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Urban rainfall runoff pollution control method based on three-level management and control system

A technology for urban rainfall and pollution control, applied in the direction of sewage, waterway systems, resources, etc., can solve the problems of pollutant overflow and the inability to prevent the generation of pollutants

Pending Publication Date: 2020-05-22
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

However, when the total amount of rainwater and sewage exceeds the load of the pipe network, the rainwater and sewage are likely to overflow and pollute the water body.
[0011] The urban rainfall runoff pollution control methods currently adopted have certain limitations. The pre-production reduction of pollutants can only reduce the generation of pollutants, but the method of interception has the risk of pollutant overflow.

Method used

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  • Urban rainfall runoff pollution control method based on three-level management and control system
  • Urban rainfall runoff pollution control method based on three-level management and control system
  • Urban rainfall runoff pollution control method based on three-level management and control system

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Embodiment Construction

[0020] The present invention will be described in detail below according to specific embodiments of the present invention.

[0021] Conduct EMC runoff pollution analysis first

[0022] During a rainfall process, the pollutant concentration changes greatly, so EMC (runoff average concentration) is often used to represent the pollutant concentration. The calculation method of EMC is to divide the total pollutant amount by the total runoff. The formula is:

[0023]

[0024] In the formula, M is the total amount of a certain pollutant in the whole process of runoff, V is the corresponding total amount of runoff, C T is the concentration of a certain pollutant that varies with runoff time t, Q T is the runoff flow that varies with runoff time, and T is the total runoff time.

[0025] The urban underlying surface is mainly divided into two types: pavement and roof. Based on the rainfall runoff EMC value of urban pavement and roof, combined with the rainfall of the event, the po...

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Abstract

The invention relates to an urban rainfall runoff pollution control method based on a three-level management and control system. The method is based on analysis and calculation of urban rainfall runoff pollution output. By construction of a rainfall runoff pollution reduction system with three-level coupling of source control, midway reduction and tail end treatment, runoff pollution whole-processcontrol is achieved, urban runoff river entry pollution is greatly reduced, urban water environment stability is maintained, and the method can be applied to non-point source pollution treatment of urban rainfall runoff formation.

Description

technical field [0001] The invention is an urban rainfall runoff pollution control method based on a three-level control system, which belongs to the field of urban non-point source pollution control and reduction. Background technique [0002] With the continuous advancement of the urbanization process and the continuous improvement of the concept of urban development and protection, the urban rainwater and sewage system has undergone stages such as local discharge, rainwater and sewage combined (intercept) drainage, and rainwater and sewage separate drainage. The construction of the pipeline system has basically achieved the full coverage of urban domestic sewage collection and treatment. Under this background, non-point source pollution formed by urban rainfall runoff has become the main source of urban water environment pollution and one of the main factors causing the deterioration of urban water environment. Strengthening the management and control of urban rainfall ru...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26E03F1/00
CPCG06Q10/0637G06Q50/26E03F1/00
Inventor 周志才
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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