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The adsorption characteristics of gallic acid on fresh calcium phosphate in sucrose solution were discussed. Three kinetic models, including pseudo-first-order model, pseudo-second-order model and intraparticle diffusion model, were selected to follow the adsorption processes. The results which adsorption reaction occurred in 10% sucrose solution showed that the pseudo-second-order equation provided the best correlation to the experimental data (R 2 =0.9908~0.9964). Under the initial gallic acid concentration were 25, 50, 75 mg•L -1 in the 10.0% sucrose solution, the adsorption rate of gallic acid on fresh calcium phosphate were 0.0614, 0.0368, 0.0149 g•mg -1 •min -1 , respectively. Adsorption isotherms curves of gallic acid from different concentrations of sucrose solution on fresh calcium phosphate all conforms to the Langmuir model (R 2 =0.9919~0.9965). The sucrose solution concentration had effect on the saturated adsorption capacity of gallic acid. The maximum adsorption capacity of gallic acid were 8.4317,

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