CN206089377U - A rainwater collection clean system for sponge city - Google Patents

Abstract

The utility model discloses a rainwater collection clean system for sponge city, this system includes the water -collection device by the pipeline intercommunication, abandon a class device, the water purification system with deposit the pond, the setting is connected with the delivery port of sponge city earth's surface infiltration system to water -collection device's water inlet, abandon the outlet pipe and municipal drainage pipe way intercommunication of class device, the water purification system is including leading to the rose box that the pipe intercommunication set up, first purifying box and second purifying box, the rose box is including setting up the filter layer in the box, biological rete and packing layer, be equipped with a coagulation device who loads the coagulant at the bottom of the first purifying box, be provided with an ozone generating device at the bottom of the second purifying box. This system specially is sponge urban design, and water -collection device and water purification with a system use, and the water purification effect is good, has very strong practicality and popularization nature.

Description

A rainwater collection and purification system for sponge cities

technical field

The utility model belongs to the technical field of rainwater collection and purification, in particular to a rainwater collection and purification system for sponge cities.

Background technique

The scarcity of water resources is a global ecological problem, and how to save water resources is a major problem faced by mankind. In the sponge city with the theme of water conservation and water purification, the collection and utilization of rainwater resources is particularly important. During the initial rainfall, the first 2mm-4mm of rainwater is generally seriously polluted, usually with paper scraps, feces, oil, leaves and other easy pollutants, so the initial rainwater needs to be discarded with a waste flow device, so that it is relatively clean after collection rainwater, and the purification of the rainwater behind.

Most of the rainwater collection and purification systems or devices in the prior art currently have the following problems:

(1) Existing devices or systems rarely have rainwater collection and purification systems specially designed for sponge cities, and most of them are house rainwater collection and purification devices, which have single functions and are not scalable.

(2) Existing devices or systems are often just simple filtration treatment, without deep purification, and the water purification effect is not good.

Utility model content

The purpose of this utility model is to provide a rainwater collection and purification system for sponge city in view of the deficiencies of the prior art, so as to solve the problems of poor water collection and purification system and water purification effect rarely designed for sponge city in the prior art question.

In order to achieve the above object, the technical scheme that the utility model takes is:

A rainwater collection and purification system for a sponge city, including a water collection device connected by pipelines, a waste flow device, a water purification system and a storage tank;

The water inlet of the water collection device is connected with the water outlet of the surface seepage system of the sponge city;

The outlet pipe of the waste flow device is connected with the municipal drainage pipe;

The water purification system includes a filter box, a first purification box and a second purification box connected by water pipes; the filter box includes a filter layer, a biofilm layer and a packing layer arranged in the box; a bottom of the first purification box is provided with a mixed Coagulation device for coagulant; an ozone generator is installed at the bottom of the second purification box.

Preferably, the filter layer has a pore size of 1-2 cm, and the biofilm layer has a pore size of 5-8 μm.

Preferably, the packing layer is physical filter packing, and the physical filter packing is sponge or activated carbon.

Preferably, the storage pool is a sponge city constructed wetland, a sponge city catchment pool or a sponge city artificial lake.

The rainwater collection and purification system used in the sponge city provided by the utility model has the following beneficial effects:

This system is designed according to the characteristics of the sponge city. The outlet of the sponge city seepage system is connected to the water inlet of the water collection device to collect rainwater, and under the action of the waste flow device, the dirty rainwater in the early stage is discarded. Combined with the water purification system, the collected rainwater is filtered through multiple filtrations and physical fillers to remove impurities in the rainwater and precipitate unfiltered impurities. Then the coagulant is used to remove the suspended solids and bacteria in the rainwater, and the ozone oxidation removes the organic impurities in the rainwater to prevent eutrophication.

The rainwater after deep purification can meet the use standard; the purified water is discharged into the sponge city water supply system, the sponge city artificial wetland, the sponge city catchment pool or the sponge city artificial lake for storage.

The whole system is specially set up for water collection and purification in sponge cities, and the water purification effect is good, which has strong practicability and promotion.

Description of drawings

Figure 1 is a structural block diagram of a rainwater collection and purification system for a sponge city.

Fig. 2 is a structural schematic diagram of a rainwater collection and purification system water purification system used in a sponge city.

Among them, 1. filter box; 2. first purification box; 3. second purification box; 4. filter layer; 5. biofilm layer; 6. packing layer; 7. coagulation device; 8. sewage pipe; 9. ozone Generating device; 10. Water outlet.

detailed description

Below in conjunction with accompanying drawing, the embodiment of the technical solution of the utility model is described in detail:

According to an embodiment of the present application, as shown in Figure 1, a rainwater collection and purification system for a sponge city of this solution includes a water collection device connected by pipelines, a waste flow device, a water purification system and a water storage tank.

The water inlet of the water collection device is connected to the water outlet of the surface infiltration system of the sponge city, and there are several water collection devices in the sponge city for collecting rainwater.

The waste flow device is used for the dirty rainwater in the early stage of waste flow, and is discharged into the municipal drainage pipe through its outlet pipe.

The storage tank is a storage tank such as a sponge city artificial wetland, a sponge city catchment pool or a sponge city artificial lake, which stores purified rainwater for use.

As shown in FIG. 2 , the water purification system includes a filter box 1 , a first purification box 2 and a second purification box 3 connected by water pipes.

The filter box 1 includes a filter layer 4, a biofilm layer 5 and a filler layer 6 arranged in the box. The filter layer has a pore size of 1-2 cm and is used to remove solid impurities in rainwater, such as leaves, dead wood and domestic garbage.

The pore size of the biofilm layer is 5-8 μm, and some bacteria in the rainwater are initially filtered out.

The packing layer 6 is a physical filter packing layer, and the physical filter packing layer is sponge or activated carbon, so that after the silt soil enters the filter box 1, it slowly passes through the packing layer under its own gravity, and then stands still for 1-2h, and the silt soil Wait for the water-insoluble solid impurity to just settle in filter box 1 bottom.

The bottom of the first purification box 2 is provided with a coagulation device 7 filled with a coagulant for absorbing and removing suspended solids and bacteria in the water, flocculating and sedimenting at the bottom of the box, and discharging through the sewage pipe 8.

The bottom of the second purification box 3 is provided with an ozone generator 9 for oxidizing and removing organic impurities in the water.

Specific process: The water inlet of the water collection device is connected with the water outlet of the sponge city seepage system to collect rainwater. Under the action of the flow discarding device, the rainwater in the early stage is discarded, and the relatively clean rainwater in the later stage enters the water purification system and is filtered and removed in the filter box 1. The insoluble solid impurities in the water absorb the pigment in the water, and the rainwater at this time has reached a certain degree of clarity.

The rainwater filtered by the filter box 1 enters the first purification box 2, and under the action of the coagulant in the coagulation device 7, the suspended solids in the sedimentation water are flocculated and discharged through the sewage pipe 8, and the water quality is now transparent.

The rainwater purified by the first purification box 2 finally enters the second purification box 3, and the ozone generated by the ozone generator 9 oxidizes and removes organic impurities in the water. Storage pools such as urban constructed wetlands, sponge city catchment ponds or sponge city artificial lakes are stored for use.

Although the specific implementation of the utility model has been described in detail in conjunction with the accompanying drawings, it should not be construed as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative efforts still belong to the protection scope of this patent.

Claims (4)

1. A rainwater collection and purification system for a sponge city, characterized in that: comprise a water collection device connected by a pipeline, an abandoned flow device, a water purification system and a storage tank; The water inlet of the water collecting device is connected with the water outlet of the sponge city surface water seepage system; The outlet pipe of the discarding device communicates with the municipal drainage pipeline; The water purification system includes a filter box, a first purification box and a second purification box connected by water pipes; the filter box includes a filter layer, a biofilm layer and a packing layer arranged in the box; the bottom of the first purification box A coagulation device filled with coagulant is provided; an ozone generating device is provided at the bottom of the second purification box. 2. The rainwater collection and purification system for sponge city according to claim 1, characterized in that: the filter layer has a pore size of 1-2 cm, and the biofilm layer has a pore size of 5-8 μm. 3. The rainwater collection and purification system for sponge city according to claim 1, characterized in that: the packing layer is physical filter packing; the physical filter packing is sponge or activated carbon. 4. The rainwater collection and purification system for sponge city according to claim 1, characterized in that: the storage pool is a sponge city artificial wetland, a sponge city catchment pool or a sponge city artificial lake.