Effects of initial concentrations of Moringa oleifera
seed coagulant for removing Chemical Oxygen Demand and Total Dissolved Solids from municipal solid waste leachate have been evaluated at an optimum pH of 7 and temperature of 318 K. The kinetic data obtained from the experiments were fitted to the pseudo first-order, pseudo second-order, Elovich and intraparticle diffusion models. Based on a regression coefficient (R2
), the equilibrium (kinetic) data were best fitted with the Elovich model (R2
= 0.993 for Chemical Oxygen Demand and R2
= 0.996 for Total Dissolved Solids) than that of other models. The results of the kinetic models study indicated that the adsorption capacity of M. oleifera
seed as a coagulant for removing Chemical Oxygen Demand and Total Dissolved Solids in a leachate increased up to 100 mg L-1
, beyond which, the adsorption capacity got reduced. Finally, the present study concluded that M. oleifera
seed coagulant could be employed effectively for Chemical Oxygen Demand and Total Dissolved Solids removal in a municipal solid waste leachate.