Ability of Iraqi Siliceous Rocks Surface in Adsorption of Acetophenon and Some Derivatives

	Ability of Iraqi Siliceous Rocks Surface in Adsorption of Acetophenon and Some Derivatives
journal of kerbala university
Article 1, Volume 3, Issue 4, 2007, Pages 132-140 PDF (0 K)
Abstract
Water is the most widely used and a bundant chemical and for industrial and domestic purposes ,however water is polluted by pollutants such as sewage ,solid wastes,organic materials and industrial effluents ,if the concentration of the pollutants increases to such an extent as to make the receiving wasters unfit for use,steps must be taken to reduce or completely remove the objectionable pollutants.In general ,the methods that are usually adopted include sedimentation ,filtration ,biological oxidation ,chemical precipitation ,adsorption ,etc…. .The need for the control and preventation of pollution of water arises from the fact these are vital for our existence. This search is concerned with the adsorption of acetophenone and some derivatives from aqeous solution on Iraqi siliceous rocks powder by using spectrophotometric method.The results shows that the adsorption isotherms are of types S3 and S4 according to Giles classification and are in a good correlation with Freundlich isotherm in the range of concentrations.The effect of introducing electron with drawing groups and electron donating groups which substituted in the aromatic ring on the adsorption process has been investigated ,the results showed that the derivatives is less in adsorption capacity than the adsorption capacity for the origin compound as in the following order :- Acetophenone > p-Bromo Acetophenone > p-Nitro Acetophenone > p-Amino Acetophenone Adsorption of Acetophenone on siliceous rocks powder was examined as a function of temperature in the rang (296-333k),the wxtent of adsorption was found to decrease with the increase in temperature (exothermic process). The results of adsorption study of p-Nitro Acetophenone at different pH values showed an increase in the following order :-

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