...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of the Chemical Society of Japan >Flotation-Separation of Chromium(VI) and Chromium(III) from Water and Leathers Tanning Waste Using Active Charcoal and Oleic Acid Surfactant
【24h】

Flotation-Separation of Chromium(VI) and Chromium(III) from Water and Leathers Tanning Waste Using Active Charcoal and Oleic Acid Surfactant

机译：用活性炭和油酸表面活性剂浮选分离水和皮革鞣革废料中的六价铬和三价铬

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An experimental procedure is presented for the separation of Cr(VI) and Cr(III) from aqueous solutions, natural water and leather tanning waste using powdered active charcoal (PACh) as an adsorbent and oleic acid (HOL) as a surfactant. Several parameters (namely: the initial concentrations of surfactant and active charcoal pH value, ionic strength, shaking time, temperature and foreign ions) that influence the separation process were studied. Good results were obtained, according to which more than 98% of Cr(VI) at pH 2.0 or Cr(III) at pH 7.5 were removed. The selective separation of Cr(VI) from Cr(III) was also examined, since the system Cr(III)/Cr(VI) is toxic, and occurs in industrial effluents and some surface wates. The procedure may find analytical applications for speciation studies. Moreover, a flotation mechanism is suggested.
机译：提出了使用粉末状活性炭（PACh）作为吸附剂和油酸（HOL）作为表面活性剂从水溶液，天然水和皮革鞣革废料中分离Cr（VI）和Cr（III）的实验程序。研究了影响分离过程的几个参数（即表面活性剂的初始浓度和活性炭的pH值，离子强度，振荡时间，温度和外来离子）。获得了良好的结果，根据该结果，去除了pH值为2.0时超过98％的Cr（VI）或pH值为7.5时的Cr（III）。由于Cr（III）/ Cr（VI）体系有毒，并存在于工业废水和某些表面废水中，因此还检查了Cr（VI）与Cr（III）的选择性分离。该程序可以为物种研究找到分析应用。此外，提出了一种浮选机理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号