Recently, the Zhejiang Provincial Department of Ecology and Environment issued the “Implementation Rules for the Supervision and Administration of Inbound Sewage Outlets in Zhejiang Province”. The “Implementation Rules” make it clear that sewage outlets entering the sea are classified and managed, and sewage treatment outlets of industrial and mining enterprises, industries and various other parks, and sewage treatment plants in urban sewage treatment plants are subject to key management. Implement simplified management of sewage outlets for large-scale livestock and poultry farming and large-scale aquaculture. As far as possible, inlet sewage outlets are set up in a sea area with strong diffusion and dilution capacity, making rational use of seawater's self-purification capacity to reduce the impact on the marine ecological environment. In regions where conditions are available, sewage outlets should be set to deep water, and offshore discharge should be carried out. Discharging pollutants into the ocean by evading supervision, such as setting up private temporary pipelines, is strictly prohibited. Sewage must not be discharged through rain and flood vents.

Recently, the Zhejiang Provincial Department of Ecology and Environment issued the “Implementation Rules for the Supervision and Administration of Inbound Sewage Outlets in Zhejiang Province”. The “Implementation Rules” make it clear that sewage outlets entering the sea are classified and managed, and sewage treatment outlets of industrial and mining enterprises, industries and various other parks, and sewage treatment plants in urban sewage treatment plants are subject to key management. Implement simplified management of sewage outlets for large-scale livestock and poultry farming and large-scale aquaculture. As far as possible, inlet sewage outlets are set up in a sea area with strong diffusion and dilution capacity, making rational use of seawater's self-purification capacity to reduce the impact on the marine ecological environment. In regions where conditions are available, sewage outlets should be set to deep water, and offshore discharge should be carried out. Discharging pollutants into the ocean by evading supervision, such as setting up private temporary pipelines, is strictly prohibited. Sewage must not be discharged through rain and flood vents.