Overview
The Hebei wastewater treatment plant serves Zhangjiakou City, China, with a population equivalent of 118,000. It operates under China's national wastewater discharge standards, which mandate secondary treatment for urban facilities of this scale.
The Hebei wastewater treatment plant is located in Huailai County, Zhangjiakou City, Hebei Province, China. Serving a population equivalent of 118,000, it is a medium-to-large municipal facility that supports the region's urban wastewater management needs. The plant is situated in a semi-arid continental climate zone, where water resources are critical for both domestic and agricultural use. As a Chinese municipal wastewater treatment plant, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). This standard requires secondary biological treatment for urban plants, with additional nutrient removal in sensitive watersheds. For facilities serving over 100,000 people, consistent compliance with Class I-A or I-B effluent limits is expected to protect receiving water bodies. The plant's treated effluent likely discharges into the Yongding River system, part of the Hai River basin, which flows through Hebei and ultimately into the Bohai Sea. The Hai River basin is ecologically significant, supporting diverse aquatic life and providing water for irrigation and industry. Downstream, the Bohai Sea is a semi-enclosed marginal sea that faces eutrophication pressures from nutrient loading, making effective wastewater treatment crucial for coastal water quality.
Environmental context
The Hebei plant discharges into the Yongding River, a tributary of the Hai River system, which flows through Hebei Province and ultimately reaches the Bohai Sea. The Hai River basin is a densely populated agricultural and industrial region where water quality management is critical. The Bohai Sea is a semi-enclosed marginal sea with limited water exchange, making it vulnerable to nutrient enrichment and algal blooms from upstream pollution. Effective wastewater treatment at this plant helps reduce nitrogen and phosphorus loads that could otherwise contribute to eutrophication in coastal waters.
Frequently asked questions
The Hebei wastewater treatment plant is located in Huailai County, Zhangjiakou City, Hebei Province, China, near Dongcunrui West Street.
The Hebei plant serves a population equivalent of 118,000, classifying it as a medium-to-large municipal facility in China.
The Hebei plant discharges into the Yongding River, part of the Hai River basin, which flows to the Bohai Sea. It helps protect these water bodies from untreated wastewater.
The plant operates under China's GB 18918-2002 standard, which requires secondary treatment for urban plants. For facilities serving over 100,000 people, Class I-A or I-B effluent limits are typically enforced to protect sensitive water bodies.
In China, municipal plants serving around 118,000 people are expected to provide secondary biological treatment, often with nutrient removal (nitrogen and phosphorus) to meet Class I-A or I-B standards, especially in basins like the Hai River that discharge into sensitive coastal areas.
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