Fenton and Fenton-like reaction followed by hydroxide precipitation in the removal of Ni(II) from NiEDTA wastewater: A comparative study

被引：88

作者：

Fu, Fenglian ^{[1
]}

Wang, Qi ^{[2
]}

Tang, Bing ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Guangdong Univ Technol, Fac Appl Math, Guangzhou 510006, Guangdong, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 155卷 / 03期

关键词：

NiEDTA wastewater; FR-HP process; Fenton reaction; Fenton-like reaction; HYDROGEN-PEROXIDE; AQUEOUS-SOLUTION; DEGRADATION; OXIDATION; EDTA; DYES; IRRADIATION; COMPLEXES; KINETICS; REAGENT;

D O I：

10.1016/j.cej.2009.09.021

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

It is difficult to remove Ni(II) from NiEDTA wastewater by many conventional processes. A new method for removing Ni(II) from NiEDTA wastewater by Fenton and Fenton-like reaction followed by hydroxide precipitation presents an important breakthrough. This treatment process is referred to as Fenton/Fenton-like reaction-hydroxide precipitation (FR-HP) process. This study investigated the use of FR-HP process for the removal of Ni(II) from NiEDTA complex wastewater. The removal efficiency of Ni(II) by FR-HP process was investigated and the kinetics of the two processes was studied. Results indicated that the removal efficiency was strongly dependent on the initial concentration of Fe2+ or Fe3+ and H2O2, initial and precipitation pH and temperature. Both FR-HP processes can effectively remove Ni(II). At optimal operation conditions, the removal efficiency of Ni(II) were 92.8% and 94.7% for Fenton and Fenton-like systems after 60 min, respectively. FR-HP process seems to be an economically and environmentally friendly process to remove the metal from metal-EDTA wastewater. Hopefully, FR-HP process will promote the development of metal-EDTA treatment technology. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：769 / 774

页数：6

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