REMOVAL OF ORGANIC COMPOUNDS FROM AQUEOUS SOLUTION BY MONTMORILLONITE CLAYS AND ORGANO-CLAYS
Keywords:
Montmorillonite, rgano-clays, organic compounds, adsorptionAbstract
The aim of this research was to investigate the feasibility of utilizing Montmorillonite and Organo-clays for the removal of organic compounds from aqueous solution. The Quaternary Ammonim Cations (QACs) used in the surface modification of Organo-clays were Tetramethylammonium (TMA), Hexadecyltrimethylammonium (HDTMA), Tetradecyltrimethylhexadecylammonium (TDMA) and Benzyldimethylammonium (BDHDMA). The targets of the removal were humic acid, methylene blue, methyl orange, phenol, 3 chlorophenol and naphthalene. From batch adsorption results, Montmorillonite clays and Organo-clays were able to uptake the studied organic compounds from aqueous solution. Organo-clays (HDTMA-clays, TDMA-clays and BDHDMA-clays) had the higher efficiency than Montmorillonite clay. From fixed-bed adsorption results, the capacity of adsorption depended on the contact time between the adsorbent and adsorbate. The capacity of adsorption increared with the contact time.
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