Accumulation of cadmium, lead, and nickel by fungal and wood biosorbents

Journal Article · Mon May 01 04:00:00 EDT 1995 · Applied Biochemistry and Biotechnology

DOI:https://doi.org/10.1007/BF02788603· OSTI ID:273421

Holan, Z R; Volesky, B ^[1]

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1. McGill Univ., Montreal (Canada)

Native fungal biomass of fungi Absidia orchids, Penicillium chrysogenum, Rhizopus arrhizus, Rhizopus nugricans, and modified spruce sawdust (Picea engelmanii) sequestered metals in the following decreasing preference: Pb>Cd>Ni. The highest metal uptake was q{sub max}=351 mg Pb/g for A. orchidis biomass. P. chrysogenum biomass could accumulate cadmium best at 56 mg Cd/G. The sorption of nickel was the weakest always at >5 mg Ni/g. The spruce sawdust was modified by crosslinking, oxidation to acidic oxoforms, and by substitution. The highest metal uptake was observed in phosorylated sawdust reaching q{sub max}=224 mg Pb/g, 56 mg Cd/g, and 26 mg Ni/g. The latter value is comparable to the value of nickel sorption by wet commercial resin Duolite GT-73. Some improvement in metal uptake was also observed after reinforcement of fungal biomass. 40 refs., 5 figs., 3 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 273421
• Journal Information: Applied Biochemistry and Biotechnology, Journal Name: Applied Biochemistry and Biotechnology Journal Issue: 2 Vol. 53; ISSN 0273-2289; ISSN ABIBDL
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
BIOMASS
CADMIUM
FUNGI
INDUSTRIAL WASTES
LEAD
METALS
NICKEL
RADIOECOLOGICAL CONCENTRATION
SORPTION
UPTAKE
WOOD