Nei Mongol Wastewater Treatment Plant, 陕坝镇, Inner Mongolia

The Nei Mongol wastewater treatment plant is located in 陕坝镇, within the 杭锦后旗 banner of Bayannur City, Inner Mongolia Autonomous Region, China. The facility serves an estimated population of 69,000, classifying it as a medium-sized municipal treatment plant in the region. As a Chinese wastewater facility, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits based on the receiving water body's sensitivity. For plants serving populations of this scale, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on local environmental regulations. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Yellow River basin via the Hetao irrigation area. This region is ecologically significant as it supports agricultural irrigation and sustains wetland habitats along the Yellow River, a major waterway in northern China. Proper treatment is critical to prevent eutrophication and protect downstream water quality.

The plant discharges into the Yellow River basin, one of China's most important river systems, which flows through arid and semi-arid regions before reaching the Bohai Sea. The Hetao Plain, where the plant is located, relies heavily on the Yellow River for irrigation and ecological balance. Effective wastewater treatment helps reduce nutrient and pollutant loads, safeguarding aquatic life and agricultural water quality in this water-scarce region.