CN102863092A - Method for recycling rain - Google Patents
Method for recycling rain Download PDFInfo
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- CN102863092A CN102863092A CN2011101861377A CN201110186137A CN102863092A CN 102863092 A CN102863092 A CN 102863092A CN 2011101861377 A CN2011101861377 A CN 2011101861377A CN 201110186137 A CN201110186137 A CN 201110186137A CN 102863092 A CN102863092 A CN 102863092A
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- rainwater
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Abstract
The invention relates to a method for recycling rain, characterized in that: rain falls into a canopy and then enters into a rain collecting tank, the rain is pumped into a grid decontamination area by a rain lift pump, the rain enters into a PAC clarification area after passing through the grids for decontamination, the rain enters into a flat membrane microfiltration area after passing through the clarification area, and after passing through the microfiltration area, finally the rain is pumped into a clear water tank disinfection area for disinfection. According to the invention, by the recycle of the whole system, the rain reaches a certain standard, and water resource is saved.
Description
Technical field
The invention belongs to rainwater reutilization technology field, particularly a kind of greening, sweep, flush the toilet, the rainwater recycling is collected in the field such as carwash by awning method.
Background technology
Ubiquity lack of water phenomenon in the world, China is that a water resources is relatively poor, extremely inhomogeneous country distributes again.Because the difference of distribution of water resources, and day by day the increasing the weight of of water resource pollution, the water resources in city is being faced with not enough and the problem such as shortage, and rainwater is as a kind of cleaning water source, it is carried out effective collection and treatment recycling, have the benefits such as significant society, economy, ecology, environmental protection.
To the not high greening of water quality requirement, sweep, flush the toilet, the life aspect such as carwash, and the area of water quality type lack of water, can have a kind of simple efficiently rainwater-collecting to process re-use device is problem demanding prompt solution.Can improve water utilization rate by collection, processing, utilization to rainwater, meet the development trend of conservation-minded society.
Summary of the invention
Goal of the invention: the objective of the invention is in order to overcome deficiency of the prior art, a kind of simple efficiently rainwater recycling treatment process is provided.
Technical scheme: rainwater reuse treatment process of the present invention, rainwater enters the rainwater-collecting pond after falling into awning, by the rainwater lift pump rainwater is pumped into the grid decontamination district, rainwater enters the PAC settling section through behind the grid decontamination, rainwater enters flat sheet membrane micro-filtration district after passing through settling section, disinfects finally by by pump rainwater being pumped into the clean water basin sterilizating area behind the mistake micro-filtration district.
Rainwater after treatment can reach CODcr＜30mg/1, SS＜5mg/1.
In the grid decontamination district, PAC settling section and flat sheet membrane micro-filtration district be provided with discharging system, regularly effluxes foreign material.
Between PAC settling section and dull and stereotyped membrane microfiltration district, be provided with return-flow system, can take full advantage of the mixed solution that is entered flat sheet membrane micro-filtration district by the PAC settling section.
In whole rainwater reuse treating processes, control by PLC.
Rainwater treatment device is by processing the clean rainwater of collecting, and water outlet is used for the not high greening of water quality requirement, sweeps, flushes the toilet, carwash etc.By the collection of rainwater, can play peak-clipping and valley-filling on the one hand, reduce Rainfall runoff, alleviate Storm Sewer Network water discharge pressure in flood season.On the other hand, the rainwater after the processing can be used for the not high place of water quality requirement, can reduce the consumption of tap water, saving water resource.
Rainwater treatment device is applicable to the area of water quality type lack of water, selected treatment process efficient stable, and processing cost is cheap, and stable effluent quality is reliable.Can improve water utilization rate by collection, processing, utilization to rainwater, meet the development trend of conservation-minded society.
The former water of rainwater treatment device is drowning through the awning of abandoned stream, pollution level is low, the principal pollutant factor is fine particle and a small amount of organism, rainwater treatment device is integrated grid, coagulation clarification, membrane treatment process, it is short to have flow process, and it is good to process effluent quality, and level of automation is high, characteristics easy and simple to handle, that the line service amount is few.
Rainwater enters treatment unit after pump promotes, at first screen out larger particulate matter protection subsequent processing device by basket grid.Dosing coagulant PAC in the machinery clarification agitated pool makes fine suspension, colloidalmaterial in the water flocculate into larger flco, guarantees deliquescent COD clearance.The effluent adopting membrane filtration is held back the colloidalmaterial in the rainwater to greatest extent, guarantees to process water outlet COD and satisfies the reuse requirement.The mixed solution partial reflux increases concentration of suspension on the one hand to the clarification agitated pool in the membrane cisterna, and the enhanced coagulation effect can be given full play to the effect of coagulating agent on the other hand, reduces on the whole the medicament usage quantity.When intrasystem suspended substance reaches finite concentration, when resistance of membrane filtration is excessive, suitably discharge unnecessary mud by mud valve.
Be provided with aeration tube in the membrane cisterna, mixing water quality prevents sludge settling on the one hand, satisfies on the other hand the requirement that membrane module gas is cleaned.Membrane element is selected flat sheet membrane, has compact structure, and intensity is high, and membrane module bottom is provided with aeration tube, and the gas-liquid two-phase disturbance of film surface is violent, and air-flow carries out continuous erosion to the film surface, is difficult for forming the silt junction phenomena on the film surface, does not need to carry out special back flushing.Film cleans take the gas scouring and is aided with (usually annual) online matting of certain frequency as main.Matting adopts 1% oxalic acid solution, cleaning strength 16L/100m2.Consider and clean frequency and dosing, wouldn't establish special matting facility, matting is to clean as main manually.
The rainwater treatment device level of automation is high, adopts PLC control, and man-machine interface adopts touch-screen.The running statuses such as power-equipment water pump, blower fan adopt switching value to show, the analog quantity numerical value such as liquid level, filtration resistance, residual chlorine amount show.Whole system can be moved automatically according to the water collecting basin liquid level, is provided with power-equipment fault alarm, liquid level overload alarm, filtration resistance overload alarm, calls out manual intervention.The PLC Controlling System is furnished with 485 communication modules, can realize remote control, need not staff on duty, carries out repair and maintenance after only needing regular visit or receiving failure alarm signal.
Rainwater treatment device adopts Integration Design, main treatment facility integrative packaging.Equipment making is superior, and main raw all adopts stainless steel.Intrasystem process pipe adopts stainless steel, and chemical feed pipe, sterilizing tube adopt the PE material, and it is attractive in appearance that pipelining is straight, and presses the colour code difference according to the medium situation.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: through the recycling of whole system, rainwater reaches certain standard, has saved water resources.
Embodiment
Rainwater reuse treatment process of the present invention, rainwater enters the rainwater-collecting pond after falling into awning, by the rainwater lift pump rainwater is pumped into the grid decontamination district, rainwater enters the PAC settling section through behind the grid decontamination, rainwater enters flat sheet membrane micro-filtration district after passing through settling section, disinfects finally by by pump rainwater being pumped into the clean water basin sterilizating area behind the mistake micro-filtration district; Rainwater after treatment can reach CODcr＜30mg/1, SS＜5mg/1; In the grid decontamination district, PAC settling section and flat sheet membrane micro-filtration district be provided with discharging system, regularly effluxes foreign material; Between PAC settling section and dull and stereotyped membrane microfiltration district, be provided with return-flow system, can take full advantage of the mixed solution that is entered flat sheet membrane micro-filtration district by the PAC settling section; In whole rainwater reuse treating processes, control by PLC.Rainwater enters treatment unit after pump promotes, at first screen out larger particulate matter by basket grid, dosing coagulant PAC in machinery clarification agitated pool, make the fine suspension in the water, colloidalmaterial flocculates into larger flco, guarantee deliquescent COD clearance, the effluent adopting membrane filtration, hold back to greatest extent the colloidalmaterial in the rainwater, guarantee to process water outlet COD and satisfy the reuse requirement, the mixed solution partial reflux increases concentration of suspension, enhanced coagulation effect on the one hand to the clarification agitated pool in the membrane cisterna, can give full play on the other hand the effect of coagulating agent, reduce on the whole the medicament usage quantity.
Claims (5)
1. rainwater reuse treatment process, it is characterized in that: rainwater enters the rainwater-collecting pond after falling into awning, by the rainwater lift pump rainwater is pumped into the grid decontamination district, rainwater enters the PAC settling section through behind the grid decontamination, rainwater enters flat sheet membrane micro-filtration district after passing through settling section, disinfects finally by by pump rainwater being pumped into the clean water basin sterilizating area behind the mistake micro-filtration district.
2. rainwater reuse treatment process according to claim 1, it is characterized in that: rainwater after treatment can reach CODcr＜30mg/1, SS＜5mg/1.
3. rainwater reuse treatment process according to claim 1 is characterized in that: in the grid decontamination district, PAC settling section and flat sheet membrane micro-filtration district be provided with discharging system, regularly effluxes foreign material.
4. rainwater reuse treatment process according to claim 1 is characterized in that: be provided with return-flow system between PAC settling section and dull and stereotyped membrane microfiltration district, can take full advantage of the mixed solution that is entered flat sheet membrane micro-filtration district by the PAC settling section.
5. rainwater reuse treatment process according to claim 1 is characterized in that: in whole rainwater reuse treating processes, control by PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101861377A CN102863092A (en) | 2011-07-05 | 2011-07-05 | Method for recycling rain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101861377A CN102863092A (en) | 2011-07-05 | 2011-07-05 | Method for recycling rain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102863092A true CN102863092A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101861377A Pending CN102863092A (en) | 2011-07-05 | 2011-07-05 | Method for recycling rain |
Country Status (1)
| Country | Link |
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| CN (1) | CN102863092A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064453A (en) * | 2015-08-12 | 2015-11-18 | 重庆电子工程职业学院 | Fault diagnosis method for water recycling control system |
| CN106638774A (en) * | 2016-12-13 | 2017-05-10 | 上海市建工设计研究院有限公司 | Rainwater collection and treatment device and use method thereof |
| WO2017080435A1 (en) * | 2015-11-10 | 2017-05-18 | 陆晨燕 | Urban rainwater treatment technology |
| CN107447805A (en) * | 2016-05-31 | 2017-12-08 | 江苏宜安建设有限公司 | A kind of building rainwater recycling system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318718A (en) * | 2007-06-05 | 2008-12-10 | 北京科净源环宇科技发展有限公司 | Bionic reinforced scouring method for landscape water environment |
| CN201305517Y (en) * | 2008-11-12 | 2009-09-09 | 恩那社(上海)水处理系统有限公司 | System changing rain floods to drinking water by membrane method |
| CN201520703U (en) * | 2009-09-10 | 2010-07-07 | 北京市水利科学研究所 | Rainwater purification system at rainwater outlet to river |
-
2011
- 2011-07-05 CN CN2011101861377A patent/CN102863092A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318718A (en) * | 2007-06-05 | 2008-12-10 | 北京科净源环宇科技发展有限公司 | Bionic reinforced scouring method for landscape water environment |
| CN201305517Y (en) * | 2008-11-12 | 2009-09-09 | 恩那社(上海)水处理系统有限公司 | System changing rain floods to drinking water by membrane method |
| CN201520703U (en) * | 2009-09-10 | 2010-07-07 | 北京市水利科学研究所 | Rainwater purification system at rainwater outlet to river |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064453A (en) * | 2015-08-12 | 2015-11-18 | 重庆电子工程职业学院 | Fault diagnosis method for water recycling control system |
| WO2017080435A1 (en) * | 2015-11-10 | 2017-05-18 | 陆晨燕 | Urban rainwater treatment technology |
| CN107447805A (en) * | 2016-05-31 | 2017-12-08 | 江苏宜安建设有限公司 | A kind of building rainwater recycling system |
| CN106638774A (en) * | 2016-12-13 | 2017-05-10 | 上海市建工设计研究院有限公司 | Rainwater collection and treatment device and use method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |