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KMID : 1171820030180040036
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Journal of Environmental and Sanitary Engineering
2003 Volume.18 No. 4 p.36 ~ p.44
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The Effect of Cement Admixtures on Solidification of Tannery Sludge based Cement Method
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Ju So-Young
Park Sang-Chan
Jun Tae-Sung
Sohn Jong-Ryeul
Kim Tae-Young
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Abstract
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The cement-based system among S/S(SolidificationiStabilization) is widely used to treat hazardous wastes, In this study, tannery sludge was solidified to evaluate the stabilization effects of using admixtures in the cement-based S/5. Fly ash as substitute also used to increase the strength of the S/S of hazardous waste. The compressive strength measurement and leaching experiment solidified mortar were carried out to compare and evaluate the characteristics of solidified hazardous waste sludge. From the result of this study. there was increased AEW-3(early-hardening AE water reducing agent), and became low enough to satisfy the regulatory criteria. The successful solidification for the organic contaminant and heavy metal in hazardous waste should enable to treat by cement-based system using early-hardening AE water reducing admixture and fly ash as substituted cement.
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