Application of statistical experimental design to the treatment of bleaching kraft mill effluent using a mediated free radical system

被引：8

作者：

Arantes, V. ^{[1
]}

Milagres, A. M. F. ^{[1
]}

机构：

[1] Univ Sao Paulo, Escola Engn Lorena, Dept Biotechnol, BR-12600970 Lorena, SP, Brazil

来源：

WATER SCIENCE AND TECHNOLOGY | 2007年 / 55卷 / 06期

关键词：

bleaching kraft effluent; central composite design; chelator mediated-Fenton reaction; COD; response surface methodology;

D O I：

10.2166/wst.2007.205

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this work was to evaluate the effect of chelator mediated-Fenton reaction (CMFR) on the chemical oxygen demand (COD) removal from bleaching kraft mill effluent. Effluent treatments were carried out to study the effect of the chelator 3, 4-dihydroxyphenylacetic acid (DOPAC), Fe3+ and H2O2 concentrations on COD removal. For optimization of COD removal, the methodology of statistical experimental design was employed. The estimated second-order polynomial multiple regression model predicts a maximum COD removal of 75.5% (COD/CODD) = 0.245) at the confidence level of 95%. Analysis of variance (ANOVA) showed a good coefficient of determination (R-2) value of 0.90, thus ensuring a satisfactory adjustment of the second-order regression model with the experimental data. Indeed, CMFR proved to be a potential process to treat industrial effluents characterized by its high COD.

引用

页码：1 / 7

页数：7

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