Fractionation of metal-organic components extracted from a sludge-amended soil

Conference · · Soil Sci. Soc. Am. J.; (United States)

OSTI ID:6294034

Keefer, R F; Codling, E E; Singh, R N

A sandy loam soil was amended in situ with three sewage sludges and after 3 yr extracted to determine which organic fractions are associated with metals. A separate portion of the soil was pretreated by acid dialysis followed by DMF extraction. The amounts of metals associated with the hydrophilic and hydrophobic fractions depended on the metal examined, extractant used, the pretreatment, and the kind of sludge added to the soil. Cadmium was not detected in any of the organic fractions. Copper, Zn, and Ni were generally recovered least efficiently from the soil treated with a sludge highest in these metals. Most of the metals were generally associated with the hydrophobic portion following dialysis, but Cu was most often associated with the hydrophilic base fraction. This fractionation method has been demonstrated to be effective in separating metal/organic components in extracts from a soil to which three sludges were added. The data indicate that there were several mechanisms operative in combining metals with organic fractions - at least two for Cu and four each for Zn, Ni, and Pb.

• Research Organization: West Virginia Univ., Morgantown
• OSTI ID: 6294034
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Vol. 48:5; Conference: 48. annual meeting, Soil Science Society of America, Las Vegas, NV, USA, 25-30 Nov 1984
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CADMIUM
SOIL CHEMISTRY
COMPLEXES
BIOSYNTHESIS
COPPER
NICKEL
ZINC
BIOCHEMISTRY
GROUND DISPOSAL
QUALITATIVE CHEMICAL ANALYSIS
SAMPLING
SEWAGE SLUDGE
SOILS
SYNTHESIS
CHEMICAL ANALYSIS
CHEMISTRY
ELEMENTS
MANAGEMENT
METALS
SEWAGE
SLUDGES
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)