The Chitosan/Zeolite Composite Adsorbed Fluoride Ions from Eryuan Hot Spring Water in Yunnan Province

Abstract

With chitosan as the carrier, the introduction of zeolite to form the composites can adsorb fluorine ion, examines the composite eryuan hot springs for adsorption, this paper investigated the adsorption time, solution pH, the single factor’s influence on adsorption, and use the corresponding optimization test the adsorption solution pH, adsorption temperature, composite material inputs, the results show that at room temperature and chitosan and zeolite ratio 0.06 under the condition of the best quality, the best condition of optimization for pH = 5.2, material mass is 4.4 g/L, Degree of adsorption time is 72 min, to predict the optimal value of 98.91%, in order to verify the reliability of the experiment, fluorine ion adsorption for validation of eryuan hot springs samples, the actual adsorption rate was 96.87%, the model predicted values is 2.04% which is accords with the theoretical value, the experimental results show that the composite material adsorption effect is good and it has potential application value.