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Mode of Biosorption of Chromium(III) by Spirulina Species Cells from Aqueous Solutions
Author(s) -
Jagiełło Monika,
Minta Ewelina,
Chojnacka Katarzyna,
Kafarski Paweł
Publication year - 2006
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143005x72885
Subject(s) - biosorption , sorption , chromium , aqueous solution , chemistry , spirulina (dietary supplement) , nuclear chemistry , cyanobacteria , adsorption , environmental chemistry , biology , bacteria , organic chemistry , raw material , genetics
The ability of commercial Spirulina species to remove chromium(III) [Cr(III)] from an aqueous environment was studied under photoautotrophic conditions. Biomass displayed high adsorptive capacity, with recorded sorption rates up to 99% at a concentration range of 0.02 to 0.18 mg chromium ions/mL of medium. Using isolated cell wall preparations, it was shown that Cr(III) is mainly sorbed onto the surface of cell walls and that the sorption capacity of the walls is enormously high. Living cells of cyanobacteria show the tendency to form multilayer sorption systems, as indicated electron microscopy.