Overview
Henan wastewater treatment plant serves Lankao County in Henan Province, China, with a population of 77,000. It operates under China's national wastewater discharge standards.
The Henan wastewater treatment plant is located in Tongxiang Subdistrict, Lankao County, Kaifeng City, Henan Province, China. It serves a population of approximately 77,000 people, classifying it as a medium-sized municipal facility within the region. As a Chinese wastewater treatment plant, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for conventional pollutants and nutrients. For a plant of this scale, 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 treated effluent is discharged into local waterways that ultimately drain into the Yellow River basin, a major river system in northern China. The Yellow River supports extensive agricultural irrigation and provides drinking water for millions, making proper wastewater treatment critical for downstream water quality and ecosystem health.
Environmental context
The plant discharges into tributaries of the Yellow River, which flows through Henan Province and eventually reaches the Bohai Sea. The Yellow River basin is ecologically significant, supporting diverse aquatic life and providing water for agriculture and urban use. Effective treatment helps reduce nutrient loading and protects downstream water quality in this heavily utilized river system.
Frequently asked questions
The plant is located in Tongxiang Subdistrict, Lankao County, Kaifeng City, Henan Province, China.
The plant serves approximately 77,000 people in the Lankao County area.
The plant discharges into local waterways that are part of the Yellow River basin, helping to protect the Yellow River and its downstream ecosystems.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. For a plant serving 77,000 people, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards.
Plants of this scale in China generally employ secondary biological treatment processes such as activated sludge, often with additional nutrient removal (nitrogen and phosphorus) to comply with stringent effluent standards for sensitive water bodies.
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