Možnost odstranění železa z vodného roztoku pomocí vybraných odpadních materiálů

Abstract

This thesis deals with the possibility of using orange peel from an orange tree right (Citrus sinensis) and Fomitopsis pinicola as potential biosorbents for removing metals from aqueous solution. In the theoretical part, the principle of biosorption and its mechanisms, factors influencing its course selected biosorbents and iron. The practical part describes the methodology grain size, thermal and chemical treatment studied biosorbents. On activation of the binding sites of the cell walls were used two activating agents: HCl and NaOH at a molar concentration of 1 mol/l The effect of chemical modification and the particle size of the studied biosorbents to remove iron from the aqueous solution. In the study of factors affecting the biosorption was paid attention only to the pH value. To describe the adsorption data were used two mathematical models of Langmuir and Freundlich isotherm, the best fit Langmuir model. For biosorption were used biosorbents grit size < 0.5 mm and 0.5 - 1 mm. To investigate the optimum pH values and modeling isotherms were used orange peel activated sodium hydroxide with a grain size < 0.5 mm and Fomitopsis pinicola activated hydrochloric acid with a grain size of 0.5 - 1 mm. The optimum pH, published 6.0, was used for modeling the adsorption isotherms.