Nei Mongol Wastewater Treatment Plant, Chengbei Subdistrict, Inner Mongolia

The Nei Mongol wastewater treatment plant is located in Chengbei Subdistrict, Linxi County, within the Inner Mongolia Autonomous Region of China. The facility serves a population of approximately 46,700 people, making it a medium-sized municipal treatment plant in the region. China's wastewater treatment standards are governed by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for various pollutants. Plants of this scale are typically expected to provide at least secondary treatment to meet these national standards, ensuring adequate removal of organic matter and suspended solids. The treated effluent from the plant likely discharges into a local watercourse within the Xiliao River basin, which ultimately flows into the Bohai Sea. The plant plays a key role in protecting downstream water quality and supporting the ecological health of the region's rivers and coastal environment.

The plant is situated in the Xiliao River basin, a major tributary of the Liao River system that drains into the Bohai Sea. The region's semi-arid climate and seasonal water flows make the receiving waters sensitive to pollution. Proper treatment helps maintain aquatic biodiversity and supports agricultural and domestic water uses downstream.