An Evaluation of Stabilization/Solidification of a K088 Spent Potliner Waste

This report presents the results of testing performed on a stabilized/solidified (S/S) spent potliner waste. The waste is an ash from the incineration of wastes produced from the primary reduction of aluminum from the smelting industry. The contaminants found in the waste area metals, cyanides, and...

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Bibliographic Details
Main Authors: Channell, Michael G, Kosson, Teresa T
Format: Report
Language:English
Subjects:
ALUMINUM
ASHES
BINDERS
CALCIUM OXIDES
COMPRESSIVE STRENGTH
CONTAMINANTS
CYANIDES
DISPOSAL
DUST
ENGINEERING
FLY ASH
HAZARDOUS WASTES
K088 SPENT POTLINER WASTE
METALS
REDUCTION
RISK
SMELTING
Solid Wastes Pollution and Control
SOLIDIFICATION
TEST AND EVALUATION
TOXICITY
WASTE DISPOSAL
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Summary:This report presents the results of testing performed on a stabilized/solidified (S/S) spent potliner waste. The waste is an ash from the incineration of wastes produced from the primary reduction of aluminum from the smelting industry. The contaminants found in the waste area metals, cyanides, and fluorides. Four S/S, processes were evaluated in this study. They include the following: (a) a cement process, (b) a kiln dust process, (c) a lime/fly ash process, and (d) a proprietary binder furnished by the Risk Reduction Engineering Laboratory. Physical and leaching characteristics of the S/S waste were evaluated. Physical characteristics were evaluated using the unconfined compressive strength test. The waste-leaching characteristics were evaluated using the toxicity characteristic leaching procedure. Physical test results showed that S/S waste did not produce any 28-day strengths. Results of the chemical tests showed that cyanides and fluorides were reduced in the extract of the leaching tests.