Hunan Wastewater Treatment Plant, Xintian County, Hunan Province, China

The Hunan wastewater treatment plant is located in Xintian County, Yongzhou City, Hunan Province, China. It serves a population of approximately 68,700, classifying it as a medium-sized municipal facility within the region's water management infrastructure. As a Chinese wastewater treatment plant, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits based on receiving water sensitivity. For plants serving populations of this scale, secondary treatment with nutrient removal is typically required to meet Class 1A or 1B standards, especially in areas with environmental sensitivity. The plant's treated effluent likely discharges into a local waterway within the Xiang River basin, which flows into Dongting Lake and eventually the Yangtze River. This downstream connection underscores the plant's role in protecting water quality in a densely populated and agriculturally active region.

The plant is situated in the Xiang River basin, a major tributary of the Yangtze River. Treated wastewater from the facility flows into local streams that feed the Xiang River, which then enters Dongting Lake, a large freshwater lake that supports diverse aquatic life and provides critical flood storage. The region's subtropical climate and intensive agriculture make nutrient management a key ecological consideration to prevent eutrophication downstream.