FOAM FRACTIONATION OF SPENT SULFITE LIQUOR .2. SEPARATION OF TOXIC COMPONENTS

被引：5

作者：

BERK, D

ZAJIC, JE

BEHIE, LA

机构：

[1] Department of Chemical Engineering, University of Calgary, Calgary, Alberta

[2] Faculty of Engineering Science, The University of Western Ontario, London

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1979年 / 57卷 / 03期

关键词：

D O I：

10.1002/cjce.5450570314

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Foam fractionation was used as a unit operation for the reduction of toxicity in spent sulphite liquor. Toxicity was measured quantitatively using a Daphnia magna bioassay. The optimum pH for the operation was 10 and no toxicity removal was possible at pH values less than 8. The maximum decrease in the toxicant concentration was 40%. The collapsed foam was very toxic to D. magna indicating that toxicants were concentrated in the foam which contained 20% of the original liquid charged to the column. A relationship between surfactant and toxicant concentration was shown to exist. Copyright © 1979 Canadian Society for Chemical Engineering

引用

页码：327 / 332

页数：6

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