Overview
Hunan wastewater treatment plant serves Changde City in Hunan Province, China, with a population equivalent of 176,200. The facility discharges into local waterways within the Dongting Lake basin.
The Hunan wastewater treatment plant is located in Longyang Subdistrict, Hanshou County, Changde City, Hunan Province, China. It serves a population equivalent of approximately 176,200, classifying it as a medium-to-large agglomeration under Chinese wastewater management standards. The plant is situated inland, away from coastal areas, and its operations are part of the municipal infrastructure for the region. As a facility serving over 100,000 people, it falls under China's national wastewater discharge standards, which require secondary treatment as a minimum. The plant likely employs conventional activated sludge or similar biological treatment processes, common for plants of this scale in China. Compliance with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) is expected, which sets limits for COD, BOD, ammonia nitrogen, and other parameters. The treated effluent is discharged into local rivers that flow into Dongting Lake, a major freshwater lake in the Yangtze River basin. Dongting Lake plays a crucial ecological role, supporting diverse aquatic life and serving as a flood storage area. The plant's performance directly affects water quality in this sensitive lake ecosystem and downstream reaches of the Yangtze River.
Environmental context
The plant discharges into tributaries of the Yuan River, which flows into Dongting Lake, the second-largest freshwater lake in China. Dongting Lake is a critical wetland that supports migratory birds, fish spawning, and water purification. The lake connects to the Yangtze River, ultimately draining into the East China Sea. The region experiences a subtropical monsoon climate with seasonal flooding, making effective wastewater treatment essential to prevent eutrophication and protect aquatic biodiversity in the lake and downstream ecosystems.
Frequently asked questions
The plant is located in Longyang Subdistrict, Hanshou County, Changde City, Hunan Province, China.
The plant serves a population equivalent of approximately 176,200 people.
The treated effluent is discharged into local rivers that flow into Dongting Lake, part of the Yangtze River basin.
The plant must comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits on pollutants like COD, BOD, and ammonia nitrogen. Secondary treatment is typically required for plants of this scale.
Dongting Lake is a major freshwater lake and wetland that supports diverse aquatic life and migratory birds. The plant's discharge quality directly affects the lake's water quality and the health of downstream ecosystems in the Yangtze River.
Nearby plants