Effects of organic acid radicals on degradation of Orange II in UV-Fenton system with hydroxyl-Fe-pillared bentonite as catalyst

被引：0

作者：

Chen, Jianxin ^{[1
]}

Hu, Zhaoji ^{[1
]}

Yuan, Xuexia ^{[2
]}

Yao, Yanhong ^{[1
]}

Li, Jun ^{[1
]}

Zeng, Kaiyi ^{[1
]}

机构：

[1] Nanchang Univ, Sch Environm & Chem Engn, Nanchang 330031, Jiangxi, Peoples R China

[2] Nanchang Univ, Sch Civil Engn & Architecture, Nanchang, Jiangxi, Peoples R China

来源：

MICRO NANO DEVICES, STRUCTURE AND COMPUTING SYSTEMS | 2011年 / 159卷

基金：

中国国家自然科学基金;

关键词：

wastewater treatment; UV-Fenton; bentonite; Orange II; organic acid radical; MINERALIZATION; DISCOLORATION; SURFACES;

D O I：

10.4028/www.scientific.net/AMR.159.172

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the effects of organic acid radicals on degradation of Orange II in UV-Fenton system with hydroxyl-Fe-pillared bentonite as catalyst were studied in detail. The results showed that the rate constants of UV-Fenton reaction will decrease when the system contains sodium citrate or sodium malonate. While the rate of Orange II degradation in UV-Fenton system could increase up to 33.3% and 41.7% when EDTA and sodium oxalate were present, respectively. As the additional TOC of EDTA is higher than sodium oxalate, adding sodium oxalate is a more promising enhanced method for Orange II degradation in UV-Fenton system. The rate of Orange II degradation could increase 25%, 42% and 175% when the concentrations of additional sodium oxalate increased up to 0.1 mM, 0.2 mM and 0.4 mM, respectively.

引用

页码：172 / +

页数：2

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