Performance characteristics of anaerobic downflow stationary fixed film reactors

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:5879134

van den Berg, L; Kennedy, K J

Stationary fixed film reactors operated to ensure a net downflow of substrate have several characteristics different from other retained biomass reactors. The active biomass attaches itself to stationary surface and hence is difficult to wash out. Performance is related to the surface-to-volume of the film support as well as to the composition of the support. Methane production rates of up to 8 cym day at loading rates of up to 30 kg COD/m cym day, are possible. Severe hydraulic and organic overloadings can be tolerated with operation back to normal 24 hours following cessation of mistreatment. Reactors can operate with dilute and concentrated wastes (4000-130,000 mg COD/L) and can change readily over from one waste to another. Intermittent loading at high loading rates are possible. Methane production rates and loading rates decreased linearly with temperature (35) to 10); at 10 C they were about 20% of those at 35 C.

• Research Organization: National Research Council of Canada, Ottawa, Ontario. Div. of Biological Sciences
• OSTI ID: 5879134
• Report Number(s): AD-P-000789/8; CONF-820485-
• Resource Relation: Conference: 1. international conference on fixed-film biological processes, Kings Island, OH, USA, 20 Apr 1982
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ANAEROBIC DIGESTION
CHEMICAL REACTORS
METHANE
PRODUCTION
WASTE WATER
FERMENTATION
FILMS
OPERATION
SUBSTRATES
WATER TREATMENT
ALKANES
BIOCONVERSION
DIGESTION
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)