Anhui Wastewater Treatment Plant, Huangshan | Serving 210,000 in Anhui Province

The Anhui wastewater treatment plant is located in Huangshan City, Anhui Province, China, serving an estimated population of 210,000. The plant is situated in the historic She County area, near the scenic Huangshan mountain range, a UNESCO World Heritage site known for its natural beauty. As a large agglomeration serving over 150,000 people, the plant is expected to meet China's national discharge standards, which require secondary treatment or higher for urban wastewater. Typical plants of this scale in China employ activated sludge processes with nutrient removal to comply with Class 1A or 1B standards under the GB 18918-2002 regulation. The treated effluent likely discharges into local waterways that flow into the Xin'an River system, which eventually reaches the Qiantang River and Hangzhou Bay in the East China Sea. The plant plays a critical role in protecting the downstream aquatic environment, including the ecologically sensitive Huangshan region, which supports diverse flora and fauna.

The plant's receiving water body is part of the Xin'an River basin, which drains into the Qiantang River and ultimately the East China Sea. This watershed supports important aquatic ecosystems and provides water for agriculture and drinking. The downstream area includes Hangzhou Bay, a major estuary with significant ecological and economic value. Protecting water quality in this basin is essential for maintaining biodiversity and supporting local communities.