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Sorption of arsenic onto Vindhyan shales: Role of pyrite and organic carbon

DSpace at IIT Bombay

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Title Sorption of arsenic onto Vindhyan shales: Role of pyrite and organic carbon
 
Creator PAIKARAY, S
BANERJEE, S
MUKHERJI, S
 
Subject aqueous-solutions
red mud
adsorption
removal
ferrihydrite
mexico
india
soils
 
Description Batch isotherms: for arsenic sorption on Vindhyan shales were compared with arsenic sorption on black cotton soil. High sorption was observed on pyrite-rich shales and the Freundlich capacity constant K-F yielded a good correlation with sediment pyrite content. Shales with high organic carbon sorbed more arsenic; however, the organic carbon-rich soil demonstrated significantly lower sorption. This difference may be due to the condensed nature of organic carbon in shale, which may have facilitated formation of organo-arsenic complexes. The pyrite content was also strongly correlated with the organic carbon content, possibly due to microbial synthesis during shale diagenesis.
 
Publisher CURRENT SCIENCE ASSN
 
Date 2011-07-21T07:33:27Z
2011-12-26T12:51:56Z
2011-12-27T05:38:45Z
2011-07-21T07:33:27Z
2011-12-26T12:51:56Z
2011-12-27T05:38:45Z
2005
 
Type Article
 
Identifier CURRENT SCIENCE, 88(10), 1580-1585
0011-3891
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5829
http://hdl.handle.net/10054/5829
 
Language en