Overview
Shaanxi wastewater treatment plant serves 750,000 people in Weiyang District, Xi'an, China. It operates under China's national wastewater standards for large urban agglomerations.
The Shaanxi wastewater treatment plant is located in Weiyang District, Xi'an, Shaanxi Province, China, serving a population of 750,000. As a large urban facility, it is part of Xi'an's municipal wastewater infrastructure, managing domestic and industrial effluent from the northern part of the city. China's wastewater treatment standards for large agglomerations require secondary treatment as a minimum, with advanced treatment increasingly common in sensitive areas. The plant's scale suggests it likely employs biological treatment processes such as activated sludge, with potential nutrient removal to meet discharge limits set by the national discharge standard (GB 18918-2002). The plant discharges into the Ba River, a tributary of the Wei River, which flows into the Yellow River. This downstream connection is ecologically significant as the Yellow River basin supports diverse aquatic life and is a critical water resource for northern China. The plant's operations help protect water quality in this major river system.
Environmental context
The plant discharges into the Ba River, a tributary of the Wei River, which ultimately flows into the Yellow River. The Yellow River basin is a vital water source for agriculture, industry, and domestic use in northern China, and supports diverse aquatic ecosystems including fish species such as the Yellow River carp. Effective treatment at this plant helps reduce nutrient and pollutant loads, protecting downstream water quality and ecological health.
Frequently asked questions
The plant is located in Weiyang District, Xi'an, Shaanxi Province, China, near the Aoti Tunnel and Ba Pu San Road.
The plant serves approximately 750,000 people, classifying it as a large urban agglomeration under Chinese wastewater regulations.
The treated effluent is discharged into the Ba River, a tributary of the Wei River, which flows into the Yellow River.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for COD, BOD, ammonia, and other pollutants. Large plants like this typically require secondary treatment with potential advanced nutrient removal.
For a plant of this scale, standard treatment includes primary sedimentation followed by biological treatment such as activated sludge or A2O process for nutrient removal. Tertiary treatment with disinfection is increasingly common to meet stricter discharge standards.
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