The return to design status of stormwater system operation is the key to pollution control in urban rainy days
Rainy drainage pollution is a limiting factor affecting the current improvement of ur-ban water environment quality,and the return of stormwater system operation to the design status is the key to controlling urban rainy pollution.This article discusses the problem of controlling drainage pollution in rainy days from three aspects:the meaning of stormwater system design sta-tus,how to return the stormwater system to the design status,and the key control measures in the process of returning to the design status.A fully separated stormwater system designed according to current national standards can effectively achieve river pollution control by operating according to the design status;The dynamic traceability investigation and remediation of pollution can make rainwater and sewage'go their separate ways',strengthen the detection and repair of urban drain-age pipes and channels to ensure the operation water level,and make the stormwater system return to the design status from the technical means,and long term management and intelligent operation and maintenance are are the key to maintain the design status of the stormwater system;During the process of synchronously proposing the return design status of the stormwater system,meas-ures such as reducing emissions based on the interception source of the rainwater inlet and control-ling the discharge of sewage from the combined drainage area during rainy days can be taken.
Stormwater systemRainy drainage pollutionDesign statusStormwater manage-mentIntelligent operation and maintenance
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