CN204385021U - A kind of system processing waste water of heat-engine plant - Google Patents
A kind of system processing waste water of heat-engine plant Download PDFInfo
- Publication number
- CN204385021U CN204385021U CN201420754700.5U CN201420754700U CN204385021U CN 204385021 U CN204385021 U CN 204385021U CN 201420754700 U CN201420754700 U CN 201420754700U CN 204385021 U CN204385021 U CN 204385021U
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- China
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- waste water
- heat
- baf
- engine plant
- equalizing tank
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- Water Treatment By Sorption (AREA)
- Biological Treatment Of Waste Water (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to a kind of system processing waste water of heat-engine plant, the system of described process waste water of heat-engine plant comprises inlet channel, grid, equalizing tank, horizontal sedimentation tank, BAF, air flotation pool, auxiliary flow settling pond, outlet conduit, sludge thickener, belt filter press and the outer wan access of mud, described inlet channel, grid, equalizing tank, horizontal sedimentation tank, BAF, air flotation pool, auxiliary flow settling pond, outlet conduit connects successively, described equalizing tank, horizontal sedimentation tank, auxiliary flow settling pond, coagulation basin, belt filter press is all communicated with sludge thickener, belt filter press and equalizing tank, mud outward transport channel connection.Waste water of heat-engine plant effluent quality after the utility model process is good, pH value, suspended substance, NH in water outlet
3the contamination indexs such as-N all reach standard of drainage, solve the predicament of power industry wastewater treatment, are applicable to popularity and use.
Description
Technical field
The utility model relates to a kind of system processing waste water of heat-engine plant.
Background technology
Power industry is the rich and influential family with water and draining, is also the rich and influential family of disposal of pollutants simultaneously.According to statistics, the water consumption of 1 1000 MW power plant is generally greater than 1m
3/ s, is equivalent to the water consumption of 1 small and medium-sized cities, and the annual draining of thermal power plant accounts for 10% of national industrial enterprise quantity discharged, because quantity discharged is large, makes total amount of pollutants discharged larger, thus also just more serious to the pollution level of environment.The water resources of China is very short, and the per-capita quantity of the resources comes after 100 in countries in the world.Therefore, improve the repeating utilization factor of water, the Sustainable development tool for China's power industry is of great significance.
The pH value of thermal power plant's draining, suspended substance, NH
3-N etc. are main transnormal itemses, and generally adopt electric precipitator along with large sized unit, and exceeding standard of grey field draining pH value at no distant date can be in rising trend, and therefore, how reasonably processing this kind of waste water is environmental engineering worker problem demanding prompt solution.
Utility model content
The purpose of this utility model is the defect overcoming prior art existence, provides a kind of system processing waste water of heat-engine plant.
The technical scheme realizing the utility model object is: a kind of system processing waste water of heat-engine plant, the system of described process waste water of heat-engine plant comprises inlet channel, grid, equalizing tank, horizontal sedimentation tank, BAF, air flotation pool, auxiliary flow settling pond, outlet conduit, sludge thickener, belt filter press and the outer wan access of mud, described inlet channel, described grid, described equalizing tank, described horizontal sedimentation tank, described BAF, described air flotation pool, described auxiliary flow settling pond, described outlet conduit connects successively, described equalizing tank, described horizontal sedimentation tank, described auxiliary flow settling pond, described coagulation basin, described belt filter press is all communicated with described sludge thickener, described belt filter press and described equalizing tank, described mud outward transport channel connection.
As optimization, described auxiliary flow settling pond partial sludge is back to described BAF, and excess sludge flows into described sludge thickener, and water outlet flows into described outlet conduit.
As optimization, the mud of described horizontal sedimentation tank flows into described sludge thickener, and sewage flows into described BAF.
As optimization, the drainage of described sludge thickener, described belt filter press is back to described equalizing tank.
As optimization, agitation cycle system and biologic packing material are set in described BAF.
The utility model has positive effect: when the utility model uses, first waste water of heat-engine plant enters grid by inlet channel and removes macrobead organism and floating matter, then waste water enters the regulating water quality water yield in equalizing tank, enter horizontal sedimentation tank again, by the sand grains in waste water in horizontal sedimentation tank, SS (suspended solid) and part COD (chemical oxygen demand (COD)) gets rid of, then waste water enters BAF, a large amount of biologic packing materials is set in BAF, biologic packing material can adsorb a large amount of microorganism of generation, thus reduce COD, the content of BOD (biochemical oxygen demand (BOD)) etc., the partial sludge that auxiliary flow settling pond flows in BAF refluxes in order to increase sludge concentration, part microorganism is made to be in anoxic condition, by NH most in waste water
3-N and NO
xbe converted into N
2eliminate polluted by nitrogen, waste water after BAF process flows into air flotation pool, in air flotation pool, again the fine suspension in water is removed, then sewage enters auxiliary flow settling pond and precipitates again, the water qualified discharge be separated is to outlet conduit, partial sludge is back to BAF, and excess sludge enters sludge thickener, to flow in sludge thickener mud after concentrated, precipitation, sewage is sent into equalizing tank and is again processed, after mud is dewatered by belt filter press, transported by the outer wan access of mud, sewage backflow processes again to equalizing tank.
Waste water of heat-engine plant effluent quality after the utility model process is good, pH value, suspended substance, NH in water outlet
3the contamination indexs such as-N all reach standard of drainage, solve the predicament of power industry wastewater treatment, are applicable to popularity and use.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the system flow schematic diagram of the utility model process waste water of heat-engine plant.
Embodiment
As shown in Figure 1, the utility model is a kind of system processing waste water of heat-engine plant, the system of described process waste water of heat-engine plant comprises inlet channel, grid, equalizing tank, horizontal sedimentation tank, BAF, air flotation pool, auxiliary flow settling pond, outlet conduit, sludge thickener, belt filter press and the outer wan access of mud, described inlet channel, described grid, described equalizing tank, described horizontal sedimentation tank, described BAF, described air flotation pool, described auxiliary flow settling pond, described outlet conduit connects successively, described equalizing tank, described horizontal sedimentation tank, described auxiliary flow settling pond, described coagulation basin, described belt filter press is all communicated with described sludge thickener, described belt filter press and described equalizing tank, described mud outward transport channel connection.Described auxiliary flow settling pond partial sludge is back to described BAF, and excess sludge flows into described sludge thickener, and water outlet flows into described outlet conduit.The mud of described horizontal sedimentation tank flows into described sludge thickener, and sewage flows into described BAF.The drainage of described sludge thickener, described belt filter press is back to described equalizing tank.Agitation cycle system and biologic packing material are set in described BAF.
Grid is used for organism in filter sewage, bulk suspends or floating pollutent, and ensure that follow-up structures, water pump, pipeline etc. normally run, the sewage after filtration flows into equalizing tank.
Because the water quality of trade effluent, the water yield change greatly, equalizing tank is used for regulating the water quality and quantity of waste water, and ensure the effect of follow-up structures process, the waste water after adjustment flows into settling pit.
Horizontal sedimentation tank is for removing the larger particle of proportion, silt etc., and then sewage flows into BAF.
A large amount of biologic packing materials is set in BAF, control oxygen level biologic packing material and can adsorb a large amount of microorganism of generation, and the concentration controlling dissolved oxygen is between 0.5-0.7mg/L, maximumly be no more than 1mg/L, in BAF, arrange agitation cycle system stir, add microorganism and organic touch opportunity, thus reduce COD, the content of BOD (biochemical oxygen demand (BOD)) etc., the partial sludge that horizontal sedimentation tank flows in BAF refluxes in order to increase sludge concentration, part microorganism is made to be in anoxic condition, by NH most in waste water
3-N and NO
xbe converted into N
2, eliminate polluted by nitrogen, the waste water after BAF process flows into air flotation pool.
The pipeline position entering air flotation pool at sewage adds flocculation agent, sewage flows into air flotation pool together with flocculation agent, and microbubble attaches on wadding grain, and air supporting relies on microbubble thus realizes the mandatory floating of wadding grain, reach solid-liquid separation, the sewage after air flotation pool process flows into secondary flow formula settling tank.
In auxiliary flow settling pond, the solid in water, liquid are thoroughly separated, after liquid is up to standard, sterilization is discharged, and partial sludge is back to BAF, and excess sludge flows into sludge thickener.
Sludge thickener, by sludge condensation, reduces the water ratio of mud, the volume of mud is reduced; Mud after sludge thickener process sends into belt filter press, and sludge thickener sewage is out back to equalizing tank again and again processes.
Belt filter press makes mud dewater further, reduced volume, and convenient outward transport, sewage backflow processes again to equalizing tank.
Embodiment:
Certain thermal power plant's comprehensive wastewater, day quantity discharged be 50,000 tons, water quality is as follows: pH=6-9, SS=500mg/L, BOD=30mg/L, COD=80mg/L, NH
3-N=5mg/L.
When the utility model uses: when the utility model uses, first waste water of heat-engine plant enters grid by inlet channel and removes macrobead organism and floating matter, then waste water enters the regulating water quality water yield in equalizing tank, enter horizontal sedimentation tank again, by the sand grains in waste water in horizontal sedimentation tank, SS (suspended solid) and part COD (chemical oxygen demand (COD)) gets rid of, then waste water enters BAF, a large amount of biologic packing materials is set in BAF, biologic packing material can adsorb a large amount of microorganism of generation, thus reduce COD, the content of BOD (biochemical oxygen demand (BOD)) etc., the partial sludge that auxiliary flow settling pond flows in BAF refluxes in order to increase sludge concentration, part microorganism is made to be in anoxic condition, by NH most in waste water
3-N is converted into N
2eliminate polluted by nitrogen, waste water after BAF process flows into air flotation pool, in air flotation pool, again the fine suspension in water is removed, then sewage enters auxiliary flow settling pond and precipitates again, the water qualified discharge be separated is to outlet conduit, partial sludge is back to BAF, and excess sludge enters sludge thickener, to flow in sludge thickener mud after concentrated, precipitation, sewage is sent into equalizing tank and is again processed, after mud is dewatered by belt filter press, transported by the outer wan access of mud, sewage backflow processes again to equalizing tank.
The effluent quality reached: pH=6-9, SS=18.2mg/L, BOD=8.208mg/L, COD=38.88mg/L, NH
3-N=0.73mg/L.
Each processing unit treatment effect is as following table:
As can be seen from this embodiment, the waste water of heat-engine plant effluent quality after the utility model process is good, pH value, suspended substance, NH in water outlet
3the contamination indexs such as-N all reach standard of drainage, solve the predicament of power industry wastewater treatment, are applicable to popularity and use.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. one kind processes the system of waste water of heat-engine plant, it is characterized in that: the system of described process waste water of heat-engine plant comprises inlet channel, grid, equalizing tank, horizontal sedimentation tank, BAF, air flotation pool, auxiliary flow settling pond, outlet conduit, sludge thickener, belt filter press and the outer wan access of mud, described inlet channel, described grid, described equalizing tank, described horizontal sedimentation tank, described BAF, described air flotation pool, described auxiliary flow settling pond, described outlet conduit connects successively, described equalizing tank, described horizontal sedimentation tank, described auxiliary flow settling pond, described belt filter press is all communicated with described sludge thickener, described belt filter press and described equalizing tank, described mud outward transport channel connection.
2. a kind of system processing waste water of heat-engine plant according to claim 1, is characterized in that: described auxiliary flow settling pond partial sludge is back to described BAF, and excess sludge flows into described sludge thickener, and water outlet flows into described outlet conduit.
3. a kind of system processing waste water of heat-engine plant according to claim 2, is characterized in that: the mud of described horizontal sedimentation tank flows into described sludge thickener, and sewage flows into described BAF.
4. a kind of system processing waste water of heat-engine plant according to claim 3, is characterized in that: the drainage of described sludge thickener, described belt filter press is back to described equalizing tank.
5. a kind of system processing waste water of heat-engine plant according to any one of claim 1 to 4, is characterized in that: arrange agitation cycle system and biologic packing material in described BAF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754700.5U CN204385021U (en) | 2014-12-04 | 2014-12-04 | A kind of system processing waste water of heat-engine plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754700.5U CN204385021U (en) | 2014-12-04 | 2014-12-04 | A kind of system processing waste water of heat-engine plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204385021U true CN204385021U (en) | 2015-06-10 |
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ID=53357756
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420754700.5U Expired - Fee Related CN204385021U (en) | 2014-12-04 | 2014-12-04 | A kind of system processing waste water of heat-engine plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271556A (en) * | 2015-12-03 | 2016-01-27 | 重庆甘泰环保设备有限公司 | Market-town domestic sewage treatment system |
| CN106977054A (en) * | 2017-04-25 | 2017-07-25 | 浙江华鼎市政建设有限公司 | Municipal wastewater cleaning system construction technology |
| CN110510819A (en) * | 2019-09-02 | 2019-11-29 | 深圳市前海万绿源环保科技有限公司 | A kind of sewage gas explosion ball treatment process |
| CN112441706A (en) * | 2020-12-07 | 2021-03-05 | 浙江德安科技股份有限公司 | Integration resourceful treatment of domestic sewage system |
-
2014
- 2014-12-04 CN CN201420754700.5U patent/CN204385021U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271556A (en) * | 2015-12-03 | 2016-01-27 | 重庆甘泰环保设备有限公司 | Market-town domestic sewage treatment system |
| CN106977054A (en) * | 2017-04-25 | 2017-07-25 | 浙江华鼎市政建设有限公司 | Municipal wastewater cleaning system construction technology |
| CN110510819A (en) * | 2019-09-02 | 2019-11-29 | 深圳市前海万绿源环保科技有限公司 | A kind of sewage gas explosion ball treatment process |
| CN112441706A (en) * | 2020-12-07 | 2021-03-05 | 浙江德安科技股份有限公司 | Integration resourceful treatment of domestic sewage system |
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|---|---|---|---|
| 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: 20150610 Termination date: 20181204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |