Abstract:

In order to make full use of chitosan and manganese, in this paper the isothermal adsorption kinetics
of chitosan with manganese was investigated by adsorption method. The study of the adsorption kinetics
showed that the rate of adsorption effect of manganese on chitosan could be interpreted in term of first order
reaction. The experimental data of adsorption equilibrium from manganese solutions were satisfied with the
Langmuir and Fruendlich isotherm equation. The results showed that Mn with chitosan was chelate. The
adsorption saturation value was 3.099 g/g at pH=3.5, the adsorption balance constant was 120.4 L/g and the
adsorption enthalpy variety was 16.81 kJ/mol. The apparent adsorption activation energy was 29.08 kJ/mol and
the sorption rate constant of the Lagergren-one-order sorption was 0.396 h-1 at 35℃. This study will provide
some basis theoretic data for application of the chelate of chitosan with manganese.