Shandong Wastewater Treatment Plant, Linyi, Shandong Province, China

The Shandong wastewater treatment plant is located in Tancheng County, Linyi City, Shandong Province, China. It serves a population equivalent of 180,000, classifying it as a large agglomeration under Chinese wastewater management standards. The plant is situated inland, more than 50 km from the coast, and its operations are part of the broader municipal infrastructure for the region. China's wastewater treatment regulations require secondary treatment for urban plants, with advanced treatment increasingly mandated in sensitive watersheds. For a plant serving 180,000 people, typical processes include activated sludge or biological nutrient removal to meet national discharge standards. It operates under China's national discharge standards (GB 18918-2002) which set limits for COD, BOD, ammonia nitrogen, and phosphorus. The treated effluent is likely discharged into a local river within the Huai River basin, which ultimately flows into the Yellow Sea. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in this densely populated agricultural region.

The plant discharges into a tributary of the Huai River system, which flows eastward into the Yellow Sea. The Huai River basin supports diverse aquatic life and is a critical water resource for agriculture and industry in eastern China. The plant's operations help reduce nutrient and pollutant loads, mitigating eutrophication risks in downstream lakes and coastal waters.