Arsenite Oxidation and Treatment by Ultrasound/Iron in Aqueous Solutions
- Authors
- Cui, Mingcan; Jang, Min; Lee, Seban; Kweon, Boyoun; Yun, Seong-Taek; Khim, Jeehyeong
- Issue Date
- 7월-2011
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.50, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 50
- Number
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112192
- DOI
- 10.1143/JJAP.50.07HE08
- ISSN
- 0021-4922
- Abstract
- The oxidation and treatment of arsenite [As(III)] with ultrasound (US) and Fe(II) was investigated in aqueous solutions. The oxidation of As(III) into As(V), over 99.1%, was obtained by US450kHz. The kinetics of As(III) oxidation were interpreted using the modified pseudo-first-order kinetic model. The half life of As(III) was approximately 3.47 x 10(-2) s for the US450kHz/Fe(II)(0.4mg/L) reaction and depended on the iron concentration. The arsenic removal capacity of complexed and coprecipitated FeAsO4(s) was estimated to be 16.12 mg per g of iron oxide. It is concluded that the sonochemical treatment of As(III) solution in the presence of Fe(II) is a simple and viable technique for the oxidation of As(III) into arsenate [As(V)] and the treatment of total arsenic. (C) 2011 The Japan Society of Applied Physics
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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