CN210620504U - Waste water treatment system of thermal power plant - Google Patents
Waste water treatment system of thermal power plant Download PDFInfo
- Publication number
- CN210620504U CN210620504U CN201920768900.9U CN201920768900U CN210620504U CN 210620504 U CN210620504 U CN 210620504U CN 201920768900 U CN201920768900 U CN 201920768900U CN 210620504 U CN210620504 U CN 210620504U
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- Prior art keywords
- tank
- treatment system
- domestic sewage
- sewage treatment
- water
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- Expired - Fee Related
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 34
- 239000010865 sewage Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 239000002351 wastewater Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000005189 flocculation Methods 0.000 claims abstract description 9
- 230000016615 flocculation Effects 0.000 claims abstract description 9
- 238000005188 flotation Methods 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims description 21
- 239000010842 industrial wastewater Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 10
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000010840 domestic wastewater Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to a thermal power plant wastewater treatment system, which comprises a domestic sewage treatment system and a production wastewater treatment system, wherein the domestic sewage treatment system comprises a septic tank, a grid, a sewage lift pump and a sewage treatment device which are connected in sequence; the production wastewater treatment system comprises a production wastewater adjusting tank, a lifting pump, a flocculation sedimentation tank, an air flotation tank, an intermediate water tank lifting pump, a fiber filter and a clean water tank which are connected in sequence; the sewage treatment device is connected with the middle water tank and used for conveying the treated domestic sewage to the middle water tank. The utility model discloses on the basis that does not change original industrial wastewater treatment process and domestic sewage treatment process, realized domestic sewage and industrial wastewater's separation treatment, through making domestic sewage treatment plant go out the middle pond that the water got into industrial wastewater treatment system, reduced industrial wastewater's processing load to make the water in middle pond filter the retrieval and utilization back through high-efficient fiber filter.
Description
Technical Field
The utility model belongs to the technical field of thermal power, especially, relate to a waste water treatment system of thermal power plant.
Background
In recent years, the requirements of national and local environmental protection policies are more and more strict, and the comprehensive treatment and zero emission of the wastewater of the whole plant of a power plant are urgent.
The existing power plant water taking sources are surface water and urban reclaimed water generally, the surface water is used for chemically preparing demineralized water, domestic fire water, heat supply network water replenishing and circulating water replenishing, and the urban reclaimed water is generally taken from a sewage treatment plant and is used for water tower water replenishing after being treated by a reclaimed water treatment facility in the plant.
The sewage treatment facility mainly collects and treats industrial wastewater discharged by 330MW units regularly and irregularly and domestic sewage generated in the operation process of a power plant area. The domestic sewage mainly comprises drainage from office building sanitary equipment and part of miscellaneous water in workshops, and is lifted to enter domestic sewage treatment equipment for treatment after being collected by a factory pipeline. The treated domestic sewage is sent to an industrial wastewater treatment facility.
The industrial wastewater mainly comprises: the production drainage entering the treatment station comprises the general water of a main factory building, the drainage of equipment pipelines, the drainage of pump pits, the pretreatment of sludge water, the industrial sewage of old factories and other irregular drainage and the like. The industrial wastewater of old factory mainly takes the waste water that chemical demineralized water system produced as the main, includes: filter backwashing water, ion exchange equipment regeneration drainage, boiler blow-down water, chemical sampling drainage and the like.
The sewage treatment system adopts: biochemical reaction, precipitation, reaction, air floatation, disinfection and other main processes. Collecting domestic sewage, industrial wastewater and desulfurization wastewater to a production drainage clean water tank in a unified way, and sending one part of domestic sewage, industrial wastewater and desulfurization wastewater to a desulfurization system for recycling; the other part is recycled to the circulating cooling water. The sewage treatment flow is shown in figure 1. Domestic sewage and production wastewater of the existing power plant directly enter the inclined plate sedimentation tank for treatment, so that the treatment load of the production wastewater is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thermal power plant effluent disposal system on the basis that does not change original industrial wastewater treatment process and domestic sewage treatment process, realizes domestic sewage and industrial wastewater's separation processing, goes out the middle pond that the water got into industrial wastewater treatment system through making domestic sewage treatment equipment, reduces industrial wastewater's processing load to the water of pond is retrieved after high-efficient fiber filter filters in the middle of making.
The utility model provides a thermal power plant wastewater treatment system, which comprises a domestic sewage treatment system and a production wastewater treatment system, wherein the domestic sewage treatment system comprises a septic tank, a grid, a sewage lift pump and a sewage treatment device which are connected in sequence;
the production wastewater treatment system comprises a production wastewater adjusting tank, a lifting pump, a flocculation sedimentation tank, an air flotation tank, an intermediate water tank lifting pump, a fiber filter and a clean water tank which are connected in sequence;
the sewage treatment device is connected with the middle water tank and is used for conveying the treated domestic sewage to the middle water tank.
Furthermore, the production wastewater treatment system also comprises a sludge tank, a concentration tank and a sludge separation device, wherein the sludge tank is connected with the flocculation sedimentation tank and the air flotation tank, the concentration tank is connected with the sludge tank, and the sludge separation device is connected with the concentration tank.
By means of the scheme, through the wastewater treatment system of the thermal power plant, on the basis of not changing the original production wastewater treatment process and the original domestic wastewater treatment process, the domestic wastewater and the production wastewater are separated and treated, the treatment load of the production wastewater is reduced by enabling the effluent of the domestic wastewater treatment device to enter the intermediate water tank of the production wastewater treatment system, and the water in the intermediate water tank is recycled after being filtered by the high-efficiency fiber filter.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a conventional thermal power plant wastewater treatment system;
FIG. 2 is the structure schematic diagram of the waste water treatment system of the thermal power plant.
Reference numbers in the figures:
11-a septic tank; 12-a grid; 13-sewage lift pump; 14-a sewage treatment plant;
21-a production wastewater adjusting tank; 22-a lift pump; 23-a flocculation sedimentation tank; 24-an air floatation tank; 25-an intermediate water tank; 26-intermediate pool lift pump; 27-a fiber filter; 28-clean water pool; 29-sludge tank; 30-a concentration tank; 31-sludge separation device.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 2, the present embodiment provides a thermal power plant wastewater treatment system, which includes a domestic sewage treatment system and a production wastewater treatment system, wherein the domestic sewage treatment system includes a septic tank 11, a grid 12, a sewage lift pump 13 and a sewage treatment device 14, which are connected in sequence; the sewage treatment apparatus 14 may employ a sewage treatment device of the related art.
The production wastewater treatment system comprises a production wastewater adjusting tank 21, a lifting pump 22, a flocculation sedimentation tank 23, an air floatation tank 24, an intermediate water tank 25, an intermediate water tank lifting pump 26, a fiber filter 27 and a clean water tank 18 which are connected in sequence;
the sewage treatment device 14 is connected to the intermediate tank 25 for transferring the treated domestic sewage to the intermediate tank 25.
Through this waste water treatment system of thermal power plant, can realize the separation treatment of domestic sewage and industrial wastewater on the basis that does not change original industrial wastewater treatment process and domestic sewage treatment process, through making domestic sewage treatment plant go into the intermediate water pond of industrial wastewater treatment system, reduce the processing load of industrial wastewater to make the water of intermediate water pond retrieve after high-efficient fiber filter filters.
In this embodiment, the production wastewater treatment system further includes a sludge tank 29, a concentration tank 30 and a sludge separation device 31, the sludge tank 29 is connected to the flocculation sedimentation tank 23 and the flotation tank 24, the concentration tank 30 is connected to the sludge tank 29, and the sludge separation device 31 is connected to the concentration tank 30. The sludge produced in the flocculation sedimentation tank 23 can be concentrated and separated by the sludge tank 29, the concentration tank 30 and the sludge separation device 31.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. A thermal power plant wastewater treatment system is characterized by comprising a domestic sewage treatment system and a production wastewater treatment system, wherein the domestic sewage treatment system comprises a septic tank, a grid, a sewage lifting pump and a sewage treatment device which are sequentially connected;
the production wastewater treatment system comprises a production wastewater adjusting tank, a lifting pump, a flocculation sedimentation tank, an air flotation tank, an intermediate water tank lifting pump, a fiber filter and a clean water tank which are connected in sequence;
the sewage treatment device is connected with the middle water tank and used for conveying the treated domestic sewage to the middle water tank.
2. The thermal power plant wastewater treatment system according to claim 1, wherein the production wastewater treatment system further comprises a sludge tank, a concentration tank and a sludge separation device, the sludge tank is connected with the flocculation sedimentation tank and the flotation tank, the concentration tank is connected with the sludge tank, and the sludge separation device is connected with the concentration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920768900.9U CN210620504U (en) | 2019-05-27 | 2019-05-27 | Waste water treatment system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920768900.9U CN210620504U (en) | 2019-05-27 | 2019-05-27 | Waste water treatment system of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210620504U true CN210620504U (en) | 2020-05-26 |
Family
ID=70752798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920768900.9U Expired - Fee Related CN210620504U (en) | 2019-05-27 | 2019-05-27 | Waste water treatment system of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210620504U (en) |
-
2019
- 2019-05-27 CN CN201920768900.9U patent/CN210620504U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |