Removal of lead from aqueous solutions by  Penicillium  biomass | Zendy

Niu Hui | Zendy; Xu Xue Shu | Zendy; Wang Jian Hua | Zendy; Volesky B. | Zendy

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Removal of lead from aqueous solutions by Penicillium biomass

Author(s) -

Niu Hui,

Xu Xue Shu,

Wang Jian Hua,

Volesky B.

Publication year - 1993

Publication title -

biotechnology and bioengineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.136

H-Index - 189

eISSN - 1097-0290

pISSN - 0006-3592

DOI - 10.1002/bit.260420615

Subject(s) - biosorption , sorption , penicillium chrysogenum , chemistry , aqueous solution , biomass (ecology) , nuclear chemistry , adsorption , selectivity , metal ions in aqueous solution , metal , environmental chemistry , cadmium , inorganic chemistry , organic chemistry , biochemistry , ecology , catalysis , biology

The removal of lead ions from aqueous solutions by adsorption on nonliving Penicillium chrysogenum biomass was studied. Biosorption of the Pb +2 ion was strongly affected by pH. Within a pH range of 4 to 5, the saturated sorption uptake of Pb +2 was 116 mg/g dry biomass, higher than that of activated charcoal and some other microorganisms. At pH 4.5, P. chrysogenum biomass exhibited selectivity for Pb +2 over other metal ions such as Cd +2 , Cu +2 , Zn +2 , and As +3 Sorption preference for metals decreased in the following order: Pb > Cd > Cu > Zn > As. The sorption uptake of Pb +2 remained unchanged in the presence of Cu +2 and As +3 , it decreased in the presence of Zn +2 , and increased in the presence of Cd +2 . © 1993 John Wiley & Sons, Inc.

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