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陕西黄河化工厂利用煤矸石生产出价格低廉的新型高效净水剂──聚碱式氯化铝。这种净水剂由专用生产线生产，每吨可净化各类浑浊水源10至25万t。陕西用煤矸石生产净水剂
Shaanxi Yellow River Chemical Plant to use coal gangue to produce low-cost new efficient water purification agent ─ ─ polybasic aluminum chloride. This water purification agent produced by a dedicated production line, each ton can purify all kinds of muddy water 10 to 25 million t. Shaanxi coal gangue production of water purification agent