Enhanced degradation of carbon tetrachloride by sodium percarbonate activated with ferrous ion in the presence of ethyl alcohol

Environmental Technology
Ping TangQian Sui

Abstract

In this study, the degradation performance of carbon tetrachloride (CT) by sodium percarbonate (SPC) activated with Fe(II) in the presence of ethyl alcohol (EA) was investigated. The experimental results showed that CT could be readily degraded and the optimal EA/Fe(II)/SPC/CT molar ratio for CT reduction was 100/50/20/1. Superoxide radical anion ( ) and hydroxyethyl radical (•CHCH3OH, HER) were the predominant radical species responsible for CT degradation and EA could regulate the generation of and HER in the system. Further investigation for the solution matrix effects suggested that Cl-, , , and humic acid had negligible influences on CT degradation, while had negative effect in EA/Fe(II)/SPC system. On the other hand, the application of SPC/Fe(II)/EA technique is favorable to acidic condition is effective at a wide pH range of 3.0-7.0. In summary, CT degradation in Fe(II)-activated SPC system can be significantly promoted by addition of solvents, and these findings provide an innovative technology for the degradation of highly oxidized organic contaminants.

References

Jan 1, 1988·Basic Life Sciences·A A Frimer
Jan 1, 1987·International Journal of Radiation Biology and Related Studies in Physics, Chemistry, and Medicine·M S AkhlaqC von Sonntag
Aug 10, 2002·Journal of Hazardous Materials·Amy L Teel, Richard J Watts
Mar 12, 2003·Journal of Hazardous Materials·E Neyens, J Baeyens
Nov 13, 2004·Journal of Environmental Quality·Qiquan Wang, Ann T Lemley
Feb 14, 2006·The Journal of Physical Chemistry. B·Pradyumna S Singh, Dennis H Evans
Jun 1, 1995·Environmental Science & Technology·G R PeytonM H Lefaivre
May 22, 2016·Environmental Science and Pollution Research International·V RybnikovaK Hanna

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