CN102247728A - First rain treatment system - Google Patents
First rain treatment system Download PDFInfo
- Publication number
- CN102247728A CN102247728A CN2011100866299A CN201110086629A CN102247728A CN 102247728 A CN102247728 A CN 102247728A CN 2011100866299 A CN2011100866299 A CN 2011100866299A CN 201110086629 A CN201110086629 A CN 201110086629A CN 102247728 A CN102247728 A CN 102247728A
- Authority
- CN
- China
- Prior art keywords
- rain
- filtering ponds
- treatment system
- storage pool
- quick filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims description 29
- 239000000706 filtrate Substances 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 8
- 239000010841 municipal wastewater Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a first rain treatment system which comprises a first rain collecting system, a first rain storing pool, and a first rain filtering system which are communicated in sequence, wherein the first rain filtering system comprises a hydrocyclone, a rapid filter tank, and a water pump for pumping the first rain from the first rain storing pool into the cyclone separator; an underflow port of the hydrocyclone is connected to municipal sewage network pipelines, and an overflow port is connected to the rapid filter tank. Compared with the prior art, the beneficial effect of the invention is that the treatment capacity of the rainwater treatment system is improved.
Description
Technical field
The present invention relates to the rainwater treatment system, particularly relate to a kind of rain treatment system just.
Background technology
Chinese city city population collection degree height, the soil utilizes intensity big, and multiple draining system is also deposited, rainfall is big, the rainwater resource abundance faces on the one hand the harm of flood peak flood, and the pollution of area source problem brought of rainfall runoff has increased the weight of the deterioration of urban water-body water environment on the other hand.
Early-stage rainwater pollution of area source problem is the most outstanding in the separate system pipe network system.The early-stage rainwater amount general trend of events is anxious, suspended material is many, pollutional load is high.Both economical effective method is to handle early-stage rainwater by quick filtration system, but there is easily obstruction in traditional rapid filter, and backwashing period is short, problems such as effluent quality instability.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rain treatment system just, attenuating early-stage rainwater pollution of area source.
A kind of rain treatment system just, comprise the first rain gathering system that is communicated with successively, first rain storage pool and first rain filtration system, wherein, described rain filtration system just comprises hydrocyclone, quick filtering ponds and the water pump that first rain is pumped into described hydrocyclone from first rain storage pool; The underflow opening of described hydrocyclone is connected with the municipal wastewater webmaster, overfall is connected with described quick filtering ponds.
Preferably, described quick filtering ponds and described rain storage pool just are the disjunctor pond, and described rain storage pool just is positioned at the bottom of described quick filtering ponds, and described quick filtering ponds are provided with the overfall that is communicated with described rain storage pool just.
Preferably, the delivery port of described quick filtering ponds is provided with valve, is used for rainwater behind the controlled filter and is back to just the rain storage pool or discharges by drainage pipeline.
Preferably.Described drainage pipeline is communicated with river course or landscape pond.
Preferably, described quick filtering ponds comprise first filtering ponds and second filtering ponds arranged side by side mutually, and the filtrate of filling in described first filtering ponds is quartz sand and active carbon, and the filtrate of filling in described second filtering ponds is a zeolite.
Preferably, described quick filtering ponds also comprise and make rainwater be evenly distributed on water distribution system on the filtrate.
Preferably, described quick filtering ponds also comprise back purge system.
Preferably, described back purge system comprises the backwash pipeline that is laid on described quick filtering ponds bottom, and the water inlet of described backwash pipeline is connected with the delivery port of described water pump by the controllable valve door.
Preferably, but described first filtering ponds and described second filtering ponds comprise at least three Xiao Chi of independent operating respectively, but each described Xiao Chi is equipped with the back purge system of independent operating.
Preferably, described rain gathering system just comprises rainfall pumping station and the first rain Vatch basin that is connected with described rainfall pumping station delivery port, be provided with just rain outlet and later stage stormwater overflow mouth during described first rain dams, the position of described later stage stormwater overflow mouth is higher than the described position of rain outlet just; Just the rain outlet is connected with described rain storage pool just, and described later stage stormwater overflow mouth is connected with the river course.
The present invention's beneficial effect compared with prior art is: before quick filtering ponds hydrocyclone is set early-stage rainwater is carried out preliminary treatment, filter behind the large particulate matter in the removal early-stage rainwater again, improved the disposal ability of rainwater treatment system.
Description of drawings
Fig. 1 is the system diagram of the first rain treatment system of the specific embodiment of the invention.
The specific embodiment
Contrast accompanying drawing and the present invention is explained in detail below in conjunction with preferred embodiment.
The first rain treatment system of present embodiment, comprise the first rain gathering system that is communicated with successively, first rain storage pool and first rain filtration system, wherein, described rain filtration system just comprises hydrocyclone, quick filtering ponds and the water pump that first rain is pumped into described cyclone separator from first rain storage pool; The underflow opening of described hydrocyclone is connected with the municipal wastewater webmaster, overfall is connected with described quick filtering ponds.
The concrete composition of the first rain treatment system of present embodiment, structure as shown in Figure 1, first rain gathering system by rainfall pumping station and just the rain Vatch basin form.There is rainfall pumping station mostly in the existing municipal rainwater treatment system, general existence two cover water pump systems are arranged, the first directly pumps into the water pump of river course or follow-up rainwater treatment system with rainwater, and it two is pumping plants that the underground water that will infiltrate in the pumping plant well pumps into the river course.Present embodiment can directly utilize existing rainfall pumping station also can independently set up, and the delivery port of rainfall pumping station is connected with first rain catch basin.Just the capacity of rain Vatch basin is adjusted according to actual needs,, during damming, first rain is provided with just rain outlet and later stage stormwater overflow mouth, and the position of later stage stormwater overflow mouth is higher than the position of rain outlet just; Just the rain outlet is connected with first rain storage pool and controls its current break-make by valve, and later stage stormwater overflow mouth is connected with the river course; Because just the position of rain outlet is lower than later stage stormwater overflow mouth, the initial stage of raining, after rainfall pumping station pumps into rainwater first rain Vatch basin, thereby rainwater flows into the collection of rain just of rain storage pool realization just by first rain outlet earlier, rainwater liquid level in the rain storage pool reached after the later stage stormwater overflow mouth originally, rainwater just begins to flow in the river course by later stage stormwater overflow mouth, and can stop the later stage rainwater to enter rain storage pool just this moment by the first rain outlet of valve closing.What need statement is, rain cell phone system portion just of the present invention is confined to said structure, also has the first rain gathering system of other structures in the prior art, and rain treatment system just of the present invention can adopt any first rain gathering system with first rain collecting function.
For saving the space, the first rain storage pool of present embodiment is the hypogee.
The first rain filtration system of present embodiment comprises hydrocyclone, quick filtering ponds and the water pump that first rain is pumped into described cyclone separator from first rain storage pool; Fast filtering ponds are the disjunctor pond with first rain storage pool, fast filtering ponds build in first rain storage pool above; The underflow opening of hydrocyclone is connected with the municipal wastewater webmaster, overfall is connected with described quick filtering ponds.The workflow of the dmp filter system of present embodiment is as follows, after just the rainwater in the rain storage pool is pumped to hydrocyclone, under the effect of hydrocyclone, just big particle diameter suspended particulate in the rain is separated, flow into the municipal wastewater webmaster from the underflow opening of hydrocyclone, small particle diameter suspended particulate and rainwater flow into quick filtering ponds from overfall and further filter; Filtering ponds are provided with the overfall that links to each other with first rain storage pool fast, when the water yield in the filtering ponds surpasses its disposal ability fast, pass back into rain storage pool just by overfall, the delivery port of filtering ponds is provided with by-pass valve control and water monitoring device fast, dispose when water outlet and to control it when up to standard and flow into river course or landscape pond, when effluent quality is not up to standard, control it and be back to just that the rain storage pool carries out circulating filtration through drainage pipeline.
In embodiment more specifically, filtering ponds are divided into first filtering ponds arranged side by side and second filtering ponds fast, and the filtrate of filling in first filtering ponds is quartz sand and active carbon, and the filtrate of filling in second filtering ponds is a zeolite.Preferably first filtering ponds and second filtering ponds are divided into Xiao Chi more than three or three with mixing the earth wall, each Xiao Chi all can work independently, and regulates the Xiao Chi number of operation during filtration according to actual needs with effect, but alternate run, and the filtering ponds that hocket clean.For guaranteeing filter effect, in the filtering ponds water distribution system can be set, can be evenly distributed on the filtrate by cloth water tank type rainwater, can regulate water inlet quantity simultaneously, determine optimization process efficient according to rainfall.
The quick also supporting back purge system that is provided with in rate pond of crossing of present embodiment, comprise the backwash pipeline that is laid on quick filtering ponds bottom, the water inlet of backwash pipeline is connected with the delivery port of aforementioned water pump by the controllable valve door, for preventing that filtrate from entering the backwash pipeline by flushing hole, available gauze coats the backwash pipeline, be divided under the situation of a plurality of independent Xiao Chi at quick filtering ponds, but the back purge system of each independent Xiao Chi also should independent operating, alternately filters and backwash between each Xiao Chi realizing.
As shown in Figure 1, the backwash process of present embodiment is as follows: the underground water pumping plant that at first starts rainfall pumping station, underground water in the pumping plant well is pumped into rain storage pool just, and at its backwash pipeline that pumps into quick filtering ponds, the sewage after the flushing enters the municipal wastewater webmaster then.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes are identical, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. rain treatment system at the beginning of a kind, comprise the first rain gathering system that is communicated with successively, first rain storage pool and first rain filtration system, it is characterized in that: described rain filtration system just comprises hydrocyclone, quick filtering ponds and the water pump that rainwater is pumped into described hydrocyclone from first rain storage pool; The underflow opening of described hydrocyclone is connected with the municipal wastewater webmaster, overfall is connected with described quick filtering ponds.
2. rain treatment system just according to claim 1, it is characterized in that: described quick filtering ponds and described rain storage pool just are the disjunctor pond, described rain storage pool just is positioned at the bottom of described quick filtering ponds, and described quick filtering ponds are provided with the overfall that is communicated with described rain storage pool just.
3. rain treatment system just according to claim 1 and 2, it is characterized in that: the delivery port of described quick filtering ponds is provided with valve, is used for rainwater behind the controlled filter and is back to just the rain storage pool or discharges by drainage pipeline.
4. rain treatment system just according to claim 3, it is characterized in that: described drainage pipeline is communicated with river course or landscape pond.
5. rain treatment system just according to claim 1 and 2, it is characterized in that: described quick filtering ponds comprise first filtering ponds and second filtering ponds arranged side by side mutually, the filtrate of filling in described first filtering ponds is quartz sand and active carbon, and the filtrate of filling in described second filtering ponds is a zeolite.
6. rain treatment system just according to claim 5 is characterized in that: described quick filtering ponds also comprise makes rainwater be evenly distributed on water distribution system on the filtrate.
7. rain treatment system just according to claim 5, it is characterized in that: described quick filtering ponds also comprise back purge system.
8. rain treatment system just according to claim 7, it is characterized in that: described back purge system comprises the backwash pipeline that is laid on described quick filtering ponds bottom, and the water inlet of described backwash pipeline is connected with the delivery port of described water pump by the controllable valve door.
9. rain treatment system just according to claim 7 is characterized in that: but described first filtering ponds and described second filtering ponds comprise at least three Xiao Chi of independent operating respectively, but each described Xiao Chi is equipped with the back purge system of independent operating.
10. rain treatment system just according to claim 1 and 2, it is characterized in that: described rain gathering system just comprises rainfall pumping station and the first rain Vatch basin that is connected with described rainfall pumping station delivery port, be provided with just rain outlet and later stage stormwater overflow mouth in the described rain Vatch basin just, the position of described later stage stormwater overflow mouth is higher than the described position of rain outlet just; Just the rain outlet is connected with described rain storage pool just, and described later stage stormwater overflow mouth is connected with the river course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100866299A CN102247728A (en) | 2011-04-07 | 2011-04-07 | First rain treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100866299A CN102247728A (en) | 2011-04-07 | 2011-04-07 | First rain treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102247728A true CN102247728A (en) | 2011-11-23 |
Family
ID=44975511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100866299A Pending CN102247728A (en) | 2011-04-07 | 2011-04-07 | First rain treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102247728A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408156A (en) * | 2013-08-30 | 2013-11-27 | 清华大学 | Method and system for comprehensively purifying, collecting and utilizing overpass rainwater |
| CN104631612A (en) * | 2015-02-11 | 2015-05-20 | 武汉圣禹排水系统有限公司 | Flushing system for rainwater regulation and storage tanks |
| 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 |
| CN106013388A (en) * | 2015-09-19 | 2016-10-12 | 王玮 | Water treatment system and water treatment method |
| CN106703156A (en) * | 2017-01-09 | 2017-05-24 | 中国水利水电科学研究院 | Early rainwater pollution prevention system and method for airport runway and parking apron |
| CN106759772A (en) * | 2017-01-09 | 2017-05-31 | 中国水利水电科学研究院 | A kind of early-stage rainwater runoff pollution prevents and treats system and method |
| CN106904759A (en) * | 2017-03-29 | 2017-06-30 | 广东亘盈环保实业集团有限公司 | A kind of urban rainwater processing unit |
| CN108240032A (en) * | 2018-01-12 | 2018-07-03 | 招商局重庆交通科研设计院有限公司 | The Initial Runoff of a kind of water quality and liquid level coordinated signals is collected and separate system |
| CN109518786A (en) * | 2018-11-23 | 2019-03-26 | 中铁四川生态城投资有限公司 | A kind of first rain control system of rainwash |
| CN109881756A (en) * | 2019-01-24 | 2019-06-14 | 无锡市政设计研究院有限公司 | A kind of combined sewage shuts off purification device |
| CN110359536A (en) * | 2019-07-30 | 2019-10-22 | 中国电建集团成都勘测设计研究院有限公司 | First rain collects greenery patches |
| CN110644592A (en) * | 2019-09-29 | 2020-01-03 | 郭奕玮 | A solid-liquid filtering device for a drainage system and a method of using the same |
| CN111589194A (en) * | 2020-06-18 | 2020-08-28 | 杭州银江环保科技有限公司 | The initial rainwater rapid filtration system and its filtration method of the IoT rainwater pumping station |
| CN112482533A (en) * | 2020-11-19 | 2021-03-12 | 北京市水利规划设计研究院 | Method for setting river channel rainwater drainage port and river channel rainwater drainage system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265866A (en) * | 2005-03-22 | 2006-10-05 | Tsukishima Kikai Co Ltd | Rainwater-retaining facilities for sewerage |
| CN201695439U (en) * | 2009-09-17 | 2011-01-05 | 上海盛尔环境科技有限公司 | Rainwater collection automatic treatment device |
-
2011
- 2011-04-07 CN CN2011100866299A patent/CN102247728A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265866A (en) * | 2005-03-22 | 2006-10-05 | Tsukishima Kikai Co Ltd | Rainwater-retaining facilities for sewerage |
| CN201695439U (en) * | 2009-09-17 | 2011-01-05 | 上海盛尔环境科技有限公司 | Rainwater collection automatic treatment device |
Non-Patent Citations (1)
| Title |
|---|
| JUNTAO JIN ET AL.: "A rapid treatment process for road rainwater runoff management", 《2010 ANNUAL CONFERENCE OF KOREA SOCIETY OF WATER AND WASTEWATER (KSWW): WATER KOREA》, 11 November 2010 (2010-11-11) * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408156A (en) * | 2013-08-30 | 2013-11-27 | 清华大学 | Method and system for comprehensively purifying, collecting and utilizing overpass rainwater |
| CN104631612A (en) * | 2015-02-11 | 2015-05-20 | 武汉圣禹排水系统有限公司 | Flushing system for rainwater regulation and storage tanks |
| 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 |
| CN106013388A (en) * | 2015-09-19 | 2016-10-12 | 王玮 | Water treatment system and water treatment method |
| CN106013388B (en) * | 2015-09-19 | 2018-03-16 | 中建伟力建设集团有限公司 | Municipal rain processing system |
| CN106703156A (en) * | 2017-01-09 | 2017-05-24 | 中国水利水电科学研究院 | Early rainwater pollution prevention system and method for airport runway and parking apron |
| CN106759772A (en) * | 2017-01-09 | 2017-05-31 | 中国水利水电科学研究院 | A kind of early-stage rainwater runoff pollution prevents and treats system and method |
| CN106904759A (en) * | 2017-03-29 | 2017-06-30 | 广东亘盈环保实业集团有限公司 | A kind of urban rainwater processing unit |
| CN108240032A (en) * | 2018-01-12 | 2018-07-03 | 招商局重庆交通科研设计院有限公司 | The Initial Runoff of a kind of water quality and liquid level coordinated signals is collected and separate system |
| CN108240032B (en) * | 2018-01-12 | 2023-07-14 | 招商局重庆交通科研设计院有限公司 | An initial runoff collection and diversion system with linkage control of water quality and liquid level |
| CN109518786A (en) * | 2018-11-23 | 2019-03-26 | 中铁四川生态城投资有限公司 | A kind of first rain control system of rainwash |
| CN109518786B (en) * | 2018-11-23 | 2023-12-08 | 中铁四川生态城投资有限公司 | A surface runoff initial rain control system |
| CN109881756A (en) * | 2019-01-24 | 2019-06-14 | 无锡市政设计研究院有限公司 | A kind of combined sewage shuts off purification device |
| CN110359536A (en) * | 2019-07-30 | 2019-10-22 | 中国电建集团成都勘测设计研究院有限公司 | First rain collects greenery patches |
| CN110644592A (en) * | 2019-09-29 | 2020-01-03 | 郭奕玮 | A solid-liquid filtering device for a drainage system and a method of using the same |
| CN111589194A (en) * | 2020-06-18 | 2020-08-28 | 杭州银江环保科技有限公司 | The initial rainwater rapid filtration system and its filtration method of the IoT rainwater pumping station |
| CN112482533A (en) * | 2020-11-19 | 2021-03-12 | 北京市水利规划设计研究院 | Method for setting river channel rainwater drainage port and river channel rainwater drainage system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102247728A (en) | First rain treatment system | |
| CN102182242B (en) | A rainwater treatment system and rainwater treatment method thereof | |
| CN106245734A (en) | The urban road rainwater-collecting improved, the system of regulating and storing conserving greenery patches | |
| CN104947781A (en) | Rainwater collection diversion and strata conservation regulation and storage system | |
| CN108867239B (en) | Urban road rainwater is collected and is utilized self-interacting system | |
| CN105013244B (en) | Multistage rainwater purification processing equipment | |
| CN103408156A (en) | Method and system for comprehensively purifying, collecting and utilizing overpass rainwater | |
| CN209585257U (en) | A kind of sponge urban rainwater recovery system | |
| WO2019061869A1 (en) | Integrated rainwater treatment device | |
| CN207429843U (en) | A kind of low water damage dmp filter pond | |
| CN203728644U (en) | Integrated artificial wetland system | |
| CN205839923U (en) | A kind of novel intelligent grid storm water man-agement system | |
| CN105201068A (en) | Rainwater resource treatment process | |
| CN109518793B (en) | Anti-blocking rainwater and sewage pipeline system and application method thereof | |
| CN105439306A (en) | Scattered rainwater front recovery purification system equipment | |
| CN204865241U (en) | Multistage rain purifying water process equipment | |
| CN208320136U (en) | A kind of dynamic filtration separation system for rainfall regulative pool | |
| CN207794261U (en) | A kind of Integral rain solid-liquid separation system | |
| CN207546007U (en) | A kind of rainfall runoff adjusts and contaminant removal system | |
| CN207331947U (en) | A kind of safety shunting sand-catching apparatus | |
| CN207959465U (en) | Anti-sedimentation and sedimentation cleaning pipes connected to abandoned rainwater wells | |
| CN104975644A (en) | Special pipe storage system for road initial rainwater | |
| CN105804201B (en) | A kind of novel intelligent grid storm water man- agement system | |
| CN113931273B (en) | A rainwater treatment system for diverting, purifying and recycling rainwater on the road surface of urban residential areas | |
| CN105536348B (en) | A kind of minute-pressure flushing type desilting filtration system facility and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1163586 Country of ref document: HK |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111123 |
|
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1163586 Country of ref document: HK |