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Kinetic study of sorption of 2,4-D and atrazine on rubber granules

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Title Kinetic study of sorption of 2,4-D and atrazine on rubber granules
 
Creator ALAM, JB
DIKSHIT, AK
BANDYOPADHYAY, M
 
Subject contamination
herbicides
river
field
2,4-d
atrazine
herbicides
rubber granules
enthalpy
entropy
 
Description For the removal of 2,4-D (2,4-dichloro-phenoxy-acetic acid) and atrazine (2-chloro-4-ethyalamino-6- isopropylamino-s-traiazine) from water environment, batch studies were performed to study the kinetics of 2,4-D and atrazine sorption by rubber granules. Experiments were conducted at various initial concentrations of 7.5 mg/ L, 4 mg/ L, and 0.5 mg/ L of 2,4-D and atrazine with 18 g/ L sorbent dose. The equilibrium time was found to be 120 minutes for both 2,4-D and atrazine. The regression analysis for the experimental data showed that the rapid stage zone of kinetics profiles followed a first order reversible kinetics for all initial concentrations of sorbate. The various thermodynamic properties such as enthalpy and entropy activation values (Delta H and Delta S) also show that the sorption is spontaneous. This article will provide information toward understanding the sorption phenomena of 2, 4-D and atrazine on waste tyre rubber granules. It also is valuable to us in finding out the rate constant of sorption of 2,4-D and atrazine.
 
Publisher TAYLOR & FRANCIS INC
 
Date 2011-08-30T17:36:44Z
2011-12-26T12:59:05Z
2011-12-27T05:49:58Z
2011-08-30T17:36:44Z
2011-12-26T12:59:05Z
2011-12-27T05:49:58Z
2007
 
Type Article
 
Identifier JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 28(4), 511-517
0193-2691
http://dx.doi.org/10.1080/01932690701277021
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12409
http://hdl.handle.net/10054/12409
 
Language en