Overview
Nei Mongol wastewater treatment plant serves Tianshan Town in Inner Mongolia, China, with a population of 55,000. The plant operates under China's national wastewater discharge standards.
The Nei Mongol wastewater treatment plant is located in Tianshan Town (天山镇), within the Ar Horqin Banner of Chifeng City, Inner Mongolia Autonomous Region, China. The facility serves an estimated population of 55,000, placing it in the medium-scale category for municipal wastewater treatment in the region. As a Chinese wastewater treatment facility, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for conventional pollutants, nutrients, and heavy metals. For agglomerations of this size, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the sensitivity of the receiving environment. The plant's treated effluent is discharged into local watercourses that ultimately drain into the Xiliao River system, part of the larger Liao River basin. This watershed supports agricultural irrigation and provides habitat for aquatic species. Proper treatment is essential to prevent eutrophication and protect downstream water quality in this semi-arid region.
Environmental context
The plant discharges into the Xiliao River watershed, which flows eastward through Inner Mongolia and eventually reaches the Bohai Sea. The receiving waters support local agriculture and provide habitat for migratory fish species. Effective nutrient removal is critical to prevent algal blooms in downstream reservoirs and maintain ecological balance in this water-scarce region.
Frequently asked questions
The plant is located in Tianshan Town (天山镇), Ar Horqin Banner, Chifeng City, Inner Mongolia Autonomous Region, China.
The plant serves approximately 55,000 people, classifying it as a medium-sized municipal wastewater treatment facility.
Treated effluent is discharged into local watercourses that flow into the Xiliao River system, part of the Liao River basin, ultimately reaching the Bohai Sea.
The plant must comply with China's GB 18918-2002 discharge standard, which sets limits for pollutants such as COD, BOD, ammonia nitrogen, and phosphorus. For a plant of this size, secondary treatment with nutrient removal is typically required.
For agglomerations of this scale, Chinese regulations generally mandate secondary biological treatment with nitrogen and phosphorus removal to meet Class 1-A or 1-B standards, depending on the sensitivity of the receiving water body.
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