Overview
Sichuan wastewater treatment plant serves Shifang City, Deyang, Sichuan, China, with a population equivalent of 118,900. It operates under China's national wastewater discharge standards.
The Sichuan wastewater treatment plant is located in Shifang City, Deyang, Sichuan Province, China. It serves a population equivalent of approximately 118,900, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater management. The plant is situated inland, away from coastal areas, and its operations are governed by China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). As a facility serving nearly 119,000 people, the plant is expected to meet at least secondary treatment standards under Chinese regulations, which require removal of organic matter and suspended solids. Typical plants of this scale in Sichuan province have capacities ranging from 20,000 to 50,000 m³/day. The treatment process details are not disclosed, but common technologies in the region include activated sludge processes or sequencing batch reactors. The plant discharges treated effluent into local water bodies that eventually drain into the Yangtze River basin via the Tuo River system. This watershed supports agricultural irrigation and provides drinking water for downstream communities. The plant plays a critical role in protecting the Tuo River and Yangtze River from untreated sewage, reducing nutrient loading and safeguarding aquatic ecosystems in the region.
Environmental context
The plant's treated effluent flows into the Tuo River, a tributary of the Yangtze River, which ultimately reaches the East China Sea. The Tuo River watershed supports diverse aquatic life and is used for irrigation and drinking water supply. The plant helps reduce organic and nutrient pollution, protecting downstream water quality and preventing eutrophication in the Yangtze estuary.
Frequently asked questions
The plant is located in Shifang City, Deyang, Sichuan Province, China.
The plant serves a population equivalent of approximately 118,900 people.
The treated effluent is discharged into local water bodies that flow into the Tuo River, a tributary of the Yangtze River.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment for facilities of this scale.
Plants of this size in China typically employ secondary treatment processes such as activated sludge or sequencing batch reactors to meet national discharge standards.
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