Overview
Liaoning wastewater treatment plant serves Yixian, Liaoning, China, with a population of 67,000. It operates under China's national wastewater standards for medium-sized agglomerations.
The Liaoning wastewater treatment plant is located in Yixian (义县), a county under Jinzhou city in Liaoning Province, China. The facility serves a population of approximately 67,000 people, placing it in the medium agglomeration category for Chinese wastewater infrastructure. Its location in the urban area of Yixian supports the local community's sanitation needs. As a Chinese wastewater treatment plant, the facility is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for conventional pollutants, nutrients, and pathogens. For a plant serving around 67,000 people, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water body's sensitivity. The plant's design and operation align with national policies for water pollution control in the Liao River basin. The treated effluent from the plant likely discharges into a local waterway that flows into the Daling River (大凌河), a major tributary of the Liao River system. The Liao River ultimately drains into the Bohai Sea, a semi-enclosed marginal sea of the Pacific Ocean. This watershed supports diverse aquatic life and is important for regional agriculture and fisheries, making effective wastewater treatment critical for protecting downstream water quality and ecosystem health.
Environmental context
The plant's treated effluent likely enters a tributary of the Daling River, which flows into the Liao River system and eventually reaches the Bohai Sea. The Bohai Sea is a semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution from upstream sources. Effective treatment at this plant helps reduce the load of organic matter and nutrients that could contribute to eutrophication in coastal waters, supporting the ecological health of the Liao River basin and the Bohai Sea.
Frequently asked questions
The plant is located in Yixian (义县), a county under Jinzhou city in Liaoning Province, China. Its address is in the Chenguan subdistrict, near Bianjia Hutong.
The plant serves approximately 67,000 people, classifying it as a medium-sized agglomeration under Chinese wastewater management standards.
The treated effluent is discharged into a local waterway that flows into the Daling River, a tributary of the Liao River system, which ultimately reaches 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, ammonia, and phosphorus.
For a medium-sized agglomeration in China, secondary biological treatment with nutrient removal is standard, often targeting Class 1-A or 1-B effluent standards to protect receiving waters.
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