Overview
Sichuan wastewater treatment plant serves Shiyanqiao Town, Longchang City, Neijiang, Sichuan, China. It handles a population equivalent of 107,000 under China's national wastewater standards.
The Sichuan wastewater treatment plant is located in Shiyanqiao Town, Longchang City, within Neijiang, Sichuan Province, China. It serves a population equivalent of 107,000, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater management. The plant is situated inland, more than 50 km from the coast, and its operations are part of the broader water infrastructure in the upper Yangtze River basin. China's wastewater treatment standards, governed by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), require secondary treatment as a baseline, with tertiary treatment mandated for plants discharging into sensitive water bodies. For a plant of this scale, typical treatment includes biological processes such as activated sludge or oxidation ditch, followed by disinfection. Regulatory compliance ensures effluent meets national Class 1A or 1B standards depending on receiving water sensitivity. The treated effluent likely discharges into a local tributary of the Tuo River, which flows into the Yangtze River, ultimately reaching the East China Sea. The plant plays a key role in protecting downstream water quality in a region characterized by dense population and agricultural activity. Its operation supports the ecological health of the Yangtze River system, which is critical for biodiversity, fisheries, and water supply for millions of people.
Environmental context
The plant discharges into a tributary of the Tuo River, part of the upper Yangtze River basin. The Yangtze River is a vital ecological corridor supporting diverse aquatic life, including endangered species such as the Chinese sturgeon and finless porpoise. The region's water quality is influenced by agricultural runoff and industrial discharges, making effective wastewater treatment essential for maintaining downstream ecosystem health. The plant's location inland reduces direct marine impact, but its effluent ultimately reaches the East China Sea, contributing to nutrient loading in coastal waters.
Frequently asked questions
The plant is located in Shiyanqiao Town, Longchang City, Neijiang, Sichuan Province, China, along G348 in the Jinge Street area.
The plant serves a population equivalent of 107,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management.
The plant protects local tributaries of the Tuo River, which flows into the Yangtze River, ultimately reaching the East China Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment as a minimum and tertiary treatment for sensitive areas.
For a plant of this scale, typical treatment includes secondary biological processes like activated sludge or oxidation ditch, followed by disinfection, to meet Class 1A or 1B discharge standards.
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