Published on February 2018 | Environmental Engineering

Adsorptive Removal of Sodium Lauryl Sulfate, CetylTrimethyl Ammonium Bromide & Triton X-100 using Non-Conventional Adsorbent through Chemical Kinetics & Thermodynamics: A Comparative Study

Abstract : The object of present study is to examine the potential use of carbonized orange peel (COP) as an economical and nonconventional adsorbent for adsorptive removal of anionic, cationic and non-ionic surfactants from municipal effluent. Comparison has done among fresh COP, alkali and acid activated recycled COP. In addition, investigation of the chemical kinetics and thermodynamics has also been conducted. Pseudo second order rate equation is used to determine the equilibrium amount adsorbed and equilibrium concentration for different initial concentrations. Result shows that the chemical kinetics of adsorption of sodium lauryl sulfate (SLS), cetyltrimethyl ammonium bromide (CTAB) and Triton X-100 (TX-100) have the values of rate constant(????): 4.035 x 10-3 , 5.0 x 10-3 and 4.52 x 10-3 g.mg-1min. respectively. The negative numerical values of Standard Gibb’s Free Energy Change (∆???? 0 ) of SLS, CTAB and TX-100 are -2.969, -2.776 and -2.863 kJmol-1 respectively, which show that the adsorption of all the three surfactants on fresh and treated carbonized orange peel (COP) is found to be spontaneous, feasible and exothermic in nature