CN210507749U

CN210507749U - Urban landscape rainwater collecting, purifying and recycling system

Info

Publication number: CN210507749U
Application number: CN201921311287.4U
Authority: CN
Inventors: 顾亚兰; 王丽; 张志南; 汤阳泽; 庄凯
Original assignee: Jinpu Landscape Co ltd
Current assignee: Jinpu Landscape Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-12
Anticipated expiration: 2029-08-14

Abstract

The utility model belongs to the technical field of environmental engineering, concretely relates to urban landscape rainwater is collected and is purified recycling system. The rainwater recycling device comprises a rainwater collecting pool, a rainwater purifying pool and a rainwater recycling pool which are sequentially arranged, wherein the rainwater collecting pool and the rainwater purifying pool and the rainwater recycling pool are respectively connected through drain pipes, and water pumps are installed on the drain pipes; concrete anti-seepage cushion layers are arranged at the bottoms of the rainwater collecting tank, the rainwater purifying tank and the rainwater recycling tank; the upper part of the rainwater collecting pool is provided with a sewage intercepting device and an overflow pipe; the rainwater purification tank is provided with a rainwater purification module, and a yellow sand layer is backfilled at the upper part of the rainwater purification tank. The system can strengthen the rainwater storage, infiltration and purification effects on the urban landscape, realize the on-site reduction and dispersion treatment of storm runoff, effectively intercept impurities in rainwater, reasonably recycle rainwater resources, build a conservation-oriented city and enable the urban landscape to play greater composite functional value and social benefit.

Description

Urban landscape rainwater collecting, purifying and recycling system

Technical Field

The utility model belongs to the technical field of environmental engineering, concretely relates to urban landscape rainwater is collected and is purified recycling system.

Background

The urbanization construction makes closely knit underlying surface increase, has reduced the chance of rainfall runoff infiltration and the ability that soil absorbed moisture, because closely knit underlying surface is more smooth than the nature earth's surface many, and the earth's surface is to the stagnant ability of holding of rainwater weaken, and these combined factors lead to urban runoff to obviously increase, and the rainwater process demonstrates the violent trend, surpasss drainage infrastructure's load. The urban construction directly brings pollution of the rainwater runoff, a large amount of pollutants are carried in the rainwater runoff caused by garbage, motor vehicle emissions, dust on the exposed ground surface, deposited substances of a drainage network pipe, agricultural chemical agents and the like, the rainwater runoff on building roofs and urban road in most cities of China is seriously polluted, and the pollution degree of the rainwater at the early stage of rainfall even exceeds that of urban sewage. Meanwhile, with the rapid growth of urban population and the continuous development of various industries, many cities exploit underground water in excess, so that the underground water level is continuously reduced, and water resources are seriously exhausted. The situation of water resource shortage in cities in China is getting more severe, 400 cities in China are influenced by water resource shortage, and the government has taken water resource shortage as one of important obstacles influencing city development.

Rapid urbanization processes and unreasonable urban development bring a series of complex hydrological problems, including frequent flood disasters, severe runoff pollution of rainwater, increasingly exhausted water resources and the like, which seriously affect the urban ecological environment. In the face of severe environmental situation, the method of rainwater management by simply depending on infrastructure must be transformed, and a sustainable development mode which is more flexible, has more ecological and social functional benefits and is more beneficial to resource utilization of rainfall flood is required to be sought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a city view rainwater is collected and is purified recycling system reinforces the rainwater storage infiltration purification performance to city view, realizes rainstorm runoff and cuts down on the spot and decentralized processing, effectively intercepts impurity in the rainwater, the rainwater of collection is through rainwater module purification treatment, the pollutant of effective processing rainwater, the purification water is used for the afforestation to water uses such as sprinkling, road washing, reasonable retrieval and utilization rainwater resource, construction saving type city makes the bigger complex function of city view performance worth and social.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: the urban landscape rainwater collecting, purifying and recycling system comprises a rainwater collecting pool, a rainwater purifying pool and a rainwater recycling pool which are sequentially arranged, wherein the rainwater collecting pool and the rainwater purifying pool as well as the rainwater purifying pool and the rainwater recycling pool are respectively connected through drain pipes, and water pumps are installed on the drain pipes;

concrete anti-seepage cushion layers are arranged at the bottoms of the rainwater collecting tank, the rainwater purifying tank and the rainwater recycling tank;

the upper part of the rainwater collecting pool is provided with a sewage intercepting device and an overflow pipe;

the rainwater purification tank is provided with a rainwater purification module, and a yellow sand layer is backfilled at the upper part of the rainwater purification tank.

As a preferred technical scheme, the concrete anti-seepage cushion layer sequentially comprises geotextile, a PE anti-seepage film, a fine stone concrete layer, a plain soil tamping layer and a concrete cushion layer from top to bottom.

As a preferred technical scheme, the rainwater purification module is built by pervious concrete bricks.

As a preferred technical scheme, an activated carbon layer, a zeolite layer and a ceramsite layer are arranged in the pervious concrete brick.

As an optimal technical scheme, a slope with an inclination angle of 10-20 degrees is arranged on the surface layer of the rainwater collecting pool, and the sewage intercepting device is arranged at the collecting opening.

As a preferred technical scheme, the sewage interception device is provided with a pipe orifice for adding the microbial agent.

As an optimized technical scheme, plant landscapes are arranged on two sides of the rainwater collection pool, and a plant, a soil layer, a fine sand layer and a gravel layer are sequentially arranged on a planting layer of the plant landscape from top to bottom.

Preferably, the overflow pipe is disposed in an upper region of the fine sand layer.

Preferably, the overflow pipe is connected to a municipal pipe network system.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has at least: when the rainfall is large, the rainfall is saturated in the water body of each planting layer of the plant landscape to form rainwater runoff which is converged into the rainwater collecting tank along the inclined inlet, so that the ground runoff can be reduced, and the rain peak runoff can be reduced. Runoff can intercept partial silt and great impurity through intercepting dirty device, and the microorganism medicine can degrade the microorganism and enter modified matrix, promotes the formation of matrix granule surface composite biofilm, strengthens the activity of biofilm, improves the purifying power to the pollutant, constructs the microorganism-matrix system that has the pollutant and strengthens purifying effect. The rainwater collecting tank is internally provided with a sewage intercepting device, a part of water flows through the municipal pipe network system through the overflow pipe, and the rest water enters the rainwater purification tank through the water pump and the drain pipe. The rainwater is further treated by the activated carbon, the zeolite, the ceramsite and the like of the purification module, the activated carbon can adsorb pollutants and heavy metal ions, the zeolite has extremely strong ion adsorption capacity and is used for removing nitrogen in water bodies with obvious effect, and the purified water bodies are used for greening watering, road washing and the like. The utility model discloses can strengthen the rainwater storage to the urban landscape and ooze purification performance, realize the torrential rain runoff and cut down on the spot and decentralized processing, reasonable retrieval and utilization rainwater resource, construction saving type city makes the greater composite function value of urban landscape performance and social.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a rainwater collecting tank according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a pervious concrete brick in the embodiment of the present invention.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1, the urban landscape rainwater collection, purification and recycling system comprises a rainwater collection pool 100, a rainwater purification pool 200 and a rainwater recycling pool 300 which are sequentially arranged, wherein the rainwater collection pool 100 and the rainwater purification pool 200, and the rainwater purification pool 200 and the rainwater recycling pool 300 are respectively connected through a drain pipe 8, and a water pump 9 is installed on the drain pipe 8; the bottom parts of the rainwater collecting tank 100, the rainwater purifying tank 200 and the rainwater recycling tank 300 are all provided with concrete anti-seepage cushion layers; the concrete anti-seepage cushion layer sequentially comprises a geotextile 3, a PE anti-seepage film 4, a fine stone concrete layer 5, a plain soil tamping layer 6 and a concrete cushion layer 7 from top to bottom.

Referring to fig. 2, a sewage intercepting device 1 and an overflow pipe 2 are arranged at the upper part of the rainwater collecting pool 100, in this embodiment, a slope with an inclination angle of 10-20 ° is arranged on the surface layer of the rainwater collecting pool 100, and the sewage intercepting device 1 is arranged at a collecting port; the sewage interception device 1 is provided with a pipe orifice for adding microbial agents. The sewage interception device 1 can adopt structures such as a grid net, a filter screen and the like, and can intercept partial silt and larger impurities; plant landscape is arranged on two sides of the rainwater collection pool 100, and the planting layer of the plant landscape is sequentially a plant 12, a soil layer 13, a fine sand layer 14 and a gravel layer 15 from top to bottom. The overflow pipe 2 is arranged in the upper region of the fine sand layer 14. The overflow pipe 2 is connected to a municipal pipe network system.

Referring to fig. 1 and 3, the rainwater purification tank 200 is provided with a rainwater purification module 11, and a yellow sand layer 10 is backfilled at the upper part. The rainwater purification module 11 is built by pervious concrete bricks 19. An activated carbon layer 16, a zeolite layer 17 and a ceramsite layer 18 are arranged in the pervious concrete brick 19.

When the rainfall is large, the rainfall is formed after the water bodies of all the planting layers of the plant landscape are saturated, and then the runoff of the rainwater is formed and is converged into the rainwater collecting tank 100 along the inclined inlet, so that the runoff of the ground can be reduced, and the peak runoff of the rainwater can be reduced. Runoff can intercept partial silt and great impurity through intercepting dirty device 1, and the microorganism medicine can degrade the microorganism and enter modified matrix, promotes the formation of matrix granule surface composite biofilm, strengthens the activity of biofilm, improves the purification capacity to the pollutant, constructs the microorganism-matrix system that has the pollutant and strengthens purification effect. The rainwater in the rainwater collecting pool 100 is primarily treated by the sewage interception device 1, part of the water flows through the municipal pipe network system by the overflow pipe 2, and the rest of the water enters the rainwater purification pool 200 by the water drainage pipe 8 through the water pump 9. The water body is further treated by an active carbon layer 16, a zeolite layer 17, a ceramsite layer 18 and the like of the rainwater purification module 11, the active carbon can adsorb pollutants and heavy metal ions, the zeolite has extremely strong ion adsorption capacity and is used for removing nitrogen in the water body with obvious effect, and the purified water body is used for greening watering, road washing and the like.

The utility model discloses can strengthen the rainwater storage to the urban landscape and ooze purification performance, realize the torrential rain runoff and cut down on the spot and decentralized processing, reasonable retrieval and utilization rainwater resource, construction saving type city makes the greater composite function value of urban landscape performance and social.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. The urban landscape rainwater collection, purification and recycling system comprises a rainwater collection pool (100), a rainwater purification pool (200) and a rainwater recycling pool (300) which are sequentially arranged, wherein the rainwater collection pool (100) and the rainwater purification pool (200) are respectively connected through a drain pipe (8), and a water pump (9) is installed on the drain pipe (8); the method is characterized in that:

concrete anti-seepage cushion layers are arranged at the bottoms of the rainwater collecting tank (100), the rainwater purifying tank (200) and the rainwater recycling tank (300);

the upper part of the rainwater collecting pool (100) is provided with a sewage intercepting device (1) and an overflow pipe (2);

the rainwater purification tank (200) is provided with a rainwater purification module (11), and a yellow sand layer (10) is backfilled at the upper part.

2. The urban landscape rainwater collection, purification and recycling system of claim 1, which is characterized in that: the concrete anti-seepage cushion layer sequentially comprises a geotextile (3), a PE anti-seepage film (4), a fine stone concrete layer (5), a plain soil tamping layer (6) and a concrete cushion layer (7) from top to bottom.

3. The urban landscape rainwater collection, purification and recycling system according to claim 1, wherein the rainwater purification module (11) is built by pervious concrete bricks (19).

4. The urban landscape rainwater collection, purification and recycling system according to claim 3, wherein an activated carbon layer (16), a zeolite layer (17) and a ceramsite layer (18) are arranged in the pervious concrete brick (19).

5. The urban landscape rainwater collection, purification and recycling system according to claim 1, wherein the surface layer of the rainwater collection pool (100) is provided with a slope with an inclination angle of 10-20 degrees, and the collection port is provided with the sewage interception device (1).

6. The urban landscape rainwater collection, purification and recycling system according to claim 5, wherein the sewage interception device (1) is provided with a pipe orifice for adding a microbial agent.

7. The urban landscape rainwater collection, purification and recycling system according to claim 1, wherein the plant landscape is arranged on two sides of the rainwater collection pool (100), and the plant landscape planting layer comprises a plant (12), a soil layer (13), a fine sand layer (14) and a gravel layer (15) from top to bottom.

8. The urban landscape rainwater collection, purification and recycling system according to claim 7, wherein the overflow pipe (2) is arranged in the upper region of the fine sand layer (14).

9. The urban landscape rainwater collection, purification and recycling system according to claim 8, wherein the overflow pipe (2) is connected to a municipal pipe network system.