Beijing Wastewater Treatment Plant, Fangshan District, Beijing, China

The Beijing wastewater treatment plant is located in Fangshan District, Beijing, China, serving a population equivalent of 220,000. It is part of the municipal wastewater infrastructure for the greater Beijing area, which includes both urban and suburban districts. As a plant serving a medium-to-large agglomeration, it is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment with nutrient removal for plants of this scale. The regulatory framework ensures compliance with national standards. The plant discharges treated wastewater into local water bodies that eventually drain into the Hai River system, which flows into the Bohai Sea. The receiving environment supports diverse aquatic life and is an important ecological corridor in the North China Plain.

The plant's treated effluent enters the local drainage network, which flows into the Hai River basin and ultimately reaches the Bohai Sea. The Bohai Sea is a semi-enclosed marginal sea with significant ecological importance, supporting fisheries and migratory bird populations. The plant's discharge contributes to the overall water quality management in a region facing challenges from industrial and agricultural runoff.