CN218374256U - Treatment system for diversion, purification and reuse of rainwater on pavement of residential area - Google Patents
Treatment system for diversion, purification and reuse of rainwater on pavement of residential area Download PDFInfo
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- CN218374256U CN218374256U CN202122923063.2U CN202122923063U CN218374256U CN 218374256 U CN218374256 U CN 218374256U CN 202122923063 U CN202122923063 U CN 202122923063U CN 218374256 U CN218374256 U CN 218374256U
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Abstract
The utility model belongs to the technical field of the sponge city is used, concretely relates to a processing system that is used for district road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization. The system includes the inlet for stom water, the cistern, multistage purification view pond and water equipment, the inlet for stom water respectively with the cistern with multistage purification view pond intercommunication, the cistern with multistage purification view pond intercommunication. This application is through setting up environment-friendly inlet for stom water, cistern and recessed formula sponge facility, accomplishes the retrieval and utilization of rainwater, and the triplex is parallelly connected to combine through setting up continuous first downspout and second downspout in the environment-friendly inlet for stom water, and third downspout, the department of going of reasonable distribution rainfall, thereby realize the reposition of redundant personnel of rainwater.
Description
Technical Field
The utility model belongs to the technical field of the sponge city is used, concretely relates to a processing system that is used for district road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization.
Background
The rainwater is the most fundamental, the most direct and the most economic water resource, and is an important technical measure for improving urban water environment and maintaining green ecology. However, in the rainwater, especially in the initial stage, pollutant gases such as acid gases and automobile exhaust in the air are dissolved in the rainwater, and after the rainwater falls, due to scouring of roofs, pavements and the like, the rainwater contains a large amount of pollutants such as organic matters, suspended solids, heavy metals, grease, pathogens and the like, the pollution degree is high and usually exceeds the pollution degree of municipal sewage, most pollutant indexes exceed the V-type standard limit value of surface water environment quality, and if the pollutants are directly discharged into a receiving water body without treatment, serious pollution is caused to the receiving water body.
At present, the sponge district is to the utilization mode of rainwater: after primary rain is abandoned by the traditional rain inlet, middle and later stage rain enters the purification facility together, however, when much rainfall exists, the purification facility cannot bear all the rainfall at all and cannot purify the rain in time, and serious water accumulation on the road surface is caused; or, a complex rainwater recycling system is connected behind the traditional rainwater port, but the method is time-consuming, labor-consuming and capital-consuming.
CN201510424334.6 discloses a rainwater garden system for community rainwater diversion, peak clipping and ecological purification, wherein the rainwater garden is connected with a roof rain fall facility to treat the roof rainwater, the technical scheme is only for the roof rainwater, the function is limited, and no related suggestion for rainwater recycling is provided. CN 202110451834.4's utility model patent provides a building district rainwater recycling system, can accomplish the separation of rainwater, purify and retrieve, but including a plurality of constitutional units such as cistern, preliminary sedimentation pond, water storage box in this system, area is big, and investment cost is higher. The prior art does not relate to the specific method and the structural parameters of the rainwater treatment system for distributing, purifying and recycling the rainwater on the road surface of the urban residential district.
The key technical problems in the prior art are as follows: the rainwater diversion, purification and reuse function requirements of the road surface rainfall drainage system of the urban residential district. To the technical problem who provides above, this application provides a rainwater processing system for reposition of redundant personnel, purification and retrieval and utilization of urban residential district road surface rainwater, and it can not only separate silt and the large granule pollutant in the initial stage rainwater, can also come rational distribution rainwater according to what of rainfall, plays the effect of discharging and collecting the rainwater, can also purify the rainwater simultaneously, reaches the standard of view water, easy operation, maneuverability is strong.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a processing system that is used for district road surface rainwater reposition of redundant personnel, purification, retrieval and utilization.
The treatment system for diversion, purification and reuse of rainwater on the pavement of the residential area comprises a rainwater port, a water storage tank, a multi-stage landscape purification tank and water utilization equipment, wherein the rainwater port is respectively communicated with the water storage tank and the multi-stage landscape purification tank, the water storage tank is communicated with the multi-stage landscape purification tank, wherein,
the gutter inlet comprises a filtering mechanism and a drainage mechanism, wherein,
the filtering mechanism sequentially comprises a rainwater grate, a sewage intercepting net and a grit chamber from top to bottom;
the drainage mechanism comprises a first rain pipe, a second rain pipe and a third rain pipe, wherein,
the upper end of the first rain pipe is a water inlet end, a sewage interception cover is arranged, the bottom end is closed,
the first rain water pipe is vertically arranged and passes through the round hole in the middle of the sewage interception net,
the two thirds part of the side wall of the first rain pipe is connected with the second rain pipe, the second rain pipe is lower than the bottom surface of the sewage interception net, the second rain pipe is a water outlet pipe,
the third rain pipe is arranged at a position 5-10cm away from the bottom surface,
when the rainfall is less, the rainwater entering the first rainwater pipe is not as good as that of the second rainwater pipe, the rainwater passes through the first rainwater pipe and the grit chamber and is discharged through the third rainwater pipe, and when the rainfall is more, the rainwater passes through the first rainwater pipe and enters the first rainwater pipe and is discharged through the second rainwater pipe.
According to the utility model provides a processing system that is used for district road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization, wherein, the cistern is equipped with water inlet, first delivery port and second delivery port, the water inlet with the inlet for stom water links to each other, first delivery port links to each other with municipal pipe network, the second delivery port with multistage view purification tank links to each other, second delivery port department is equipped with rainwater elevator pump and stand-by pump.
According to the treatment system for diversion, purification and reuse of rainwater on the pavement of the residential area, the reservoir is provided with an overflow weir, and overflowing rainwater is discharged through a first water outlet.
According to the utility model provides a processing system that is used for district's road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization, wherein, multistage view purification tank is equipped with first water inlet, second water inlet and delivery port, first water inlet with the inlet for stom water links to each other, the second water inlet with the cistern links to each other, the delivery port links to each other with the water facility.
According to the utility model provides a processing system that is used for district road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization, wherein, multistage view purification tank includes grit chamber, one-level view purification tank, second grade view pond and drainage pond, grit chamber, one-level view purification tank, second grade view pond and drainage pond are linked together in proper order.
According to the treatment system for diversion, purification and reuse of rainwater on the road surface of the residential area, an overflow weir is arranged in the primary landscape purification tank.
According to the utility model provides a processing system that is used for district's road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization, wherein, from the top down is benthophyte, soil horizon and packing layer in proper order in the second grade view pond.
According to the treatment system for diversion, purification and reuse of rainwater on the pavement of the residential area, the submerged plants comprise tape grass, goldfish algae, watermifoil, hydrilla verticillata and the like, and the particle sizes of the packing layers are reduced from top to bottom in sequence.
According to the treatment system for diversion, purification and reuse of rainwater on the pavement of the residential area, the secondary landscape pool is provided with an overflow weir.
A processing system for district road surface rainwater reposition of redundant personnel, purification, retrieval and utilization according to this application, wherein, cut dirty net and be the rectangle cut the horizontal third department of dirty net and open the hole of leaking, open at the bottom middle part has the round hole, and the diameter of round hole matches the external diameter of first downspout, all other parts are sealed.
Compared with the prior art, the method has the following advantages and beneficial effects:
this application is through setting up environment-friendly inlet for stom water, cistern and recessed formula sponge facility, accomplishes the retrieval and utilization of rainwater, and the triplex is parallelly connected to combine through setting up continuous first downspout and second downspout in the environment-friendly inlet for stom water, and third downspout, the department of going of reasonable distribution rainfall, thereby realize the reposition of redundant personnel of rainwater.
Drawings
FIG. 1 is a schematic structural diagram of a treatment system for diversion, purification and reuse of rainwater on a community road surface according to the present application;
FIG. 2-1 is a schematic illustration of a gully configuration of the system of the present application;
2-2 are schematic structural views of a dirt intercepting net of a gully of the system of the present application;
FIGS. 2-3 are top views of a grit chamber of a gully of the system of the present application;
FIGS. 2-4 are side views of a permeable screen of filter material in a grit chamber of a gully of the system of the present application;
FIGS. 2-5 are schematic illustrations of the installation of a first storm drain and a second storm drain of a flow storm drain of the system of the present application;
fig. 3 is a schematic view of a multi-stage landscape purification tank of the system of the present application.
Reference numerals: 1-a gutter inlet; 11-a first storm drain; 12-a second storm drain; 13-a third storm drain; 14-rain water grate; 15-sewage intercepting net; 16-a grit chamber; no. 161-1 separator; no. 162-2 separator; 163-water outlet; 164-a primary filtration column; 165-secondary filter column; 166-first order permeable net; 167-a secondary water permeable net; 17-a sewage blocking cover;
2: a reservoir; 21: a water inlet; 22: a first water outlet; 23: a second water outlet;
3: a multi-stage landscape purification tank; 31: a first water inlet; 32: a second water inlet; 33: a third water outlet; 34: a grit chamber; 341-cobblestone filling; 342-a sieve plate; 35-first level landscape purification pool; 351-plant; 352-water-retaining baffles; 353-soil; 36-secondary landscape purification pool; 361-submerged plants; 362-soil layer; 363-filter material matrix; 37-a drainage pool; 4-water using facilities.
Detailed Description
The technical solutions of the present application are described in detail below with reference to embodiments and drawings.
According to the utility model discloses a processing system that is used for district road surface rainwater reposition of redundant personnel, purifies, retrieval and utilization includes: a rain inlet, a water storage tank, a multi-stage landscape purification tank and water utilization equipment, wherein the rain inlet is respectively communicated with the water storage tank and the multi-stage landscape purification tank, the water storage tank is communicated with the multi-stage landscape purification tank, wherein,
the gully comprises a filtering mechanism and a draining mechanism, wherein,
the filtering mechanism sequentially comprises a rainwater grate, a sewage intercepting net and a grit chamber from top to bottom;
the drainage mechanism comprises a first rain pipe, a second rain pipe and a third rain pipe, wherein,
the upper end of the first rain pipe is a water inlet end, a sewage interception cover is arranged, the bottom end is closed,
the first rain water pipe is vertically arranged and passes through the round hole in the middle of the sewage interception net,
the two thirds part of the side wall of the first rain pipe is connected with the second rain pipe, the second rain pipe is lower than the bottom surface of the sewage interception net, the second rain pipe is a water outlet pipe,
the third rain pipe is arranged at a position 5-10cm away from the bottom surface,
when the rainfall is less, the rainwater entering the first rainwater pipe is not as good as that of the second rainwater pipe, the rainwater passes through the first rainwater pipe and the grit chamber and is discharged through the third rainwater pipe, and when the rainfall is more, the rainwater passes through the first rainwater pipe and enters the first rainwater pipe and is discharged through the second rainwater pipe.
1. Water reservoir
According to the utility model discloses a concrete implementation mode, the cistern is equipped with a water inlet and first delivery port and second delivery port, the water inlet with the inlet for stom water links to each other, first delivery port links to each other with municipal pipe network, the second delivery port with multistage view purification tank links to each other, second delivery port department is equipped with rainwater elevator pump and reserve pump, the cistern is equipped with the overflow weir, and the rainwater of overflow stream is discharged through first delivery port.
2. Multistage view purifying pond
The multi-stage landscape purification tank comprises a grit chamber, a landscape purification tank and a deep purification tank.
The multi-level landscape purification tank is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet is connected with a rainwater inlet, the second water inlet is connected with the reservoir, and the water outlet is connected with a water facility.
Furthermore, the multistage landscape purification tank comprises a grit chamber, a first-stage landscape purification tank, a second-stage landscape tank and a drainage tank, wherein the grit chamber, the first-stage landscape purification tank, the second-stage landscape tank and the drainage tank are sequentially communicated, a first water inlet in the grit chamber is connected with a rainwater inlet, rainwater enters the region, seeps down through a cobble bed and enters the first-stage landscape purification tank through a sieve plate, landscape plants are planted in the landscape purification tank, the plants are composed of emergent aquatic plants and floating plants, and the emergent aquatic plants comprise calamus flavus, thalictrum, saxifrage, allium japonicum thunb, iris flower and the like; the water plants include water lily, water hyacinth, duckweed, etc., and the plants are selected according to local conditions.
Wherein, an overflow weir is arranged in the first-level landscape purification tank, when the rainwater is excessive, the rainwater overflows into the second-level landscape tank, submerged plants, a soil layer and three layers of filler layers are sequentially arranged in the second-level landscape tank from top to bottom, and the submerged plants comprise eel grass, goldfish algae, watermifoil algae, hydrilla verticillata and the like; the packing layer is sequentially reduced in particle size from top to bottom, the packing can be made of zeolite, ceramsite, quartz sand and the like, the secondary landscape pool is still provided with an overflow weir so as to flow into the drainage layer, and finally rainwater is discharged into a water facility through the third water outlet. In addition, a second water inlet is also arranged in the grit chamber and is connected with the water storage tank, and the water can be pumped into the landscape purification tank to irrigate plants in sunny days.
3. Gutter inlet
The filtering mechanism in the rainwater port comprises a rainwater grate, a sewage blocking net, a sand settling tank and a sewage blocking cover, and the rainwater grate is installed on a rainwater grate base. The sewage interception net is arranged on the sewage interception net base and can be taken out at any time to dump pollutants. The sewage interception net is rectangular, a water drainage hole is formed in one third of the whole sewage interception net in the transverse direction, a round hole is formed in the middle of the bottom of the sewage interception net, the size of the round hole is matched with that of the first rainwater pipe, and the rest parts of the sewage interception net are sealed. The drain hole at the bottom of the sewage interception net is square, and the side length is 2-2.5 cm.
The sand setting tank in the environment-friendly gutter inlet is provided with two partition plates in the middle, a primary filter column and a secondary filter column, the partition plates guide the entering rainwater, and the filter columns filter the rainwater. Each filter column is covered by a water permeable net, the pore diameters of the water permeable nets of the first-stage filter column and the second-stage filter column are gradually reduced, and the particle diameters of filter materials in the first-stage filter column and the second-stage filter column are also gradually reduced. Finally, the rainwater can be discharged through a water drainage hole at the bottom of the sand settling tank.
The sand settling tank is made of resin, and is 70-75cm long, 40-45cm wide, 40cm high and 5mm thick. The porous water permeable net is 20cm in height, 15cm in length, 2mm in thickness and 10cm in width, the primary water permeable holes are 2.5cm, and the secondary water permeable holes are 1.5cm.
The two-stage filter materials of the grit chamber are cobblestones, porcelain granules or other types meeting the conditions, and the aperture of each stage of filter material is larger than that of the permeable hole, and the filter materials are contained in a mesh bag. The filter material is cleaned regularly, and taken out and stored separately in dry season.
The sand basin baffle is last to be fluted to the net that permeates water can be from last down pushing, fixes the filter material.
The partition plates are respectively provided with a hole, so that the sand setting groove can be conveniently hooked out for cleaning and replacing the filter material.
The rainwater grate is a cuboid and is made of resin, stainless steel or cast iron.
The sewage interception net and the circular sewage interception cover are made of resin, stainless steel or cast iron.
Furthermore, the upper end of a first rainwater pipe of the environment-friendly rainwater port is a water inlet end and is provided with a circular sewage intercepting cover, the first rainwater pipe is connected with a second rainwater pipe, and the second rainwater pipe is lower than the bottom surface of the sewage intercepting net.
The sewage blocking cover on the first rainwater pipe is buckled above the first rainwater pipe and can be detached, and the radius of the sewage blocking cover is 0.1-0.2cm larger than that of the first rainwater pipe.
The connecting position of the second rainwater pipe and the first rainwater pipe is arranged at a high position. When the high level of hookup location of second downspout set up, the rainwater enters into first downspout after, heavier impurity can be at the partial deposit of first downspout, and the high rainwater of liquid level is pure relatively, consequently can guarantee that exhaust rainwater is through abundant subsiding with hookup location high level setting.
When the rainfall is little, the rainwater enters along the edge of the rainwater grate, and passes through the sewage interception net, pollutants such as branches and leaves are intercepted on the sewage interception net, most silt particles are intercepted through the diversion of the sand settling tank and the filtration of the filter columns due to the fact that the initial rainwater concentration is high and contains a lot of particle pollutants, and the rainwater pollutant concentration for removing the silt is greatly reduced and enters the landscape purification tank through the third rainwater pipe. Then, with the increase of rainfall, rainfall submerges the rainwater grate, rainwater submerges the first rainwater pipe, partial particulate matters are removed again through the circular sewage interception net on the upper portion of the first rainwater pipe, rainwater enters the first rainwater pipe, and enters a nearby reservoir or a landscape purification pond through the second rainwater pipe. Set up the overflow weir in the cistern, when the rainfall is more, let the rainwater discharge through municipal pipe network.
The technical scheme of the application is described in detail in the following with the accompanying drawings.
As shown in figure 1, the rainwater treatment system for distributing, purifying and recycling rainwater on the road surface of the urban residential district according to the application comprises a rainwater port 1, a water storage tank 2, a multi-stage landscape purification tank and a water utilization device 4.
As shown in fig. 2-1 to 2-5, a filtering mechanism is arranged inside the gutter inlet, and the filtering mechanism comprises a rainwater grate 14, a sewage intercepting net 15, a grit chamber 16 and a sewage intercepting cover 17, and is subjected to interception by the rainwater grate 14 and the sewage intercepting net 15 and diversion filtering by the grit chamber.
A No. 1 partition plate 161 and a No. 2 partition plate 162, a primary filter column 164 and a secondary filter column 165 are arranged in the grit chamber, and water is discharged from a water outlet 163. The grit chamber consists of two partition plates 161 and 162, two filter columns 164 and 165 and two water permeable nets 166 and 167, the structure is simple, and the pore diameters of the two porous water permeable nets 166 and 167 are gradually reduced. Because the initial rainwater concentration is higher, contains many granule pollutants, so through the water conservancy diversion of two baffles 161 and 162 of grit chamber to and the filtration of two filter columns 164 and 165, held back most silt particle, the rainwater pollutant concentration of getting rid of silt reduces by a wide margin.
The inside drainage mechanism that sets up of inlet for stom water, drainage mechanism includes first downspout 11, second downspout 12 and third downspout 13, first downspout 11 links to each other with second downspout 12, and first downspout 11 is the inlet tube, and the bottom seals, and second downspout 12 is the outlet pipe, can link to each other with the cistern, and third downspout 13 can link to each other with recessed formula sponge facility.
The water storage tank 2 is provided with a water inlet 21 connected with the rainwater port 1, the first water outlet 22 is connected with a municipal pipe network, the second water outlet 23 is connected with the multi-stage purification tank 3, a rainwater lifting pump and a standby pump are arranged at the second water outlet 23, the water storage tank 2 is provided with an overflow weir, and rainwater overflowing and flowing out is discharged through the first water outlet 22; the first water inlet 31 of the multi-stage purification tank 3 is connected with the rainwater inlet 1, the second water inlet 32 is connected with the water storage tank 2, and the water outlet 33 is connected with the water using facility 4.
When the rainfall is little, the rainwater gets into along rainwater grate 14 edges, through cut dirty net 15, pollutant such as intercepting branch, leaf in cut dirty net 15 on, because initial rainwater concentration is higher, contain many granule pollutants, so through the water conservancy diversion of grit chamber 16 to and the filtration of one-level filter column 164 and second grade filter column 165, held back most silt particle, the rainwater pollutant concentration who gets rid of silt reduces by a wide margin, through third rainwater pipe 13 enters into near concave formula sponge facility 3. Then, as the rainfall amount is increased, the rainwater submerges the rainwater grate 14, the rainwater submerges the first rainwater pipe 11, partial particulate matters are removed again through the circular sewage interception cover 17 at the upper part of the first rainwater pipe 11, and the rainwater enters the first rainwater pipe 11 and enters the nearby reservoir 2 through the second rainwater pipe 12. After reservoir 2 is full of water, overflow occurs through the overflow weir, abandons the class with water realization through municipal pipe network. When the weather is fine, the water is lifted into the landscape purification tank 3 by the lifting pump for further purification and then is recycled.
The multi-stage landscape purification tank comprises a grit chamber, a first-stage landscape purification tank, a second-stage landscape tank and a drainage tank, wherein the grit chamber, the first-stage landscape purification tank, the second-stage landscape tank and the drainage tank are sequentially communicated, and landscape plants are planted in the landscape purification tank.
An overflow weir is arranged in the primary landscape purification tank, when the rainwater is excessive, the rainwater overflows into the secondary landscape tank, submerged plants, a soil layer and three layers of filler layers are sequentially arranged in the secondary landscape tank from top to bottom, and the submerged plants comprise tape grass, goldfish algae, watermifoil, hydrilla verticillata and the like; the packing layer is sequentially reduced in particle size from top to bottom, the packing can be made of zeolite, ceramsite, quartz sand and the like, the secondary landscape pool is still provided with an overflow weir so as to flow into the drainage layer, and finally rainwater is discharged into a water facility through the third water outlet. In addition, a second water inlet is also arranged in the grit chamber and is connected with the water storage tank, and the water can be pumped into the landscape purification tank to irrigate plants in sunny days.
As shown in figure 3, a cobble filler 341 is filled in the grit chamber 34, a first water inlet in the grit chamber 34 is connected with a rainwater inlet, rainwater enters the area, seeps down through a cobble bed, enters landscape purification through a sieve plate 342, the cobble bed of 35cm is added into the grit chamber 34, canna is planted in the primary landscape purification chamber 35, watermifoil is planted in the secondary landscape purification chamber, and a quartz sand layer of 10cm, a zeolite layer of 10cm and a ceramic particle layer of 10cm are filled at the bottom of the secondary landscape purification chamber.
Monitoring the rain in one place of Beijing, and measuring that the rainfall is 23.54mm and the area of the rainfall collecting area is about 400m 2 And measuring indexes such as COD, TN, TP, SS, turbidity and the like, respectively configuring simulated rainwater by using glucose, potassium nitrate, monopotassium phosphate and soil passing through a standard sieve, pumping the simulated rainwater into a simulation device, and measuring the water quality after treatment after 3 hours of hydraulic retention time, wherein the COD reduction rate reaches 67%, the SS reduction rate reaches 73%, the TN and TP reduction rates can reach 69% and 80%, and the total reduction rate is good. The treated water sample can reach the standard of landscape reuse water.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the protection scope of the present invention.
Claims (10)
1. A treatment system for diversion, purification and reuse of rainwater on the road surface of a residential area is characterized by comprising a rainwater port, a water storage tank, a multi-stage landscape purification tank and a water utilization device, wherein the rainwater port is respectively communicated with the water storage tank and the multi-stage landscape purification tank, the water storage tank is communicated with the multi-stage landscape purification tank,
the gutter inlet comprises a filtering mechanism and a drainage mechanism, wherein,
the filtering mechanism sequentially comprises a rainwater grate, a sewage intercepting net and a grit chamber from top to bottom;
the drainage mechanism comprises a first rain pipe, a second rain pipe and a third rain pipe, wherein,
the upper end of the first rain pipe is a water inlet end, a sewage interception cover is arranged, the bottom end is closed,
the first rain water pipe is vertically arranged and passes through the round hole in the middle of the sewage interception net,
the two thirds part of the side wall of the first rain pipe is connected with the second rain pipe, the second rain pipe is lower than the bottom surface of the sewage interception net, the second rain pipe is a water outlet pipe,
the third rain pipe is arranged at a position 5-10cm away from the bottom surface,
when the rainfall is less, the rainwater entering the first rainwater pipe is not as good as that of the second rainwater pipe, the rainwater passes through the first rainwater pipe and the grit chamber and is discharged through the third rainwater pipe, and when the rainfall is more, the rainwater passes through the first rainwater pipe and enters the first rainwater pipe and is discharged through the second rainwater pipe.
2. The system of claim 1, wherein the reservoir is provided with a water inlet, a first water outlet and a second water outlet, the water inlet is connected with the rainwater inlet, the first water outlet is connected with a municipal pipe network, the second water outlet is connected with the multi-stage landscape purification pond, and the second water outlet is provided with a rainwater lift pump and a standby pump.
3. The system for diversion, purification and reuse of rainwater on road surfaces of residential areas according to claim 2, wherein said reservoir is provided with an overflow weir, and the overflowed rainwater is discharged through the first water outlet.
4. The system of claim 1, wherein the multi-stage landscape purification pond is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet is connected with the rainwater inlet, the second water inlet is connected with the water storage tank, and the water outlet is connected with a water utilization facility.
5. The system for diversion, purification and reuse of rainwater on the road surface of the residential area according to claim 1, wherein said multi-stage landscape purification tank comprises a grit chamber, a first stage landscape purification tank, a second stage landscape tank and a drainage tank, and said grit chamber, said first stage landscape purification tank, said second stage landscape tank and said drainage tank are sequentially communicated.
6. The system for diversion, purification and reuse of rainwater on community roads according to claim 5, wherein an overflow weir is provided in the primary landscape purification tank.
7. The system for diversion, purification and reuse of rainwater on the road surface of a community according to claim 5, wherein the secondary landscape pool comprises submerged plants, a soil layer and a filler layer from top to bottom.
8. The system for diversion, purification and reuse of rainwater on road surfaces of residential areas according to claim 7, wherein said submerged plants comprise eel grass, goldfish algae, watermifoil and hydrilla verticillata, and said packing layer is sequentially reduced in particle size from top to bottom.
9. The system for diversion, purification and reuse of rainwater on road surfaces of residential areas according to claim 5, wherein said secondary landscape pool is provided with an overflow weir.
10. The system of claim 1, wherein the dirt blocking net is rectangular, water drainage holes are formed in one third of the dirt blocking net in the transverse direction, a round hole is formed in the middle of the bottom of the dirt blocking net, the diameter of the round hole is matched with the outer diameter of the first rainwater pipe, and the rest of the dirt blocking net is closed.
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| CN113931273A (en) * | 2021-11-26 | 2022-01-14 | 北京中铁生态环境设计院有限公司 | Rainwater treatment system for distributing, purifying and recycling rainwater on road surface of urban residential district |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113931273A (en) * | 2021-11-26 | 2022-01-14 | 北京中铁生态环境设计院有限公司 | Rainwater treatment system for distributing, purifying and recycling rainwater on road surface of urban residential district |
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