OXIDATIVE DEGRADATION OF 2-CHLOROPHENOL BY PERSULFATE

被引：7

作者：

Kusmierek, Krzysztof ^{[1
]}

Swiatkowski, Andrzej ^{[1
]}

Dabek, Lidia ^{[2
]}

机构：

[1] Mil Univ Technol, Inst Chem, Kaliskiego 2, PL-00908 Warsaw, Poland

[2] Kielce Univ Technol, Fac Environm Engn Geomat & Power Engn, PL-25314 Kielce, Poland

来源：

JOURNAL OF ECOLOGICAL ENGINEERING | 2015年 / 16卷 / 03期

关键词：

chlorophenol; oxidation; persulfate;

D O I：

10.12911/22998993/2944

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of 2-chlorophenol (2-CP) by persulfate was investigated. The kinetics of persulfate oxidation of 2-chlorophenol in aqueous solutions at various pH, oxidant concentration, temperature, Fe2+ and Cu2+ ions content was studied. Maximum of 2-CP degradation occurred at pH 8. The oxidation rate of 2-CP increased with increasing the persulfate molar excess. The degradation process was significantly influenced by temperature - the higher temperature results in a faster degradation of 2-CP. The activation of persulfate by ferrous and copper ions was also studied. Results showed that persulfate is activated more effectively by iron(II) than copper(II) ions. A comparison of different persulfate activation methods revealed that heat-activation was the most effective. Under optimal conditions, in the presence of ferrous ions at 50 degrees C, complete degradation of 2-chlorophenol was achieved after about 30 minutes.

引用

页码：115 / 123

页数：9

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