黄土/聚合铝铁盐基絮凝剂的制备及性能

Technology of Water Treatment(2021)

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Abstract
以煅烧黄土为原料,经FeSO4与AlCl3聚合改性制备一种生态环保型的黄土/聚合铝铁盐基絮凝剂(LPAFCS).以COD及浊度去除率为指标,采用单因素控制变量法考察了黄土煅烧温度、FeSO4/AlCl3质量比、反应温度与pH对复合絮凝剂处理污水效果的影响,并对复合絮凝剂处理生活污水的效果进行了评价.结果表明,黄土煅烧温度为600℃,m(FeSO4)/m(AlCl3)=1∶ 2,反应温度为60℃,pH = 3时制备的LPAFCS处理污水效能最佳.其对城镇生活污水各项指标去除率均高于70%,吸附次甲基蓝和苯酚废水效果良好,且成本低廉、工艺简单和绿色环保,有实际应用前景.
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