Overview
Liaoning wastewater treatment plant serves Haicheng, Liaoning, China, with a population of 230,000. It operates under China's national wastewater standards for medium-to-large agglomerations.
The Liaoning wastewater treatment plant is located in Haicheng, a city in Liaoning Province, China. It serves an estimated population of 230,000, placing it in the medium-to-large agglomeration category. The plant is situated in the urban area of Haicheng, within the broader context of China's rapidly expanding wastewater infrastructure. As a plant serving over 200,000 people, it is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment with nutrient removal for plants of this scale. The plant likely employs an activated sludge process or similar biological treatment to comply with these standards. Typical plants for this population size have capacities in the range of 60,000 to 100,000 m³/day. The treated effluent is discharged into local water bodies that ultimately drain into the Bohai Sea via the Liao River system. The plant plays a critical role in protecting downstream aquatic ecosystems and supporting water quality in the region, which is heavily industrialized and agricultural. Its operation helps reduce nutrient and pollutant loads to sensitive coastal waters.
Environmental context
The plant discharges into local rivers that are part of the Liao River basin, which flows into the Bohai Sea. The Bohai Sea is a semi-enclosed marginal sea with significant ecological importance, supporting fisheries and migratory bird habitats. The region faces challenges from industrial pollution and agricultural runoff, making the plant's nutrient removal essential for mitigating eutrophication and maintaining water quality in downstream coastal ecosystems.
Frequently asked questions
The plant is located in Haicheng, Liaoning Province, China, specifically in the Yanjun Street area of Houjiaochang.
The plant serves approximately 230,000 people, classifying it as a medium-to-large agglomeration under Chinese wastewater regulations.
Treated effluent is discharged into local rivers that are part of the Liao River basin, which ultimately flows into the Bohai Sea.
The plant must comply with China's GB 18918-2002 standard, which requires secondary treatment with nutrient removal for plants serving over 100,000 people.
Plants of this scale typically use activated sludge processes with biological nutrient removal to meet discharge standards and protect receiving waters.
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