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Treatment of chemical fiber wastewater with emulsion liquid membrane
Author(s): Xie Hengshen, Zhao Xiaoqian
Pages: 3714-
3720
Year: 2015
Issue:
8
Journal: Chinese Journal of Environmental Engineering
Keyword: emulsion liquid membrane ; chemical fiber wastewater; surfactant ; COD;
Abstract: 为了去除工业化纤废水中的水溶性污染物,采用混合型乳化液膜法对废水样品进行了处理,以紫外吸收值和COD去除率为指标.结果表明,不同的表面活性剂、废水浓度、反应时间、液膜组成及处理工艺(包括内相酸浓度、油水比、乳水比)等对处理效果都会产生影响;其中T-152是最合适的表面活性剂,当体系pH =4,油内比为1∶1,乳水比为1∶3,废水初始COD为1 000 mg/L左右,表面活性剂的量:溶剂煤油的量:膜固定剂(TOA)三者体积比为5∶25 000∶1时,搅拌处理30 min,废水中紫外吸收光谱的最强吸收峰红移且峰强减小,COD的去除率达到96.5%,出水COD小于100 mg/L;处理后,废水的色度和浊度均得到显著降低,去除率达到98%以上,达到了排放要求.
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