USE OF IMMOBILIZED TANNIN ADSORBENT FOR REMOVAL OF CR(VI) FROM WATER

Authors
LIMA L OLIVARES S MARTINEZ F TORRES J DELAROSA D SEPULVEDA C
Citation
L. Lima et al., USE OF IMMOBILIZED TANNIN ADSORBENT FOR REMOVAL OF CR(VI) FROM WATER, Journal of radioanalytical and nuclear chemistry, 231(1-2), 1998, pp. 35-40
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
231
Issue
1-2
Year of publication
1998
Pages
35 - 40
Database
ISI
SICI code
0236-5731(1998)231:1-2<35:UOITAF>2.0.ZU;2-F
Abstract
Adsorption of Cr(VI) by two tannin sorbents is evaluated using radiotr acers. Evaluation of the sorption process shows that the Cr(VI) -tanni n molecule binding is the principal responsible For chromium adsorptio n. High sorption capacities were registered for both sorbents at pH 2. For Eucaliptus Saligna Sm sorbent (ETS) sorption capacity is 0.92+/-0 .03 mmol/g and for Lysiloma latisiliqua sorbent (LTS) is 3.8+/-0.3 mmo l/g. Influence of different ions present in water is examined. High so rption capacity is reported for LTS in sea and tap water samples. It r epresents 90-94% of adsorption in distillated water.