CN111809701A - Unpowered first rain scrubbing optical drive irrigation system of city rainwater garden - Google Patents
Unpowered first rain scrubbing optical drive irrigation system of city rainwater garden Download PDFInfo
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- CN111809701A CN111809701A CN202010609273.1A CN202010609273A CN111809701A CN 111809701 A CN111809701 A CN 111809701A CN 202010609273 A CN202010609273 A CN 202010609273A CN 111809701 A CN111809701 A CN 111809701A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
- E03F1/003—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells via underground elongated vaulted elements
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
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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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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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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- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Public Health (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Soil Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the technical field of sponge cities, and particularly relates to an unpowered primary rain decontamination CD-ROM irrigation system for an urban rainwater garden. According to the invention, a plurality of treatment systems are integrated into a large system, and a light-driven rainwater irrigation system is integrated into the system, so that not only are water resources fully utilized, but also the sponge effect of rainwater is exerted under the drought condition, and the resources can be saved.
Description
Technical Field
The invention relates to the technical field of sponge cities, in particular to an unpowered initial rain decontamination CD-ROM irrigation system for an urban rainwater garden.
Background
In recent years, China vigorously pushes the construction of sponge cities, and the problem of urban waterlogging caused by rainy seasons is greatly relieved. In the related spongization modification technology, except for modifying the urban rainwater pipe network, the rainwater garden is adopted, so that the problem of rainwater collection in small areas such as communities and parks can be effectively solved, the purpose of rainwater recycling can be realized, and the method is one of the commonly used spongization modification means. In the spongy transformation technology of the city, the probability of urban waterlogging is reduced, and the reuse rate of rainwater is improved. However, the traditional rainwater garden in China has the following defects: the problem of urban gutter inlet blockage is not improved. Secondly, a large amount of purification materials are consumed when a large amount of organic substances containing impurities in the rainwater are removed. And the rainwater recycling degree is low. Fourthly, a large amount of kinetic energy is consumed in the rainwater utilization system. Fifthly, the recycling of resources such as silt is lacked.
Through retrieval and discovery, application patent No. 201920719512.1 proposes a rainwater on-site storage and purification system and a rainwater garden. The invention comprises a fill layer, a sand filling layer, a water seepage well and a sand well. The rainwater is primarily filtered by the rainwater garden, then is laterally supplied by the water seepage well and enters the aquifer for storage, common pollutants in the rainwater are adsorbed and degraded by the sand well, and the rainwater is stored in the aquifer safely after being ecologically treated and is recycled for life, production and agriculture.
In addition, patent No. 201820803682.3 discloses a rainwater garden with circulation purification, which comprises a plurality of garden bodies, a water storage tank and a fountain device, wherein rainwater is collected by the water storage module and the water storage tank of the garden bodies by using percolation and purification effects of the garden bodies, and then water in the water storage module or the water storage tank is sprayed out of the water surface by the fountain device and falls into the garden bodies, so that pollutants in rainwater can be sufficiently removed by circulation percolation and purification. However, in this rain garden, the rain fountain device consumes a large amount of kinetic energy, so that the garden becomes expensive.
Also in application No. 201920654697.2, a rain garden for public greenery is provided. The garden comprises a green land, a water storage tank arranged outside the green land and auxiliary sprinkling irrigation devices arranged on two sides of the green land. The utility model discloses a device can be collected the rainwater at the implementation in-process, has the effect that the watering is convenient, use manpower sparingly. In the view of the whole process of the invention, the treatment is not carried out on the organic substances containing impurities in the rainwater. These organic substances penetrate into the soil, causing problems such as soil contamination.
Disclosure of Invention
The invention provides a novel rainwater garden to overcome the defects of the traditional rainwater garden. In order to solve the problems, the invention adopts the technical scheme that:
the utility model provides an unpowered first rain scrubbing optical drive irrigation system in city rainwater garden, includes ground soil horizon, rainwater temporary storage district, scrubbing district, silt settling zone, water storage area, plant the vegetation on the ground soil horizon, this vegetation department is equipped with automatic spray system, be equipped with rainwater pipeline between rainwater temporary storage district and the ground soil horizon, be equipped with pure water pipeline on the water storage area, the last water pump that has of pure water pipeline, pure water pipeline intercommunication in automatic spray system, the built-in scrubbing layer in scrubbing district is in scrubbing layer top unfiltered area's scrubbing district part respectively with rainwater temporary storage district and silt settling zone intercommunication, be in scrubbing layer below filtered area's scrubbing district part and water storage area intercommunication.
As a further preferable scheme, a rainwater grate is arranged between the rainwater pipeline and the ground soil layer; the scrubbing layer is covered with the water distribution board.
As a further preferable scheme, a drainage pipeline is arranged on the temporary rainwater storage area, a tap water introducing system and an automatic rainwater guiding and draining system are arranged on the water storage area, and a sludge discharge pipeline is arranged at the bottom of the sediment settling area.
As a further preferable scheme, a tap water valve is arranged in the tap water introducing system, a sludge discharge valve is arranged in the sludge discharge pipeline, a sludge inlet valve is arranged in a pipeline of the decontamination layer communicated with the sediment settling area, and a flow regulator is arranged in a pipeline of the decontamination area communicated with the temporary rainwater storage area.
As a further preferable scheme, a soil humidity sensor is arranged on the ground soil layer, a pressure sensor is arranged on the water distribution plate, and a water quantity monitoring sensor is arranged on the inner wall of the water storage area.
As a further preferable scheme, a light driving system is arranged on the ground soil layer, the light driving system comprises a solar panel, and the light driving system is respectively connected with the mud inlet valve, the mud discharge valve, the flow regulator, the soil humidity sensor, the pressure sensor, the water quantity monitoring sensor and the water pump.
As a further preferable scheme, a back washing pipeline is arranged between the rainwater temporary storage area and the pure water pipeline.
As a further preferable scheme, the decontamination layer sequentially comprises a gravel layer, a ceramsite layer, a multi-stage composite Fe-C ceramsite decontamination layer and a pyrite layer from top to bottom.
As a further preferable scheme, the multistage composite Fe-C ceramsite decontamination layer is formed by mixing scrap iron, copper, biomass and laterite, wherein the mass ratio of the scrap iron to the copper to the biomass to the laterite is (3-5): (1-2): (1-2): (1-2), the preparation method of the multistage composite Fe-C ceramsite decontamination layer comprises the following steps: weighing iron chips, copper, biomass and laterite, uniformly mixing, adding filler sodium bentonite and pore-forming agent sodium bicarbonate, adding water, kneading to obtain a semi-finished product with the diameter of 10-12mm, vacuum-drying at 60-150 ℃ for 20-50min, introducing nitrogen to keep a vacuum state, roasting at 600-11000 ℃ for 1-3h, and cooling in a drying oven for 2-4 h; the mass of the sodium bentonite is 15-30% of the total mass of the multilevel composite Fe-C ceramsite decontamination layer, and the mass of the pore-forming agent sodium bicarbonate is 0.5-2% of the total mass.
Compared with the prior art, the invention has the beneficial effects that:
first, the rain water collection system of the present invention has a significant impact on peak clipping. The novel urban rainwater garden unpowered early rain decontamination CD-ROM irrigation system can reduce the peak value of water flow, and under the same service area, the novel rainwater garden can increase rainwater interception amount, has larger water passing area, and is greatly helpful for annual runoff reduction and annual non-point source pollution reduction.
Secondly, the invention adopts four layers of decontamination layers, and the traditional rainwater garden adopts the self-purification function of soil, so that the pollutant removal effect is better. The removal rate of organic matters, total nitrogen and total phosphorus is over 60 percent.
Thirdly, the light-driven rainwater irrigation system is adopted, and the device plays a role in peak clipping in rainy seasons; in dry seasons, solar energy is used for providing power for the water feeding pump, so that greening irrigation is realized, rainwater is recycled, and the effects of energy conservation and emission reduction are achieved.
Fourthly, the automatic system comprises an automatic spraying system, an automatic mud discharging system, a back washing system, an automatic rainwater guiding and discharging system and the like, and the automation degree of the novel rainwater garden is improved by means of a water quantity detection system, a pressure sensor, a soil humidity sensor and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. the system comprises a ground soil layer, 2, vegetation, 3a, a rainwater grate, 3b, a drainage pipeline, 4a, a rainwater pipeline, 5, a temporary rainwater storage area, 6, a flow regulator, 7, a water distribution plate, 8, a decontamination layer, 8a, a gravel layer, 8b, a ceramsite layer, 8C, a multi-stage composite Fe-C ceramsite decontamination layer, 8d, a pyrite layer, 9a, a soil humidity sensor, 9b, a pressure sensor, 9C, a water quantity monitoring sensor, 10a, a mud inlet valve, 10b, a mud discharge valve, 10C, a tap water valve, 11a, an automatic rainwater guiding and discharging system, 11b, a tap water introducing system, 11C, a purified water pipeline, 11d, a backwashing pipeline, 11e, an automatic spraying system, 12a, a water pump, 13, a light driving system, 14, a silt settling area, 15 and a water storage area.
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.
As shown in FIG. 1, the structure of the novel rainwater garden provided by the invention comprises a rainwater collection system, a biochemical treatment system, a water storage system, a sludge discharge and sand guide system and a light-driven rainwater irrigation system, wherein the rainwater collection system comprises a hollowed rainwater grate 3a, a rainwater pipeline 3b and a water quantity regulation system, the water quantity regulation system comprises a temporary rainwater storage area 5, a flow regulator 6, the water quantity regulation system is connected with the rainwater grate 3a and the biochemical treatment system, the biochemical treatment system comprises a water distribution plate 7, a dirt removal layer 8 and a backwashing system, the backwashing system comprises a pressure sensor 9b, the water storage system comprises a water storage area 15, a water quantity monitoring sensor 9c, an automatic rainwater discharge and sand guide system 11a and a tap water introduction system 11b, the sludge discharge and sand guide system comprises a silt settling area 14 and a sludge discharge pipeline, the silt settling area is positioned on one side of the water storage area 15 connected with the biochemical treatment system, the light-driven rainwater irrigation system comprises a light-driven system 13 and an automatic spraying system 11e, wherein the automatic spraying system comprises a soil humidity sensor 9a and a water pump 12 a.
The area of the rain inlet is not less than 1m2The large-area multi-side water collection is adopted, the hollowed-out rainwater grate 3a is inclined at an angle of 45 degrees, rainwater can be fully collected, impurities such as garbage, fallen leaves and the like can be intercepted, the difficulty in cleaning the rainwater garden garbage can be reduced, and the problem of water accumulation caused by blockage can be solved; rainwater enters the device through the rainwater collecting port, flows through the water quantity adjusting system and the inclined pipeline and then enters the biochemical treatment system. The rainwater passes through a gravel layer, a ceramsite layer, a multi-stage composite Fe-C ceramsite decontamination layer (the microbial action on the surface of the ceramsite and the micro-electrolysis action formed by Fe-C) and a pyrite layer to remove granular impurities, organic matters, nitrogen, phosphorus and other pollutants, the purified rainwater is stored in a water storage system, and the device has the function of peak clipping in rainy seasons; in dry seasons, the automatic spraying system starts to work, solar energy is used for providing power for the water pump, greening irrigation is achieved, and rainwater is recycled. The rainwater drainage guide system and the tap water supply system are added into the water storage area, and when the water amount of the water storage area is large, rainwater can flow into an urban pipe network through the rainwater drainage guide system, so that quick drainage guide is realized, and the blockage of the device is prevented. The back washing system comprises a pressure sensor and a water pump, and the effect of the automatic flushing device is achieved. When the plants need to be irrigated and the water storage area is insufficient in water quantity, tap water is supplied to the water storage area through the tap water supply system for irrigation. The sediment settling zone is positioned on one side of the water storage zone and is in a sharp-mouth funnel shape, so that sediment contained in rainwater can be collected conveniently, and the stored sediment can be cleaned regularly.
The temporary rainwater storage area 5 is constructed by adopting a high-density polyethylene material of an anti-seepage layer, and the volume of the temporary rainwater storage area is set to be 15m3。
The biochemical treatment system adopts four decontamination layers 8, namely a gravel layer 8a, a ceramsite layer 8b, a multi-stage composite Fe-C ceramsite decontamination layer 8C and a pyrite layer 8d in sequence, and comprises the following components in percentage by weight of 2: 3: 3: 2 volume ratio. The preparation method of the multistage composite Fe-C ceramsite decontamination layer 8C comprises the following steps: weighing iron chips, copper, biomass and laterite, and mixing the raw materials in a ratio of 3: 1: 1: 1, adding filler sodium bentonite and pore-forming agent sodium bicarbonate, adding water, kneading into a semi-finished product with the diameter of 10mm, vacuum-drying at 120 ℃ for 30min, introducing nitrogen to keep the vacuum state, roasting at 800 ℃ for 1.5h, and cooling in a drying oven for 2 h; the mass of the sodium bentonite is 15% of the total mass of the multilevel composite Fe-C ceramsite decontamination layer 8C, and the mass of the pore-forming agent sodium bicarbonate is 1% of the total mass.
The water distribution plate 7 is pressed on the decontamination layer 8, and rainwater can uniformly enter the decontamination layer 8 through compression and has the function of compacting the filler.
The decontamination area is connected with the water storage area 15 through a pipeline and is connected with the sediment sedimentation area 14 through a sediment inlet valve 10 a.
The drain pipe 3b drains excessive rainwater when the amount of rainwater is excessive, thereby improving the working efficiency of the biochemical treatment system 8.
The water quantity regulating system comprises a rainwater temporary storage area 5 and a flow regulator 6, and when the flow is more than or equal to 50mm, the rainwater supplies groundwater through the pipeline.
The impoundment area 15 is constructed of concrete material with an impermeable layer and has a volume of 100 cubic meters.
The water quantity monitoring sensor comprises a water quantity monitoring sensor 9c, and the automatic spraying system comprises a soil humidity sensor 9 a. The numerical value of the water quantity monitoring sensor 9c is less than 40%, and when the numerical value of the soil humidity sensor 9a is less than 50%, the tap water introducing system 11b and the automatic spraying system are started to work, and when the soil humidity reaches 70%, the tap water introducing system 11b and the automatic spraying system stop working. When the numerical value of the soil humidity sensor 9a is less than 50%, the automatic spraying system is started, and when the numerical value of the water quantity monitoring sensor 9c is less than 5% or the soil humidity reaches 70%, the automatic spraying system stops working.
The water storage area 15 is connected with the water pump 12a through the automatic spraying system 11 e; the rainwater temporary storage area 5 is connected with a water pump 12a through a pipeline 11d and is used for a rainwater sludge and sand discharging system; the pipeline 11d is communicated with the ground through an automatic spraying system 11e and is used for irrigation of purified rainwater.
A pressure sensor 9b is arranged on the water distribution plate 7 and used for reflecting the pressure of the sediment in the rainwater on the water distribution plate 7; a soil moisture sensor 9a is mounted on the soil 1. When the pressure value of the pressure sensor 9b reaches 1.5MPa, the water pump 12a is opened, the valve 10b is opened, and the recoilThe washing strength of the washing water is 20 m3/m2H, discharging the deposited silt.
The water storage area 15 supplies excessive purified rainwater to the municipal pipe network through the rainwater drainage system 11 a.
The solar storage plate 13 has an inclination angle of 45 degrees, which is beneficial to absorbing solar energy and providing required energy for the automatic spraying system 11e and the water pump 12 a.
(1) The decontamination capability of the invention is as follows: in the system, the inclined pipeline and the biological treatment system have good effects of removing pollutants in water, the Chemical Oxygen Demand (COD) removal rate of the effluent can reach 62%, the Total Phosphorus (TP) removal rate is 68%, the Total Nitrogen (TN) removal rate reaches 66%, the pollutants in rainwater can be effectively removed, and meanwhile, the sediment in the water body is filtered, so that the water body is favorably recycled.
(2) The invention saves water resources: the collected rainwater can be used for irrigation of urban greening or spraying of roads, and consumption of water resources in aspects of urban greening and the like is saved to a great extent.
(3) The invention saves energy consumption: the system integrates a solar energy technology, fully utilizes light energy to provide power for various automatic control devices, saves energy consumption and protects the environment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides an unpowered first rain scrubbing optical drive irrigation system in city rainwater garden which characterized in that: comprises a ground soil layer (1), a temporary rainwater storage area (5), a decontamination area, a sediment sedimentation area (14) and a water storage area (15), wherein vegetation (2) is planted on the ground soil layer (1), an automatic spraying system (11 e) is arranged at the vegetation (2), a rainwater pipeline (4 a) is arranged between the temporary rainwater storage area (5) and the ground soil layer (1), a purified water pipeline (11 c) is arranged on the water storage area (15), a water pump (12 a) is arranged on the purified water pipeline (11 c), the purified water pipeline (11 c) is communicated with an automatic spraying system (11 e), the device is characterized in that a decontamination layer (8) is arranged in the decontamination area, the part of the decontamination area, which is positioned in an unfiltered area above the decontamination layer (8), is communicated with a rainwater temporary storage area (5) and a silt settling area (14) respectively, and the part of the decontamination area, which is positioned in a filtered area below the decontamination layer (8), is communicated with a water storage area (15).
2. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 1, wherein: a rainwater grate (3 a) is arranged between the rainwater pipeline (4 a) and the ground soil layer (1); the decontamination layer (8) is covered with a water distribution plate (7).
3. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 2, wherein: be equipped with drainage pipe (3 b) on rainwater temporary storage district (5), be equipped with running water introducing system (11 b) and automatic drainage system (11 a) of leading of rainwater on retaining area (15), silt settling zone (14) bottom is equipped with row mud pipeline.
4. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 3, wherein: tap water introducing system (11 b) embeds tap water valve (10 c), built-in mud valve (10 b) of row of mud pipeline, mud valve (10 a) are advanced to the pipeline built-in of scrubbing layer (8) and silt settling zone (14) intercommunication, built-in flow regulator (6) of pipeline of scrubbing zone and rainwater temporary storage district (5) intercommunication.
5. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 4, wherein: the water distribution device is characterized in that a soil humidity sensor (9 a) is arranged on the ground soil layer (1), a pressure sensor (9 b) is arranged on the water distribution plate (7), and a water quantity monitoring sensor (9 c) is arranged on the inner wall of the water storage area (15).
6. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 5, wherein: be equipped with light actuating system (13) on ground soil layer (1), light actuating system (13) include solar panel, and light actuating system (13) are connected respectively and are advanced mud valve (10 a), arrange mud valve (10 b), flow regulator (6), soil moisture sensor (9 a), pressure sensor (9 b), water yield monitoring sensor (9 c), water pump (12 a).
7. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 6, wherein: a back washing pipeline (11 d) is arranged between the temporary rainwater storage area (5) and the pure water pipeline (11 c).
8. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 7, wherein: the decontamination layer (8) is sequentially provided with a gravel layer (8 a), a ceramsite layer (8 b), a multi-stage composite Fe-C ceramsite decontamination layer (8C) and a pyrite layer (8 d) from top to bottom.
9. The municipal rainwater garden unpowered initial rainwater decontamination optical drive irrigation system according to claim 8, wherein: the multistage composite Fe-C ceramsite decontamination layer (8C) is formed by mixing scrap iron, copper, biomass and laterite, wherein the mass ratio of the scrap iron to the copper to the biomass to the laterite is (3-5): (1-2): (1-2): (1-2), the preparation method of the multistage composite Fe-C ceramsite decontamination layer (8C) comprises the following steps: weighing iron chips, copper, biomass and laterite, uniformly mixing, adding filler sodium bentonite and pore-forming agent sodium bicarbonate, adding water, kneading to obtain a semi-finished product with the diameter of 10-12mm, vacuum-drying at 60-150 ℃ for 20-50min, introducing nitrogen to keep a vacuum state, roasting at 600-1100 ℃ for 1-3h, and cooling in a drying oven for 2-4 h; the mass of the sodium bentonite is 15-30% of the total mass of the multi-stage composite Fe-C ceramsite decontamination layer (8C), and the mass of the pore-forming agent sodium bicarbonate is 0.5-2% of the total mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609273.1A CN111809701A (en) | 2020-06-30 | 2020-06-30 | Unpowered first rain scrubbing optical drive irrigation system of city rainwater garden |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609273.1A CN111809701A (en) | 2020-06-30 | 2020-06-30 | Unpowered first rain scrubbing optical drive irrigation system of city rainwater garden |
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| CN111809701A true CN111809701A (en) | 2020-10-23 |
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| CN202010609273.1A Pending CN111809701A (en) | 2020-06-30 | 2020-06-30 | Unpowered first rain scrubbing optical drive irrigation system of city rainwater garden |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112616622A (en) * | 2020-12-08 | 2021-04-09 | 东莞市园林绿化工程有限公司 | Environment-friendly automatic water storage irrigation system and irrigation method |
| CN115581157A (en) * | 2022-10-28 | 2023-01-10 | 南京大学建筑规划设计研究院有限公司 | Sponge flower bed integrating rainwater purification, regulation and storage and recycling and use method |
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