Journal of Chemical Engineering & Process Technology
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Chidi Obi

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• Research Article
  Meta-Xylene Removal from Aqueous Solution Using Surfactant-Modified Bentonite: A Kinetic View
  Author(s): Chidi Obi and Michelle Abonele ApemiyeChidi Obi and Michelle Abonele Apemiye
  
  The bentonite used was a natural calcium bentonite from Enugu State, Nigeria. This was treated with Na2CO3 by ion exchange method to form a sodium bentonite described as unmodified bentonite (UB). Unmodified bentonite was treated with cetyltrimethylammonium bromide (CTAB) to produce a modified bentonite (MB). The performance of unmodified bentonite (UB) and modified bentonite (MB) were evaluated for the sorption of meta-xylene from aqueous solution. The resultant materials were characterized using kinetic model equations. The optimum contact time for the adsorption of meta-xylene was 120 minutes with a maximum percentage removal of 96.82 % for the modified adsorbent. Pseudo-second order equation gave the best correlation coefficient value (R2) of 0.999 for the adsorption of meta-xylene on the modified bentonite (MB). These results obtained confirmed the efficiency and effectiveness of mo.. View More»
  DOI: 10.4172/2157-7048.1000323

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