Guizhou Wastewater Treatment Plant, Honghuagang District, Zunyi

The Guizhou wastewater treatment plant is located in Honghuagang District, Zunyi City, Guizhou Province, China. It serves a population of approximately 330,000, classifying it as a large-scale municipal facility within the region. The plant is situated inland, away from coastal areas, and its operations are integral to managing urban wastewater in this part of southwest China. As a large agglomeration serving over 100,000 people, the plant is expected to meet China's 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 facility likely employs conventional activated sludge or similar biological processes to achieve compliance with national effluent limits. The treated wastewater is discharged into local water bodies that ultimately flow into the Yangtze River basin, a critical water system supporting diverse aquatic life and human communities. The plant's performance directly affects downstream water quality and the ecological health of the region's rivers and lakes.

The plant discharges into local waterways that are part of the Yangtze River basin, one of China's most important river systems. The downstream environment includes rivers and lakes that support aquatic biodiversity and provide water for agriculture and drinking. Protecting these waters from nutrient pollution is essential to prevent eutrophication and maintain ecological balance in the region.