Overview
Guizhou wastewater treatment plant serves Zhijin County in Guizhou, China, with a population of 93,000. It operates under China's national wastewater standards.
The Guizhou wastewater treatment plant is located in Zhijin County, part of Bijie City in Guizhou Province, China. It serves a population of approximately 93,000 people, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. The facility is situated in the inland region of southwestern China, away from coastal areas. As a plant serving this population size, it is expected to comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment as a minimum. Larger plants often incorporate advanced treatment to meet stricter effluent limits, especially in environmentally sensitive areas. The treated effluent likely discharges into a local river or watercourse within the Yangtze River basin, as Guizhou Province is part of the upper Yangtze watershed. The region's karst topography makes groundwater and surface water particularly vulnerable to pollution, emphasizing the importance of effective wastewater treatment for protecting downstream aquatic ecosystems and drinking water sources.
Environmental context
The plant is located in the Wujiang River sub-basin of the Yangtze River basin, which ultimately drains into the East China Sea. The surrounding karst landscape features porous limestone, making groundwater highly susceptible to contamination. Effective treatment is critical to prevent eutrophication and protect the ecological health of the Yangtze River system, which supports diverse aquatic life and provides water for millions downstream.
Frequently asked questions
The plant is located in Zhijin County, Bijie City, Guizhou Province, China, at Jinbei Road in the Wenteng subdistrict.
The plant serves approximately 93,000 people, making it a medium-to-large agglomeration under Chinese wastewater classification.
The plant discharges into the Wujiang River system, a tributary of the Yangtze River, helping protect downstream water quality in the Yangtze basin.
The plant operates under China's GB 18918-2002 standard, which requires secondary treatment for municipal plants. Larger plants like this often need advanced treatment to meet local discharge limits.
Plants of this scale in China typically employ secondary treatment processes such as activated sludge, and may include tertiary treatment for nutrient removal to comply with stricter effluent standards in sensitive areas.
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