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Removal of some thiazole dyestuffs from aqueous media by adsorption onto different types of carbon

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Title Removal of some thiazole dyestuffs from aqueous media by adsorption onto different types of carbon
 
Creator El-Katori, E E
Fouda, A S
Al-Sarawy, A A
 
Subject Adsorption
Adsorption dynamics
Thermodynamic functions of adsorption
Langmuir and Freundlish isotherms
Thiazole dyestuffs
 
Description 319-326
A group of 5-thiazolidinone derivatives<b> </b>based dyestuffs have been synthesized and investigated<sup>1</sup>. This paper describes the possibility of using carbon for their removal, as organic pollutants, from aqueous solutions. The removal of these dyestuffs from their aqueous solutions is carried out by using different adsorbent such as granular activated carbon (GAC), carbon soot (CS) and powdered activated carbon (PAC) at different temperatures 25<sup>o</sup>C, 40<sup>o</sup>C, 50<sup>o</sup>C and 60<sup>o</sup>C. Kinetics and mass transfer studies are carried out by applying different models such as Lagergren, Weber-Morris, Langmuir and Freundlish. Different kinetic parameters (<i>K­<sub>ad</sub></i> ‎, <i>K­<sub>p</sub></i>, <i>a</i>, <i>b</i>, <i>R<sub>L</sub></i>, <i>n</i>, <i>K</i>) are calculated from these models. The thermodynamic parameters (<i>E<sub>a</sub><sup>*</sup>, </i><i><img src='/image/spc_char/delta.gif' border=0></i><i>H<sup>*</sup></i>, <i><img src='/image/spc_char/delta.gif' border=0></i><i>S<sup>*</sup></i> and <i><img src='/image/spc_char/delta.gif' border=0></i><i>G<sup>*</sup></i>) are also calculated for the interpretation of the adsorption process.
 
Date 2011-09-07T08:39:51Z
2011-09-07T08:39:51Z
2011-07
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://hdl.handle.net/123456789/12664
 
Language en_US
 
Rights <img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
 
Publisher NISCAIR-CSIR, India
 
Source IJCT Vol.18(4) [July 2011]