CN214457368U

CN214457368U - Rainwater purification system

Info

Publication number: CN214457368U
Application number: CN202122154811.5U
Authority: CN
Inventors: 乔丽丽; 张依章; 迟冉; 范博渊; 吕翠翠; 香宝
Original assignee: Tianjin Binhai New Area Environmental Innovation Research Institute
Current assignee: Tianjin Binhai New Area Environmental Innovation Research Institute
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2021-10-22
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a rainwater purification system, a rainwater collection port on the road surface is communicated with a flow guiding device, the flow guiding device is deep into a water collecting well, the bottom of the water collecting well is provided with a micropore aeration device, the bottom of a precipitation well is V-shaped, the bottom of a strengthening purification well is provided with a stirring device, the height of the side wall between the precipitation well and the strengthening purification well is lower than that between the precipitation well and the water collecting well, the height of the side wall between the strengthening purification well and the filtering purification device is lower than that between the strengthening purification well and the precipitation well, the inner side of the filtering purification device is provided with an overflow wall structure, the bottom is provided with a water distribution device, the interior is filled with filtering filler, the water outlet overflow of the strengthening purification well enters the overflow wall structure and then is pumped into the water distribution device, and overflows to a deep purification area after being filtered by the filtering filler, the utility model has the advantages of simple structure, convenient operation, good rainwater purification effect and full purification of non-point source sewage, the non-point source sewage is prevented from directly discharging into the receiving water body, the water quality of the discharged water is further ensured, and technical support is provided for repairing the bank zones of rivers and lakes.

Description

Rainwater purification system

Technical Field

The utility model relates to a rainwater purifies technical field, especially relates to a rainwater clean system.

Background

Under rainfall conditions, pollutants are washed from unspecified places by rainwater and are collected into receiving water bodies (including rivers, lakes, reservoirs, gulfs and the like) through a runoff process, and water body pollution is caused. Compared with point source pollution, non-point source pollution is mainly caused by soil silt particles on the ground surface, nutrient substances such as nitrogen and phosphorus, harmful substances such as pesticides, solid wastes such as straw and agricultural films, livestock and poultry breeding fecal sewage, aquaculture bait drugs, rural domestic sewage garbage, various atmospheric particulate matters, and the like, entering a receiving water body along with rainwater, causing pollution in other forms such as organic pollution, water body eutrophication or toxicity and the like, and has the characteristics of dispersibility, randomness, diversity, latency, incapability of collecting and converging along with rainfall, and the like, so that the monitoring is not easy, the quantification is difficult, and the control difficulty of the receiving water body are high. Non-point source pollution caused by rainfall entrainment always troubles one of the main problems of continuous and stable water quality of rivers and lakes and reaches the standard, and is also the difficult point of secondary utilization of rainwater. Therefore, it is urgently required to develop a rainwater purification system to solve the above technical problems.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rainwater purification system, simple structure, the simple operation, rainwater purifying effect is good, can make non-point source sewage obtain fully purifying, avoids non-point source sewage to directly arrange and gets into the water of receiving, and then ensures the quality of water of going out, provides technical support for the restoration in river lake bank area.

In order to achieve the above object, the utility model provides a rainwater purification system, including the level set gradually in the sump pit of road surface below, precipitation well, intensive purification well, filtration purification device and deep purification region, communicate in proper order through the overflow between each adjacent structure, be equipped with rainwater collection mouth on the road surface, rainwater collection mouth and guiding device intercommunication, guiding device gos deep into the sump pit, the sump pit bottom is equipped with micropore aeration device, the precipitation well bottom is the V type, so that silt subsides and discharges, intensive purification well bottom is equipped with agitating unit, the lateral wall height between precipitation well and intensive purification well is less than the lateral wall height between precipitation well and sump pit, so that the supernatant overflow in the precipitation well gets into intensive purification well, the lateral wall height between intensive purification well and filtration purification device is less than the lateral wall height between intensive purification well and precipitation well, the water outlet of the reinforced purification well overflows into the overflow wall structure and then is pumped into the water distribution device through a pump, and the water is filtered by the filter filler and then overflows to a deep purification area, wherein the deep purification area is used for deep purification of the water outlet of the filtration purification device, the deep purification area is communicated with a river channel, and the purified water outlet is discharged into the river channel.

Preferably, a filtering grid is arranged between the rainwater collecting opening and the flow guide device and used for intercepting large-particle pollutants.

Preferably, the top of the water collecting well is provided with a mud scraping device for clamping the light pollutants floating to the surface by the bubbles to strip off the water collecting well.

Preferably, the bottom of the sedimentation well is connected with a pump conveying structure for conveying and outputting sludge, and the bottom of the enhanced purification well is communicated with the sedimentation well through valve control.

Preferably, the deep purification area is in the form of an ecological pond or wetland purification.

Preferably, the reinforced purification well is connected with a dosing device for adding a micro-flocculant into the reinforced purification well.

Preferably, the micro-flocculant is a chemical flocculant or a biological flocculant which does not cause secondary pollution to water quality.

Preferably, the chemical flocculant is PAC or PAM.

Preferably, the filter filler is one or more of ceramsite, immobilized bacteria particle, zeolite, limestone, activated carbon, volcanic rock, coke, quartz sand, expanded aluminosilicate, polystyrene, polyvinyl chloride, polypropylene, polyurethane, plastic or resin.

The utility model provides a pair of rainwater clean system has following beneficial effect.

1. The utility model discloses simple structure, the simple operation, rainwater purifying effect is good, can make non-point source sewage obtain fully purifying, avoids non-point source sewage to directly arrange and gets into the accepting water body, especially the relatively poor initial rainwater of storage sewage and the initial stage quality of water that rains in the rainwater pipeline, and then ensures water quality of water, provides technical support for the restoration in river lake bank area.

2. The utility model discloses a sump pit bottom is equipped with micropore aeration equipment, and the top is equipped with mud scraping device, can float to the surface through the bubble centre gripping to light pollutant, and the sump pit is peeled off to rethread mud scraping device.

3. The utility model discloses a strengthening the purifying well and realizing flocculation, gathering and further subsiding to aquatic pollutants through the micro-flocculant, further purifying quality of water, purifying effect is good.

Drawings

Fig. 1 is the utility model provides a pair of rainwater clean system's schematic structure diagram.

In the figure:

1. the system comprises a water collecting well 2, a settling well 3, a strengthening purification well 4, a filtering purification device 5, a deep purification area 6, a rainwater collecting port 7, a filtering grid 8, a mud scraping device 9, a flow guide device 10, a microporous aeration device 11, a pump conveying structure 12, a valve 13, a stirring device 14, an overflow wall structure 15, a water distribution device 16, a river channel 17, a filtering filler 18 and a road surface.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings to facilitate understanding of the present invention.

As shown in fig. 1, the utility model provides a rainwater purification system's schematic structural diagram. This rainwater purification system sets gradually including the level in the sump pit 1 of 18 below on road surface, deposits well 2, strengthens purifying well 3, and filtration purification device 4 and degree of depth purification are regional 5, communicate in proper order through the overflow between each adjacent structure, it collects mouth 6 to be equipped with the rainwater on road surface 18, mouth 6 and guiding device 9 intercommunication are collected to the rainwater, it filters grid 7 to be equipped with between mouth 6 and the guiding device 9 to collect the rainwater for hold back the large granule pollutant. The flow guide device 9 extends into the water collecting well 1, the bottom of the water collecting well 1 is provided with a micropore aeration device 10, and the top of the water collecting well 1 is provided with a mud scraping device 8 for stripping light pollutants floating to the surface from the water collecting well 1 by clamping bubbles. The 2 bottoms of sedimentation well are the V type to silt subsides and discharges, 3 bottoms of strengthening the purifying well are equipped with agitating unit 13, strengthen purifying well 3 and be connected with charge device (not shown in the figure) for add the micro-flocculant in to strengthening the purifying well 3. The micro-flocculant is a chemical flocculant or a biological flocculant which does not cause secondary pollution to water quality. Preferably, the chemical flocculant is PAC or PAM. The bottom of the settling well 2 is connected with a pump conveying structure 11 for conveying and outputting sludge. The bottom of the reinforced purification well 3 is communicated with the sedimentation well 2 through a valve 12 in a control mode, sludge at the bottom of the reinforced purification well 3 is pumped into the sedimentation well 2 by opening the valve 12 and is discharged out of the system through a V-shaped structure at the bottom of the sedimentation well 2. The height of the side wall between the precipitation well 2 and the reinforced purification well 3 is lower than that of the side wall between the precipitation well 2 and the water collecting well 1, so that supernatant in the precipitation well 2 overflows into the reinforced purification well 3, the height of the side wall between the reinforced purification well 3 and the filtering and purifying device 4 is lower than that of the side wall between the reinforced purification well 3 and the precipitation well 2, so that effluent of the reinforced purification well 3 overflows into the filtering and purifying device 4, an overflow wall structure 14 is arranged on the inner side of the filtering and purifying device 4, a water distribution device 15 is arranged at the bottom of the filtering and purifying device and used for uniformly distributing water, a filtering filler 17 is filled inside the filtering and purifying device, and the filtering filler 17 is one or more of ceramsite, immobilized bacteria particles, zeolite, limestone, activated carbon, volcanic rock, coke, quartz sand, expanded aluminosilicate, polystyrene, polyvinyl chloride, polypropylene, polyurethane, plastics or resin. The water outlet of the reinforced purification well 3 overflows into the overflow wall structure 14 and then is pumped into the water distribution device 15 through a pump (not shown in the figure), and the water is filtered by the filter filler 17 and overflows to the deep purification area 5, the deep purification area 5 is used for performing deep purification on the water outlet of the filter purification device 4, the deep purification area 5 is communicated with the river channel 16, and the purified water outlet is discharged into the river channel 16. The deep purification area 5 can be set according to specific conditions on site, can be in the form of an ecological pond or a wetland purification form, and has the main functions of strengthening the biochemical property and the ecological property of rainwater, taking the effluent as water for supplementing water to a river 16 or maintaining landscapes, and determining the application of the purified rainwater according to the surrounding environment of roads.

The utility model discloses a theory of operation does:

the utility model discloses locate one side or both sides of road, the both sides of road can be followed in the design drainage of 18 road surfaces usually are discharged, rainwater above the road passes through in rainwater collection mouth 6 gets into rainwater purification system, the rainwater of collection at first filters large granule material through filtering grid 7, then get into in sump pit 1 of below by the 9 water conservancy diversion of guiding device, sump pit 1 bottom is equipped with micropore aeration device 10, micropore aeration device 10 is to 1 inside release a large amount of micro bubbles of sump pit, tiny granule material in the rainwater gathers the come-up to sump pit 1's surface under the smugglomeration of bubble secretly, it is outer to peel off sump pit 1 with it through the mud scraping device 8 at top. The effluent after air floatation treatment overflows into the settling well 2, settling and purifying are carried out in the settling well 2, the settled sludge is discharged through a V-shaped structure at the bottom, and the height of the side wall between the settling well 2 and the reinforced purifying well 3 is lower than that between the settling well 2 and the water collecting well 1, so that the supernatant in the settling well 2 overflows into the reinforced purifying well 3. The rainwater after further precipitation treatment overflows into the reinforced purification well 3, and an automatic dosing device or a manual dosing device is adopted to add a micro-flocculant into the reinforced purification well 3. After the micro-flocculating agent is used for carrying out micro-flocculation precipitation treatment on rainwater in the strengthening and purifying well 3, sludge is pumped into a V-shaped structure at the bottom of the precipitation well 2 through a pump conveying structure 11 through a valve 12, so that the sludge is conveniently settled and discharged. In order to ensure that the rainwater does not overflow, the height of the side wall between the reinforced purification well 3 and the filtration and purification device 4 is lower than that of the side wall between the reinforced purification well 3 and the precipitation well 2, so that the effluent of the reinforced purification well 3 overflows into the filtration and purification device 4. The outlet water of the reinforced purification well 3 overflows into an overflow wall structure 14 on the inner side of the filtration and purification device 4, the rainwater entering the overflow wall structure 14 is pumped into a water distribution device 15 at the bottom of the filtration and purification device 4 through a pump and then enters a filler filtration zone for filtration and purification treatment, the outlet water purified by the water distribution device 15 from the overflow wall structure 14 enters a deep purification zone 5 for reinforcement treatment, and the treated outlet water reaches the III-IV class water standard of surface water and enters surface water receiving zones such as a river 16 and a lake. Sludge stripped to the outside of the water collecting well 1 through the mud scraping device 8 and sludge discharged from the bottom of the settling well 2 are collected and treated uniformly, and local treatment or ex-situ transportation centralized treatment is selected according to the treatment capacity and the treatment environment. The rainwater purification structure can be designed into specific size specifications according to local rainwater quantity, and can also be arranged at intervals of a plurality of kilometers according to local rainfall conditions.

The utility model discloses simple structure, the simple operation, rainwater purifying effect is good, can make non-point source sewage obtain fully purifying, avoids non-point source sewage to directly arrange and gets into the accepting water body, especially the relatively poor initial rainwater of storage sewage and the initial stage quality of water that rains in the rainwater pipeline, and then ensures water quality of water, provides technical support for the restoration in river lake bank area.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A rainwater purification system is characterized by comprising a water collecting well, a settling well, an enhanced purification well, a filtering purification device and a deep purification area which are horizontally and sequentially arranged below a road surface, wherein adjacent structures are sequentially communicated through overflow, a rainwater collecting port is arranged on the road surface and is communicated with a flow guide device, the flow guide device is deeply inserted into the water collecting well, a micropore aeration device is arranged at the bottom of the water collecting well, the bottom of the settling well is V-shaped so that silt is settled and discharged, a stirring device is arranged at the bottom of the enhanced purification well, the height of the side wall between the settling well and the enhanced purification well is lower than that of the side wall between the settling well and the water collecting well so that supernatant in the settling well overflows into the enhanced purification well, the height of the side wall between the enhanced purification well and the filtering purification device is lower than that the side wall between the enhanced purification well and the settling well so that the effluent of the enhanced purification well overflows into the filtering purification device, the inner side of the filtering and purifying device is provided with an overflow wall structure, the bottom of the filtering and purifying device is provided with a water distribution device for uniformly distributing water, the filtering and purifying device is filled with filtering filler, the water outlet overflow of the reinforced purifying well enters the overflow wall structure and then is pumped into the water distribution device through a pump, and the water is filtered by the filtering filler and then overflows to a deep purification area, the deep purification area is used for deeply purifying the water outlet of the filtering and purifying device, the deep purification area is communicated with a river channel, and the purified water outlet is discharged into the river channel.

2. The rainwater purification system according to claim 1, wherein a filtering grid is disposed between the rainwater collection port and the diversion device for intercepting large-particle pollutants.

3. A rainwater purification system according to claim 2, wherein a mud scraper is provided at the top of the water collection well for scraping light pollutants floating on the surface by holding the bubbles off the water collection well.

4. A rainwater purification system according to claim 3, wherein said bottom of said precipitation well is connected to a pump transfer structure for transferring and delivering sludge, and said enhanced purification well bottom is in valve-controlled communication with said precipitation well.

5. A stormwater purification system as claimed in claim 4, wherein the deep purification zone is in the form of an ecological pond or wetland purification.

6. The rainwater purification system according to claim 5, wherein said enhanced purification well is connected with a dosing device for adding a micro-flocculant into the enhanced purification well.

7. The rainwater purification system according to claim 6, wherein said micro-flocculant is a chemical flocculant or a biological flocculant which does not cause secondary pollution to water quality.

8. The stormwater purification system according to claim 7, wherein the chemical flocculating agent is PAC or PAM.

9. The rainwater purification system according to claim 8, wherein said filter filler is one or more of ceramsite, immobilized bacteria particle, zeolite, limestone, activated carbon, volcanic rock, coke, quartz sand, expanded aluminosilicate, polystyrene, polyvinyl chloride, polypropylene, polyurethane, plastic or resin.