Overview
Sichuan wastewater treatment plant serves Xuanhan County in Dazhou, Sichuan, China, treating wastewater for approximately 79,100 people. The plant discharges into local waterways within the Yangtze River basin.
The Sichuan wastewater treatment plant is located in Xuanhan County, Dazhou, Sichuan Province, China, along Binhe Road in Dongxiang Subdistrict. It serves a population of approximately 79,100 residents, making it a medium-sized municipal facility within the region's wastewater infrastructure. As a plant in China, it operates under national wastewater discharge standards (GB 18918-2002) and local environmental regulations. For a facility serving around 79,100 people, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards before discharge. The regulatory framework ensures compliance with effluent limits. The treated effluent is released into local rivers that ultimately drain into the Yangtze River basin, one of China's most important water systems. The downstream environment supports diverse aquatic life and provides water for agriculture, industry, and domestic use. Proper treatment is crucial to protect water quality in this densely populated and ecologically significant region.
Environmental context
The plant discharges into local waterways within the Yangtze River basin, which flows eastward through central China before emptying into the East China Sea near Shanghai. The basin supports a vast array of aquatic species and provides drinking water for hundreds of millions of people. Downstream ecosystems include wetlands and floodplains that are critical for biodiversity and flood control. Effective wastewater treatment helps prevent eutrophication and contamination in this heavily utilized river system.
Frequently asked questions
The plant is located at Binhe Road, Dongxiang Subdistrict, Xuanhan County, Dazhou, Sichuan Province, China.
The plant serves approximately 79,100 people in Xuanhan County and surrounding areas.
The treated effluent is discharged into local waterways that are part of the Yangtze River basin, eventually reaching the East China Sea.
The plant must comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits on BOD, COD, nitrogen, phosphorus, and other pollutants. For a facility of this size, Class 1-A or 1-B standards typically apply.
Plants of this scale in China commonly use secondary biological treatment processes such as activated sludge or A2O (anaerobic-anoxic-oxic) to achieve nutrient removal, along with disinfection to meet discharge standards.
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