Study on the Action Process and Mechanism of Fluorine between Reservoir Water and Bottom Sediments

Abstract

Abstract The surface sediments in the control of pollutants in surface water fluoride fate plays a key role and effectiveness, to reveal the process and mechanism of action, the dynamic test and the adsorption and desorption experiment, combining with the pseudo two order kinetics equation, isothermal adsorption equation, simulation of reaction process between three springs reservoir sediment and reservoir water fluoride. The results showed that: (1) by fluorine ion dynamics in the process of chemical reaction control in surface sediments, can be described by the pseudo two order kinetics equation, the fitting equation is t/qt= 0.7401t + 0.1266, the correlation coefficient R2 = 0.9985; (2) the linear adsorption isotherm of F-in surface sediments, the regression equation is Qe=0.0047Ce+0.0115 that decision coefficient of R2 reached 0.99, the saturated adsorption amount of F-in the sediments of 30.56 mg/g.