Overview
Heilongjiang wastewater treatment plant serves 100,000 people in Hainan Korean Ethnic Township, Mudanjiang, Heilongjiang, China. It operates under China's national wastewater standards for medium-sized agglomerations.
The Heilongjiang wastewater treatment plant is located in Lagu Village, Hainan Korean Ethnic Township, within Xi'an District, Mudanjiang City, Heilongjiang Province, China. It serves a population of approximately 100,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. As a plant serving this population tier, it is expected to meet secondary treatment standards under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). The facility likely employs conventional activated sludge or similar biological processes to comply with national effluent limits for organic matter and nutrients. The plant discharges treated wastewater into local water bodies that ultimately drain into the Mudan River, a tributary of the Songhua River basin. The Songhua River flows into the Amur River (Heilongjiang) and eventually reaches the Sea of Okhotsk. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream.
Environmental context
The plant's treated effluent enters local streams that feed the Mudan River, part of the larger Songhua River basin. The Songhua River is a major waterway in Northeast China, supporting fisheries and irrigation. Downstream, the Amur River forms the border with Russia and flows into the Sea of Okhotsk, an ecologically productive marine area. The watershed is sensitive to nutrient loading and industrial pollutants, making effective treatment critical for maintaining water quality and ecosystem health.
Frequently asked questions
The plant is located in Lagu Village, Hainan Korean Ethnic Township, Xi'an District, Mudanjiang City, Heilongjiang Province, China.
The plant serves approximately 100,000 people, classifying it as a medium-to-large agglomeration.
The plant discharges into local streams that flow into the Mudan River, a tributary of the Songhua River, which ultimately reaches the Amur River and the Sea of Okhotsk.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment for plants of this scale to control organic pollutants and nutrients.
Plants of this size typically use secondary biological treatment processes such as activated sludge, sequencing batch reactors, or oxidation ditches to meet national effluent standards.
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