CN104047353A - Membrane separation technology-based rainwater sewage interception device and method - Google Patents

Membrane separation technology-based rainwater sewage interception device and method Download PDF

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Publication number
CN104047353A
CN104047353A CN201410257184.XA CN201410257184A CN104047353A CN 104047353 A CN104047353 A CN 104047353A CN 201410257184 A CN201410257184 A CN 201410257184A CN 104047353 A CN104047353 A CN 104047353A
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water
membrane separation
filter
rainwater
sewage
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CN201410257184.XA
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刘国庆
姚骏
王荣合
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SHENZHEN TEXEN SCIENCE & TECHNOLOGY WATER SYSTEM ENGINEERING Co Ltd
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SHENZHEN TEXEN SCIENCE & TECHNOLOGY WATER SYSTEM ENGINEERING Co Ltd
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Priority to CN201410257184.XA priority Critical patent/CN104047353A/en
Publication of CN104047353A publication Critical patent/CN104047353A/en
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Abstract

The invention provides a membrane separation technology-based rainwater sewage interception device and method. The rainwater sewage interception device comprises a catch basin, an overflow device, a membrane separation device, a filtered water reservoir, a filtered water control device and a backwash device. The membrane separation technology-based rainwater sewage interception device and method provided by the invention have the beneficial effects that the membrane separation technology-based rainwater sewage interception device and method can effectively remove the combined sewage in a rainstorm period or the surface source pollution caused by rainwater overflowing, a water body is protected to be clean and transparent, and the pollution is reduced furthest; the membrane separation technology-based rainwater sewage interception device and method can be applied to urban drainage, water body protection, water environment repair and the like, and can be used for removing pollutants such as particles, suspended matter, organic matter and heavy metal in water, thus achieving the aim of water body protection.

Description

Intercepting pollution for rainwater device and method based on membrane separation technique
Technical field
The present invention relates to water treatment field, relate in particular to the intercepting pollution for rainwater device and method based on membrane separation technique.
Background technology
Take Shenzhen as example, according to Shenzhen's environmental aspect communique fourth quarter in 2013, show, " Long Ganghe and salt pan river matter reach national surface water V class standard to river, Shenzhen, and other trunk river middle and lower reaches water quality are inferior to V class standard, and major pollutants are ammonia nitrogen and total phosphorus.Compare with same period last year, imperial hilllock river matter remains V class; Salt pan river matter becomes V class from II class, and Shawan river matter classification becomes bad V class from IV class, the obvious variation of water quality; Large Shahe water quality becomes bad V class from V class, and water quality is variation to some extent; Buji river and Xixiang river matter degree of contamination significantly increase the weight of, and river, Xinzhou degree of contamination obviously increases the weight of, and river, He He Feitian, Pingshan degree of contamination increases the weight of to some extent; Feng Tang river degree of contamination obviously alleviates, and river, He Hehuang hilllock, Guanlan degree of contamination alleviates to some extent; The female river matter of Shenzhen River, Mao Zhouhe and king kept stable ".
Rainfall is carried a large amount of pollutants and is flowed into river, forms and significantly pollutes black Huang and champac line of demarcation; The pollution of the ocean of rainwater, causes dolphin dead.Therefore, how Control the Plan Pollution Sources, is the basic of protection water quality of river.
In the < < of Ministry of Water Resources water development planning (2011-2015 years) > >, point out, investment on water conservancy 1.8 trillion, be mainly used in flood, drought and water shortage, farmland waterpower and countryside potable water security, wherein flood control will be over 1,000,000,000,000 with pipe-networks engineering infrastructure investment.Environmental Protection Department < < national environmental protection " 12 " planning > > proposes, 4,360 hundred million yuan of water pollution control investments, and wherein pipe network investment is 3,200 hundred million yuan.The notice > > of the < < of housing construction portion whole nation urban water supply transformation of facility and construction " 12 " planning and the year two thousand twenty long-range objectives proposes, 4,100 hundred million yuan of urban water supply gross investments, wherein pipe network investment 2,678 hundred million.The water utilities gross investment of three ministries and commissions during 12 reaches 2.65 trillion.In addition, the < < water prevention and cure of pollution action plan > > of 2014, proposition, on the bases of 12 planning, then increases investment and reaches 2,000,000,000,000, i.e. total water utilities investment will reach 4.65 trillion.
Water environment treatment is the weakness of China environmental protection, dropped into nearly 30,000,000,000 yuan, but quality of water environment does not improve as administered Dian Chi.Therefore, invent a kind of novel facility, for Control the Plan Pollution Sources, to reach the object of protection water body.
The hinge position of catchpit in whole shutoff type combined drainage system is the crucial structure of whole system.The selection of catchpit form and in-built whether reasonable, holds the balance for the impact of dam effect and the overflow capability of closure works system.At present the more catchpit of domestic and international application comprise great-jump-forward catchpit, the slot type catchpit that dams, side weir formula catchpit, eddy flow valve catchpit etc., in general, catchpit and modified thereof have all been tending towards ripe in technology and application, obtained the comparatively desirable effect of damming, but be all only focus on the effect of waterpower aspect and ignored sewage and the severe contamination that brings to receiving water body of heavy rain early-stage rainwater in dry season.External correlative study is carried out, and also has the report of Related product, as the product J elleyfish Filter of American I mbrium Systems company exploitation etc., but still is in the junior stage.At present, with the research and development of the Novel flow-stopping well of dirt-removing functions, yet there are no relevant report at home.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of intercepting pollution for rainwater device based on membrane separation technique.
The invention provides a kind of intercepting pollution for rainwater device based on membrane separation technique, comprising:
Catchpit: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant;
Overflow mechanism: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Membrane separation device: form the rear water of filter for the sewage of overflow is filtered;
Water storage cistern after filter: for storing water after the filter that described membrane separation device discharges;
Water controller after filter: when the water level of water storage cistern is lower than described membrane separation device water outlet water level after filter, controls described membrane separation device the rear water of filter is entered after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Back purge system: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
As a further improvement on the present invention, this intercepting pollution for rainwater device also comprises:
Mud mud discharging device dams: for mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
As a further improvement on the present invention, this intercepting pollution for rainwater device also comprises:
Storage cistern dewatering installation: for the water in water storage cistern after described filter is entered to natural water body.
As a further improvement on the present invention, described overflow mechanism comprises overflow weir, bleed off pipe, bypass channel, flow-limiting valve.
As a further improvement on the present invention, described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
As a further improvement on the present invention, this intercepting pollution for rainwater device also comprises overflow sewage storage cell, and described overflow sewage storage cell exceeds the dam sewage of ability of described catchpit for storing, and described membrane separation device is positioned at described overflow sewage storage cell.
As a further improvement on the present invention, described catchpit is provided with inspection hole, and described inspection hole is for checking, clear up rubbish and maintenance catchpit.
The present invention also provides a kind of intercepting pollution for rainwater method based on membrane separation technique, comprises the steps:
The step of damming: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant;
Overflow step: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Filtration step: by membrane separation device, the sewage of overflow is filtered to the rear water of formation filter, water after filter is entered to the rear water storage cistern of filter;
Control step: when after filter, the water level of water storage cistern is lower than described membrane separation device water outlet water level, control described membrane separation device by filter afterwards water enter after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Backwash step: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
As a further improvement on the present invention, this intercepting pollution for rainwater method also comprises: the mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
As a further improvement on the present invention, described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
The invention has the beneficial effects as follows: the intercepting pollution for rainwater device and method based on membrane separation technique of the present invention can effectively be removed the combined sewage of storm period or the pollution of area source that stormwater overflow brings, protection water body is as clear as crystal, reduces to greatest extent to pollute; And the present invention can be widely used in urban sewerage and drainage, water protection, water environment reparation etc., carry out the removal of the pollutant such as particle, suspension, organic matter, heavy metal in water, from reaching the object of water protection.
Accompanying drawing explanation
Fig. 1 is intercepting pollution for rainwater principle of device block diagram of the present invention.
Fig. 2 is the schematic diagram of an embodiment of intercepting pollution for rainwater device of the present invention.
Fig. 3 is the schematic diagram of another embodiment of intercepting pollution for rainwater device of the present invention.
The specific embodiment
As shown in Figure 1, the invention discloses a kind of intercepting pollution for rainwater device based on membrane separation technique, comprising:
Catchpit: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant;
Overflow mechanism: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Membrane separation device: form the rear water of filter for the sewage of overflow is filtered;
Water storage cistern after filter: for storing water after the filter that described membrane separation device discharges;
Water controller after filter: when the water level of water storage cistern is lower than described membrane separation device water outlet water level after filter, controls described membrane separation device the rear water of filter is entered after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Back purge system: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
This intercepting pollution for rainwater device also comprises the mud mud discharging device that dams, and the mud mud discharging device that dams is for mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
This intercepting pollution for rainwater device also comprises storage cistern dewatering installation, and this storage cistern dewatering installation is for entering natural water body by the water in water storage cistern after described filter.
Described overflow mechanism comprises overflow weir, bleed off pipe, bypass channel, flow-limiting valve.
Described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
This intercepting pollution for rainwater device also comprises overflow sewage storage cell, and described overflow sewage storage cell exceeds the dam sewage of ability of described catchpit for storing, and described membrane separation device is positioned at described overflow sewage storage cell.
Described catchpit is provided with inspection hole, and described inspection hole is for checking, clear up rubbish and maintenance catchpit.
The invention also discloses a kind of intercepting pollution for rainwater method based on membrane separation technique, comprise the steps:
The step of damming: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant
Overflow step: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Filtration step: by membrane separation device, the sewage of overflow is filtered to the rear water of formation filter, water after filter is entered to the rear water storage cistern of filter;
Control step: when after filter, the water level of water storage cistern is lower than described membrane separation device water outlet water level, control described membrane separation device by filter afterwards water enter after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Backwash step: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
This intercepting pollution for rainwater method also comprises: the mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
Described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
Sewage in the present invention comprises combined sewage and rainwater, and in the present invention, naturally water body comprises the water body in river, lake, reservoir, ocean.
Membrane separation device comprises water inlet and delivery port, and membrane separation device can be the various forms such as integral type, combined type, on-the-spot construction formula.Membrane separation device can be metal, plastics, concrete, steel bar concrete, masonry etc.
After filter, water storage cistern can be the various water storage facilities such as underground type, closed, open type or Underground pipeline type, and after filter, water storage cistern has independent Inlet and outlet water passage.
Water after filter in water storage cistern can directly enter natural water body, or enters natural water body after sterilization.
Water after filter in water storage cistern can enter sewage conduct, delivers to Wastewater Treatment Plant.
After filter, water storage cistern provides backwash water for membrane separation device; Water storage cistern back washing strength after filter, can fix, and also can change, and also can determine according to membrane material and facility; Water storage cistern backwashing time after filter, can fix, and also can change, and also can determine according to membrane material and facility; Water storage cistern backwash head after filter, can fix, and also can change, and also can determine according to membrane material and facility; Water storage cistern backwash mode after filter, can fix, and also can change, and also can determine according to membrane material and facility.
Holding back mud is from film separation facilities, also can be from water spoil disposal after filter; Hold back mud and can enter after the rain sewage network, hold back regularly labor cleaning of mud, holding back mud can regeneration.Holding back sludge system can have monitoring system, and holding back sludge system can have automatic control system, and holding back sludge system can have water level control system, and holding back sludge system can have deodoration system, and holding back sludge system can have the anti-people and animals system of falling.
Catchpit of the present invention can, by adding flocculant, increase and hold back efficiency.Intercepting pollution for rainwater device of the present invention can increase air supporting aerating system, cyclone separator, vacuum suction apparatus.
After heavy rain, after filter, the water reverse flow of water storage cistern, to membrane separation device, is carried out membrane separation device backwash.
After heavy rain, dam mud and backwashing sludge enter municipal wastewater pipe network, process to Wastewater Treatment Plant.
Water storage cistern after filter, arranges water level awareness apparatus, for perception SEA LEVEL VARIATION.
In film filter, current and water level awareness apparatus are set, for the perception water yield (or amount of precipitation), change.
At catchpit place, current awareness apparatus is set, for the perception water yield, change.
At membrane separation device place, sludge lifting pump is set, for promoting, dam mud to Wastewater Treatment Plant.Or at membrane separation device place, mud holding pond is set, for storage, hold back mud, and regularly remove and hold back mud.
After drainage, storage cistern place, controls by water level, at heavy rain, carries out automatic backwash later, also lifting pumping plant can be set, for membrane separation device is carried out to backwash.
At membrane separation device place, control centre is set, for controlling automation technolo operation.
As shown in Figure 2, as one embodiment of the present of invention, in Fig. 2, A represents combined sewage or rainwater water, and B represents combined sewage or rainwater water inlet pipe, and C represents the combined sewage or the early-stage rainwater gutter that dam, to Wastewater Treatment Plant; D represents overflow weir, according to the interception ratio design of catchpit; E represents one way valve or flap valve, for back flushing draining, does not allow combined sewage to enter overflow sewage storage cell; F represents overflow sewage storage cell, G represents membrane separation device, H represents to filter rear water and enters the rear water storage cistern of filter, I represents to filter rear water storage cistern, J represents to filter the gutter of rear water storage cistern, K represents to filter rear water and is disposed to water body nearby, and L represents catchpit inspection hole, for checking, clear up rubbish and maintenance catchpit; M represents to filter rear water backwashing backwater, and N represents that backwashing water rinses the dirt on membrane separation device get off; P represents to filter rear sewage and back flushing Sewage outlet, is check valve-type structure.
As shown in Figure 3, as an alternative embodiment of the invention, in Fig. 3, A represents combined sewage or rainwater water, and B represents combined sewage or rainwater water inlet pipe, and C represents the combined sewage or the early-stage rainwater gutter that dam, to Wastewater Treatment Plant; D represents overflow weir, according to the interception ratio design of catchpit; E represents one way valve or flap valve, for back flushing draining, does not allow combined sewage to enter overflow sewage storage cell; F represents overflow sewage storage cell, G represents membrane separation device, H represents to filter rear water and enters the rear water storage cistern of filter, I represents to filter rear water storage cistern, J represents to filter the gutter of rear water storage cistern, K represents to filter rear water and is disposed to water body nearby, and L represents catchpit inspection hole, for checking, clear up rubbish and maintenance catchpit; M represents to filter rear water backwashing backwater, and N represents that backwashing water rinses the dirt on membrane separation device get off; O represents sewage pump, during for back flushing, sewage is discharged; P represents to filter rear sewage and back flushing Sewage outlet, is check valve-type structure; Q represents foul water pump suction water pipe, from overflow sewage storage cell, fetches water; R represents foul water pump outlet pipe, filtering mud and backwashing water, enters Wastewater Treatment Plant.
Intercepting pollution for rainwater device and method based on membrane separation technique of the present invention can effectively be removed the combined sewage of storm period or the pollution of area source that stormwater overflow brings, and protection water body is as clear as crystal, reduces to greatest extent to pollute; And the present invention can be widely used in urban sewerage and drainage, water protection, water environment reparation etc., carry out the removal of the pollutant such as particle, suspension, organic matter, heavy metal in water, from reaching the object of water protection.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. the intercepting pollution for rainwater device based on membrane separation technique, is characterized in that, comprising:
Catchpit: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant;
Overflow mechanism: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Membrane separation device: form the rear water of filter for the sewage of overflow is filtered;
Water storage cistern after filter: for storing water after the filter that described membrane separation device discharges;
Water controller after filter: when the water level of water storage cistern is lower than described membrane separation device water outlet water level after filter, controls described membrane separation device the rear water of filter is entered after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Back purge system: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
2. intercepting pollution for rainwater device according to claim 1, is characterized in that, this intercepting pollution for rainwater device also comprises:
Mud mud discharging device dams: for mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
3. intercepting pollution for rainwater device according to claim 1, is characterized in that, this intercepting pollution for rainwater device also comprises:
Storage cistern dewatering installation: for the water in water storage cistern after described filter is entered to natural water body.
4. intercepting pollution for rainwater device according to claim 1, is characterized in that, described overflow mechanism comprises overflow weir, bleed off pipe, bypass channel, flow-limiting valve.
5. intercepting pollution for rainwater device according to claim 1, it is characterized in that, described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
6. intercepting pollution for rainwater device according to claim 1, it is characterized in that, this intercepting pollution for rainwater device also comprises overflow sewage storage cell, and described overflow sewage storage cell exceeds the dam sewage of ability of described catchpit for storing, and described membrane separation device is positioned at described overflow sewage storage cell.
7. intercepting pollution for rainwater device according to claim 6, is characterized in that, described catchpit is provided with inspection hole, and described inspection hole is for checking, clear up rubbish and maintenance catchpit.
8. the intercepting pollution for rainwater method based on membrane separation technique, is characterized in that, comprises the steps:
The step of damming: dam for collecting sewage, the sewage damming is entered to Wastewater Treatment Plant;
Overflow step: for carrying out overflow to exceeding the dam sewage of ability of described catchpit, the sewage of overflow enters membrane separation device;
Filtration step: by membrane separation device, the sewage of overflow is filtered to the rear water of formation filter, water after filter is entered to the rear water storage cistern of filter;
Control step: when after filter, the water level of water storage cistern is lower than described membrane separation device water outlet water level, control described membrane separation device by filter afterwards water enter after described filter in water storage cistern; When the water level of water storage cistern is higher than described membrane separation device water outlet water level after filter, controls described membrane separation device water after filter is entered in natural water body;
Backwash step: for by the water reverse flow of water storage cistern after described filter to described membrane separation device, described membrane separation device is carried out to backwash.
9. intercepting pollution for rainwater method according to claim 8, is characterized in that, this intercepting pollution for rainwater method also comprises: the mud that described catchpit is dammed and described membrane separation device is carried out to the mud that backwash obtains enter Wastewater Treatment Plant.
10. intercepting pollution for rainwater method according to claim 8, it is characterized in that, described membrane separation device adopts a kind of filtration the in ultrafiltration, nanofiltration, counter-infiltration, micro-filtration, and the membrane material in described membrane separation device comprises organic film, inoranic membrane, ceramic membrane, polymeric membrane, multilayer film.
CN201410257184.XA 2014-06-11 2014-06-11 Membrane separation technology-based rainwater sewage interception device and method Pending CN104047353A (en)

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CN105347438A (en) * 2014-12-18 2016-02-24 青岛木力新能源科技有限公司 Sewage treatment equipment constructed by using reverse-osmosis hydrophilic material
CN105585074A (en) * 2014-12-18 2016-05-18 青岛木力新能源科技有限公司 Sea water desalting equipment made of hydrophilic materials
CN105585073A (en) * 2014-12-18 2016-05-18 青岛木力新能源科技有限公司 Sea water desalination project built through reverse-osmosis hydrophilic materials
CN105084597A (en) * 2015-08-26 2015-11-25 北京交通大学 Treatment device and collection method for rainwater
CN105084597B (en) * 2015-08-26 2017-11-14 北京交通大学 A kind of rainwater treatment device and collection method
CN105256875A (en) * 2015-08-31 2016-01-20 清华大学 Levee-type initial stage rainwater interception-storage-processing combined system
CN105178415A (en) * 2015-09-10 2015-12-23 清华大学深圳研究生院 System and method for disposal of sediment in combined drainage pipeline
CN106149852A (en) * 2016-07-28 2016-11-23 深圳朝伟达科技有限公司 Intercepting pollution for rainwater device based on membrane separation technique
CN106284613A (en) * 2016-07-28 2017-01-04 深圳朝伟达科技有限公司 Intercepting pollution for rainwater method based on membrane separation technique
WO2018018656A1 (en) * 2016-07-28 2018-02-01 深圳朝伟达科技有限公司 Rainwater sewage interception device based on membrane separation technique
WO2018018657A1 (en) * 2016-07-28 2018-02-01 深圳朝伟达科技有限公司 Rainwater sewage interception method based on membrane separation technique
CN111424778A (en) * 2020-03-23 2020-07-17 武汉圣禹排水系统有限公司 Sewage regulation and storage method based on vacuum water inflow and electronic equipment

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Application publication date: 20140917