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System and method for runoff in-situ processing in early days of urban rainfall

A technology for initial runoff and in-situ treatment, applied in waterway systems, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of low treatment efficiency of rainwater retention ponds, the need for special personnel to be responsible for operation and maintenance, and high infrastructure costs. The effect of avoiding storm surges, facilitating scheduling, or avoiding pollution

Inactive Publication Date: 2014-12-24
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above treatment methods have been widely used, but there are still some problems and defects. For example, the treatment efficiency of the rainwater retention pond is relatively low, the purification cycle is long, and mosquitoes and flies may breed, which has potential environmental hygiene problems; although the rainwater storage pond treats The efficiency is higher, but it requires higher infrastructure costs, and there is also the problem that special personnel are required to be responsible for operation and maintenance, which is difficult in actual application

Method used

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  • System and method for runoff in-situ processing in early days of urban rainfall

Examples

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Embodiment 1

[0032] Such as figure 1 As shown, an in-situ treatment system for the initial runoff of urban rainfall includes a pond ridge 2, a sedimentation bay 3, a landscape pool 6 and a water distribution system connected in sequence; The sedimentation bay 3 is connected; the sedimentation bay 3 is built around the landscape pool 6, and is connected with the landscape pool through the outlet pipe; the water distribution system is set in the landscape pool 6; The height decreases successively, and the bottom of the pond ridge 2 and the sedimentation bay 3 is higher than the water surface of the landscape pool 6;

[0033] Tanggeng 2 is constructed using the following method: excavate a 0.5-1m wide and 0.3m deep trench along the edge of Sediment Bay 2, fill the trench with cinder, zeolite and ceramsite in a mass ratio of 1:2:1, and obtain pond ridge;

[0034] The sedimentation bay 3 is constructed by the following method: excavate a trench with a width of 0.3-0.6m and a depth of no more ...

Embodiment 2

[0045] The courtyard area of ​​an environmental research center is about 600m 2 , there is a landscape pool in the courtyard with a water surface area of ​​about 20m 2 , with an average water depth of 0.6m. It is divided into deep water area, shallow water area, and waterfront area along the natural gentle slope. The landscape pool is usually used as the landscape sketch beautification center environment of the environmental research center. When it rains, it is controlled by the water distribution system to realize the initial surface runoff. storage;

[0046] In order to reduce the pollutants in the initial surface runoff, according to the structure of the urban rainfall initial runoff in-situ treatment system in Example 1, the landscape pool is transformed into a landscape pool with the function of initial rainwater regulation, storage and purification, and its volume is calculated according to the rainfall formula out;

[0047] First, use the waterfront area to build the...

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Abstract

The invention discloses a system and a method for runoff in-situ processing in early days of urban rainfall. The system for the runoff in-situ processing in the early days of the urban rainfall comprises a pond causeway, a sediment bay, a landscape pool and a water distribution system which are sequentially connected, wherein the pond causeway surrounds the sediment bay to be arranged on the periphery and connected with the sediment bay through a water outlet pipe; the sediment bay surrounds the landscape pool to be arranged and connected with the landscape pool through the water outlet pipe; the water distribution system is arranged in the landscape pool; the heights of bottoms of the pond causeway, the sediment bay, the water distribution system and the landscape pool sequentially decline; and bottoms of the pond causeway and the sediment bay are higher than the water level of the landscape pool. The system aims at characteristics that runoff carries multiple pollutants and pollution loads are high in the early days of the urban rainfall to perform a design, so that a rain flood peak is avoided and the recycling of rain water is achieved. The method using the system to achieve the runoff in-situ processing in the early days of the urban rainfall is a new method for the runoff in-situ processing in the early days of the urban rainfall and has the advantages of being simple and easy to achieve, effectively reducing or avoiding early rain water pollution to receiving waters and achieving good scheduling in a drainage area.

Description

technical field [0001] The invention belongs to the technical field of urban rainfall runoff treatment, in particular to an in-situ treatment system and method for urban rainfall initial runoff. technical background [0002] Urban rainfall runoff non-point source pollution refers to water pollution caused by dissolved or solid pollutants produced by land activities flowing into receiving water bodies from non-specific locations through the runoff process under the leaching and scouring action of rainfall runoff. Urban rainstorm runoff contains a large amount of pollutants, and the pollution load of initial runoff is much higher than that of urban domestic sewage, which has become one of the important problems of urban water environment pollution. [0003] Urban rainfall runoff pollution control is generally divided into two methods: source control and terminal treatment. Among them, source control is suitable for controlling the total amount of non-point source pollution loa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F1/00E03F5/14E02B1/00
Inventor 虢清伟许振成曾东易皓周自坚
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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