Overview
Sichuan wastewater treatment plant serves Chongzhou, Sichuan, China, with a population of 134,400. It operates under China's national wastewater standards, contributing to local water quality management.
The Sichuan wastewater treatment plant is located in Chongzhou, a city in Sichuan Province, China. Serving a population of 134,400, it is a medium-to-large agglomeration facility that plays a key role in managing municipal wastewater in the region. The plant is situated in the western part of the Sichuan Basin, an area with a humid subtropical climate and dense river networks. As a Chinese wastewater facility, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for various pollutants. For plants serving over 100,000 people, Class I-A standards are typically required, mandating advanced treatment including biological nutrient removal. The regulatory framework ensures compliance with environmental protection goals. The treated effluent likely discharges into a local waterway within the Min River system, which flows into the Yangtze River. The Yangtze is one of the world's most ecologically significant rivers, supporting diverse aquatic life and providing water for millions. The plant's operations contribute to protecting downstream ecosystems, including the Yangtze's freshwater biodiversity and the East China Sea coastal zone.
Environmental context
The plant discharges into a tributary of the Min River, part of the upper Yangtze River basin. The Yangtze River supports critical habitats for species such as the Chinese sturgeon and finless porpoise. Downstream, the river flows through the Sichuan Basin and eventually reaches the East China Sea, where nutrient loading can impact coastal water quality. The plant's treatment helps mitigate eutrophication risks in this ecologically sensitive watershed.
Frequently asked questions
The plant is located in Chongzhou, a city in Sichuan Province, China, at coordinates 30.627 N, 103.656 E.
The plant serves a population of 134,400 people, classifying it as a medium-to-large agglomeration under Chinese wastewater standards.
The plant treats wastewater that would otherwise enter local waterways in the Min River system, a tributary of the Yangtze River. It helps protect the Yangtze River basin and its downstream ecosystems.
The plant operates under China's GB 18918-2002 standard, which sets discharge limits for pollutants. For plants serving over 100,000 people, Class I-A standards typically apply, requiring advanced treatment including nitrogen and phosphorus removal.
Plants of this scale in China are generally required to meet Class I-A standards, which involve biological treatment with nutrient removal, often using processes like A2O or oxidation ditches, followed by disinfection.
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