Overview
Sichuan wastewater treatment plant serves Zhangzha Town in Jiuzhaigou County, Sichuan, China, with a population of 12,500. It operates under China's national wastewater standards.
The Sichuan wastewater treatment plant is located in Zhangzha Town, Jiuzhaigou County, within the Aba Tibetan and Qiang Autonomous Prefecture of Sichuan Province, China. The facility serves a population of approximately 12,500 residents, placing it in the small-to-medium agglomeration category for Chinese wastewater infrastructure. Under China's national wastewater discharge standards (GB 18918-2002), treatment plants of this scale are typically required to achieve at least secondary treatment, with more stringent nutrient removal standards applicable in sensitive watersheds. The plant's operational context is shaped by its location in a mountainous, ecologically sensitive region near Jiuzhaigou Valley, a renowned scenic area. The treated effluent from this plant likely discharges into local streams that feed into the upper reaches of the Jialing River system, part of the Yangtze River basin. The surrounding area is known for its karst landscapes and high-altitude lakes, making water quality protection critical for both ecological integrity and tourism.
Environmental context
The plant's receiving waters are part of the upper Jialing River watershed, which flows into the Yangtze River and ultimately the East China Sea. This region is ecologically sensitive due to its proximity to Jiuzhaigou Valley, a globally recognized scenic area with fragile alpine lakes and wetlands. Protecting water quality is essential for maintaining downstream aquatic habitats and the area's tourism-dependent economy.
Frequently asked questions
The plant is located in Zhangzha Town, Jiuzhaigou County, within the Aba Tibetan and Qiang Autonomous Prefecture of Sichuan Province, China.
The facility serves approximately 12,500 residents, classifying it as a small-to-medium agglomeration under Chinese wastewater standards.
Treated effluent is likely discharged into local streams that feed into the upper Jialing River system, part of the Yangtze River basin, ultimately reaching the East China Sea.
The plant operates under China's national wastewater discharge standard GB 18918-2002, which sets limits for pollutants based on receiving water sensitivity. Plants in ecologically sensitive areas may require more advanced treatment.
For agglomerations of this size, secondary treatment is standard, with additional nutrient removal required in sensitive watersheds like those near Jiuzhaigou.
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