Anaerobic activated carbon filter for the degradation of polycyclic N-aromatic compounds
A simulated coal gasification wastewater containing polycyclic N-aromatics was successfully treated by a pilot-scale, anaerobic expanded-bed granular activated carbon filter. The wastewater contained 3 equal concentrations of indole, quinoline and methylquinoline: 50 mg/l, 150 mg/l and 300 mg/l, and the filter operated under these feed conditions for 881 days. Steady-state removal of COD and DOC exceeded 97 and 98%, respectively. The polycyclic N-aromatic compounds in the effluent were below detection limits until the last stage of the investigation: methylquinoline was the first influent to break through, followed by indole and quinoline. Methane was not detected until after 7 months of start-up. Gas production was reduced and later ceased.
- OSTI ID:
- 5814027
- Journal Information:
- J. - Water Pollut. Control Fed.; (United States), Journal Name: J. - Water Pollut. Control Fed.; (United States) Vol. 56:12; ISSN JWPFA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010800* -- Coal
Lignite
& Peat-- Waste Management
ACTIVATED CARBON
ADSORBENTS
ALKANES
ANAEROBIC CONDITIONS
AROMATICS
AZAARENES
AZINES
AZOLES
BIODEGRADATION
CARBON
CHEMICAL REACTIONS
COAL GASIFICATION PLANTS
DECOMPOSITION
ELEMENTS
FILTERS
FUNCTIONAL MODELS
GRANULAR BED FILTERS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INDOLES
INDUSTRIAL PLANTS
LIQUID WASTES
MECHANICAL FILTERS
METHANE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PILOT PLANTS
POLYCYCLIC AROMATIC HYDROCARBONS
PYRIDINES
PYRROLES
QUINOLINES
WASTE WATER
WASTES
WATER
WATER TREATMENT
WATER TREATMENT PLANTS