Shandong Wastewater Treatment Plant, Qihe County, Shandong, China

The Shandong wastewater treatment plant is located in Qihe County, Dezhou, Shandong Province, China. It serves a population of approximately 140,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. The plant is situated inland, away from coastal areas, and its operations are integral to the region's water infrastructure. As a facility serving over 100,000 people, the plant is expected to meet secondary treatment standards under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). This national regulation sets effluent limits for conventional pollutants, nutrients, and pathogens, with stricter requirements for plants discharging into sensitive water bodies. Typical configurations for this scale include activated sludge systems with nutrient removal. The plant discharges treated effluent 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. Downstream, the river flows into the Bohai Sea, a semi-enclosed sea with significant ecological and economic importance. The plant's performance directly affects water quality in this critical basin.

The plant's treated effluent enters the Yellow River basin, which flows through Shandong Province and discharges into the Bohai Sea. The Yellow River is a vital water source for agriculture, industry, and domestic use in northern China. The Bohai Sea supports diverse marine life and is a key fishing ground. Protecting water quality in this basin is essential for ecosystem health and human livelihoods.