A comparative study on the removal of phenol from aqueous solutions by electro-Fenton and electro-persulfate processes using iron electrodes

被引：34
|
作者：
Rahmani, Ali Reza [1 ,2 ]
Rezaeivahidian, Hadi [3 ]
Almasi, Mohammad [4 ]
Shabanlo, Amir [1 ,2 ]
Almasi, Halime [1 ,2 ]
机构：
[1] Hamadan Univ Med Sci, Dept Environm Hlth Engn, Fac Hlth, POB 4171, Hamadan, Iran
[2] Hamadan Univ Med Sci, Res Ctr Hlth Sci, POB 4171, Hamadan, Iran
[3] Malek Ashtar Univ Technol, Dept Chem & Chem Engn, Tehran, Iran
[4] Islamic Azad Univ, Dept Chem, Coll Sci, Ahvaz Branch, Ahvaz, Iran
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2016年 / 42卷 / 02期
关键词：
Electro-Fenton; Electro-persulfate; Phenol removal; Oxidation process; ADVANCED OXIDATION; WASTE-WATER; DEGRADATION; ACID; OZONATION; 2,4-DICHLOROPHENOL; OPTIMIZATION; UV;
D O I：
10.1007/s11164-015-2095-1
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study examined the removal of phenol from aqueous solutions through electro-Fenton and electro-persulfate processes using iron electrodes. The effect of operational parameters such as initial pH, current density, initial concentration of phenol, hydrogen peroxide dose, and persulfate (PS) concentration on the removal of phenol were investigated. The results showed that the efficiency of phenol removal was directly related to the initial concentrations of hydrogen peroxide and PS, and was inversely correlated with a highly alkaline pH and elevated concentration of phenol. The efficiency of phenol removal was significantly increased by increasing PS and H2O2 concentrations from 0.1 to 0.4 mM, but there was little influence on removal efficiency with greater quantities of PS and H2O2. Ultimately, phenol was almost completely removed after 45 min in both processes.
引用
收藏
页码：1441 / 1450
页数：10
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