Record Display for the EPA National Library Catalog


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
Library Call Number Additional Info Location Last
NTIS  PB84-123876 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
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.