OLS : Record

RECORD NUMBER: 14 OF 27

Main Title

Sorption, Important in Stabilized/Solidified Waste Forms.

Author

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

Control Number

411924841

Cataloging Source

NTIS/MT

Origin

NTIS

Type

CAT

OLS : Record

RECORD NUMBER: 14 OF 27

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