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Pilot-scale testing of fixed-film, fluidized-bed bioreactors for denitrification of process wastewaters

Conference ·
OSTI ID:5849242
; ;
Fluidized-bed bioreactors were tested as processes for denitrifying wastewaters at flows of 23 m/sup 3//d (0.2-m-diam column) and 166 m/sup 3//d (0.5-m-diam column). As average nitrate concentrations were increased from approximately 1000 to 2500 g/m/sup 3/, denitrification rates increased from 25 to 48 kg nitrate-nitrogen/d.m/sup 3/ for 11-min hydraulic retention times. Two 0.2-m-diam bioreactors operated in series on influent nitrate concentrations of 2000 g/m/sup 3/ could produce nitrate effluent concentrations of less than 44 g/m/sup 3/.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5849242
Report Number(s):
CONF-811007-8; ON: DE82002780
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
BIODEGRADATION
CHEMICAL REACTIONS
CHEMICAL REACTORS
DECOMPOSITION
DENITRIFICATION
FLUIDIZED BED
FUNCTIONAL MODELS
HYDROGEN COMPOUNDS
LIQUID WASTES
OXYGEN COMPOUNDS
PILOT PLANTS
WASTE WATER
WASTES
WATER