Influence of redox potential on the anaerobic biotransformation of nitrogen-heterocyclic compounds in anoxic freshwater sediments (revised)

Technical Report · Wed Jun 01 04:00:00 EDT 1994

OSTI ID:6874096

Liu, S M; Jones, W J; Rogers, J E

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.

• Research Organization: Georgia Univ., Athens, GA (United States)
• OSTI ID: 6874096
• Report Number(s): PB-95-136818/XAB; CNN: EPA-R819053
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ANAEROBIC DIGESTION
AROMATICS
AZAARENES
AZINES
AZOLES
BIOCONVERSION
CARBAZOLES
DIGESTION
HETEROCYCLIC COMPOUNDS
INDOLES
MANAGEMENT
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROCESSING
PYRIDINES
PYRROLES
QUINOLINES
REDOX POTENTIAL
SEDIMENTS
WASTE MANAGEMENT
WASTE PROCESSING