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Chemical Fixation of Flue Gas Desulfurization Sludges and Fly Ash Pages: 16 Published: Jan 1992
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View License Agreement Source: STP1123-EB Abstract A study is under way to investigate the heavy metal binding mechanisms in solidified/stabilized high sulfur coal fly ash and flue gas desulfurization (FGD) sludges. Fly ash and sludge from a typical wet FGD process and dry flue gas desulfurization by-product from a demonstration lime injection multistage burner (LIMB) process are being evaluated. The latter material contains substantial portions of available lime and may prove amenable as a solidifying agent with the fly ash. This paper describes initial results on the waste characterization, solidified/stabilized waste form formulation, and influence of liquid/solid ratio on metal leaching from the waste forms. Keywords: stabilization/solidification, fixation, fly ash, flue gas desulfurization sludge, leaching, metals, LIMB ash Paper ID: STP19545S Committee/Subcommittee: D34.07 DOI: 10.1520/STP19545S ASTM International is a member of CrossRef. | ||