CN111592191A - Low rainwater branch matter is handled and recycling system under development of influence - Google Patents
Low rainwater branch matter is handled and recycling system under development of influence Download PDFInfo
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- CN111592191A CN111592191A CN202010492173.5A CN202010492173A CN111592191A CN 111592191 A CN111592191 A CN 111592191A CN 202010492173 A CN202010492173 A CN 202010492173A CN 111592191 A CN111592191 A CN 111592191A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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Abstract
The invention discloses a low-influence development rainwater quality-divided treatment and recycling system, which comprises: the system comprises a low-influence development system, a rainwater quality-grading collection and treatment system, a rainwater reuse system and a central control system; the central control system is respectively connected with the low-impact development system, the rainwater quality-based collection and treatment system and the rainwater recycling system; the rainwater quality-grading collection and treatment system is connected with the low-influence development system, and the low-influence development system and the rainwater quality-grading collection and treatment system are connected with the rainwater recycling system. The invention can effectively control the storm runoff on the premise of approaching the natural hydrologic cycle, reduce the non-point source pollution of cities and towns, and can fully collect and recycle the rainwater.
Description
Technical Field
The invention relates to the technical field of rainwater collection and utilization, in particular to a low-influence development rainwater quality-based treatment and recycling system.
Background
With the gradual increase of population in China, the problem of shortage of energy also appears, and especially the shortage of water resources is more serious. Meanwhile, due to rapid development of urbanization and enlargement of impervious areas of roads, building groups and the like, on one hand, rainwater cannot infiltrate into the ground to supplement underground water, and the environment of water and the ecological environment around the city are deteriorated due to severe super mining of the underground water; on the other hand, in heavy rain, runoff is rapidly collected to cause area water and urban local flood; the problems of urban water shortage, water environment deterioration, ecological environment destruction, urban rainstorm flood and the like are increasingly prominent.
The low impact development is a rainstorm management and non-point source pollution treatment technology developed in the end of the 90 s of the 20 th century, and aims to achieve control over runoff and pollution generated by rainstorms through scattered and small-scale source control so that a development area is close to natural hydrologic cycle as much as possible. The technology of low-influence development is utilized to treat rainwater, which is an important concept for sponge city construction. The sponge city is a new generation of city rainfall flood management concept, which means that the city can have good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like a sponge, and is also called as a water elasticity city. The sponge city is an innovative expression for promoting green building construction, low-carbon city development and smart city formation, and is an organic combination of modern green new technology and multiple factors such as society, environment, humanity and the like under the characteristic background of a new era.
However, the rainwater quality-divided treatment and recycling system based on the low-influence development technology is less in domestic application, and a system capable of effectively treating and recycling rainwater under low-influence development is urgently needed at present, so that the storm runoff can be effectively controlled on the premise of approaching natural hydrologic cycle, urban non-point source pollution is reduced, and meanwhile, rainwater can be sufficiently collected and utilized to achieve the purpose of saving water.
Disclosure of Invention
The invention aims to provide a rainwater quality-divided treatment and recycling system under low influence development, which aims to solve the problems in the prior art, can effectively control storm runoff on the premise of approaching natural hydrologic cycle, reduces urban non-point source pollution, and can fully collect and recycle rainwater.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a rainwater quality-divided treatment and recycling system under low-influence development, which comprises a low-influence development system, a rainwater quality-divided collection and treatment system, a rainwater recycling system and a central control system, wherein the rainwater quality-divided collection and treatment system is connected with the central control system; the central control system is respectively connected with the low-impact development system, the rainwater quality-based collection and treatment system and the rainwater recycling system; the rainwater quality-grading collection and treatment system is connected with the low-influence development system, and the low-influence development system and the rainwater quality-grading collection and treatment system are both connected with the rainwater recycling system;
the low-impact development system is used for purifying initial rainwater and rainwater which directly flows into the low-impact development system in the rain process;
the rainwater quality-grading collection and treatment system is used for collecting and treating overflow water, roof water and ground water of the low-impact development system, preliminarily filtering the collected rainwater and grading the rainwater at the source; the rainwater quality-grading collection and treatment system is also used for purifying the rainwater in the middle and later periods;
the rainwater recycling system is used for storing and recycling the recycled water according to the quality and refluxing the recycled water unqualified in purification treatment for retreatment;
and the central control system is used for controlling the water flow of the low-influence development system, the rainwater quality-based collection and treatment system and the rainwater recycling system.
Preferably, the low impact development system comprises: one or more of ecological grass planting ditches, sunken greenbelts, rainwater gardens.
Preferably, the low-impact development system comprises a water storage layer, a soil layer, a filler layer and a gravel layer which are arranged from top to bottom in sequence; the water storage layer is provided with a liquid level meter, and the liquid level meter is connected with the central control system and used for monitoring the liquid level height of the water storage layer in real time; the gravel layer is provided with a first water collecting pipe, and the first water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
Preferably, a bark covering layer is further arranged above the soil layer.
Preferably, the rainwater quality-based collecting and processing system comprises a first water inlet, a waste flow pipe, an initial rainwater purification processing device and a middle and later rainwater purification processing device; the first water inlet is respectively connected with the flow abandoning pipe, the initial rainwater purification treatment device and the middle and later stage rainwater purification treatment device.
Preferably, a filtering device and a detection system are arranged at the first water inlet, and the filtering device is used for reducing the flow rate of rainwater entering the rainwater quality-based collecting and processing system and primarily filtering ultra-large particle pollutants and silt; the detection system comprises a PH sensor and a flow sensor, wherein the PH sensor and the flow sensor are both connected with the central control system and used for controlling rainwater to flow into the flow abandoning pipe, the initial rainwater purification treatment device and the middle and later stage rainwater purification treatment device according to data collected by the PH sensor and the flow sensor.
Preferably, the filtering device comprises a pebble layer, a grate and a filter screen which are arranged from top to bottom in sequence.
Preferably, the initial rainwater purification treatment device comprises a reservoir for temporarily storing and precipitating the initial rainwater, and the water in the reservoir flows into the low-impact development system for further purification treatment under the control of the central control system.
Preferably, the middle and later stage rainwater purification treatment device comprises a shell, wherein a water distribution pipe is arranged at the upper part of the shell and is connected with the first water inlet; the shell is sequentially provided with a third packing layer, a second packing layer and a first packing layer from bottom to top; and the third packing layer is provided with a second water collecting pipe, and the second water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
Preferably, the rainwater recycling system comprises a second water inlet, a plurality of water return pools and a return pipe, and the return pipe is connected with the middle and later stage rainwater purification treatment device and is used for carrying out re-purification treatment on recycled water; a water quality monitoring sensor is arranged at the second water inlet and used for monitoring the water quality of the reuse water flowing into the rainwater reuse system in real time; the water quality monitoring sensor is connected with the central control system, and the recycled water is controlled to flow into the corresponding water return pool and the corresponding return pipe through data collected by the water quality monitoring sensor.
The invention discloses the following technical effects:
(1) according to the invention, the rainwater quality-grading collection and treatment system effectively realizes full collection of rainwater, and quality-grading treatment is carried out on the collected rainwater at the source, so that rainwater with different qualities can be treated in a targeted manner, and the treatment speed and the treatment efficiency are effectively improved;
(2) according to the invention, the low-influence development system is used for purifying initial rainwater and rainwater directly flowing into the low-influence development system in the raining process, so that storm runoff can be effectively controlled on the premise of approaching natural hydrologic cycle, town non-point source pollution is reduced, and meanwhile, the rainwater treatment effect can be effectively improved;
(3) according to the invention, the rainwater is recycled according to the quality by the rainwater recycling system, so that the recycling rate of the rainwater can be effectively improved, and the purpose of saving water is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a structural diagram of a system for treating and recycling rainwater with low influence.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, the present embodiment provides a system for treating and recycling rainwater according to quality under low influence development, including: the system comprises a low-influence development system, a rainwater quality-grading collection and treatment system, a rainwater reuse system and a central control system; the central control system is respectively connected with the low-impact development system, the rainwater quality-based collection and treatment system and the rainwater recycling system; the rainwater quality-grading collection and treatment system is connected with the low-influence development system, and the low-influence development system and the rainwater quality-grading collection and treatment system are both connected with the rainwater recycling system;
the low-impact development system is used for purifying initial rainwater and rainwater which directly flows into the low-impact development system in the rain process;
the rainwater quality-grading collection and treatment system is used for collecting and treating overflow water, roof water and ground water of the low-impact development system, preliminarily filtering the collected rainwater and grading the rainwater at the source; the rainwater quality-grading collection and treatment system is also used for purifying the rainwater in the middle and later periods;
the rainwater recycling system is used for storing and recycling the recycled water according to the quality and refluxing the recycled water unqualified in purification treatment for retreatment;
and the central control system is used for controlling the water flow of the low-influence development system, the rainwater quality-based collection and treatment system and the rainwater recycling system.
The low impact development system comprises: one or more of an ecological grass planting ditch, a sunken green land and a rainwater garden are used for purifying initial rainwater and rainwater which directly flows into the low-impact development system in the rain process; the low-influence development system infiltrates rainwater back into soil through the purification treatment of vegetation root systems and the soil so as to preserve underground water and can recycle the rainwater after the purification treatment.
The low-influence development system comprises a water storage layer, a bark covering layer, a soil layer, a packing layer and a gravel layer which are sequentially arranged from top to bottom.
The aquifer provides temporary storage space for the heavy rain, so that part of sediment is settled at the position, and the height is 150-250 mm; the water storage layer is provided with a liquid level meter, and the liquid level meter is connected with the central control system and used for monitoring the liquid level height of the water storage layer in real time.
The bark covering layer is used for keeping the humidity of soil and avoiding the reduction of permeability caused by hardening of surface soil; meanwhile, a microbial environment is created at the interface of the bark and the soil, so that the growth of microbes and the explanation of organic matters are facilitated, the erosion of runoff rainwater is resisted, and the depth is less than or equal to 75 mm.
The soil layer is used for planting plants, and the plants are cold-resistant, drought-resistant and capable of enduring temporary water immersion (not more than 48 hours); the soil layer has better filtering and adsorbing effects, provides places for adsorbing plant roots and degrading hydrocarbons, metal ions, nutrients and other pollutants by microorganisms, and has the thickness of 200-300 mm.
The filler layer is used for filling natural or artificial materials with strong permeability, the thickness is 0.8-1.2m, and artificial cloth is selected in the embodiment.
The gravel layer is composed of gravels with the particle size not more than 30mm and the thickness of 200-280 mm. The gravel layer is provided with a first water collecting pipe, and the first water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
The rainwater quality-grading collecting and processing system comprises a first water inlet, a waste flow pipe, an initial rainwater purification processing device and a middle and later stage rainwater purification processing device; the first water inlet is connected with the abandon flow pipe, the initial stage rainwater purification treatment device and the middle and later stage rainwater purification treatment device through pipelines respectively, and the first water inlet is connected with the pipelines of the abandon flow pipe, the initial stage rainwater purification treatment device and the middle and later stage rainwater purification treatment device and is provided with an electric valve.
A filtering device and a detection system are arranged at the first water inlet;
the filtering device comprises a pebble layer, a grate and a filter screen which are arranged from top to bottom in sequence; the pebble layer can effectively reduce the flow rate of rainwater entering the rainwater quality-separating collecting and treating system; the filter screen can be taken out independently for cleaning, and the cleaning process is simple and easy to operate; through cobble layer, grate, filter screen can carry out the layering to super large granule filth, the silt that the particle diameter is greater than 5000 microns and filter, realize the preliminary physical separation of filth and silt, avoid the pipe blockage.
The detection system comprises a PH sensor and a flow sensor; the PH sensor and the flow sensor are connected with the central control system, and the central control system controls the opening and closing of the inlet of the flow abandoning pipe, the initial rainwater purification treatment device and the inlet of the middle-later rainwater purification treatment device based on the real-time data collected by the PH sensor and the flow sensor.
Based on the development of modern industry to atmospheric pollution, the pH value of many local rainwater is lower, can't collect as the retrieval and utilization water source, consequently, is to flowing into through setting up the pH sensor the rainwater divides the PH of matter collection processing system to detect, and under the condition that the pH value is less than 5, flows into municipal administration blow off pipe with the rainwater through abandoning the flow tube. Because at the in-process of rainfall, the rainwater has absorbed a large amount of pollutants in the air, make its pollution very serious, and the rainwater runoff has obvious initial stage scouring action, the pollutant is concentrated in the several millimeters rainwater in initial stage, cause the quality of water composition of initial stage rainwater complicated, the processing procedure is complicated, and the rainwater in middle and later stages is comparatively clean, therefore, under the condition that PH is more than or equal to 5, detect discharge through flow sensor, under the condition that discharge is less than preset threshold value, collect initial stage rainwater purification unit with the rainwater, under the condition that discharge is higher than preset threshold value, collect middle and later stage rainwater purification unit with the rainwater, thereby accomplish the branch matter collection of water in source position.
The initial rainwater purification treatment device comprises a reservoir and is used for temporarily storing and precipitating initial rainwater. And under the condition that the liquid level of the water storage layer is lower than a preset value, controlling the water in the water storage tank to flow into the low-influence development system through a central control system to carry out purification treatment.
The middle and later stage rainwater purification treatment device comprises a shell, wherein a water distribution pipe is arranged at the upper part of the shell and is connected with the first water inlet; the shell is sequentially provided with a third packing layer, a second packing layer and a first packing layer from bottom to top; the first packing layer is a coke particle packing with the particle size of 5-8mm and the packing height of 70-80cm and is used for adsorbing peculiar smell; the second packing layer is a quartz sand packing with the particle size of 8-10mm and the packing height of 70-80cm and is used for filtering suspended matters, colloids and particle pollutants in water; the third packing layer is cobblestones or broken stones, the particle size is 20mm-50mm, and the packing height is 20-30 cm. And the third packing layer is provided with a second water collecting pipe, and the second water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
The rainwater recycling system comprises a second water inlet, a plurality of water return pools and a return pipe, and the return pipe is connected with the rainwater purification treatment device at the middle and later stages and is used for carrying out repurification treatment on recycled water; a water quality monitoring sensor is arranged at the second water inlet and is used for monitoring the water quality of the reuse water flowing into the rainwater reuse system in real time, wherein the water quality comprises turbidity, soluble solids and ammonia nitrogen content; the water quality monitoring sensor is connected with the central control system, and the recycled water is controlled to flow into the corresponding water return pool and the corresponding return pipe through data collected by the water quality monitoring sensor.
This embodiment includes first return water pond, second return water pond, third return water pond, first return water pond is used for towards the lavatory, the second return water pond is used for road cleaning fire control and vehicle to wash, the third return water pond is used for urban greening and building site to the realization is to the categorised retrieval and utilization of rainwater, effectively improves the utilization ratio of rainwater.
The specific working process of the system for treating and recycling rainwater with low influence comprises the following steps:
in the rainfall process, rainwater on the roof and the road surface enters a rainwater quality-based collecting and processing system after being primarily filtered by a filtering device, the rainwater quality-based collecting and processing system performs quality-based collection on the rainwater, the rainwater with the PH less than 5 flows into a municipal sewage pipe through an airflow pipe, the initial rainwater with the PH greater than or equal to 5 flows into an initial rainwater purification processing device, and the middle and later stage rainwater with the PH greater than or equal to 5 flows into a middle and later stage rainwater purification processing device;
rainwater in the initial rainwater purification treatment device flows into a low-influence development system for purification treatment after primary precipitation treatment, and the treated rainwater flows into a rainwater recycling system through a first water collecting pipe;
the rainwater in the middle and later stage rainwater purification treatment device is filtered by the three layers of fillers and flows into a rainwater recycling system through the second water collecting pipe;
the rainwater recycling system monitors the quality of the recycled water, recycles the recycled water according to the quality monitoring result, and recycles the recycled water with unqualified quality to the rainwater purification treatment device at the middle and later periods through the return pipe for re-purification treatment.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A rainwater quality-divided treatment and recycling system under low-influence development is characterized by comprising a low-influence development system, a rainwater quality-divided collection and treatment system, a rainwater recycling system and a central control system; the central control system is respectively connected with the low-impact development system, the rainwater quality-based collection and treatment system and the rainwater recycling system; the rainwater quality-grading collection and treatment system is connected with the low-influence development system, and the low-influence development system and the rainwater quality-grading collection and treatment system are both connected with the rainwater recycling system;
the low-impact development system is used for purifying initial rainwater and rainwater which directly flows into the low-impact development system in the rain process;
the rainwater quality-grading collection and treatment system is used for collecting and treating overflow water, roof water and ground water of the low-impact development system, preliminarily filtering the collected rainwater and grading the rainwater at the source; the rainwater quality-grading collection and treatment system is also used for purifying the rainwater in the middle and later periods;
the rainwater recycling system is used for storing and recycling the recycled water according to the quality and refluxing the recycled water unqualified in purification treatment for retreatment;
and the central control system is used for controlling the water flow of the low-influence development system, the rainwater quality-based collection and treatment system and the rainwater recycling system.
2. The system for separately treating and recycling rainwater under low impact development according to claim 1, wherein the system for low impact development comprises: one or more of ecological grass planting ditches, sunken greenbelts, rainwater gardens.
3. The system for separately treating and recycling rainwater under low influence development according to claim 1, wherein the system for low influence development comprises a water storage layer, a soil layer, a filler layer and a gravel layer which are arranged from top to bottom in sequence; the water storage layer is provided with a liquid level meter, and the liquid level meter is connected with the central control system and used for monitoring the liquid level height of the water storage layer in real time; the gravel layer is provided with a first water collecting pipe, and the first water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
4. The system for low impact development rainwater quality separation and reuse according to claim 3, wherein a bark covering layer is further provided above the soil layer.
5. The system for separately treating and recycling rainwater under low influence development according to claim 1, wherein the system for separately collecting and treating rainwater comprises a first water inlet, a flow abandoning pipe, an initial rainwater purification treatment device and a middle and later rainwater purification treatment device; the first water inlet is respectively connected with the flow abandoning pipe, the initial rainwater purification treatment device and the middle and later stage rainwater purification treatment device.
6. The system for separately treating and recycling rainwater under low influence of claim 5, wherein the first water inlet is provided with a filtering device and a detection system, the filtering device is used for reducing the flow rate of rainwater entering the rainwater separate collecting and treating system and primarily filtering ultra-large particle pollutants and silt; the detection system comprises a PH sensor and a flow sensor, wherein the PH sensor and the flow sensor are both connected with the central control system and used for controlling rainwater to flow into the flow abandoning pipe, the initial rainwater purification treatment device and the middle and later stage rainwater purification treatment device according to data collected by the PH sensor and the flow sensor.
7. The system for separately treating and recycling rainwater under low influence development according to claim 6, wherein the filtering device comprises a pebble bed, a grate and a filter screen which are arranged from top to bottom in sequence.
8. The system for separately treating and recycling rainwater under low influence development according to claim 5, wherein the initial rainwater purification treatment device comprises a reservoir for temporarily storing and precipitating the initial rainwater, and the water in the reservoir flows into the low influence development system for further purification treatment under the control of the central control system.
9. The system for separately treating and recycling rainwater under low influence development according to claim 5, wherein the middle and later stage rainwater purification treatment device comprises a shell, a water distribution pipe is arranged at the upper part of the shell, and the water distribution pipe is connected with the first water inlet; the shell is sequentially provided with a third packing layer, a second packing layer and a first packing layer from bottom to top; and the third packing layer is provided with a second water collecting pipe, and the second water collecting pipe is connected with the rainwater recycling system and used for collecting and recycling rainwater.
10. The system for separately treating and recycling rainwater under low influence development according to claim 5, wherein the rainwater recycling system comprises a second water inlet, a plurality of water returning pools and a return pipe, and the return pipe is connected with the rainwater purification treatment device at the middle and later stages and is used for re-purifying the recycled water; a water quality monitoring sensor is arranged at the second water inlet and used for monitoring the water quality of the reuse water flowing into the rainwater reuse system in real time; the water quality monitoring sensor is connected with the central control system, and the recycled water is controlled to flow into the corresponding water return pool and the corresponding return pipe through data collected by the water quality monitoring sensor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980138A (en) * | 2020-08-29 | 2020-11-24 | 北京逸智联科技有限公司 | Sponge city initial rainwater collection system and collection method |
| CN114855932A (en) * | 2022-06-02 | 2022-08-05 | 保定市利源水务技术开发服务中心 | Intelligent rainwater recycling system |
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