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SESSION 10: Organo-Clay Complexes (OCC)
Clay is an important fraction in soil. It determines the fate of many organic chemicals, which may directly or indirectly reach the soil. The inorganic exchange ions of natural clays, e.g. Na and Ca, are strongly hydrated in the presence of water, resulting in a hydrophilic environment at the surface of the clay. As a result, natural clays are ineffective sorbents for poorly water-soluble, non-ionic organic compounds, such as aromatic hydrocarbons that frequently move from contaminated sites (agricultural and/or industrial areas) into the subsurface and the groundwater. The inability of clays to adsorb substantial amounts of non-ionic organic compounds (NOCs) from aqueous solution can be altered by replacing natural cations with larger organic cations through ion- exchange reactions. The idea behind this ion-exchange is to create a hydrophobic environment on the clay surfaces. This environment may enhance partitioning and/or adsorption of the organic pollutants from the aqueous phase to the organic phase that generated on the clay surfaces (organo-clay complex).The formed organo-clay complexes are micro-porous materials and can be used for a wide range of scientific fields.The symposium will provide an open form for researchers around the world in the following sessions:
Session Chair
Yasser EL-NAHHAL
head Environmental Chemistry
Department of Environment and Earth Science
The Islamic University of Gaza
P.O.Box 1175
Gaza, Palestine
Phone: +972 8 2822131
E-mail: y_el_nahhal@hotmail.com
Sesssion topics
Organoclay and biodegradation of pollutants
Organoclay and purification of chemicals
Organoclay and pesticides developments
Organoclay and soil application
Organoclay and waste management
Organoclay and medical application
Organoclay and agricultural application
Computational modeling and simulations of organoclay applications | 
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