Calcium alginate and chitosan as potential sorbents for strontium radionuclide

被引:12
作者
Fuks, Leon [1 ]
Oszczak, Agata [1 ]
Gniazdowska, Ewa [1 ]
Sternik, Dariusz [2 ]
机构
[1] Inst Nucl Chem & Technol, PL-03195 Warsaw, Poland
[2] Marie Curie Sklodowska Univ, PL-20031 Lublin, Poland
关键词
Water treatment; Calcium alginate; Chitosan; Strontium-85; Adsorption; Isotherm; AQUEOUS-SOLUTIONS; SR-90; BIOSORPTION; SR-89; IONS; ACID; PAIN;
D O I
10.1007/s10967-014-3698-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This work reports the adsorption of strontium(II) from aqueous solutions onto calcium alginate (CA) and chitosan (CH) materials. The adsorption process was studied in batch experiments as a function of the pH of the solution, contact time, and temperature. Freundlich isotherm was found to describe the sorption process comparatively well as the Langmuir model. Laboratory obtained spherical beads of CA seems to be a better sorbent than commercially available materials. A contact time of about 4 h and neutral pH of the initial aqueous solution seem to be optimal conditions for Sr-85 to be removed from contaminated solutions using alginate beads.
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页码:15 / 20
页数:6
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