-removal flux tank structure has the advantages of being simple in structure, convenient to implement, low in implementation cost and the like.
Description
Technical field
The utility model relates to a kind of sewage treatment area, and especially a kind of residual sludge reflux of activated sludge process water treatment utilizes the dephosphorization backflow pool structure of system.
Background technology
Along with the raising day by day of the level of urbanization and living standards of the people, the daily water yield increases, sewage disposal
The factors such as the Facilities Construction difficulty is large cause municipal effluent usually to present organic concentration low, and nitrogen and phosphorus content is higher.Especially Shelter in South China Cities, with heavy rainfall, and the collection mode of sanitary sewage usually links together with Xiaohegou, namely directly tackles the stream sewage is introduced Sewage Plant, further reduced and advanced factory's organic concentration, strengthens intractability.Municipal effluent water quality presents that organic concentration is more and more lower, nitrogen phosphorus nutrition thing is more and more higher, the phenomenon of the C/N of sewage, C/P ratio continuous decrease.For most of Sewage Plant, realize that synchronous denitrification dephosphorizing itself just has certain difficulty, and in low carbon source treatment system, this problem shows more obviously; The emission standard requirement is further strict in addition, guarantees when guaranteeing denitrogenation in low carbon source treatment system that therefore phosphor-removing effect and qualified discharge seem particularly important.
At present, China's most cities Sewage Plant is lower for entering organic matter of water concentration, can't guarantee that the conventional means of synchronous denitrification dephosphorizing problem is for to add the dephosphorization medicament, to add methyl alcohol in the denitrification section at second pond.This operational mode is to cause the high major cause of low carbon source Sewage Plant working cost obviously.Therefore, at present the mode that adds carbon source that adopts of Sewage Plant has not only increased Financial cost, has also run counter to the aim of energy-saving and emission-reduction, less energy-consumption simultaneously.
Simultaneously, activated sludge process is present most widely used dirty water living creature processing technique, but there is the drawback of a maximum in it always, can produce a large amount of excess sludges exactly.At present, excess sludge is processed and is mostly adopted landfill or burning, these ordinary methods can be brought new negative effect to environment again in lignin-sludge, in addition, investment and the working cost of sludge treatment are huge, can account for 25%-65% of whole Sewage Plant investment and working cost, become the heavy burden that Sewage Plant faces.Although the municipal wastewater moisture percentage in sewage sludge is high, viscosity is strong, be difficult for realizing mud-water separation, but wherein contain a large amount of organism, show according to related data, the organic content of active sludge is more than 70%, and organic composition comprises carbohydrate 10%～20%, fat 20%～40%, protein 30%～40%.
In order to address the above problem, the applicant considers to have designed a kind of residual sludge reflux and utilizes system, the part active sludge that the activated sludge process water treatment is produced reclaims, then add alkali lye to make its reaction, enter the precipitation concentration basin after reaction and precipitate and isolate the carbonaceous sources supernatant liquor, add again dephosphorization agent to process in the carbonaceous sources supernatant liquor that precipitates and isolates, then just can be used as carbon source and recycle.
In this system, how to design a dephosphorization backflow pool and process rear the backflow to carry out dephosphorization for the carbonaceous sources supernatant liquor with precipitate and separate, and improve its dephosphorization treatment rate, become the problem that remains to be considered.
The utility model content
For the deficiencies in the prior art, technical problem to be solved in the utility model is, how to provide a kind of simple in structure, utilize the convenient carbonaceous sources supernatant liquor that precipitate and separate is obtained of system to carry out dephosphorization for residual sludge reflux and process the dephosphorization backflow pool structure that the residual sludge reflux that also can improve treatment rate utilizes system.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
a kind of residual sludge reflux utilizes the dephosphorization backflow pool structure of system, it is characterized in that, comprise dephosphorization backflow pool pond body, pond body upper portion side wall is connected and supplies the water inlet of carbonaceous sources supernatant liquor with precipitation concentration basin outlet conduit, also be connected with dephosphorization agent on the body of pond and add pipeline, dephosphorization agent adds device for cleaning pipeline and crosses strut member and vertically be fixed on pond body middle part, dephosphorization agent adds lower end of duct and is connected with horizontal isocon, evenly be arranged at intervals with a plurality of release positions on horizontal isocon, each release position place is provided with that a plurality of and horizontal isocon is communicated with and along circumferential equally distributed outlet pipe, pond body upper portion side wall also is provided with the supernatant liquor water exit, body bottom, pond is provided with dephosphorization sludge outlet pipeline.
Dephosphorization backflow pool structure of the present utility model, connect and to be provided with dephosphorization agent and to add pipeline and add for dephosphorization agent, be connected for the water inlet of carbonaceous sources supernatant liquor with precipitation concentration basin outlet conduit simultaneously, then be provided with unique dephosphorization agent and add the pipe outlet structure, make when adding dephosphorization agent, dephosphorization agent can mix with the carbonaceous sources supernatant liquor very equably, accelerated reaction speed, improve treatment rate, do not affect the sedimentation of sludge settling simultaneously.Supernatant liquor after dephosphorization is processed flows out and recycles as the sewage disposal carbon source from the supernatant liquor water exit.The below precipitation can efflux from dephosphorization sludge outlet pipeline, can drain into the outward transport of dewatering between dehydration when specifically implementing and process.Like this, the utility model is used for residual sludge reflux and utilizes system, can realize expeditiously the dephosphorization processing of carbon source supernatant liquor, and then realize recycling, not only reduced excess sludge production, reduce the subsequent treatment cost of excess sludge, and can also make up as a kind of supplementary carbon source of cheapness not enough this present situation of carbon source in the municipal wastewater water inlet.
In sum, the utility model can be used in residual sludge reflux and utilizes in system, conveniently isolated carbonaceous sources supernatant liquor is carried out recycling after dephosphorization is processed, and can improve processing efficiency, also have simultaneously simple in structure, the advantage such as it is convenient to implement, and implementation cost is cheap.
Description of drawings
Fig. 1 is structural representation sketch of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
be illustrated in fig. 1 shown below, a kind of residual sludge reflux utilizes the dephosphorization backflow pool structure of system, comprise dephosphorization backflow pool pond body 1, body 1 upper portion side wall in pond is connected and supplies the water inlet of carbonaceous sources supernatant liquor with precipitation concentration basin outlet conduit 2, also be connected with dephosphorization agent on pond body 1 and add pipeline 3, dephosphorization agent adds pipeline 3 and vertically is fixed on pond body 1 middle part by strut member 4, dephosphorization agent adds pipeline 3 lower ends and is connected with horizontal isocon 5, evenly be arranged at intervals with a plurality of release positions on horizontal isocon 5, each release position place is provided with that a plurality of and horizontal isocon 5 is communicated with and along circumferential equally distributed outlet pipe 6, pond body upper portion side wall also is provided with supernatant liquor water exit 7, body bottom, pond is provided with dephosphorization sludge outlet pipeline 8.
Claims (1)
1. a residual sludge reflux utilizes the dephosphorization backflow pool structure of system, it is characterized in that, comprise dephosphorization backflow pool pond body, pond body upper portion side wall is connected and supplies the water inlet of carbonaceous sources supernatant liquor with precipitation concentration basin outlet conduit, also be connected with dephosphorization agent on the body of pond and add pipeline, dephosphorization agent adds device for cleaning pipeline and crosses strut member and vertically be fixed on pond body middle part, dephosphorization agent adds lower end of duct and is connected with horizontal isocon, evenly be arranged at intervals with a plurality of release positions on horizontal isocon, each release position place is provided with that a plurality of and horizontal isocon is communicated with and along circumferential equally distributed outlet pipe, pond body upper portion side wall also is provided with the supernatant liquor water exit, body bottom, pond is provided with dephosphorization sludge outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743672 CN202988773U (en) | 2012-12-29 | 2012-12-29 | Phosphorous-removal reflux tank structure for excess sludge refluxing and utilizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743672 CN202988773U (en) | 2012-12-29 | 2012-12-29 | Phosphorous-removal reflux tank structure for excess sludge refluxing and utilizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202988773U true CN202988773U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743672 Expired - Fee Related CN202988773U (en) | 2012-12-29 | 2012-12-29 | Phosphorous-removal reflux tank structure for excess sludge refluxing and utilizing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202988773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167294A (en) * | 2016-08-31 | 2016-11-30 | 南京河海环境研究院有限公司 | A kind of sewage auxiliary dephosphorization device |
| CN109399794A (en) * | 2018-12-24 | 2019-03-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of town sewage treatment system and technique of strengthened denitrification |
-
2012
- 2012-12-29 CN CN 201220743672 patent/CN202988773U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167294A (en) * | 2016-08-31 | 2016-11-30 | 南京河海环境研究院有限公司 | A kind of sewage auxiliary dephosphorization device |
| CN109399794A (en) * | 2018-12-24 | 2019-03-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of town sewage treatment system and technique of strengthened denitrification |
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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: 20130612 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |