CN111825219A

CN111825219A - Rainwater pollution reduction treatment system and method

Info

Publication number: CN111825219A
Application number: CN202010618029.1A
Authority: CN
Inventors: 宫彦章; 郑建汀; 郑卫国; 毛君竹; 田雪; 陈小兵; 高杨; 袁芳芳; 邹飞; 周丽
Original assignee: Shenzhen Wenke Landscape Co Ltd
Current assignee: Shenzhen Wenke Landscape Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-10-27

Abstract

The invention discloses a rainwater pollution-reducing treatment system and a method, wherein the system comprises a plant interception system, a collection and purification system and an intelligent monitoring system, rainwater is firstly guided to the collection and purification system by the plant interception system according to a preset path, pollutants in the rainwater are absorbed and decomposed in the drainage process, then the rainwater guided to the collection and purification system by the plant interception system according to the preset path is collected by the collection and purification system, the collected rainwater is repaired and purified, then the growth condition, the water flow condition and the water quality condition of plants in the plant interception system and the collection and purification system are monitored in real time by the intelligent monitoring system, the pollution-reducing treatment process of the plant interception system and the collection and purification system is managed according to the monitoring result, the rainwater pollution-reducing treatment effect can be effectively improved, and the utilization rate of rainwater resources is improved, the waste of rainwater resources is avoided.

Description

Rainwater pollution reduction treatment system and method

Technical Field

The invention relates to the technical field of rainwater treatment, in particular to a rainwater pollution reduction treatment system and a rainwater pollution reduction treatment method.

Background

In recent years, the problems of insufficient water safety, water environment pollution, water resource shortage and the like are increasingly highlighted under the influence of factors such as frequent extreme climate, increased construction strength, imperfect drainage and waterlogging prevention systems and the like. When the sponge city is put forward, the functions of absorbing, storing, permeating and slowly releasing rainwater of the city infrastructure are fully exerted, and rainwater runoff can be effectively controlled.

However, the construction process of the sponge city still has the following limitations: (1) the rainwater is still guided to a drainage system mainly, and the drainage pipe diameter is selectively increased, so that the retention time of rainwater is short, a large amount of solid particles, heavy metals, organic pollutants and the like in the rainwater at the initial stage are not effectively purified and are difficult to reuse, so that a large amount of rainwater is still drained through the drainage system, and rainwater resources are not effectively utilized; (2) the intelligent management can not be carried out on the operation process of the sponge city, so that a large amount of time is consumed to find the problem reason when any link of the sponge city fails, and the rainwater resource is easily lost and wasted when any link fails. Therefore, the problem that rainwater resources are wasted due to the fact that rainwater cannot be effectively purified and intelligent supervision on a rainwater purification process cannot be carried out still exists in the construction of the sponge city at present.

Disclosure of Invention

The invention mainly aims to provide a rainwater pollution reduction treatment system and method, and aims to solve the problems that rainwater cannot be effectively purified and rainwater resources are wasted due to intelligent supervision on a rainwater purification process in the prior art.

In order to achieve the purpose, the invention provides a rainwater pollution-reducing treatment system, which comprises a plant interception system, a collection and purification system and an intelligent monitoring system:

the plant interception system is used for guiding rainwater to the collection and purification system according to a preset path and absorbing and decomposing pollutants in the rainwater in the drainage process;

the collecting and purifying system is used for collecting rainwater which is drained to the collecting and purifying system by the plant intercepting system according to a preset path and restoring and purifying the collected rainwater;

and the intelligent monitoring system is used for monitoring the growth condition, the water flow condition and the water quality condition of the plants in the plant interception system and the collection and purification system in real time and managing the pollution reduction treatment process of the plant interception system and the collection and purification system according to the monitoring result.

Optionally, the plant interception system comprises:

the rainwater separation system comprises a preset path which is set based on a fall chromatography principle, and when rainwater exists, the rainwater is guided to the collection and purification system according to the preset path;

water purification plant interception system includes according to the water purification plant that preset route was laid and be used for cultivateing water purification plant's filtration adsorption matrix, filtration adsorption matrix is used for gathering the root system environment that the microorganism formed the biomembrane and improved water purification plant, in the drainage process, through corresponding pollutant in the biomembrane absorption and decomposition rainwater, nitrogen phosphorus nutrient substance and the micro-permanent pollutant in the rainwater are got rid of through the water purification plant after the improvement.

Optionally, the collection and purification system comprises:

the rainwater collecting system is used for collecting rainwater which is drained to the rainwater collecting system by the plant intercepting system according to a preset path;

the plant purification system comprises a functional water purification plant for purifying suspended pollutants in rainwater collected by the rainwater collection system;

and the water body restoration system is used for restoring and purifying the rainwater collected by the rainwater collection system according to different levels.

Optionally, the water body remediation system comprises:

the ecological floating island system is used for removing nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater;

the microorganism restoring system is used for restoring and activating the purification function of microorganisms in the whole water body, and restoring and purifying the collected rainwater through the restored and activated microorganisms;

and the bottom sediment in-situ remediation system is used for remedying and purifying the bottom water body of the collected rainwater through in-situ chemical treatment and in-situ bioremediation under in-situ masking.

Optionally, the intelligent monitoring system includes:

the plant monitoring system is used for monitoring the growth states of different plants in the plant interception system and the collection and purification system and feeding back the monitored growth state data to the intelligent management system;

the water flow monitoring system is used for monitoring the water runoff when rainwater flows through the plant interception system and the collection and purification system and feeding back the monitored water runoff data to the intelligent management system;

the water quality monitoring system is used for monitoring the water quality conditions of rainwater in the plant interception system and the collection and purification system and feeding back the monitored water quality condition data to the intelligent management system;

and the intelligent management system is used for receiving monitoring data fed back by the plant monitoring system, the water flow monitoring system and the water quality monitoring system and remotely managing the sewage treatment processes of the plant intercepting system and the collecting and purifying system according to the received monitoring data.

In order to achieve the above object, the present invention further provides a rainwater pollution reduction treatment method, which is applied to a rainwater pollution reduction treatment system, wherein the rainwater pollution reduction treatment system comprises a plant interception system, a collection purification system and an intelligent monitoring system, and the method comprises the following steps:

draining rainwater to a collection and purification system through a plant interception system according to a preset path, and absorbing and decomposing pollutants in the rainwater in the drainage process;

collecting rainwater drained to the collecting and purifying system by the plant intercepting system according to a preset path through the collecting and purifying system, and repairing and purifying the collected rainwater;

the growth condition, the water flow condition and the water quality condition of plants in the plant interception system and the collection and purification system are monitored in real time through the intelligent monitoring system, and the pollution reduction treatment process of the plant interception system and the collection and purification system is managed according to the monitoring result.

Optionally, the plant intercepting system comprises a rainwater separation system and a water purification plant intercepting system, the water purification plant intercepting system comprises a water purification plant laid according to the preset path and a filtration adsorption matrix used for culturing the water purification plant, the rainwater is drained to the collection and purification system through the plant intercepting system according to the preset path, and the step of absorbing and decomposing pollutants in the rainwater in the drainage process comprises:

a preset path is set through the rainwater separation system, and when rainwater exists, the rainwater is guided to the collection and purification system according to the preset path; the preset path is set based on a fall chromatography principle;

gathering microorganisms through a filtering adsorption matrix in the water purification plant intercepting system to form a biological membrane and improve the root system environment of the water purification plant, absorbing and decomposing corresponding pollutants in rainwater by using the formed biological membrane in the drainage process, and removing nitrogen and phosphorus nutrients and trace persistent pollutants in the rainwater by using the improved water purification plant.

Optionally, the collecting and purifying system includes a rainwater collecting system, a water body repairing system and a plant purifying system, the rainwater drained by the plant intercepting system according to a preset path is collected through the collecting and purifying system, and the steps of repairing and purifying the collected rainwater include:

collecting rainwater drained to the rainwater collection system by the plant interception system according to a preset path through the rainwater collection system;

purifying suspended pollutants in rainwater collected by the rainwater collection system through functional water purification plants in the plant purification system;

the rainwater collected by the rainwater collection system is restored and purified according to different levels through the water restoration system.

Optionally, the water body remediation system includes an ecological floating island system, a microbial remediation system and a sediment in-situ remediation system, and the step of remedying and purifying the water bodies at different levels in the rainwater collected by the rainwater collection system by the water body remediation system includes:

removing nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater through an ecological floating island system;

restoring and activating the purification function of microorganisms in the whole water body through a microorganism restoration system, and restoring and purifying the collected rainwater through the restored and activated microorganisms;

and repairing and purifying the bottom water body of the collected rainwater through in-situ chemical treatment and in-situ bioremediation under in-situ masking by a bottom mud in-situ repairing system.

Optionally, the intelligent monitoring system includes plant monitoring system, rivers monitoring system, water quality monitoring system and intelligent management system, carry out real-time supervision to the growth condition, the rivers condition and the water quality condition of plant among the plant interception system and the collection clean system through intelligent monitoring system to the step that carries out the management to plant interception system and collection clean system's pollution abatement treatment process according to the monitoring result includes:

monitoring the growth states of different plants in the plant interception system and the collection and purification system through a plant monitoring system, and feeding back the monitored growth state data to the intelligent management system;

monitoring the water runoff when rainwater flows through the plant interception system and the collection and purification system through a water flow monitoring system, and feeding back the monitored water runoff data to an intelligent management system;

monitoring the water quality conditions of rainwater in the plant interception system and the collection and purification system through the water quality monitoring system, and feeding back the monitored water quality condition data to the intelligent management system;

monitoring data fed back by the plant monitoring system, the water flow monitoring system and the water quality monitoring system are received through the intelligent management system, and the plant interception system and the sewage treatment process of the collection and purification system are remotely managed according to the received monitoring data.

According to the embodiment of the invention, rainwater is guided to the collecting and purifying system through the plant intercepting system according to the preset path, pollutants in the rainwater are absorbed and decomposed in the guiding process, the rainwater guided to the collecting and purifying system by the plant intercepting system according to the preset path is collected through the collecting and purifying system, the collected rainwater is repaired and purified, the growth condition, the water flow condition and the water quality condition of plants in the plant intercepting system and the collecting and purifying system are monitored in real time through the intelligent monitoring system, the pollution reduction treatment process of the plant intercepting system and the collecting and purifying system is managed according to the monitoring result, the intelligent real-time supervision in the rainwater pollution reduction treatment process is realized, and the effect of rainwater pollution reduction treatment can be effectively improved through the plant intercepting system and the collecting and purifying system, so that the utilization rate of rainwater resources is improved.

Drawings

FIG. 1 is a block diagram of a rainwater pollution-reduction treatment system according to a first embodiment of the present invention;

FIG. 2 is a block diagram of a rainwater pollution-reduction treatment system according to a second embodiment of the present invention;

FIG. 3 is a block diagram of a rainwater pollution-reduction treatment system according to a third embodiment of the present invention;

FIG. 4 is a block diagram illustrating a fourth embodiment of a rainwater pollution-reduction treatment system according to the present invention;

FIG. 5 is a schematic flow chart of a first embodiment of the rainwater pollution-reduction treatment method of the invention;

FIG. 6 is a schematic flow chart of a rainwater pollution-reduction treatment method according to a second embodiment of the invention;

FIG. 7 is a schematic flow chart of a rainwater pollution-reduction treatment method according to a third embodiment of the invention;

fig. 8 is a schematic flow chart of a rainwater pollution-reduction treatment method according to a fourth embodiment of the invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 1 is a block diagram illustrating a rainwater pollution reduction processing system according to a first embodiment of the present invention. The rainwater pollution-reducing treatment system comprises a plant interception system 10, a collection and purification system 20 and an intelligent monitoring system 30.

In this embodiment, the plant intercepting system 10 functions as: the rainwater is drained to the collection purification system 20 according to a preset path. The preset path needs to be set to satisfy the following two conditions: firstly, in the process of guiding rainwater to the collecting and purifying system 20 according to a preset path, the runoff of rainwater can be effectively reduced, so that the problems of water resource waste caused by overlarge runoff of rainwater and difficulty in purification caused by short retention time when the runoff of rainwater is overlarge are solved; secondly, when rainwater is drained to the collection and purification system 20 according to a preset path, ecological systems such as mountains, water, forests, fields and lakes and the like can be fully utilized to purify rainwater in the drainage process, and source emission reduction is realized. The ecological system can comprise a natural ecological system and/or an artificial ecological system, particularly an ecological system formed by artificial operation, and can comprise artificially screened and planted water purification plants, artificial wetlands, artificial lakes and the like. Thus, the plant interception system 10 further functions to: the pollutants in the rainwater are absorbed and decomposed in the process of guiding the rainwater to the collection and purification system 20 according to a preset path.

Because the pollution degree of the rainwater from different sources, the components of pollutants, the proportion of the pollutants and the like are different, before the rainwater is drained to the collecting and purifying system 20 by the plant intercepting system 10 according to a preset path and is collected by the collecting and purifying system 20, whether the water quality after passing through the plant intercepting system 10 reaches an expected standard (for example, the water quality reaches a class III standard) can be detected firstly, and if the water quality reaches the expected standard, the rainwater after passing through the plant intercepting system 10 is directly shunted to a recovery device according to a first shunt path for recovery and utilization; if the water quality after passing through the plant interception system 10 does not reach the expected standard, the water is directly drained to the collection and purification system 20, the water is further purified after being collected by the collection and purification system 20, and the purified water is shunted to a recovery device for recycling according to a second shunt path when the water quality after being further purified reaches the expected standard; and when the rainwater passing through the collection and purification system 20 still does not reach the expected standard, the rainwater with the water quality not meeting the expected standard can be shunted to the collection and purification system 20 again through a third shunt path for collection and purification until the rainwater reaches the expected standard, and if the rainwater does not reach the expected standard after the circulation for the preset times, an intelligent monitoring system sends alarm information to a manager or a user of the rainwater pollution reduction treatment system so as to remind the manager or the user to check whether a corresponding link or system in the treatment process is abnormal or not. The water quality monitoring and shunting process can be realized by controlling corresponding intelligent switches (such as a monitoring switch, a shunting switch and the like) by an intelligent monitoring system.

When the quality of the rainwater passing through the plant intercepting system 10 does not meet the expected standard, the rainwater is drained to the collecting and purifying system 20 according to the preset path, and then the collecting and purifying system 20 can collect the rainwater drained to the collecting and purifying system 20 and repair and purify the collected rainwater. The purifying scheme of the collecting and purifying system 20 for purifying the collected rainwater can be determined by combining the pollution degree, pollutant components, pollutant ratio and the like of the rainwater according to the difference of the preset paths. The specific purification process can be to adopt a biomembrane method to adsorb and degrade organic matters in the rainwater so as to achieve the purpose of purification; or the purpose of purification can be achieved by adding chemical agents, such as nitrogen removal agents and phosphorus removal agents, applying a super-magnetic separation water body purification technology and the like; the artificial wetland technology can also be adopted, so that sewage enters the wetland from one end of the wetland through the water distribution pipe channel to contact with a biological membrane or a root system of an aquatic plant, thereby achieving the purpose of water body purification and the like; or can be used in combination in multiple modes to achieve the purpose of purifying rainwater and improving the utilization rate. In this embodiment, the specific purification means is not limited, and may be determined according to the pollution degree of the rainwater, the pollutant components, the pollutant ratio, and the like, and the specific application requirements (such as low cost or easy implementation).

In addition, the growth condition, the water flow condition and the water quality condition of the plants in the plant interception system 10 and the collection and purification system 20 can be monitored in real time through the intelligent monitoring system 30, and the pollution reduction treatment processes of the plant interception system 10 and the collection and purification system 20 can be managed in real time according to the monitoring results, so that the optimization control is intelligently performed. Specifically, when rainstorm occurs, the intelligent monitoring system 30 can monitor the water flow condition in real time and control corresponding facilities to respond quickly, and when drought occurs, the intelligent monitoring system 30 can control the rainwater pollution reduction treatment system to perform intelligent drip irrigation by using the accumulated rainwater reaching the recycling standard; in the water collecting process, the intelligent monitoring system 30 can monitor the water quality condition in real time, so that secondary pollution is avoided, and the shunting and recycling can be reasonably controlled according to the water quality condition; the intelligent monitoring system 30 can also monitor the growth conditions of plants in each system in real time, so that the plants cannot be well purified when the growth conditions are not good, and corresponding feedback information can be generated and sent to a manager or a user of the rainwater pollution reduction treatment system when the growth conditions are not good, so that the manager or the user can be prompted to perform corresponding treatment in time. Certainly, in the specific management process, the growth condition, the water flow condition and the water quality condition of the plants in the plant intercepting system 10 and the collecting and purifying system 20 need to be comprehensively considered, and then the plants can be reasonably purified and drained, so that the recovery and utilization rate of the rainwater is improved.

This embodiment is through plant interception system according to predetermineeing the route with rainwater drainage to collecting clean system, and absorb and decompose the pollutant in the rainwater at the drainage in-process, collect clean system and collect plant interception system according to predetermineeing the route drainage to collecting clean system's rainwater, and restore and purify the rainwater of collecting, intelligent monitoring system is to the plant interception system and collect the growth condition of plant among the clean system, real-time supervision is carried out to rivers condition and quality of water condition, and manage the pollution abatement processing procedure of plant interception system and collection clean system according to the monitoring result, thereby realize the reasonable collection and the purification of rainwater, improve the utilization ratio of rainwater resource, avoid the waste of rainwater resource.

Referring to fig. 2, fig. 2 is a block diagram of a rainwater pollution reduction treatment system according to a second embodiment of the present invention, which is based on the first embodiment. In this embodiment, the plant intercepting system 10 includes: a rainwater separation system 11 and a clean water plant interception system 12.

The rainwater separation system 11 comprises a preset path which is set based on a fall chromatography principle, and when rainwater exists, the rainwater can be guided to the collection and purification system 20 according to the preset path. Specifically, the preset path is set to be a roof-wall-ground-wetland-water body by combining a fall level with garden planning, so that rainwater is gathered according to the preset path, the gathered rainwater can flow into a ground green corridor along the preset path, power driving is not needed, and unpowered separation of the rainwater is realized.

The water purification plant intercepting system 12 comprises water purification plants laid according to the preset path and a filtration adsorption matrix for culturing the water purification plants. Wherein, the filtration adsorption matrix is used for gathering the root system environment that the microorganism formed the biomembrane and improved water purification plant to in the drainage process, can pass through corresponding pollutant in the biomembrane absorption and decomposition rainwater to water purification plant after through the improvement gets rid of nitrogen phosphorus nutrient substance and the micro-permanent pollutant in the rainwater. Specifically, a water purification plant interception system with a roof, a wall surface, a ground, a wetland and a water body which are operated in a multistage series connection mode can be built, corresponding functional plants can be planted in each link of the system to quickly absorb a large amount of nutrients such as nitrogen and phosphorus, removal effects of different plants on pollutants can be cooperatively exerted, and the self-purification function of the plants is enhanced. For example, planting a functionally optimized plant with high nitrogen element transferring capacity, absorbing nutrient substances through the root system of the plant to realize system resource utilization, and achieving the purpose of removing nutrient-rich substances such as nitrogen, phosphorus and the like; the residual NH3-N, NO2-N can be basically transformed and removed by adsorbing and decomposing organic matters through microorganisms on plant stems and roots, so that the water quality is deeply clarified. Therefore, an ecological system with self-purification capacity is established through the combined action of microbial adsorption and decomposition of organic substances, absorption and conversion of nutrient substances by functional plants, life activities of animals in water and the like, and the aim of removing nitrogen, phosphorus and trace persistent pollutants (such as persistent organic pollutants, heavy metals and radioactive pollutants) again can be fulfilled.

In the embodiment, a preset path is set through a rainwater separation system based on a fall chromatography principle, so that rainwater is drained to a collection and purification system according to the preset path when rainwater exists; and in the drainage process, gather the root system environment that the microorganism formed biomembrane and improvement water purification plant through the filtration adsorption matrix among the water purification plant interception system, in order to pass through corresponding pollutant in the biomembrane absorption and decomposition rainwater to water purification plant after through the improvement gets rid of nitrogen phosphorus nutrient substance and the micro persistent pollutant in the rainwater, thereby before drainage rainwater to collection clean system, can carry out the initial evolution through water purification plant interception system in the drainage process, then drainage rainwater after the initial evolution to collecting clean system again, purified the treatment effeciency of collecting clean system through two steps, and improved the treatment effect of rainwater pollution abatement treatment system.

Referring to fig. 3, fig. 3 is a block diagram of a rainwater pollution reduction treatment system according to a third embodiment of the present invention, which is based on the first embodiment.

In this embodiment, the collection and purification system 20 includes: a rainwater collection system 21, a plant purification system 22 and a water body restoration system 23.

The rainwater collection system 21 can comprise a rainwater collection device, rainwater drained from the plant interception system 10 to the rainwater collection system 21 according to a preset path can be collected through the rainwater collection device, the rainwater collection device can comprise a grass planting ditch and an overflow well, the grass planting ditch can comprise an anti-seepage shell paved with a grass skin layer, a matrix layer, a protective layer, a quartz sand layer, a volcanic rock layer and the like, and a water seepage guide pipe is arranged at the lower part of the volcanic rock layer and can penetrate into a cavity of the overflow well through a water inlet of the overflow well; the plant purification system 22 may include functional water purification plants, which may be a flooding-resistant water purification landscape plant system, wherein the flooding-resistant water purification landscape plant system may include a plurality of (e.g., 20) water purification landscape plants that are planted in the collected rainwater water body and screened through a flooding stress test, a water and soil retention test, etc., and the plant purification system and the functional water purification plants in the plant interception system 10 may form a water purification landscape plant system, and the plants of different systems may cooperate with each other. In this embodiment, suspended pollutants in the water can be effectively reduced by the functional water purification plants in the plant purification system 22; in addition, because pollutants, pollution degrees and treatment technologies in water bodies at different levels are different, the water body restoration system 23 can restore and purify the rainwater collected by the rainwater collection system 21 according to different water body levels.

Specifically, the water body remediation system 23 may include: an ecological floating island system 231, a microorganism remediation system 232 and a bottom sediment in-situ remediation system 233. In this embodiment, the ecological floating island system 231 can be constructed by screening floating island plants, floating island plant planting materials and film-forming materials, and investigating the impact resistance and the microbial agent strengthening effect of the floating island materials. The removal rate of total nitrogen and total phosphorus can be effectively improved through the constructed ecological floating island system 231, and compared with the traditional floating island, the reduction range of the removal rate of pollutants along with the change of temperature is smaller. And when nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater are removed through the ecological floating island system 231, the system has better stability and treatment efficiency.

The microorganism restoring system 232 restores and activates the purification function of microorganisms in the whole water body by compensating and strengthening the deficiency condition of the self-purification function of the water body, and then restores and purifies the collected rainwater by the restored and activated microorganisms, specifically, the water body ecological self-purification capacity is restored by a microorganism bacterium agent to accelerate the degradation of pollutants in the water body, wherein the microorganism bacterium agent can be prepared from a single strain or a beneficial microorganism bacterium agent which is prepared from a compound microorganism bacterium group and can degrade or mineralize target pollutants. The embodiment adopts the aeration ozone, the addition of the high-efficiency microbial agent and the biological promoting liquid, the planting of aquatic plants and the like to construct the combined bioremediation agent, and can promote the remediation effect of special microorganisms. Specifically, a nano aeration coupling microorganism technology can be adopted to remove harmful gases, increase the dissolved oxygen of water and activate dormant microorganisms. The nano aeration coupling microorganism technology is based on the premise of intercepting the sewage collecting pipe, and blocks the continuous influence of a pollution source on a water body. Then carrying out bottom harmful gas out of the water surface by adopting bottom oxygenation, water flow rotation and up-down convection modes to increase dissolved oxygen in the water body; and activating the dormant microorganisms by using a microorganism culture device to ensure the activity and the dosage of the microorganisms, decomposing and converting pollutants in water into substances and energy required by the growth of the microorganisms through the metabolic activity of the microorganisms, solving the problem of water quality fundamentally and recovering the self-purification capacity of the water body. Wherein, different microbial agent formulas can be selected according to different pollution sources and pollution degrees in the microbial culture device, and the microbial culture device can be widely applied to the treatment of landscape water bodies, river water bodies, municipal sewage, industrial wastewater, domestic sewage and the like.

In addition, the bottom sediment in-situ remediation system 233 is used for remediation and purification of the bottom water body of the collected rainwater through in-situ chemical treatment and in-situ bioremediation under in-situ masking. Specifically, the substrate sludge in-situ remediation technology can be used for treating pollutants in the substrate sludge, wherein the substrate sludge in-situ remediation technology refers to a technology for in-situ pollutant treatment without dredging, and specifically can be used for carrying out in-situ chemical treatment and in-situ bioremediation under in-situ masking, so as to achieve the purpose of restoring and purifying the bottom water body of the collected rainwater.

The embodiment removes nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater through the ecological floating island system, recovers and activates the purification function of microorganisms in the whole water body through the microorganism repair system, repairs and purifies the collected rainwater through the recovered and activated microorganisms, repairs and purifies the bottom water body of the collected rainwater through the bottom sediment in-situ repair system under in-situ masking through in-situ chemical treatment and in-situ biological repair, realizes the purification treatment of pollutants in the water bodies of different levels, avoids the condition that the pollutants in the water bodies of different levels reach the standard or are not treated, and improves the effect of rainwater pollution reduction treatment.

Referring to fig. 4, fig. 4 is a block diagram illustrating a fourth embodiment of the rainwater pollution reduction treatment system according to the present invention, and the fourth embodiment of the rainwater pollution reduction treatment system according to the present invention is proposed based on the above first embodiment.

In this embodiment, the intelligent monitoring system 30 includes a plant monitoring system 31, a water flow monitoring system 32, a water quality monitoring system 33, and an intelligent management system 34. The plant monitoring system 31 is used for monitoring the growth states of different plants in the plant interception system 10 and the collection and purification system 20, and feeding back the monitored growth state data to the intelligent management system; the water flow monitoring system 32 is used for monitoring the water runoff when rainwater flows through the plant intercepting system 10 and the collecting and purifying system 20, and feeding back the monitored water runoff data to the intelligent management system; the water quality monitoring system 33 is used for monitoring the water quality conditions of the rainwater in the plant interception system 10 and the collection and purification system 20 and feeding back the monitored water quality condition data to the intelligent management system; and the intelligent management system 34 is used for receiving monitoring data fed back by the plant monitoring system 31, the water flow monitoring system 32 and the water quality monitoring system 33 and remotely managing the sewage treatment processes of the plant intercepting system 10 and the collecting and purifying system 20 according to the received monitoring data.

Specifically, the intelligent monitoring system 30 can actively sense various monitoring indexes such as water flow conditions (e.g., runoff in different treatment links), water quality conditions (e.g., pollution source in rainwater, pollution degree and different pollutant component ratios) and plant growth conditions (e.g., soil dryness and humidity, and plant water demand conditions) of the corresponding monitoring system. According to the monitoring results fed back by each monitoring system, the intelligent response can be made, and the plant interception system 10 and the collection and purification system 20 are controlled to make corresponding treatment. The intelligent monitoring system 30 may utilize a LiDAR (LiDAR) platform built by various platforms such as an unmanned aerial vehicle and an automobile to perform three-dimensional scanning on the terrain and features of a city to construct a high-precision three-dimensional city model, which is used for precise simulation of a rainwater collection and purification process, a water catchment process and a drainage process in a rainwater pollution reduction treatment system and accurate prediction of a runoff diffusion range, a flow path and a ponding area; the monitored video is then analyzed by the system integration platform of the intelligent monitoring system 30 to analyze the monitoring results fed back by each monitoring system. The system integration platform is developed based on a cloud computing platform, can realize department data integration and sharing, and has a big data analysis function, a preset early warning information issuing function and a remote intelligent management function.

In the embodiment, the plant monitoring system is used for monitoring the growth states of different plants in the plant interception system and the collection and purification system, the water flow monitoring system is used for monitoring the water runoff when rainwater flows through the plant interception system and the collection and purification system, the water quality monitoring system is used for monitoring the water quality condition of the rainwater in the plant interception system and the collection and purification system, then the data monitored by each monitoring system is fed back to the intelligent management platform, the intelligent management platform can remotely manage the sewage treatment process of the plant interception system and the collection and purification system according to the received monitoring data after receiving the monitoring data fed back by the plant monitoring system, the water flow monitoring system and the water quality monitoring system, the synergy among the systems can be fully allocated and exerted, the problems that the sudden state cannot be responded in time and the pollution reduction treatment effect is poor due to the fact that the water flow, the water quality and the plant growth condition cannot be monitored, the timeliness and the treatment efficiency of rainwater pollution reduction treatment are improved, and the pollution reduction treatment effect can be improved.

Referring to fig. 5, fig. 5 is a flowchart of a rainwater pollution reduction processing method according to a first embodiment of the present invention, in this embodiment, the rainwater pollution reduction processing method is applied to a rainwater pollution reduction processing system, and the rainwater pollution reduction processing system includes a plant intercepting system, a collecting and purifying system, and an intelligent monitoring system. The rainwater pollution-reducing treatment method comprises the following steps:

step S10: draining rainwater to a collection and purification system through a plant interception system according to a preset path, and absorbing and decomposing pollutants in the rainwater in the drainage process;

step S20: collecting rainwater drained to the collecting and purifying system by the plant intercepting system according to a preset path through the collecting and purifying system, and repairing and purifying the collected rainwater;

step S30: the growth condition, the water flow condition and the water quality condition of plants in the plant interception system and the collection and purification system are monitored in real time through the intelligent monitoring system, and the pollution reduction treatment process of the plant interception system and the collection and purification system is managed according to the monitoring result.

In this embodiment, the plant interception system functions as follows: and (4) draining the rainwater to a collection and purification system according to a preset path. The preset path needs to be set to satisfy the following two conditions: firstly, in the process of guiding rainwater to a collecting and purifying system according to a preset path, the runoff of the rainwater can be effectively reduced, so that the problems of water resource waste caused by overlarge runoff of the rainwater and difficulty in purification caused by short retention time when the runoff of the rainwater is overlarge are solved; secondly, when rainwater is drained to the collecting and purifying system according to a preset path, ecological systems such as mountains, water, forests, fields and lakes and the like can be fully utilized to purify rainwater in the drainage process, and source emission reduction is realized. The ecological system can comprise a natural ecological system and/or an artificial ecological system, particularly an ecological system formed by artificial operation, and can comprise artificially screened and planted water purification plants, artificial wetlands, artificial lakes and the like. Thus, the action of the plant interception system further comprises: in the process of guiding the rainwater to the collecting and purifying system according to the preset path, pollutants in the rainwater are absorbed and decomposed.

Because the pollution degree of rainwater from different sources, the components of pollutants, the proportion of pollutants and the like are different, the rainwater is drained to the collecting and purifying system by the plant intercepting system according to a preset path, before being collected by the collecting and purifying system, whether the water quality after passing through the plant intercepting system reaches an expected standard (such as a III-class standard) can be detected, and if the water quality reaches the expected standard, the rainwater after passing through the plant intercepting system is directly shunted to the recovery device according to a first shunt path for recovery and utilization; if the water quality after passing through the plant interception system does not reach the expected standard, the water is directly drained to the collection and purification system, the water is further purified after being collected by the collection and purification system, and the purified water is shunted to the recovery device according to a second shunt path for recycling when the further purified water quality reaches the expected standard; and when the rainwater passing through the collecting and purifying system still does not reach the expected standard, the rainwater with the water quality not meeting the expected standard can be shunted to the collecting and purifying system again through a third shunt path for collecting and purifying until the rainwater reaches the expected standard, and if the rainwater does not reach the expected standard after the circulation for the preset times, the intelligent monitoring system sends alarm information to a manager or a user of the rainwater pollution-reducing treatment system so as to remind the manager or the user to check whether a corresponding link or the system is abnormal in the treatment process. The water quality monitoring and shunting process can be realized by controlling corresponding intelligent switches (such as a monitoring switch, a shunting switch and the like) by an intelligent monitoring system.

When the water quality of the rainwater passing through the plant interception system does not reach the expected standard, the rainwater is drained to the collection and purification system according to the preset path, and then the collection and purification system can collect the rainwater drained to the collection and purification system and repair and purify the collected rainwater. The purification scheme of the collection and purification system for purifying the collected rainwater can be determined by combining the pollution degree, pollutant components, pollutant proportion and the like of the rainwater according to the difference of the preset paths. The specific purification process can be to adopt a biomembrane method to adsorb and degrade organic matters in the rainwater so as to achieve the purpose of purification; or the purpose of purification can be achieved by adding chemical agents, such as nitrogen removal agents and phosphorus removal agents, applying a super-magnetic separation water body purification technology and the like; the artificial wetland technology can also be adopted, so that sewage enters the wetland from one end of the wetland through the water distribution pipe channel to contact with a biological membrane or a root system of an aquatic plant, thereby achieving the purpose of water body purification and the like; or can be used in combination in multiple modes to achieve the purpose of purifying rainwater and improving the utilization rate. In this embodiment, the specific purification means is not limited, and may be determined according to the pollution degree of the rainwater, the pollutant components, the pollutant ratio, and the like, and the specific application requirements (such as low cost or easy implementation).

In addition, the growth condition, the water flow condition and the water quality condition of the plants in the plant interception system and the collection and purification system can be monitored in real time through the intelligent monitoring system, the pollution reduction treatment process of the plant interception system and the collection and purification system is managed in real time according to the monitoring result, and optimization control is intelligently carried out. Specifically, when rainstorm occurs, the intelligent monitoring system can monitor the water flow condition in real time and control corresponding facilities to respond quickly, and when drought occurs, the intelligent monitoring system can control the rainwater pollution reduction treatment system to make intelligent drip irrigation by using accumulated rainwater reaching the recycling standard; in the water collecting process, the intelligent monitoring system can monitor the water quality condition in real time, so that secondary pollution is avoided, and the shunting and recycling can be reasonably controlled according to the water quality condition; the intelligent monitoring system can also monitor the growth condition of plants in each system in real time, so that the plants cannot play a good purifying role when the growth condition is not good, and corresponding feedback information can be generated and sent to a manager or a user of the rainwater pollution reduction treatment system when the growth condition is not good, so that the manager or the user can be prompted to perform corresponding treatment in time. Certainly, in the specific management process, the growth condition, the water flow condition and the water quality condition of plants in the plant interception system and the collection and purification system need to be comprehensively considered, and then reasonable purification and drainage can be realized, so that the recovery and utilization rate of rainwater is improved.

Referring to fig. 6, fig. 6 is a flowchart of a second embodiment of the rainwater pollution reduction treatment method according to the present invention, and the second embodiment of the rainwater pollution reduction treatment method according to the present invention is proposed based on the above first embodiment.

In this embodiment, the plant intercepting system includes a rainwater separation system and a water purification plant intercepting system, the water purification plant intercepting system includes a water purification plant laid according to the preset path and a filtration adsorption substrate for culturing the water purification plant, and step S10 includes:

step S11: a preset path is set through the rainwater separation system, and when rainwater exists, the rainwater is guided to the collection and purification system according to the preset path; the preset path is set based on a fall chromatography principle;

step S12: gathering microorganisms through a filtering adsorption matrix in the water purification plant intercepting system to form a biological membrane and improve the root system environment of the water purification plant, absorbing and decomposing corresponding pollutants in rainwater by using the formed biological membrane in the drainage process, and removing nitrogen and phosphorus nutrients and trace persistent pollutants in the rainwater by using the improved water purification plant.

In this embodiment, the rainwater separation system includes a preset path that is set based on a fall chromatography principle, and when rainwater exists, the rainwater can be drained to the collection purification system according to the preset path. Specifically, the preset path is set to be a roof-wall-ground-wetland-water body by combining a fall level with garden planning, so that rainwater is gathered according to the preset path, the gathered rainwater can flow into a ground green corridor along the preset path, power driving is not needed, and unpowered separation of the rainwater is realized.

The water purification plant intercepting system comprises water purification plants laid according to the preset path and a filtering and adsorbing substrate used for culturing the water purification plants. Wherein, the filtration adsorption matrix is used for gathering the root system environment that the microorganism formed the biomembrane and improved water purification plant to in the drainage process, can pass through corresponding pollutant in the biomembrane absorption and decomposition rainwater to water purification plant after through the improvement gets rid of nitrogen phosphorus nutrient substance and the micro-permanent pollutant in the rainwater. Specifically, a water purification plant interception system with a roof, a wall surface, a ground, a wetland and a water body which are operated in a multistage series connection mode can be built, corresponding functional plants can be planted in each link of the system to quickly absorb a large amount of nutrients such as nitrogen and phosphorus, removal effects of different plants on pollutants can be cooperatively exerted, and the self-purification function of the plants is enhanced. For example, planting a functionally optimized plant with high nitrogen element transferring capacity, absorbing nutrient substances through the root system of the plant to realize system resource utilization, and achieving the purpose of removing nutrient-rich substances such as nitrogen, phosphorus and the like; the residual NH3-N, NO2-N can be basically transformed and removed by adsorbing and decomposing organic matters through microorganisms on plant stems and roots, so that the water quality is deeply clarified. Therefore, an ecological system with self-purification capacity is established through the combined action of microbial adsorption and decomposition of organic substances, absorption and conversion of nutrient substances by functional plants, life activities of animals in water and the like, and the aim of removing nitrogen, phosphorus and trace persistent pollutants (such as persistent organic pollutants, heavy metals and radioactive pollutants) again can be fulfilled.

Referring to fig. 7, fig. 7 is a flow chart of a third embodiment of the rainwater pollution reduction treatment method according to the present invention, and the third embodiment of the rainwater pollution reduction treatment method according to the present invention is proposed based on the above first embodiment. Collect clean system including rainwater collection system, water body repair system and plant clean system, step 20 includes:

step S21: collecting rainwater drained to the rainwater collection system by the plant interception system according to a preset path through the rainwater collection system;

step S22: purifying suspended pollutants in rainwater collected by the rainwater collection system through functional water purification plants in the plant purification system;

step S23: the rainwater collected by the rainwater collection system is restored and purified according to different levels through the water restoration system.

In this embodiment, the rainwater collection system may include a rainwater collection device, through which rainwater drained from the plant interception system to the rainwater collection system according to a preset path may be collected, the rainwater collection device may include a grass planting trench and an overflow well, the grass planting trench may include an anti-seepage shell paved with a grass skin layer, a matrix layer, a protective layer, a quartz sand layer, a volcanic rock layer, and the like, and a water seepage guide pipe is disposed at a lower portion of the volcanic rock layer, and may penetrate into a cavity of the overflow well through a water inlet of the overflow well; the plant purification system can comprise functional water purification plants, the functional water purification plants can be a flooding-resistant water purification landscape plant system, the flooding-resistant water purification landscape plant system can comprise a plurality of (such as 20) water purification landscape plants which are planted in a collected rainwater water body and screened out through a flooding stress test, a water and soil retention capacity test and the like, the plant purification system and the functional water purification plants in the plant interception system can form a water purification landscape plant system, and the plants in different systems can act synergistically. In the embodiment, suspended pollutants in the water body can be effectively reduced through the functional water purification plants in the plant purification system; in addition, due to the fact that pollutants, pollution degrees and treatment technologies in the water bodies at different levels are different, the water body restoration system can restore and purify the rainwater collected by the rainwater collection system according to different water body levels.

Specifically, the water body remediation system may include: ecological chinampa system, little biological remediation system and sediment normal position remediation system. In this embodiment, the ecological floating island system can be constructed by screening floating island plants, floating island plant planting materials and film-forming materials, and investigating the impact resistance of the floating island materials and the reinforcing effect of microbial agents. The constructed ecological floating island system can effectively improve the removal rate of total nitrogen and total phosphorus, and compared with the traditional floating island, the pollutant removal rate is reduced by a smaller range along with the change of temperature. And when nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater are removed through the ecological floating island system, the ecological floating island system has better stability and treatment efficiency.

The microorganism restoring system restores and activates the purification function of microorganisms in the whole water body by compensating and strengthening the deficiency condition of the self-purification function of the water body, and restores and purifies the collected rainwater by the restored and activated microorganisms, specifically, the microorganism restoring system restores the ecological self-purification capacity of the water body by a microorganism bacterium agent to accelerate the degradation of pollutants in the water body, wherein the microorganism bacterium agent can be prepared from a single strain or a beneficial microorganism bacterium agent which is prepared from a compound microorganism bacterium group and can degrade or mineralize target pollutants. The embodiment adopts the aeration ozone, the addition of the high-efficiency microbial agent and the biological promoting liquid, the planting of aquatic plants and the like to construct the combined bioremediation agent, and can promote the remediation effect of special microorganisms. Specifically, a nano aeration coupling microorganism technology can be adopted to remove harmful gases, increase the dissolved oxygen of water and activate dormant microorganisms. The nano aeration coupling microorganism technology is based on the premise of intercepting the sewage collecting pipe, and blocks the continuous influence of a pollution source on a water body. Then carrying out bottom harmful gas out of the water surface by adopting bottom oxygenation, water flow rotation and up-down convection modes to increase dissolved oxygen in the water body; and activating the dormant microorganisms by using a microorganism culture device to ensure the activity and the dosage of the microorganisms, decomposing and converting pollutants in water into substances and energy required by the growth of the microorganisms through the metabolic activity of the microorganisms, solving the problem of water quality fundamentally and recovering the self-purification capacity of the water body. Wherein, different microbial agent formulas can be selected according to different pollution sources and pollution degrees in the microbial culture device, and the microbial culture device can be widely applied to the treatment of landscape water bodies, river water bodies, municipal sewage, industrial wastewater, domestic sewage and the like.

In addition, the bottom sediment in-situ remediation system is used for remediating and purifying the bottom water body of the collected rainwater through in-situ chemical treatment and in-situ bioremediation under in-situ masking. Specifically, the substrate sludge in-situ remediation technology can be used for treating pollutants in the substrate sludge, wherein the substrate sludge in-situ remediation technology refers to a technology for in-situ pollutant treatment without dredging, and specifically can be used for carrying out in-situ chemical treatment and in-situ bioremediation under in-situ masking, so as to achieve the purpose of restoring and purifying the bottom water body of the collected rainwater.

Referring to fig. 8, fig. 8 is a flow chart of a fourth embodiment of the rainwater pollution reduction treatment method according to the present invention, and the fourth embodiment of the rainwater pollution reduction treatment method according to the present invention is proposed based on the above first embodiment. The water body restoration system comprises an ecological floating island system, a microorganism restoration system and a sediment in-situ restoration system, and the step 30 comprises the following steps:

step 31: removing nitrogen and phosphorus nutrients and organic pollutants in the upper water body of the collected rainwater through an ecological floating island system;

step 32: restoring and activating the purification function of microorganisms in the whole water body through a microorganism restoration system, and restoring and purifying the collected rainwater through the restored and activated microorganisms;

step 33: and repairing and purifying the bottom water body of the collected rainwater through in-situ chemical treatment and in-situ bioremediation under in-situ masking by a bottom mud in-situ repairing system.

In this embodiment, the plant monitoring system is configured to monitor growth states of different plants in the plant interception system and the collection and purification system, and feed back the monitored growth state data to the intelligent management system; the water flow monitoring system is used for monitoring the water runoff when rainwater flows through the plant interception system and the collection and purification system and feeding back the monitored water runoff data to the intelligent management system; the water quality monitoring system is used for monitoring the water quality conditions of rainwater in the plant interception system and the collection and purification system and feeding back the monitored water quality condition data to the intelligent management system; and the intelligent management system is used for receiving monitoring data fed back by the plant monitoring system, the water flow monitoring system and the water quality monitoring system and remotely managing the sewage treatment processes of the plant intercepting system and the collecting and purifying system according to the received monitoring data.

Specifically, the intelligent monitoring system can actively sense various monitoring indexes such as water flow conditions (such as runoff in different treatment links), water quality conditions (such as pollution sources in rainwater, pollution degree and pollutant component proportion) and plant growth conditions (such as soil dryness and humidity and plant water demand conditions) of corresponding monitoring systems. The intelligent response can be made according to the monitoring results fed back by each monitoring system, and the plant interception system and the collection and purification system are controlled to perform corresponding treatment. The intelligent monitoring system can utilize laser radar (LiDAR) platforms built by various platforms such as unmanned aerial vehicles, automobiles and the like to carry out three-dimensional scanning on the terrain and ground objects of a city so as to construct a high-precision three-dimensional city model, and is used for accurate simulation of a rainwater collection and purification process, a water catchment process and a drainage process in a rainwater pollution reduction treatment system and accurate prediction of a runoff diffusion range, a flow path and a ponding area; and then analyzing the monitored video through a system integration platform of the intelligent monitoring system to analyze the monitoring result fed back by each monitoring system. The system integration platform is developed based on a cloud computing platform, can realize department data integration and sharing, and has a big data analysis function, a preset early warning information issuing function and a remote intelligent management function.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a rainwater subtracts dirty processing system, its characterized in that, rainwater subtracts dirty processing system includes plant interception system, collects clean system and intelligent monitoring system:

and the intelligent monitoring system is used for monitoring the growth condition, the water flow condition and the water quality condition of the plants in the plant interception system and the collection and purification system in real time, and managing the rainwater treatment processes of the plant interception system, the collection and purification system and the flow distribution and recovery system according to monitoring results.

2. The rainwater abatement treatment system of claim 1, wherein the plant arresting system comprises:

3. The rainwater abatement treatment system of claim 1, wherein the collection purification system comprises:

the plant purification system comprises a functional water purification plant, wherein the functional water purification plant is used for purifying suspended pollutants in rainwater collected by the rainwater collection system;

4. The rainwater abatement treatment system of claim 3, wherein the water remediation system comprises:

5. The rainwater pollution abatement treatment system of claim 1, wherein the intelligent monitoring system comprises:

6. A rainwater pollution reduction treatment method is applied to a rainwater pollution reduction treatment system, the rainwater pollution reduction treatment system comprises a plant interception system, a collection purification system and an intelligent monitoring system, and the rainwater pollution reduction treatment method is characterized by comprising the following steps:

the intelligent monitoring system is used for monitoring the growth condition, the water flow condition and the water quality condition of plants in the plant interception system and the collection and purification system in real time, and managing the rainwater treatment processes of the plant interception system, the collection and purification system and the flow distribution and recovery system according to monitoring results.

7. The rainwater pollution-reduction treatment method according to claim 6, wherein the plant intercepting system comprises a rainwater separation system and a water purification plant intercepting system, the water purification plant intercepting system comprises a water purification plant laid according to the preset path and a filtering and adsorbing substrate for culturing the water purification plant, the step of guiding rainwater to the collecting and purifying system according to the preset path through the plant intercepting system and absorbing and decomposing pollutants in the rainwater in the drainage process comprises the following steps:

8. The rainwater pollution-reduction treatment method according to claim 6, wherein the collection and purification system comprises a rainwater collection system, a water body restoration system and a plant purification system, and the step of collecting rainwater drained by the plant interception system according to a preset path through the collection and purification system and restoring and purifying the collected rainwater comprises the following steps:

9. The rainwater pollution-reduction treatment method according to claim 8, wherein the water body remediation system comprises an ecological floating island system, a microorganism remediation system and a sediment in-situ remediation system, and the step of remediating and purifying the water bodies at different levels in the rainwater collected by the rainwater collection system through the water body remediation system comprises:

10. The rainwater pollution-reduction treatment method according to claim 6, wherein the intelligent monitoring system comprises a plant monitoring system, a water flow monitoring system, a water quality monitoring system and an intelligent management system, the intelligent monitoring system is used for monitoring the growth condition, the water flow condition and the water quality condition of plants in the plant intercepting system and the collecting and purifying system in real time, and the step of managing the pollution-reduction treatment process of the plant intercepting system and the collecting and purifying system according to the monitoring result comprises the following steps: