Main Title |
Sorption of Heavy Metals by the Soil Fungi 'Aspergillus niger' and Mucor rouxii. |
Author |
Mullen, M. D. ;
Wolf, D. C. ;
Beveridge, T. J. ;
Bailey., G. W. ;
|
CORP Author |
Environmental Research Lab., Athens, GA. ;Tennessee Univ. at Martin. ;Arkansas Univ., Fayetteville. Dept. of Agronomy. ;Guelph Univ. (Ontario). Dept. of Microbiology. |
Publisher |
c1992 |
Year Published |
1992 |
Report Number |
EPA/600/J-92/155; |
Stock Number |
PB92-179811 |
Additional Subjects |
Heavy metals ;
Sorption ;
Soil microorganisms ;
Land pollution ;
Fungi ;
Cells(Biology) ;
Immobilization ;
Biomass ;
Electron microscopy ;
Microbiology ;
Silver ;
Lanthanum ;
Inorganic salt ;
X ray analysis ;
Chemical bonds ;
Colloids ;
Isotherms ;
Cadmium ;
Copper ;
Reprints ;
Aspergillus niger ;
Mucor rouxii
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB92-179811 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
9p |
Abstract |
Sorption of the nitrate salts of cadmium(II), copper(II), lanthanum(III) and silver(I) by two fungi, Aspergillus niger and Mucor rouxii, was evaluated using Freundlich adsorption isotherms and energy dispersive X-ray electron microscopy. The linearized Freundlich isotherm described the metal sorption data well for metal concentrations of 5 microM-1 mM metal. Differences in metal binding were observed among metals, as well as between fungal species. Calculated Freundlich K values indicated that metal binding decreased in the order La(3+) > or = Ag(+) > Cu(2+) > Cd(2+). However, sorption of Ag(+) was greater than that of La(3+) from solutions of 0.1 and 1 mM metal and likely due to precipitation at the cell wall surface. At the 1 mM initial concentration, there were no significant differences between the two fungi in metal sorption, except for Ag(+) binding. At the 5 microM concentration, there was no difference between the fungi in their sorption capacities for the four metals. Electron microscopy-energy dispersive X-ray analysis indicated that silver precipitated onto cells as colloidal silver. The results indicate that Freundlich isotherms may be useful for describing short-term metal sorption by fungal biomass and for comparison with other soil constituents in standardized systems. (Copyright (c) 1992 Pergamon Press plc.) |
Supplementary Notes |
Pub. in Soil Biology and Biochemistry, v24 n2 p129-135 Feb 92. Prepared in cooperation with Tennessee Univ. at Martin, Arkansas Univ., Fayetteville. Dept. of Agronomy, and Guelph Univ. (Ontario). Dept. of Microbiology. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Sorption of Heavy Metals by the Soil Fungi 'Aspergillus niger' and Mucor rouxii. |
Category Codes |
68; 57K; 57B; 99F |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
217730757 |
Origin |
NTIS |
Type |
CAT |