CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Kinetics of selenite reduction by zero-valent iron
Liang, LP; Jiang, X; Yang, WJ; Huang, YY; Guan, XH; Li, LN
2015
Source PublicationDESALINATION AND WATER TREATMENT
Volume53Issue:9Pages:2540—2548
Subtype期刊文献
AbstractZero-valent iron (ZVI) is an inexpensive agent that can remove many common environmental contaminants. The effects of dissolved oxygen (DO), pH, initial selenite concentration (Se(IV)), ZVI dosage and particle size as well as reaction temperature on Se(IV) removal by ZVI were systematically investigated in this study. Se(IV) removal by ZVI was more favored under oxic conditions with higher reaction rate than under anoxic conditions, ascribing to the promoted ZVI corrosion rate in the presence of DO. Moreover, Se(IV) removal by ZVI was enhanced with increasing ZVI dosage and reaction temperature but decreased with increasing pH and ZVI particle size. The removal rate of Se(IV) by ZVI experienced an increase and then a decrease with initial Se(IV) concentration ranging from 9.9 to 78.6mg L-1. To further describe the reaction rate, a pseudo-?rst-order kinetics was employed, and the calculated activation energy, by fitting the rate constants at different temperatures, was determined to be 32.86kJmol(-1). When fixing other conditions, good linear correlation could be observed between pseudo-first-order reaction rate constants (k(obs)) and ZVI dosage. Compared with other methods for Se(IV) removal reported in literatures, reduction by ZVI was considered a promising technique, which could rapidly and effectively eliminate Se(IV) from waters.
KeywordAqueous-solution Removal Adsorption Selenate Sorption Water Particles Oxides Fe Dechlorination
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24492
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Liang, LP,Jiang, X,Yang, WJ,et al. Kinetics of selenite reduction by zero-valent iron[J]. DESALINATION AND WATER TREATMENT,2015,53(9):2540—2548.
APA Liang, LP,Jiang, X,Yang, WJ,Huang, YY,Guan, XH,&Li, LN.(2015).Kinetics of selenite reduction by zero-valent iron.DESALINATION AND WATER TREATMENT,53(9),2540—2548.
MLA Liang, LP,et al."Kinetics of selenite reduction by zero-valent iron".DESALINATION AND WATER TREATMENT 53.9(2015):2540—2548.
Files in This Item:
File Name/Size DocType Version Access License
Kinetics of selenite(668KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liang, LP]'s Articles
[Jiang, X]'s Articles
[Yang, WJ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liang, LP]'s Articles
[Jiang, X]'s Articles
[Yang, WJ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liang, LP]'s Articles
[Jiang, X]'s Articles
[Yang, WJ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Kinetics of selenite reduction by zero-valent iron.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.