Overview
Jilin wastewater treatment plant serves Dunhua City, Jilin Province, China, with a population equivalent of 180,000. The facility operates under China's national wastewater discharge standards.
The Jilin wastewater treatment plant is located in Dunhua City (敦化市), within the Yanbian Korean Autonomous Prefecture of Jilin Province, China. It serves a population equivalent of 180,000, placing it in the large agglomeration category under Chinese regulations. The plant is situated in the Dunhua Economic Development Zone, an industrial area that influences its operational context. As a large-scale municipal facility, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which requires secondary treatment with nutrient removal for plants of this size. Typical configurations for Chinese plants of this scale include activated sludge systems with biological nitrogen and phosphorus removal. The plant discharges into local watercourses that ultimately drain into the Mudan River system, a tributary of the Songhua River basin. The Songhua River flows northeast into the Amur River (Heilongjiang), which empties into the Sea of Okhotsk. The facility plays a key role in protecting downstream aquatic ecosystems and supporting water quality in the region's agricultural and urban areas.
Environmental context
The plant's treated effluent enters local streams within the Mudan River watershed, which flows into the Songhua River basin. The Songhua River is a major tributary of the Amur River, eventually reaching the Sea of Okhotsk. This region supports diverse aquatic life, including migratory fish species, and the plant's discharge must comply with national standards to prevent eutrophication and protect downstream water quality in this ecologically sensitive basin.
Frequently asked questions
The plant is located in Dunhua City (敦化市), Jilin Province, China, within the Dunhua Economic Development Zone near the Hunchun-Aline highway.
The plant serves a population equivalent of 180,000, classifying it as a large agglomeration under Chinese wastewater regulations.
The treated effluent is discharged into local watercourses that feed into the Mudan River, part of the Songhua River basin, which ultimately flows to the Sea of Okhotsk.
The plant must comply with China's GB 18918-2002 discharge standard, which mandates secondary treatment with nutrient removal for large municipal plants.
For plants of this scale, typical treatment includes activated sludge processes with biological nitrogen and phosphorus removal, often followed by disinfection, to meet Class 1A or 1B effluent standards.
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