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pH对铝盐絮凝剂形态分布与混凝除氟性能的影响
  • ISSN号：1673-9108
  • 期刊名称：《环境工程学报》
  • 时间：0
  • 分类：TU991.2[建筑科学—市政工程]
  • 作者机构：[1]中国科学院生态环境研究中心环境水质学国家重点实验室
  • 相关基金：国家自然科学基金资助项目(21177143,21177144);国家水体污染控制与治理科技重大专项(2015ZX07402-003)
作者： 鞠佳伟[1], 高玉萍[1], 何赞[1], 刘锐平[1]
关键词： 氟, PACL, 碱化度, 铝形态, Ζ电位
中文摘要：

对比研究了Al Cl3和3种不同碱化度的聚合氯化铝(PACl)在不同p H与投量下除氟效果,并对不同形态铝盐除氟机理进行了初步探讨。结果表明,p H对絮凝剂水解后铝形态分布及其除氟效果有重要影响。p H 5~6时,Al3+和Al2、Al3等低聚态铝为Al Cl3主要形态,且Al Cl3更易水解生成可将溶解态氟转化为颗粒态氟的A1(OH)3,从而较PACl具有更佳除氟效果。p H】7时,PACl较Al Cl3具有更佳除氟效果,且增大PACl碱化度可促进氟的去除,这主要是由于具有较高Al13含量的PACl更容易与电负性F-结合所致;且絮凝剂混凝除氟絮体ζ电位越高,越利于F-在絮体表面吸附。

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期刊信息
  • 《环境工程学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院生态环境研究中心
  • 主编：曲久辉
  • 地址：北京东黄城根北街16号
  • 邮编：100017
  • 邮箱：
  • 电话：010-62941074
  • 国际标准刊号：ISSN：1673-9108
  • 国内统一刊号：ISSN：11-5591/X
  • 邮发代号:82-448
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘
  • 被引量:20083