Overview
Heilongjiang wastewater treatment plant serves 31,000 people in Bajingzi Township, Daqing, Heilongjiang, China. The facility operates under China's national wastewater discharge standards.
The Heilongjiang wastewater treatment plant is located in Bajingzi Township, part of Datong District in Daqing City, Heilongjiang Province, China. Serving a population of approximately 31,000, this facility is a key component of the region's municipal wastewater infrastructure, handling domestic sewage from the local community. As a plant serving a medium-sized agglomeration, it is expected to comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). This national regulation sets effluent limits for conventional pollutants and nutrients, with requirements varying by discharge zone. Typical facilities of this scale employ biological treatment methods such as activated sludge or sequencing batch reactors to meet Class 1A or 1B standards. The treated effluent is discharged into local water bodies that ultimately drain into the Songhua River basin, a major tributary of the Amur River system. This watershed supports diverse aquatic life and provides water for agricultural and industrial use downstream. Proper treatment is essential to protect water quality in this ecologically significant region.
Environmental context
The plant's discharge enters the Songhua River basin, which flows northeast into the Amur River and eventually reaches the Sea of Okhotsk. This watershed supports important fisheries and provides drinking water for millions. The region experiences cold winters, requiring robust treatment processes to maintain performance under low temperatures. Protecting this river system from nutrient pollution and pathogens is critical for downstream ecological health.
Frequently asked questions
The Heilongjiang wastewater treatment plant is located in Bajingzi Township, Datong District, Daqing City, Heilongjiang Province, China.
The plant serves approximately 31,000 people in the Bajingzi area.
The treated effluent is discharged into local waterways that flow into the Songhua River basin, part of the larger Amur River system.
The plant must comply with China's national standard GB 18918-2002, which sets discharge limits for pollutants based on the receiving water's sensitivity. For plants serving over 10,000 people, secondary treatment with nutrient removal is typically required.
For a medium-sized agglomeration like this, Chinese regulations generally mandate secondary biological treatment with phosphorus and nitrogen removal to meet Class 1A or 1B standards, depending on the discharge zone.
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