Record Display for the EPA National Library Catalog

RECORD NUMBER: 484 OF 1211

OLS Field Name OLS Field Data
Main Title Extent of Reversibility of Polychlorinated Biphenyl Adsorption.
Author Horzempa, L. M. ; Di Torso, D. M. ;
CORP Author Manhattan Coll., Bronx, NY. Environmental Engineering and Science Program.;Environmental Research Lab.-Duluth, MN.
Year Published 1983
Report Number EPA-R-805229 ;EPA-R-807853; EPA-600/J-83-120;
Stock Number PB84-123876
Additional Subjects Chemical bonds ; Sediments ; Desorption ; Water pollution ; Isotherms ; Chlorine organic compounds ; Adsorption ; Reaction kinetics ; Reprints ; Polychlorinated biphenyls ; Biphenyl/hexachloro
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB84-123876 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 12p
Abstract
The extent of reversibility of PCB bonding to sediments has been characterized in studies on the partitioning behavior of a hexachlorobiphenyl isomer. Linear non-singular isotherms have been observed for the adsorption and desorption of 2,4,5,2',4',5' hexachlorobiphenyl (HCBP) to 1100 ppm sediment suspensions. Evidence from consecutive desorption studies suggests that while HCBP adsorption may ultimately be reversible, release from sediments appeared to involve desorption along two distinct isotherms. These results have been interpreted in terms of possible similarities between the sorption properties observed in the distilled water systems of the present study and PCB bonding processes in natural water systems.