Kinetics and mechanisms of the release of trace inorganic contaminants to ground water from coal ash basins on the Savannah River Plant: Progress report, October 1, 1987--September 30, 1988

Technical Report · Wed Aug 31 04:00:00 EDT 1988

OSTI ID:6778725

Undisturbed cores of ashes from the sites, randomly selected in the Old and New ash disposal basins, located in D-area on the Savannah River Plant were removed and sequentially extracted for the quantitative estimation of dissolved (pore water), exchangeable, Fe/Mn oxide associated and organic matter associated trace inorganic contaminants (i.e., As, Cd, Cr and Ni). Undisturbed cores of ashes were leached with deionized water, nitric acid (pH3) and calcium hydroxide (pH8) solution to evaluate the kinetics of release of trace metals. The ash samples were also analyzed for total P, K, Na, Ca, Mg, Al, Pb, Mn, F, B, Cu, Zn and Mo. Sluiced water samples, at four locations in the new ash basins, were tested for As, Ca, Cd, Cr, Fe, Mn, and Ni. Ground water samples from wells, installed at the ash sampling sites were tested for Ca, Mg, Na, K, P, Al, Fe, Mn, Ti, Cu, Zn, Ni, Mo, Cd, Si, Cr, Sr, B, Ba, Pb, V, As and Se. A very small fraction of the total elemental concentration, excepting Cd, were found in the dissolved phase. Most of the easily releasable elements in the ashes were found associated with Fe/Mn oxides and organic matter. Analysis of the data clearly indicates the release and mobilization of trace contaminants to the lower horizons of the impounded ashes. Elemental translocation was found to be more serious in the old ash basin. 19 refs., 17 tabs.

• Research Organization: Claflin Coll., Orangeburg, SC (USA)
• DOE Contract Number: FG09-86SR15170
• OSTI ID: 6778725
• Report Number(s): DOE/SR/15170-2; ON: DE89006368
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
ALKALINE EARTH METALS
ARSENIC
ASHES
CADMIUM
CALCIUM
CHROMIUM
CONTAMINATION
DISSOLUTION
DOCUMENT TYPES
ECOLOGICAL CONCENTRATION
ELEMENTS
GROUND WATER
HYDROGEN COMPOUNDS
IRON
LEACHING
MANAGEMENT
MANGANESE
METALS
NATIONAL ORGANIZATIONS
NICKEL
ORGANIC MATTER
OXYGEN COMPOUNDS
PROGRESS REPORT
RESIDUES
SAVANNAH RIVER PLANT
SEMIMETALS
SEPARATION PROCESSES
TRANSITION ELEMENTS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WATER