Accumulation of cadmium, lead, and nickel by fungal and wood biosorbents
摘要：
Native fungal biomass of fungi Absidia orchidis, Penicillium chrysogenum, Rhizopus arrhizus, Rhizopus nigricans , and modified spruce sawdust ( Picea engelmanii ) sequestered metals in the following decreasing preference pb>Cd>Ni. The highest metal uptake was q max = 351 mg Pb/g 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 phosphorylated sawdust reaching q 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.
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关键词：
Biosorption cadmium lead, nickel fungal biomass Absidia orchidis Penicillium chrysogenum Rhizopus arrhizus Rhizopus nigricans sawdust sorption
DOI：
10.1007/BF02788603
被引量：
年份：
1995
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