Application of steel waste with UV/H2O2 to mineralize 2-naphthalenesulfonate in aqueous solution

被引：26

作者：

Chiou, Chyow-San ^{[1
]}

机构：

[1] Natl ILan Univ, Dept Environm Engn, Ilan 260, Taiwan

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2007年 / 55卷 / 01期

关键词：

photo-fenton; mineralization; basic oxygen furnace slag; UV/H2O2; 2-naphthalenesulfonate;

D O I：

10.1016/j.seppur.2006.11.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study evaluated the performance of photo-Fenton reaction when it was initiated by using UV/H2O2 with steel waste, basic oxygen furnace slag (BOF slag), denoted as UV/H2O2/BOF slag process, to decompose 2-naphthalenesulfonate (2-NS) in the aqueous solution. The concentration of total organic carbon (TOC) was chosen as a mineralization index of the decomposition of 2-NS by the UV/H2O2/BOF slag process. A first-order kinetic model with respect to TOC was appropriately adopted to represent the mineralization of 2-NS by the UV/H2O2/BOF slag process. The experimental results of this study suggested that the dosages with 1.25 x 10(-4) mol L-1 min(-1) H2O2 and 12.5 g L-1 BOF slag loading in the solution at pH 2.5 with 120 mu W cm(-2) UV (312 nm) provided the optimal operation conditions for the mineralization of 2-NS yielding a 56% mineralization efficiency after 90 min of reaction time. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：110 / 116

页数：7

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