Overview
Gansu wastewater treatment plant serves 489,000 people in Anning District, Lanzhou, Gansu Province, China. It discharges treated effluent into the Yellow River basin, supporting downstream water quality.
The Gansu wastewater treatment plant is located in Anning District, Lanzhou, Gansu Province, China, serving a population of 489,000. It is part of the municipal wastewater infrastructure for the Lanzhou metropolitan area, situated along the Yellow River. As a large agglomeration serving nearly half a million people, the plant is expected to meet China's national discharge standards, which require secondary or advanced treatment for such scales. The facility operates under China's Water Pollution Prevention and Control Law, which mandates stringent effluent limits for sensitive water bodies like the Yellow River. The plant's treated effluent ultimately flows into the Yellow River, a major waterway that supports agriculture, industry, and ecosystems across northern China. Downstream, the river passes through several provinces before reaching the Bohai Sea, making the plant's performance critical for regional water quality and ecological health.
Environmental context
The plant discharges into the Yellow River basin, which drains through arid and semi-arid regions of northern China before reaching the Bohai Sea. The river supports diverse aquatic life and provides water for irrigation and drinking water for millions. Effective treatment is essential to prevent eutrophication and protect downstream ecosystems, particularly in sensitive areas where water scarcity amplifies pollution impacts.
Frequently asked questions
The plant is located in Anning District, Lanzhou, Gansu Province, China, along the Yellow River.
The plant serves approximately 489,000 people in the Lanzhou metropolitan area.
The plant discharges treated effluent into the Yellow River, which flows through northern China to the Bohai Sea.
The plant operates under China's Water Pollution Prevention and Control Law, which sets discharge standards for municipal wastewater. For a plant serving nearly 500,000 people, secondary or advanced treatment is typically required to meet national effluent limits.
In China, large agglomerations like this one are expected to have at least secondary biological treatment, often with nutrient removal, to comply with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
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