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Characteristics of Polyaluminum Chloride (PAC) Coagulant Prepared by Baking Process

机译:焙烧法制备的聚合氯化铝(PAC)混凝剂的特性

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摘要

One new technique was introduced preparing high-efficiency flocculant: polyaluminium chloride (PAC) with the materials of AlCl3·6H2O. Effect of preparing conditions on quality and separation of PAC was tested. The optimal preparing method was: baking temperature 290℃; baking time 30min; maturation time 18h; liquids laying aside time 12h. The structure and form of PAC was studied by scanning electron microscope (SEM), and Al13 was detected by 27Al-NMR. And the flocculating efficiency of PAC was also preliminarily examined by jar test.
机译:介绍了一种采用AlCl3·6H2O原料制备高效絮凝剂的新技术:聚氯化铝(PAC)。测试了制备条件对PAC质量和分离的影响。最佳制备方法为:烘烤温度为290℃。烘烤时间30min;成熟时间18h;液体搁置时间为12h。通过扫描电子显微镜(SEM)研究了PAC的结构和形式,并通过27Al-NMR检测了Al13。并通过罐式试验初步考察了PAC的絮凝效率。

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