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Main Title Influence of Redox Potential on the Anaerobic Biotransformation of Nitrogen-Heterocyclic Compounds in Anoxic Freshwater Sediments (Revised).
Author Liu, S. M. ; Jones, W. J. ; Rogers, J. E. ;
CORP Author Georgia Univ., Athens.;Environmental Research Lab., Athens, GA.
Publisher cJun 94
Year Published 1994
Report Number EPA-R819053; EPA/600/J-94/477;
Stock Number PB95-136818
Additional Subjects Sediments ; Anaerobic processes ; Nitrogen heterocyclic compounds ; Reprints ; Biotechnology ; Electrode potentials ; Pyridines ; Quinolines ; Carbazoles ; Indoles ; Sediment water interfaces ; Reduction(Chemistry) ; Methanogenesis ; Denitrification
Library Call Number Additional Info Location Last
NTIS  PB95-136818 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
The potential for degradation of four nitrogen-heterocyclic compounds was investigated in freshwater sediment slurries maintained under denitrifying, sulfate-reducing and methanogenic conditions. Pyridine (10 mg/1) was rapidly transformed within 4 weeks under denitrifying conditions but persisted for up to 3 months under sulfate-reducing and methanogenic conditions. Quinoline (10 mg/1) was completely transformed without a lag phase under methanogenic and sulfate-reducing conditions after incubation for 23 and 45 days, respectively. Under denitrifying conditions, less than 23% of the initial concentration of quinoline was transformed after anaerobic incubation for 83 days. Indole, however, was completely removed from sediment slurries under denitrifying, sulfate-reducing, and methanogenic conditions after anaerobic incubation for 18, 27, and 17 days, respectively. No evidence for biotransformation of carbazole was noted for all anaerobic conditions tested.