Overview
Shaanxi wastewater treatment plant serves the Weiyang district of Xi'an, China, with a population equivalent of 600,000. It operates under China's national wastewater discharge standards.
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 approximately 600,000, placing it among larger municipal treatment facilities in the region. The plant is part of Xi'an's urban wastewater infrastructure, which manages effluent from residential and industrial sources across the city. As a large-scale facility serving over 500,000 people, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). This national standard sets limits on key pollutants such as COD, BOD, ammonia nitrogen, and total phosphorus, with stricter requirements for plants discharging into sensitive water bodies. Tertiary treatment is commonly required for plants of this size to achieve Class 1A or 1B discharge limits. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Wei River, a major tributary of the Yellow River. The Wei River basin supports agricultural irrigation and provides water for downstream communities. Proper treatment is critical to prevent eutrophication and protect the ecological health of the Yellow River system, which is a vital water resource for northern China.
Environmental context
The plant discharges into the Wei River basin, which flows into the Yellow River, China's second-longest river. The Yellow River is a crucial water source for agriculture, industry, and drinking water in the arid north. The Wei River itself supports diverse aquatic life and is an important migratory corridor for fish. Effective nutrient removal at the plant helps reduce the risk of algal blooms and maintains water quality in this ecologically sensitive watershed.
Frequently asked questions
The Shaanxi wastewater treatment plant is located in the Weiyang district of Xi'an, the capital of Shaanxi Province, China.
The plant serves approximately 600,000 people, making it a large municipal treatment facility.
The plant discharges treated effluent into the local water system, which flows into the Wei River and eventually the Yellow River.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. Large plants like this typically require tertiary treatment to meet Class 1A or 1B standards.
For plants of this scale in China, secondary biological treatment followed by tertiary nutrient removal is standard to comply with stringent discharge limits, especially when discharging into sensitive water bodies like the Yellow River basin.
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