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RECORD NUMBER: 14 OF 26

Main Title Sorption, Important in Stabilized/Solidified Waste Forms.
Author Cheng, K. Y.; Bishop., P. L.;
CORP Author Dames and Moore, Cincinnati, OH. ;Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/140;
Stock Number PB94-155256
Subjects Sorption; Waste treatment; Solidification; Stabilization; Superfund; Technology utilization; Best technology; Hazardous materials; Portland cement type 1; Solid waste disposal; Leaching; Heavy metals; Lead; Arsenic; Cadmium; Reprint; Remedial action; Stabilized/solidified waste
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB94-155256 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/14/1994
Collation 11p
Abstract Sorption is one of the important fixation mechanisms of metals in stabilized/solidified waste forms. In the present work, the sorption-desorption processes active in cement-based waste forms in acetic acid solutions were investigated. Experimental results indicated that the extent of sorption of a metal ion was strongly pH dependent. Cement-based waste forms had similar sorption characteristics as amphorous silica gel. The pH of the sorption edge is 5 to 6.5 for Pb(2+) and As(3+), 6 to 8.5 for Cd(2+), and 8 to 12 for Ca(2+). In addition, almost 90% of the lead and cadmium were leachable at pH 4.5, while nearly 30% of arsenic remained unleached at the same pH. (Copyright (c) Hazardous Waste and Hazardous Materials 1992.)
Supplementary Notes Pub. in Hazardous Waste and Hazardous Materials, v9 n3 p289-296 1992. See also PB90-127473. Prepared in cooperation with Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
NTIS Title Notes Journal article.
Title Annotations Reprint: Sorption, Important in Stabilized/Solidified Waste Forms.
Category Codes 68C; 99B
NTIS Prices PC A03/MF A01
Primary Description 600/14
Document Type NT
Control Number 411924841
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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