Rainwater is directly discharged into the river through the rainwater pipe network, and sewage is collected through the sewage pipe network and sent to the sewage treatment plant for treatment, so as to avoid pollution caused by sewage directly entering the river. Moreover, the collection, utilization and centralized management of rainwater discharge can reduce the impact of water quantity on sewage treatment plants and ensure the treatment efficiency of sewage treatment plants.
The separation of rainwater and sewage facilitates the collection, utilization, centralized management and discharge of rainwater, reduces the impact of water quantity on sewage treatment plants, and ensures the treatment efficiency of sewage treatment plants. It will greatly improve the environmental quality, urban taste and management level of the city, and effectively improve the living environment and quality of life of the general public.