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<strong>Study on removal of m-phenylenediamine from aqueous solution by adsorption over granular activated carbon</strong>

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Title Statement <strong>Study on removal of m-phenylenediamine from aqueous solution by adsorption over granular activated carbon</strong>
 
Added Entry - Uncontrolled Name Raval, Hiren D; CSIR-Central Salt and Marine Chemicals Research Institute
 
Uncontrolled Index Term m-Phenylenediamine; Granular activated carbon; Adsorption; Kinetics; Hazardous effluent treatment
 
Summary, etc. <em>m-</em>Phenylenediamine (MPD) is used for manufacture of thin film composite reverse osmosis (RO) membrane in polyamide thin film formation by interfacial polymerization. The used<em> m- </em>phenylenediamine solution has to be discarded as effluent. Granular activated carbon is found to be an efficient adsorbent for removal of <em>m-</em>phenylenediamine from aqueous solution. Brunauer-Emmett-Teller (BET) surface area of the granular activated carbon is 446 m<sup>2</sup>/g and micropore volume 0.15 cc/g. A systematic study of adsorption of <em>m-</em>phenylenediamine over granular activated carbon with different loading of adsorbent in given <em>m-</em>phenylenediamine solution concentration and different concentration of <em>m</em>-phenylenediamine solution in given adsorbent quantity has been carried out. Adsorption isotherms have been developed in each case. It is found that at 28% w/v concentration of adsorbent, the total MPD present in the 2% aqueous solution is adsorbed. It is found that adsorption of MPD over granular activated carbon follows Freundlich isotherm x/m = k c<sup>1/n </sup>, where k =0.4576 and n = 4. Moreover, the study involves kinetics of adsorption of <em>m-</em>phenylene diamine over granular activated carbon at different temperatures and it is found that the kinetics of MPD adsorption over granular activated carbon follows Elovich Model.<em> </em>The kinetic study indicates that the optimum temperature of adsorption is 40°C as the MPD adsorption efficiency improves from 30 to 40°C and subsequently drops drastically for 45°C. The optimum temperature for adsorption has been found. It is found that granular activated carbon is an efficient adsorbent for removal of<em> m-</em>phenylenediamine from aqueous solution.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2016-05-18 13:02:37
 
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http://op.niscair.res.in/index.php/IJCT/article/view/4423
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 22, ##issue.no## 1-2 (2015): IJCT Vol.22(1-2) [January-March 2015]
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCT/article/download/4423/0