CN1132786C - Process without drainage of waste water - Google Patents
Process without drainage of waste water Download PDFInfo
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- CN1132786C CN1132786C CN 00115859 CN00115859A CN1132786C CN 1132786 C CN1132786 C CN 1132786C CN 00115859 CN00115859 CN 00115859 CN 00115859 A CN00115859 A CN 00115859A CN 1132786 C CN1132786 C CN 1132786C
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Abstract
The present invention relates to a process without drainage of wastewater, which comprises three closed loop small systems. Wastewater in a drainage pool of a main factory building, wastewater in a living sewage pool and a small amount of overflow water are collected to an overflow water storage pool in a wastewater integrated treatment system, and are pumped to a clarifying pool by an underliquid pump; medicine is added through an alum adding system in the middle; then, the wastewater is drained into a cooling tower as replenishing water of circulation water through a filter pool without a valve; certain quantities of bactericidal agents and water quality stabilizing agents are added to the circulation water, and compared with the concentration multiple rate of the replenishing water, the concentration multiple rate is controlled through dosage by less than 10 times. The present invention can fully enhance water utilization rate, the water consumption is reduced, the wastewater no longer drains towards rivers, and the zero drainage is realized.
Description
The present invention relates to a kind of wastewater treatment method, mainly is a kind of zero emission method of wastewater that is applied to power plant.
In the prior art, Chinese patent CN-1151377A discloses a kind of improved power plant water and ash treatment system, comprise boiler feed water system, circulating water system, industrial water system, ash disposal system, feature is in boiler feed water system, the soft water that forms behind the carbon removal tower again through the water of sun bed decationize partly enters distribution reservoir, other has the unboiled water pipeline to be connected into distribution reservoir supply unboiled water, enters circulating water system after unboiled water and soft water prepare.Its deficiency is that the utilization ratio of water is not high, still has bigger water consumption and wastewater displacement.
The present invention is in order to overcome the deficiency of above-mentioned prior art, and a kind of zero emission method of wastewater is provided.Can fully improve the utilization ratio of water, reduce water consumption, make waste water, really accomplish zero release no longer to the rivers discharging.
The present invention implements by the following technical programs.This zero emission method of wastewater, comprise in the chemistry and water processing system, ash discharge wash-down water treatment system, defeated coal wash-down water treatment system, waste water total system and add the alum system, in the chemistry and water processing system, ash discharge wash-down water treatment system and defeated coal wash-down water treatment system be three closed loop mini systems; In the chemistry and the waste water in the water processing system do not remake acid-base neutralisation, waste water by siphon device, is got to furnace bottom submerged pump by sump pump by neutralization tank, directly as the make up water of flushing cinder water, a spot of overflow water converges to the overflow type water reservoir through trench.Waste water in the ash discharge wash-down water treatment system imports the submerged pump pond through the open drain, promote through submerged pump then and enter dewatering bunker, then through back pool to wash-water pump, reuse as the ash discharge wash-down water, a spot of overflow water converges to the overflow type water reservoir through trench.Waste water in the defeated coal wash-down water treatment system is beaten the waste water of each trestle and transfer point to slurry pond with mixed step by step through the pond of confluxing everywhere, and the clear water closed loop of post precipitation is reused, and a spot of overflow water converges to the overflow type water reservoir through trench.The waste water of power house blowoff basin passes through wet-pit, the waste water that the waste water in sanitary sewage pond reclaims the pond overflow by a small amount of overflow water and the industry of purifying domestic sewage station and three closed loop mini system generations is aggregated into the overflow type water reservoir in the waste water total system, beat to settling pond by submerged pump, middle through adding the dosing processing of alum system, be drained into the make up water of cooling tower through valveless filtering pool then as recirculated water, and can carry out moisturizing with small pump as required, in recirculated water, add a certain amount of sterilant, water quality stabilizer, and pass through the dosage control concentration rate in 10 times of moisturizing, thereby reach the salt balance of total system.
The present invention can also come perfect by the following technical programs.Add the alum system and form, the opening, stop of the flow control alum dosing pump by waste line by storage alum case, alum batch meter, alum solution case and alum dosing pump.Sterilant adopts and add 1227 model sterilant and stable CLO in recirculated water
2Combine, to solve the phenomenon of microbial growth in the water body.
Advantage of the present invention is: owing to adopt waste water total system and three closed loop mini systems, no longer to the rivers discharging, waste water can fully improve the utilization ratio of water after treatment as the make up water of recirculated water to waste water, reduces water consumption; By in recirculated water, adding a certain amount of sterilant, water quality stabilizer, reach the salt balance of total system simultaneously, really accomplish zero release.
Fig. 1 is the process flow sheet of wastewater treatment total system of the present invention.
Fig. 2 is the connection diagram of waste water total system of the present invention.
Fig. 3 is in the chemistry of the present invention and the connection diagram of water processing system.。
Fig. 4 is the connection diagram of ash discharge wash-down water treatment system of the present invention.
Fig. 5 is the connection diagram of defeated coal wash-down water treatment system of the present invention.
The invention will be further described below in conjunction with embodiment.This zero emission method of wastewater, comprise in the chemistry and water processing system, ash discharge wash-down water treatment system, defeated coal wash-down water treatment system, waste water total system and add the alum system, wherein in the chemistry and water processing system, ash discharge wash-down water treatment system and defeated coal wash-down water treatment system are three closed loop mini systems, the waste water of power house blowoff basin 1 is by wet-pit 5, the waste water that the waste water in sanitary sewage pond 2 reclaims pond 3 overflows by a small amount of overflow water and the industry of purifying domestic sewage station 4 and three closed loop mini system generations is aggregated into the overflow type water reservoir 6 in the waste water total system, overflow type water reservoir 6 can play buffer action to greasy dirt and floating matter, again by 7 dozens of submerged pumps to settling pond 12, middle through adding the dosing processing of alum system, then be drained into the make up water of cooling tower 14 as recirculated water through valveless filtering pool 13, and can carry out moisturizing with small pump 15 as required, basicly stable to guarantee discharge, in recirculated water, add a certain amount of sterilant simultaneously, water quality stabilizer, sterilant adopt and add 1227 model sterilant and stable CLO in recirculated waters
2Combine, to solve the phenomenon of microbial growth in the water body, and pass through the dosage control concentration rate in 10 times of moisturizing, make and carry by the evaporation and the wind of cooling tower 14, carry saltiness in the water and moisturizing contains amount phase equilibrium, thereby reach the salt balance of total system, prevent that condenser from producing new corrosion and fouling.
Adding the alum system is made up of storage alum case 8, alum batch meter 9, alum solution case 10 and alum dosing pump 11, alum dosing pump 11 adopts interlock, two alum dosing pumps 11 are established flow signal respectively to waste pipe and filling pipe dosing on waste pipe, start alum dosing pump 11 respectively by flow.By adding liquid polymerization ferric sulfate as coagulating agent in settling pond 12 water inlets, chemical reactions such as hydrolysis, neutralization, polymerization take place in water, after agglutinating matter generates, can play decolouring, degerming, remove the effect of radioelement, heavy metal ion, reduction COD, BOD by bridge formation, sedimentation, the net effect of catching.For guaranteeing clarifying effect, install inclined tube additional in the settling pond 12.
In the chemistry and water processing system in waste water do not remake acid-base neutralisation, waste water by siphon device 17, is got to furnace bottom submerged pump 19 by sump pump 18 by neutralization tank 16, direct make up water as flushing cinder water, pipeline adopts line plastic-steel tube, and a spot of overflow water converges to overflow type water reservoir 6 through trench.
Waste water in the ash discharge wash-down water treatment system is 21 remittance submerged pump ponds 22 through the open drain, promote through submerged pump 23 then and enter dewatering bunker 24, then through back pool 25 to wash-water pump 20, reuse as the ash discharge wash-down water, a small amount of overflow water converges to overflow type water reservoir 6 through trench.
Waste water in the defeated coal wash-down water treatment system is beaten the waste water of each trestle and transfer point to slurry pond 28 with mixed 27 step by step through the pond 26 of confluxing everywhere, and the clear water closed loop of post precipitation is reused, and a spot of overflow water converges to overflow type water reservoir 6 through trench.
This zero emission method of wastewater, with the analysis of experiments water consumption in power station, Xiaoshan, various waste water all do not discharge to Yangjiang, Pu, in 300 tons/hour, can reduce about 2,630,000 tons/year of outside waste discharge, reduce simultaneously to Yangjiang, Pu and fetch water 2,190,000 tons/year, but year about 170,000 yuan of output economic benefit.
Claims (2)
1, a kind of zero emission method of wastewater, comprise in the chemistry and water processing system, ash discharge wash-down water treatment system, defeated coal wash-down water treatment system, waste water total system and add the alum system, it is characterized in that: in the chemistry and water processing system, ash discharge wash-down water treatment system and defeated coal wash-down water treatment system are three closed loop mini systems, in the described chemistry and water processing system in waste water do not remake acid-base neutralisation, waste water passes through siphon device (17) by neutralization tank (16), get to furnace bottom submerged pump (19) by sump pump (18), directly as the make up water of flushing cinder water, a spot of overflow water converges to overflow type water reservoir (6) through trench; (21) import submerged pump pond (22) to waste water in the described ash discharge wash-down water treatment system through the open drain, promote through submerged pump (23) then and enter dewatering bunker (24), follow through back pool (25) to wash-water pump (20), reuse as the ash discharge wash-down water, a spot of overflow water converges to overflow type water reservoir (6) through trench; Waste water in the described defeated coal wash-down water treatment system is through everywhere the pond of confluxing (26), with mixed (27) waste water of each trestle and transfer point is beaten step by step to slurry pond (28), the clear water closed loop of post precipitation is reused, and a spot of overflow water converges to overflow type water reservoir (6) through trench; The waste water of power house blowoff basin (1) is by wet-pit (5), the waste water that the waste water in sanitary sewage pond (2) reclaims pond (3) overflow by a small amount of overflow water and the industry of purifying domestic sewage station (4) and three closed loop mini system generations is aggregated into the overflow type water reservoir (6) in the waste water total system, beat to settling pond (12) by submerged pump (7), middle through adding the dosing processing of alum system, be drained into the make up water of cooling tower (14) through valveless filtering pool (13) then as recirculated water, and can carry out moisturizing with small pump (15) as required, in recirculated water, add a certain amount of sterilant simultaneously, water quality stabilizer, and pass through the dosage control concentration rate in 10 times of moisturizing.
2, zero emission method of wastewater according to claim 1, it is characterized in that: the described alum system that adds is made up of storage alum case (8), alum batch meter (9), alum solution case (10) and alum dosing pump (11), the opening, stop of the flow control alum dosing pump by waste line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115859 CN1132786C (en) | 2000-05-26 | 2000-05-26 | Process without drainage of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115859 CN1132786C (en) | 2000-05-26 | 2000-05-26 | Process without drainage of waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1280958A CN1280958A (en) | 2001-01-24 |
| CN1132786C true CN1132786C (en) | 2003-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00115859 Expired - Fee Related CN1132786C (en) | 2000-05-26 | 2000-05-26 | Process without drainage of waste water |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694351B (en) * | 2009-09-07 | 2011-12-21 | 青岛科技大学 | Intelligent industrial circulation water-cooling system |
| CN102951711B (en) * | 2011-08-25 | 2015-06-24 | 中国石油化工集团公司 | Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene |
| CN102442740B (en) * | 2011-10-26 | 2012-12-26 | 文安县天华密度板有限公司 | Processing method for zero discharge of wood chip washing waste water |
| CN103523880B (en) * | 2013-10-16 | 2014-12-10 | 高铁强 | Spunlace nonwoven sewage treatment additive |
| CN110532503B (en) * | 2019-08-28 | 2022-11-22 | 西安西热水务环保有限公司 | Method for calculating water supplementing amount and concentration ratio of slag water zero-overflow system |
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| CN1280958A (en) | 2001-01-24 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee | ||
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Address after: Lin Jia Dai Cun town lake in Xiaoshan District of Hangzhou city in Zhejiang Province Patentee after: Xiaoshan Hangzhou Linjiang industry and Trade Co., Ltd. Address before: Department of biotechnology, Xiaoshan power plant, Zhejiang Patentee before: Linjiang Industry and Trade Co Ltd, Xiaoshan City |
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| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU XIAOSHAN LINJIANG INDUSTRY AND TRADE CO., Free format text: FORMER NAME: XIAOSHAN LINJIANG INDUSTRIAL + COMMERCIAL CO., LTD. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Dongfa Environmental Protection Engineering Co., Ltd. Assignor: Xiaoshan Hangzhou Linjiang industry and Trade Co., Ltd. Contract fulfillment period: 2004.5.25 to 2020.5.24 contract change Contract record no.: 2009330002835 Denomination of invention: Zero emission method of wastewater in lead-zinc metallurgical refinery Granted publication date: 20031231 License type: Exclusive license Record date: 20091120 Assignee: Zhejiang Dongfa Environmental Protection Engineering Co., Ltd. Assignor: Xiaoshan Hangzhou Linjiang industry and Trade Co., Ltd. Contract fulfillment period: 2004.5.25 to 2020.5.24 Contract record no.: 2009330002835 Denomination of invention: Zero emission method of wastewater in lead-zinc metallurgical refinery Granted publication date: 20031231 License type: Exclusive license Record date: 20091120 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2004.5.25 TO 2020.5.24; CHANGE OF CONTRACT Name of requester: ZHEJIANG DAFA ENVIRONMENTAL PROTECTION ENGINEERING Effective date: 20091120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031231 Termination date: 20190526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |