Application of the photo-Fenton process to the treatment of wastewaters contaminated with diesel

被引：55
作者：
Galvao, Sara Amelia O.
Mota, Andr L. N.
Silva, Douglas N.
Moraes, Jose Ermirio F.
Nascimento, Claudio A. O.
Chiavone-Filho, Osvaldo
机构：
[1] Univ Fed Rio Grande Norte, Dept Engn Quim, PPGEQ, BR-59072970 Natal, RN, Brazil
[2] Univ Sao Paulo, Escola Politecn, Dept Engn Quim, BR-05508900 Sao Paulo, Brazil
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2006年 / 367卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
degradation; diesel oil; photo-Fenton; wastewater; photochemical reactor;
D O I：
10.1016/j.scitotenv.2006.01.014
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The application of the photo-Fenton process for the treatment of wastewaters contaminated with diesel oil was investigated. This particular process has been widely studied for the photochemical degradation of highly toxic organic pollutants. Experiments were performed according to a factorial experimental design at two levels and two variables:H2O2 concentration (5-200 mM) and Fe2+ concentration (0.01-1 mM). Experimental results demonstrated that the photo-Fenton process is technically feasible for the treatment of wastewaters containing diesel oil constituents, with total mineralization. A combination of factorial experimental design and gradient descent techniques was employed to optimize the amount of the Fenton reagents, resulting in Fe2+ (0.1 MM) and H2O2 (50 mM). These optimized levels did not exceed the limit for disposal of ferrous ions (0.27 mM) proposed at the local environmental legislation. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：42 / 49
页数：8
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