Removal of lead from aqueous solutions by Penicillium biomass
- Chengdu Univ. of Science and Technology, Sichuan (China). Dept. of Chemical Engineering
- McGill Univ., Montreal (Canada). Dept. of Chemical Engineering
The removal of lead ions from aqueous solutions by adsorption on nonliving Penicillium chrysogenum biomass was studied. Biosorption of the Pb[sup +2] ion was strongly affected by pH. Within a pH range of 4 to 5, the saturated sorption uptake of Pb[sup +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[sup +2] over other metal ions such as Cd[sup +2], Cu[sup +2], Zn [sup +2], and As[sub +3]. Sorption preference for metals decreased in the following order: Pb > Cd > Cu > Zn > As. The sorption uptake of Pb[sup +2] remained unchanged in the presence of Cu[sup +2] and As [sup +3], it decreased in the presence of Zn[sup +2], and increased in the presence of Cd[sup +2].
- OSTI ID:
- 6148581
- Journal Information:
- Biotechnology and Bioengineering; (United States), Vol. 42:6; ISSN 0006-3592
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ARSENIC
MATERIALS RECOVERY
CADMIUM
COPPER
LEAD
PENICILLIUM
SORPTIVE PROPERTIES
ZINC
ADSORPTION
AQUEOUS SOLUTIONS
DECONTAMINATION
PH VALUE
WASTE WATER
WATER POLLUTION
CLEANING
DISPERSIONS
ELEMENTS
EUMYCOTA
FUNGI
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
METALS
MIXTURES
OXYGEN COMPOUNDS
PLANTS
POLLUTION
PROCESSING
SEMIMETALS
SOLUTIONS
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology