Performance of an upflow anaerobic reactor combining a sludge blanket and a filter treating sugar waste
A new hybrid reactor, the upflow blanket filter (UBF), which combines an open volume in the bottom two-thirds of the reactor for a sludge blanket and submerged plastic rings (Flexiring, Koch Inc., 235 squared m/cubic m) in the upper one-third of the reactor volume, was studied. This UBF reactor was operated at 27 degrees C at loading rates varying from 5 to 51 g chemical oxygen demand (COD)/l day with soluble sugar wastewater (2500 mg COD/l). Maximum removal rates of 34 g COD/l day and CH/sub 4/ production rates of 7 vol/vol day (standard temperature and pressure (STP)) were obtained. The biomass activity was about 1.2 g COD/g volatile suspended solids per day. Conversion (based on effluent soluble COD) was over 93% with loading rates up to 26 g COD/l day. At higher loading rates conversion decreased rapidly. The packing was very efficient in retaining biomass. 11 references.
- Research Organization:
- National Research Council of Canada, Ottawa
- OSTI ID:
- 5247146
- Journal Information:
- Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 27:6; ISSN BIBIA
- Country of Publication:
- United States
- Language:
- English
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ALKANES
ANAEROBIC DIGESTION
BIOCONVERSION
BIOREACTORS
CHEMICAL OXYGEN DEMAND
DESIGN
DIGESTION
GAS YIELDS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
LOADING RATE
MANAGEMENT
MESOPHILIC CONDITIONS
METHANE
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PROCESSING
TESTING
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
YIELDS