Investigation of removal of triazine group pesticides from aqueous solutions using by biosorbents

Experiments of cyromazine removal from aqueous solutions were performed using by batch system with a temperature controlled water bath shaker. In this thesis study effects of pH and contact time on removal of cyromazine were investigated. The obtained data shown that cyromazine were removed effectively by Rhizopus arrhizus, Aspergillus versicolor and Xanthoria parietina and the maximum removal percentage were % 84,60; % 91,60 and % 84,60 respectively, at initial cyromazine concentration of 5 mg/L and optimum contiditions of pH 2 and contact time of 480 minute. The obtained data from initial pesticide concentration studies were calculated according to Langmuir, Freundlich and Temkin isotherm models. The kinetic investigations were carried out using by pseudo first order, pseudo second order and intra particle diffusion kinetic models. Key Words: Biosorption, Cyromazine, Rhizopus arrhizus, Aspergillus versicolor, Xanthoria parietina