Active iron bound to SOM catalyzes the oxidization of alkanes in soil by H2 O2

Environmental Science. Processes & Impacts
Jinlan XuChengwei Yang

Abstract

To explore the oxidation effects and mechanisms for the oxidation of alkanes by H2O2 in a Fenton system catalyzed by two types of iron bound to soil organic matter (Fe-SOM) in crude oil-contaminated soil, an oxidation experiment was performed in active Fe-SOM and Fe-SOM systems. The results showed that the TPH removal ability of active Fe-SOM (average 0.36 g TPH/g Fe-SOM) was 2.25-fold higher than the corresponding value of Fe-SOM. Active Fe-SOM contained both -NH2 and -OH functional groups, and had a higher content of iron with high binding energy, while Fe-SOM only contained -NH2 groups. Thus, a large yield of hydroxyl radicals (·OH) was generated (8.92 a.u.) by active Fe-SOM catalyzing the decomposition of H2O2, while the corresponding yield of ·OH in the Fe-SOM system was only 4.81 a.u. In addition, the removal efficiency of C17-C23 (70%) was comparable to that of C24-C30 (69%), not restricted by the hydrophobicity of different alkanes. The alkane removal by active Fe-SOM was higher than that by Fe-SOM, although the content of Fe-SOM was double that of active Fe-SOM. In summary, the active Fe-SOM formed in the soil sample containing humic acid-like and hydrophobic acid derivates could catalyze H2O2 decomposition to improve ...Continue Reading

References

Oct 28, 1999·Journal of Hazardous Materials·R J WattsA L Teel
Dec 20, 2005·Journal of Hazardous Materials·Hui ZhangJiayong Zhou
Nov 23, 2006·Journal of Hazardous Materials·Hong-Wen Sun, Qi-She Yan
Jul 20, 2007·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·David ContrerasWolfgang Kaim
Sep 7, 2007·Journal of Hazardous Materials·Abraham Northup, Daniel Cassidy
Jul 8, 2008·Journal of Hazardous Materials·Arturo RomeroFernando Vicente
Aug 14, 2009·Environmental Science & Technology·Lei ZhaoXuedong Zhai
Jan 8, 2010·Journal of Hazardous Materials·Ta-Chen LinSheng-Shung Cheng
May 17, 2011·Chemosphere·Jinlan XuTim Grotenhuis
Sep 2, 2011·Chemical & Pharmaceutical Bulletin·Katsuki OhtaMitsuhiro Yoshimatsu
May 7, 2014·Environmental Science and Pollution Research International·A R LaijuP V Nidheesh
Mar 31, 2017·Environmental Science & Technology·Xiaojing HouLizhi Zhang

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Methods Mentioned

BETA
X-ray

Software Mentioned

3DEEM
XPSPEAK41
SPSS

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