Overview
Heilongjiang wastewater treatment plant serves Muling City in Heilongjiang, China, with a population equivalent of 91,300. The facility is located inland, over 50 km from the coast, and its discharge supports local water quality management.
The Heilongjiang wastewater treatment plant is situated in Muling City, within the Mudanjiang prefecture of Heilongjiang Province, China. Serving a population equivalent of 91,300, the plant is a medium-to-large agglomeration under Chinese wastewater regulations, which mandate secondary treatment for urban facilities of this scale. As a municipal treatment plant in northeastern China, it operates under the national Water Pollution Prevention and Control Law, which sets effluent standards for conventional pollutants. Facilities of this size typically employ biological treatment processes such as activated sludge to meet Class 1A or 1B discharge standards. The plant discharges treated effluent into local waterways that eventually drain into the Songhua River basin, a major tributary of the Amur River (Heilongjiang). The receiving waters support agricultural irrigation and aquatic ecosystems, making effective treatment essential for protecting downstream water quality and biodiversity in the region.
Environmental context
The plant's treated effluent flows into the Mudan River system, a tributary of the Songhua River, which ultimately joins the Amur River (Heilongjiang) before reaching the Sea of Okhotsk. The watershed supports diverse aquatic life and is an important resource for agriculture and fisheries in northeastern China. Effective nutrient removal is critical to prevent eutrophication in downstream lakes and reservoirs.
Frequently asked questions
The plant is located in Muling City, Mudanjiang prefecture, Heilongjiang Province, China.
The plant serves a population equivalent of 91,300 people.
The treated effluent is discharged into local waterways that flow into the Mudan River, part of the Songhua River basin.
The plant operates under China's Water Pollution Prevention and Control Law, which sets discharge standards for municipal wastewater. Facilities of this scale typically require secondary treatment and compliance with national effluent limits.
Plants of this size in China commonly use biological treatment processes like activated sludge, often with nutrient removal, to meet Class 1A or 1B discharge standards.
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