Overview
The Yunnan wastewater treatment plant serves Dali City in Yunnan Province, China, with a population equivalent of 276,500. It operates under China's national wastewater discharge standards.
The Yunnan wastewater treatment plant is located in Dali City, Yunnan Province, China, serving a population equivalent of 276,500. The facility is situated in the Xiaoguanyi area of Taihe Subdistrict, within the Dali Bai Autonomous Prefecture. As a large-scale municipal treatment plant, it plays a key role in managing wastewater from the urban and peri-urban areas of Dali. China's wastewater treatment regulations, including the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), set effluent quality requirements based on the receiving water body's sensitivity. For a plant of this scale serving over 100,000 people, advanced treatment with nutrient removal is typically expected to protect downstream water bodies. The plant's design and operation align with national standards for large agglomerations. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into Erhai Lake, a major freshwater lake in Yunnan. Erhai Lake is ecologically significant, supporting diverse aquatic life and providing water for irrigation and tourism. The plant's performance is critical to preventing eutrophication and maintaining the lake's water quality.
Environmental context
The plant's discharge enters the local drainage network that flows into Erhai Lake, a large plateau lake in Yunnan. Erhai Lake is a vital water resource for the region, supporting fisheries, agriculture, and tourism. The lake's ecosystem is sensitive to nutrient loading, making effective wastewater treatment essential to prevent algal blooms and maintain biodiversity. The plant's operations directly influence the health of this downstream water body.
Frequently asked questions
The plant is located in Xiaoguanyi Village, Taihe Subdistrict, Dali City, Dali Bai Autonomous Prefecture, Yunnan Province, China.
The plant serves a population equivalent of 276,500 people, classifying it as a large agglomeration under Chinese wastewater regulations.
The treated effluent discharges into the local watershed that ultimately flows into Erhai Lake, a major freshwater lake in Yunnan Province.
The plant operates under China's national standards, including GB 18918-2002, which sets discharge limits for pollutants based on the sensitivity of the receiving water body.
For a plant serving over 100,000 people, Chinese regulations typically require advanced treatment with biological nutrient removal to protect sensitive water bodies like Erhai Lake.
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