Record Display for the EPA National Library Catalog

RECORD NUMBER: 105 OF 117

OLS Field Name OLS Field Data
Main Title Studies of Benzidine-Based Dyes in Sediment-Water Systems.
Author Weber., E. J. ;
CORP Author Environmental Research Lab., Athens, GA.
Publisher c1991
Year Published 1991
Stock Number PB91-196659
Additional Subjects Dyes ; Benzidine ; Sediments ; Water ; Biodegradation ; Sorption ; Reaction kinetics ; Water pollution ; Ponds ; Anaerobic conditions ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB91-196659 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1991
Collation 12p
Abstract
The sorption and degradation of several benzidine-based dyes were studied in sediment-water systems. Studies in resaturated sediment demonstrated that sorption was strongly dependent on pH and the nature and concentration of the inorganic salt in solution. Degradation of the dyes in anaerobic pond sediment followed pseudo-first-order kinetics with half-lives ranging from 2 to 16 d. Product studies indicated that the amount of recovered benzidine accounted for only 2 to 5% of lost Direct Red 28. Studies in pH-amended pond sediment demonstrated that degradation is inhibited when the dyes are strongly sorbed to the sediment.