Abstract
With chitosan as the raw material, a new type of resin material is synthesized through cross-linking with formaldehyde and benzaldehyde, and it was used as an adsorbent to adsorb sulfate ion from aqueous solution. The effect of different conditions and the kinetics of the adsorption were investigated. Under the conditions of 0.2 g of adsorbent dosage, 153.3 mg/L of sodium sulfate solution, 40°C of the temperature, 120 min of the equilibrium time and pH of 2.0, the adsorption efficiency (AE) and the adsorption capacity (AC) can both be obtained the optimal values. It shows that the applicability of the second-order model fit the experimental data well from the study of adsorption kinetics.
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