Overview
Qinghai wastewater treatment plant serves 19,000 people in Lejiayuan Town, Xining, Qinghai Province, China. The facility operates under China's national wastewater standards for inland communities.
The Qinghai wastewater treatment plant is located in Lejiayuan Town, Chengdong District, Xining, Qinghai Province, China. It serves a population of approximately 19,000 residents, placing it in the small-to-medium agglomeration category for Chinese inland communities. Under China's national wastewater discharge standards (GB 18918-2002), plants of this scale are typically required to meet Class 1-A or Class 1-B effluent limits, which mandate biological treatment with nutrient removal for sensitive water bodies. The regulatory framework ensures appropriate treatment for the local environment. The treated effluent is discharged into the Huangshui River system, a tributary of the Yellow River (Huang He). This water body supports agricultural irrigation and local aquatic ecosystems before flowing into the Yellow River, which ultimately reaches the Bohai Sea. The plant plays a key role in protecting downstream water quality in this arid region.
Environmental context
The plant discharges into the Huangshui River, a major tributary of the Yellow River. The Huangshui flows through Xining and eventually joins the Yellow River in Gansu Province, which drains into the Bohai Sea. The region's semi-arid climate makes water quality management critical for downstream agricultural use and ecological health. The receiving waters support diverse aquatic life and are important for local irrigation.
Frequently asked questions
The plant is located in Lejiayuan Town, Chengdong District, Xining, Qinghai Province, China, near the Xining-Huangyuan Expressway.
The plant serves approximately 19,000 residents in the Lejiayuan area of Xining.
Treated effluent is discharged into the Huangshui River, a tributary of the Yellow River, which flows through Xining and eventually reaches the Bohai Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for inland facilities.
For small-to-medium agglomerations in China, secondary biological treatment with nutrient removal is standard, often meeting Class 1-A or Class 1-B standards depending on the receiving water body's sensitivity.
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