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Citation
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HERO ID
2283852
Reference Type
Journal Article
Title
Impact of activation methods on persulfate oxidation of methyl tert-butyl ether
Author(s)
Deng, D; Peng, L; Guan, M; Kang, Y
Year
2014
Is Peer Reviewed?
Yes
Journal
Journal of Hazardous Materials
ISSN:
0304-3894
EISSN:
1873-3336
Volume
264
Page Numbers
521-528
Language
English
PMID
24246442
DOI
10.1016/j.jhazmat.2013.10.042
Abstract
To provide guidance on the selection of proper persulfate processes for the remediation of MTBE contaminated groundwater, MTBE aqueous solutions were treated with three common field persulfate processes including heat activated persulfate, Fe(III)-EDTA activated persulfate and alkaline persulfate, respectively. The results were compared with MTBE oxidation by Fenton's reagent and persulfate alone at 25°C. The impact of the activating conditions on the fate of MTBE and its daughter products was investigated. Heat activation at 40°C offered the most rapid removal of MTBE and its daughter products, while Fe(III)-EDTA activation showed higher efficiency of MTBE removal but low removal efficiency of its daughter products. On the other hand, alkaline persulfate showed slower kinetics for the removal of MTBE and less accumulation of the daughter products. Furthermore, tert-butyl alcohol and acetone were observed as the main purgeable daughter products along with a small amount of tert-butyl formate in persulfate oxidation of MTBE, while tert-butyl formate, tert-butyl alcohol and acetone were the main products in Fenton oxidation. Mechanistic analysis suggests that degradation of MTBE by persulfate most likely happens via non-oxygen demand pathways, different from the dominant oxygen demand degradation pathways observed in Fenton oxidation.
Tags
IRIS
•
n-Butanol
Database searches
Pubmed
•
tert-Butanol
Considered Studies
Electronic Search
•
n-Butanol
Database Searches - March 2014 (private)
Pubmed - 3/2014
Excluded (not pertinent)
Not chemical specific
•
tert-Butanol
Excluded/ Not on Topic
Other Chemical/Non-tert-butanol
•
ETBE
Database Searches
Excluded / Not on Topic
Other chemical/non ETBE studies
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