Adsorption Capability and Kinetics of Chitosan for Lead in Water
- VernacularTitle:壳聚糖对水中铅的吸附性能及动力学研究
- Author:
Chunmei DING
;
Qun LIU
;
Zhiyi CAO
- Publication Type:Journal Article
- Keywords:
Lead;
Chitosan;
Adsorption
- From:
Journal of Environment and Health
2007;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the adsorption capability and kinetics of chitosan (CTS) for Pb(II) in water. Methods The spectrophotometry was used to explore the effects of time, temperature, pH value and ion intensity on the adsorption capability of CTS for lead. Results The adsorption speed was faster at the beginning, then to the balance status 80 minutes later. The adsorption rate increased as the temperature increased. pH value could influence the adsorption, the adsorption capacity reached to the maximum when the pH values were 3.6-4.6. The sodium chloride solution showed an inhibitory effect on the adsorption with a dose dependent manner. Conclusion The adsorption is influenced by the effects of time, temperature, pH value, and ion intensity. The apparent energy(?E) is 5.11 kJ/mol.
