Optimization of lead removal by electrocoagulation from aqueous solution using response surface methodology

被引：10
作者：
Assadi, Ali [1 ]
Fazli, Mehran Mohammadian [1 ]
Emamjomeh, Mohammad Mehdi [2 ]
Ghasemi, Maryam [1 ]
机构：
[1] Zanjan Univ Med Sci, Dept Environm Hlth Engn, POB 4515713656, Zanjan, Iran
[2] Qazvin Univ Med Sci, Dept Environm Hlth Engn, POB 5981134197, Qazvin, Iran
来源：
DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 20期
关键词：
Aluminum electrode; Lead removal; Electrocoagulation; Response surface methodology; BLUE; 19; DECOLORIZATION; HEAVY-METAL IONS; WASTE-WATER; ARSENIC REMOVAL; ALUMINUM; WASTEWATERS; ELECTRODE; IRON;
D O I：
10.1080/19443994.2015.1029529
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Lead removal from aqueous media continues to be an important environmental issue. In this study, a batch system for lead removal from polluted water via electrocoagulation (EC) using an aluminum electrode was evaluated. Box-Behnken design for response surface methodology was applied for modeling and optimizing the effects of main operational variables such as current density, initial pH, and initial lead concentration. According to the ANOVA results, current density and lead concentration have a linear effect, while the pH has a quadratic effect on lead removal efficiency. The high R-2 value of 94.12% obtained showed that the experimental data and model predictions agreed well. A removal efficiency of 94% was predicted by the model using the following optimal parameter values: current density of 33A/m(2), pH of 7.25, and lead concentration of 5mg/L. The results showed that EC is an efficient method for lead removal from aqueous solution.
引用
收藏
页码：9375 / 9382
页数：8
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