Chemical degradation of EDTA and DTPA in a totally chlorine free (TCF) effluent

被引：26

作者：

Rodríguez, JB ^{[1
]}

Mutis, A ^{[1
]}

Yeber, MC ^{[1
]}

Freer, J ^{[1
]}

Baeza, J ^{[1
]}

Mansilla, HD ^{[1
]}

机构：

[1] Univ Concepcion, Lab Renewable Resources, Concepcion, Chile

来源：

WATER SCIENCE AND TECHNOLOGY | 1999年 / 40卷 / 11-12期

关键词：

AOPs; chelants; DTPA; EDTA; ozone; TCF effluent; UV;

D O I：

10.2166/wst.1999.0721

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this work, a Synthetic TCF effluent containing vanillin, glyoxal, sodium formate, sodium acetate and the chelanting agents EDTA and DTPA was treated using, O(3), O(3)/H(2)O(2), O(3)/UV, UV, UV/H(2)I(2) and UV/H(2)O(2)/O(3) at pH 7 and 11. The best results were obtained in the O(3)/UV process. Ozone alone did not degrade EDTA neither DTPA. A combined O(3)/UV (pH 7.0 by 15 min)-biological treatment was very efficient in the removal of the chelants (98%) and COD (95%). (C) 1999 Published by Elsevier Science Ltd on behalf of the IAWQ. All rights reserved.

引用

页码：267 / 272

页数：6

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