Effect of metal oxides on the reactivity of persulfate/Fe(II) in the remediation of diesel-contaminated soil and sand
- Authors
- Do, Si-Hyun; Kwon, Yong-Jae; Kong, Sung-Ho
- Issue Date
- Oct-2010
- Publisher
- ELSEVIER
- Keywords
- Persulfate oxidation; Fe(II); Manganese oxide; Diesel
- Citation
- JOURNAL OF HAZARDOUS MATERIALS, v.182, no.1-3, pp.933 - 936
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF HAZARDOUS MATERIALS
- Volume
- 182
- Number
- 1-3
- Start Page
- 933
- End Page
- 936
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173661
- DOI
- 10.1016/j.jhazmat.2010.06.068
- ISSN
- 0304-3894
- Abstract
- The effect of metal oxides on the ability of persulfate (PS) with Fe(II) to remediate diesel-contaminated soil was investigated. In both natural soil and purchased sand, the highest diesel degradation occurred at pH 3 and the optimum molar ratio of PS/Fe(II) was 100:1 (i.e. 500 mM PS to 5 mM Fe(II)). Moreover, adding Fe(II) increased PS reactivity more in soil than it did in sand, indicating the involvement of metal oxides in the soil matrix. Evaluating the effects of metal oxides (i.e. goethite, hematite, magnetite, and manganese oxide) on the reactivity of PS with/without Fe(II) in a system containing diesel-contaminated sand revealed that manganese oxide increased PS activity the most and that the highest diesel degradation by PS occurred when both manganese oxide and Fe(II) were used as activators. XRD did not show the transformation of manganese oxide in the presence of Fe(II). SEM-EDS showed the association of Fe(II) on the surface of manganese oxide, and ICP analysis revealed that almost all the added Fe(II) adsorbed to manganese oxide but almost none adsorbed to iron oxides under acidic conditions. Therefore, the high reactivity of PS could be due to the high density of Fe(II) over the surface of manganese oxide.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 에너지공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173661)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.