Application of Box-Wilson experimental design method for the photodegradation of bakery's yeast industry with UV/H2O2 and UV/H2O2/Fe(II) process

被引：40
作者：
Çatalkaya, EC [1 ]
Sengül, F [1 ]
机构：
[1] Dokuz Eylul Univ, Dept Environm Engn, Izmir, Turkey
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2006年 / 128卷 / 2-3期
关键词：
bakery's yeast industry; Box-Wilson design; decolorization; Photo-Fenton process; UV/H2O2; process;
D O I：
10.1016/j.jhazmat.2005.07.052
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Decolorization and mineralization of bakery's yeast industry effluent by photochemical advanced oxidation processes (AOPs) utilizing UV with hydrogen peroxide and Photo-Fenton, were investigated in a laboratory scale photo-reactor equipped with a 16W low-pressure mercury vapor lamp. The Box-Wilson experimental design method was employed to evaluate the effects of major process variables (e.g. pH, oxidant dose, and irradiation time) on the decolorization efficiency. Response function coefficients were determined by regression analysis of the experimental data and prediction results agreed with the experimental results. The optimum hydrogen peroxide concentration and irradiation time were found to be 5 mM and 50 min at pH 3, respectively, for UV/H2O2 process. In the Photo-Fenton process application, maximum decolorization efficiency (96.4%) was obtained at the optimum reaction conditions that were 100 mM H2O2 and 1 mM Fe(II) doses at pH 3, and 10 min of irradiation time. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：201 / 207
页数：7
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