Arsenite oxidation and treatment by ultrasound/iron in aqueous solutions

Cui, M. and Jang, M. and Lee, S. and Kweon, B. and Yun, S.T. and Khim, J. (2011) Arsenite oxidation and treatment by ultrasound/iron in aqueous solutions. Japanese Journal of Applied Physics, 50 (7). ISSN 0021-4922, DOI https://doi.org/10.1143/Jjap.50.07he08.

Preview

PDF (Arsenite oxidation and treatment by ultrasound/iron in aqueous solutions) Arsenite_Oxidation_and_Treatment_by_Ultrasound.pdf - Other Download (203kB)

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 × 10-2 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 16.12mg 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. © 2011 The Japan Society of Applied Physics.

Item Type:	Article
Funders:	UNSPECIFIED
Additional Information:	2 Sp. Iss. SI 794FP Times Cited:3 Cited References Count:18
Uncontrolled Keywords:	Arsenic removal, Arsenite oxidation, Co-precipitated, Half lives, Iron concentrations, Pseudo-first-order kinetic models, Sonochemical treatment, Arsenic, Iron oxides, Pollution control, Solutions, Ultrasonic applications, Oxidation
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	30 Jan 2014 03:56
Last Modified:	30 Jan 2014 03:56
URI:	http://eprints.um.edu.my/id/eprint/9190

Actions (login required)

View Item