Method for setting city initial rainwater interception standard

A technology of initial rainwater and interception, which is applied in general water supply conservation, special data processing applications, instruments, etc., and can solve problems such as the lack of rainwater interception and storage standards

Active Publication Date: 2014-02-12
上海碧波水务设计研发中心
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  • Abstract
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Problems solved by technology

[0007] What the present invention aims to solve is the problem of the lack of effec...

Method used

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  • Method for setting city initial rainwater interception standard
  • Method for setting city initial rainwater interception standard

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Embodiment Construction

[0041] Taking Shanghai as an example, the present invention will be introduced and described in detail below through specific examples to better understand the contents of the present invention, but it should be understood that the following examples do not limit the scope of the present invention.

[0042] Step 1. Analysis of urban initial rainwater quality characteristics

[0043] Three representative roofs, asphalt roof, concrete roof and tile roof, were selected for long-term monitoring of the water quality of roof rainwater runoff from 2003 to 2006, and 23 effective rainfall events and 41 groups of different roof rainwater runoff processes were measured. The scouring effect on the roof is weak, and the roof has not been washed clean at the end of the rainfall. During moderate to heavy rain, a small amount of rainwater dissolves a large amount of sediment at the beginning of the rainfall, the water quality is poor, and the pollution is serious. With the increase of rainfall...

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Abstract

The invention provides a method for setting a city initial rainwater interception standard. The city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are counted, and high-efficiency areas of the city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are found; and required initial rainwater interception rainfall is obtained and enabled to meet requirements of the high-efficiency areas, the flood prevention standard and the water environmental capacity. According to the city initial rainwater interception standard set with the method, initial rainwater with higher pollutant concentration can be intercepted effectively, so that pollution loads of rainfall runoffs to the water environment are substantially reduced.

Description

technical field [0001] The invention relates to a method for formulating the standard of urban initial rainwater interception, in particular to a method for formulating the standard of urban initial rainwater treatment interception with a better environmental-economic benefit ratio. Background technique [0002] When the degree of urbanization is low, the proportion of permeable ground is large, the runoff of rainwater is small, and it is relatively clean. The pollution of urban water bodies is mainly caused by petroleum industry sewage and domestic sewage. Therefore, the focus of urban water environment protection measures is mainly to improve the sewage treatment rate. , Rainwater management more consider the needs of flood control. [0003] With the continuous development of urban construction, the emergence of impermeable bottom surfaces such as concrete buildings and roads has led to great changes in the conditions of the underlying surface of the city and the hydrologi...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q50/26
CPCY02A10/40Y02A20/152
Inventor 时珍宝张建频谭琼马丽
Owner 上海碧波水务设计研发中心
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