ni(ii) immobilization by bio-apatite materials: appraisal of chemical, thermal and combined treatments
;Šljivić-Ivanović Marija;Milenković Aleksandra;Jović Mihajlo;Dimović Slavko;Mraković Ana;Smičiklas Ivana
organon2016Vol. 22pp. 117-126
177
marija2016chemicalni(ii)
Abstract
Animal bones are natural and rich source of calcium hydroxyapatite (HAP),
which was found to be a good sorbent material for heavy metals and
radionuclides. Various treatments can reduce the content of bone organic
phase and improve sorption properties. In this study, sorption capacities of
raw bovine bones (B) and samples obtained by chemical treatment with NaOH
(BNaOH), by heating at 400 oC (B400) and by combined chemical and thermal
treatment (BNaOH+400), were compared, using Ni(II) ions as sorbates. Maximum
sorption capacities increased in the order B