CIESC Journal

• 化工学报 • 上一篇    下一篇

泡沫分离技术的实验研究——回收废液中的金

陈树晖,褚家瑛,江体乾   

  1. 华东化工学院,华东化工学院,华东化工学院 上海200237 ,上海200237 ,上海200237
  • 出版日期:1991-12-25 发布日期:1991-12-25

Foam Fractionation for Recovery of Gold (Ⅲ) from Electroplating Wastewater

Chen Shuhui, Chu Jiaying and Jiang Tiqian (East China Institute of Chemical Technology, Shanghai 200237)   

  • Online:1991-12-25 Published:1991-12-25

摘要: <正>泡沫分离是一种新的分离技术,在国外研究工作已取得了不少成果.Jorne和Rubin在研究金属离子泡沫分离的基础上,提出的Goug chapman扩散双电层理论,阐述了利用相反电荷的金属离子与表面活性剂离子之间的静电吸引作用,达到金属离子的泡沫分离.Rubin和Lapp、Charewicz和Grives等人通过对泡沫分离金属离子的研究表明:pH值是一个重要的影响因素.同时,离子强度可以改变表面活性剂的选择性.Bruner和Stephan采用泡沫分离方法脱除洗涤剂厂排放的一级及二级污水中的表面活性剂,试验结果表明:塔式泡沫分离装置比槽式装置有更高的脱除率.

Abstract: In this paper, the recovery of gold(Ⅲ)from electroplating wastewater with surfactant cetyl trimethyl ammonium bromide by foam fractionation is discussed. The adsorption equilibrium equation was estimated by flow method. The effects on the efficiency of separation of various operating parameters, such as feed concentration, gas to feed ratio, reflux, feed rate and pH of the feed were studied. Consequently, the optimal operating condition of the system was Obtained.