Research on Cr3+ Adsorption Properties Based Synthetic Zeolite

Abstract

The article discusses the effect of the adsorbed doseã€initial value of pH and reaction temperature on the adsorption process of Cr3+ by fly ash based synthetic zeolite, and then the data is simulated for adsorption isotherm and dynamics at the same time. The results indicate that the dose of zeoliteã€initial value of solution pH and reaction temperature all have the significant effects on the removal effect of Cr3+. With the increasing of addition of adsorbent, the removal efficiency of Cr3+ improves constantly and the saturated adsorption capacity drops gradually. The adsorption rate of zeolite adsorbing Cr3+ is about 100% when the initial value of pH comes to 4. The rise of reaction temperature is not positive for the adsorption of zeolite on Cr3+ and the adsorption effect of zeolite on Cr3+ begins to fall gradually with the going up of reaction temperature. The process of zeolite adsorbing Cr3+ fits the Freundlich adsorption isotherm and pseudo second-class reactive kinetics equation can well describe the adsorption behavior of zeolite on Cr3+.