Adsorption Equilibrium and Kinetic Studies of Effect of ortho-Substitution to Benzoic Acid in Aqueous Phase Using Granular Activated Carbon
The phenomenon of adsorption is most widely employed for separation, treatment of waste effluent, refrigeration, environmental pollution control, etc. [1-3]. Organic compounds such as aniline, benzoic acid, aldehydes, etc. are common organic pollutants, need to be removed from wastewater as these compounds posses carcinogenic characteristics [4-6]. Use of activated carbon by means of adsorption for the purpose of removal of organic pollutants are widely used [7-9]. Adsorption is a time dependent process and the knowledge of adsorbate uptake rate and equilibrium is imperative for evolution and design of batch, fixed bed fluidized bed reactor [10-17]. The knowledge of relevant reaction mechanism, interparticle micro-transport processes and reaction dynamics will afford opportunity for evolution of rational process design and optimization procedures of sufficiently wide applicability. Chemical factors associated with the adsorbates are branching and functional group. The physical factors associated with the experimental systems are temperature, initial adsorbate concentration, contact time, linear velocity and presence of suspended solids [18]. Limited literature is available regarding the adsorption of benzoic acid and its ortho-derivatives. Many a time ecological balance is not disturbed directly through the discharge of Adsorption Equilibrium and Kinetic Studies of Effect of ortho-Substitution to Benzoic Acid in Aqueous Phase Using Granular Activated Carbon