Overview
Hebei wastewater treatment plant serves 70,000 people in Dongguang County, Cangzhou, Hebei, China. It operates under China's national wastewater standards for medium-sized agglomerations.
The Hebei wastewater treatment plant is located in Dongguang County, Cangzhou City, Hebei Province, China. It serves a population of approximately 70,000, classifying it as a medium-sized municipal facility within the region's water infrastructure network. China's wastewater treatment standards, governed by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), require secondary treatment as a baseline for plants of this scale. For sensitive water bodies, tertiary treatment may be mandated. Typical facilities in Hebei employ biological treatment methods such as activated sludge or A2O processes. The plant discharges treated effluent into local waterways that ultimately drain into the Bohai Sea via the Hai River system. This coastal connection underscores the importance of effective nutrient removal to protect marine water quality. The facility plays a key role in reducing pollution loads from urban and industrial sources in the Cangzhou area.
Environmental context
The plant's treated effluent enters the Hai River basin, which flows through Hebei Province and discharges into the Bohai Sea. The Bohai Sea is a semi-enclosed marginal sea with limited water exchange, making it sensitive to nutrient loading from upstream sources. Effective wastewater treatment is critical to prevent eutrophication and protect coastal ecosystems, including fisheries and migratory bird habitats along the Yellow Sea-Bohai Gulf flyway.
Frequently asked questions
The plant is located in Dongguang County, Cangzhou City, Hebei Province, China.
The plant serves approximately 70,000 people, making it a medium-sized municipal facility.
The treated effluent is discharged into local waterways within the Hai River basin, which ultimately flows into the Bohai Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for pollutants like COD, BOD, and nutrients.
For medium-sized agglomerations in China, secondary biological treatment (e. g. , activated sludge) is standard. In environmentally sensitive areas, tertiary treatment for nitrogen and phosphorus removal may be required.
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