Overview
Heilongjiang wastewater treatment plant serves Zhaoyuan Town, Daqing, Heilongjiang, China, with a population equivalent of 62,800. The plant operates under China's national wastewater discharge standards.
The Heilongjiang wastewater treatment plant is located in Zhaoyuan Town, Daqing City, Heilongjiang Province, China. It serves a population equivalent of 62,800, placing it in the medium agglomeration category for Chinese municipal wastewater infrastructure. As a Chinese municipal plant, it is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for COD, BOD, ammonia nitrogen, and total phosphorus. For agglomerations of this scale, secondary biological treatment with nutrient removal is typically required to meet Class 1A or 1B standards, depending on the receiving water's sensitivity. The plant's treated effluent likely discharges into local waterways that drain into the Songhua River basin, a major tributary of the Amur River system. The Songhua River supports diverse aquatic life and provides water for agriculture and industry downstream. Proper treatment is critical to prevent eutrophication and protect the ecological health of the river and its floodplain wetlands.
Environmental context
The plant is situated in the Songhua River basin, which flows northeast into the Amur River and ultimately to the Sea of Okhotsk. The Songhua River is a vital water source for northeastern China, supporting irrigation, fisheries, and industrial use. Downstream ecosystems include floodplain wetlands and riparian habitats that rely on good water quality. Effective nutrient removal at the plant helps prevent algal blooms and maintains the ecological balance of this important river system.
Frequently asked questions
The plant is located in Zhaoyuan Town, Daqing City, Heilongjiang Province, China, near the village of Xielitun in Youyi Village.
The plant serves a population equivalent of 62,800, classifying it as a medium-sized municipal wastewater treatment facility.
The plant must comply with China's GB 18918-2002 standard, which sets limits on pollutants like COD, BOD, ammonia nitrogen, and phosphorus. For plants of this scale, secondary treatment with nutrient removal is typical.
The treated effluent likely discharges into local streams that flow into the Songhua River, a major tributary of the Amur River system, which drains to the Sea of Okhotsk.
The plant operates under China's national wastewater discharge standards (GB 18918-2002), enforced by local environmental protection bureaus. For medium agglomerations, secondary biological treatment with nutrient removal is required to protect receiving waters.
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