Henan Wastewater Treatment Plant, Shangqiu, Henan, China

The Henan wastewater treatment plant is located in Shangqiu, Henan Province, China, serving a population of approximately 460,000. It is situated in the Liangyuan District, an urban area of Shangqiu, and plays a key role in managing municipal wastewater for the city. As a large-scale facility, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for conventional pollutants and nutrients. For agglomerations of this size, secondary treatment with nutrient removal is typically required, especially in sensitive watersheds. The treated effluent likely discharges into a local river or waterway within the Huai River basin, which ultimately flows into the East China Sea. The plant's operation helps protect downstream water quality and supports the ecological health of the region's aquatic environments.

The plant is located in the Huai River basin, a major watershed in eastern China that drains into the East China Sea. The receiving water body is likely a tributary of the Huai River, which supports diverse aquatic life and provides water for agriculture and industry. Proper treatment is critical to prevent eutrophication and maintain water quality in this densely populated region.