Overview
Shaanxi wastewater treatment plant serves 1.6 million people in Weiyang District, Xi'an, Shaanxi Province, China. It operates under China's national wastewater standards for large urban agglomerations.
The Shaanxi wastewater treatment plant is located in the Weiyang District of Xi'an, the capital of Shaanxi Province in central China. It serves a population of 1.6 million, classifying it as a large-scale municipal facility within the rapidly urbanizing Xi'an metropolitan area. As a major plant in China, it is subject to the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets stringent limits for pollutants like COD, BOD, and nutrients. For agglomerations of this size, advanced treatment with nutrient removal is typically required to meet Class 1A standards, especially given the environmental sensitivity of receiving waters. The plant's treated effluent likely discharges into the Wei River, a major tributary of the Yellow River, which flows through the Loess Plateau and ultimately into the Bohai Sea. The Wei River basin supports extensive agriculture and urban water supply, making effective wastewater treatment critical for downstream water quality and ecological health.
Environmental context
The plant's receiving water body is likely the Wei River, which flows through the Loess Plateau and joins the Yellow River in Shaanxi. The Yellow River then empties into the Bohai Sea. The Wei River basin is ecologically important for its role in regional water supply and irrigation, and it supports diverse aquatic life. Effective treatment helps prevent eutrophication and protects downstream ecosystems in the Yellow River delta.
Frequently asked questions
The plant is located in the Weiyang District of Xi'an, Shaanxi Province, China, within the Xi'an Economic and Technological Development Zone.
The plant serves a population of 1.6 million people, making it a large-scale municipal facility.
The treated effluent is likely discharged into the Wei River, a major tributary of the Yellow River, which flows through the Loess Plateau to the Bohai Sea.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. Large plants like this typically require advanced treatment to meet Class 1A standards.
For large agglomerations in China, secondary treatment with biological nutrient removal is standard, often followed by advanced treatment (e. g. , filtration, disinfection) to meet stringent Class 1A discharge limits.
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