Optimization of electrochemical treatment of industrial paint wastewater with response surface methodology

被引：157

作者：

Koerbahti, Bahadir K.

Aktas, Nahit

Tanyolac, Abdurrahman ^{[1
]}

机构：

[1] Hacettepe Univ, Dept Chem Engn, Fac Engn, TR-06800 Ankara, Turkey

[2] Univ Mersin, Dept Chem Engn, Fac Engn, TR-33343 Ciftlikkoy, Mersin, Turkey

[3] Yuzuncu Yil Univ, Dept Chem Engn, Engn & Architecture Fac, TR-65080 Van, Turkey

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 148卷 / 1-2期

关键词：

electrochemical wastewater treatment; paint wastewater; graphite electrodes; statistical experiment design; response surface methodology; NaCl electrolyte;

D O I：

10.1016/j.jhazmat.2007.02.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The electrochemical oxidation of water-based paint wastewater was investigated batch-wise in the presence of NaCl electrolyte with carbon electrodes for the first time in literature. The electrochemical treatment conditions were optimized using response surface methodology where potential difference, reaction temperature and electrolyte concentration were to be minimized while chemical oxygen demand (COD), color and turbidity removal percents and initial COD removal rate were maximized at 100% pollution load. The optimum conditions were satisfied at 35 g/L external electrolyte concentration, 30 degrees C reaction temperature and 8 V potential difference (64.37 mA/cm(2) current density) realizing 51.8% COD and complete color and turbidity removals, and 3010.74 mg/L h initial COD removal rate. According to these results, the electrochemical method could be a strong alterative to conventional physicochemical methods for the treatment of water-based paint wastewater. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：83 / 90

页数：8

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