Classification of sewage outlets in Zhejiang Province

Industrial sewage outlets, urban sewage treatment plant sewage outlets, agricultural sewage outlets and other sewage outlets. According to the Work Plan of Strengthening the Supervision and Management of Sewage Outlet into the River and the Sea in Zhejiang Province, the classification of sewage outlet is defined. According to the industry to which the responsible subject of the sewage outlet belongs, the composition and characteristics of the discharged wastewater, and according to the relevant technical guidelines for the supervision and management of sewage outlets such as the Rules for Naming and Coding Sewage Outlet into River (Sea) issued by the Ministry of Ecology and Environment, the sewage outlets are divided into four categories: industrial sewage outlets, urban sewage treatment plant sewage outlets, agricultural sewage outlets and other sewage outlets. The sewage outlet into the river and the sea refers to the outlet that discharges sewage into the environmental water body directly or through sewage channels such as pipelines and ditches, and is an important node for the ecological environment protection of river basins and sea areas.