Overview
Tianjin wastewater treatment plant serves approximately 860,000 people in Xiqing District, Tianjin, China. It operates under China's national wastewater discharge standards.
The Tianjin wastewater treatment plant is located in Xiqing District, a suburban area of the municipality of Tianjin, China. It serves a population of approximately 860,000, classifying it as a large-scale municipal facility. The plant is situated inland, more than 50 km from the coast, and its treated effluent likely discharges into local waterways that eventually reach the Bohai Sea. As a large agglomeration in China, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment with nutrient removal for plants of this scale. The standard also sets limits for COD, BOD, ammonia nitrogen, and total phosphorus, with stricter requirements for plants discharging into sensitive water bodies. Given its location in the Hai River basin, treated effluent likely flows into the Hai River system, which drains into the Bohai Sea. The Bohai Sea is a semi-enclosed marginal sea with significant ecological importance, supporting fisheries and marine biodiversity. Proper treatment is critical to prevent eutrophication and protect coastal ecosystems.
Environmental context
The plant is located in the Hai River basin, a major water system in northern China. Treated wastewater likely discharges into the Hai River or its tributaries, which flow into the Bohai Sea. The Bohai Sea is a semi-enclosed sea with limited water exchange, making it vulnerable to nutrient pollution. The region supports important fisheries and migratory bird habitats, so effective nutrient removal is essential to prevent algal blooms and hypoxia.
Frequently asked questions
The plant is located in Xiqing District, Tianjin, China, specifically on Haitai North Road in Zhangjiawo Town.
The plant serves approximately 860,000 people, making it a large-scale 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 requires secondary treatment with nutrient removal for large agglomerations.
For plants of this scale, Chinese standards mandate secondary biological treatment with nitrogen and phosphorus removal, often using activated sludge processes or similar technologies.
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