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Gansu wastewater treatment plant serves 489,000 people in Anning District, Lanzhou, Gansu Province, China. It discharges treated effluent into the Yellow River basin, supporting downstream water quality.
Gansu wastewater treatment plant serves 300,000 people in Sanzha Town, Zhangye, Gansu Province, China. It operates under national wastewater regulations for large agglomerations.