Hunan Wastewater Treatment Plant, Jili Subdistrict, Liuyang, Hunan Province

The Hunan wastewater treatment plant is located in Jili Subdistrict, Liuyang, within Hunan Province, China. It serves a population of approximately 116,000, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater management. The plant is part of the regional infrastructure supporting urban and industrial wastewater treatment in the Liuyang area. Chinese regulations require secondary treatment for plants of this scale, with potential nutrient removal in sensitive watersheds. The plant's design capacity and operational status are not disclosed, but it is expected to comply with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for COD, BOD, ammonia nitrogen, and total phosphorus. The treated effluent likely discharges into a local waterway within the Xiang River basin, which flows into Dongting Lake and eventually the Yangtze River. The plant plays a key role in protecting downstream aquatic ecosystems and supporting water quality in the densely populated Hunan region.

The plant's treated effluent enters the local drainage network within the Xiang River basin, a major tributary of the Yangtze River. The Xiang River flows northward through Hunan Province into Dongting Lake, a large freshwater lake that regulates Yangtze flows and supports diverse aquatic life, including migratory fish and waterbirds. The region's subtropical climate and intensive agriculture make nutrient management critical to prevent eutrophication in downstream water bodies.