Relationship between methanogenic cofactor content and maximum specific methanogenic activity of anaerobic granular sludges
In this study we investigated whether a relationship exists between the methanogenic activity and the content of specific methanogenic cofactors of granular sludges cultured on different combinations of volatile fatty acids in upflow anaerobic sludge blanket or fluidized-bed reactors. Significant correlations were measured in both cases between the contents of coenzyme F/sub 420/-2 or methanopterin and the maximum specific methanogenic activities on propionate, butyrate, and hydrogen, but not acetate. For both sludges the content of sarcinapterin appeared to be correlated with methanogenic activities on propionate, butyrate, and acetate, but not hydrogen. Similar correlations were measured with regard to the total content of coenzyme F/sub 420/-4 and F/sub 420/-5 sludges from fluidized-bed reactors. The results indicate that the contents of specific methanogenic cofactors measured in anaerobic granular sludges can be used to estimate the hydrogenotrophic or acetotrophic methanogenic potential of these sludges.
- Research Organization:
- Univ. of Nijmegen (Netherlands)
- OSTI ID:
- 6879796
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 54:5; ISSN AEMID
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of acetate, propionate, and butyrate on the thermophilic anaerobic degradation of propionate by methanogenic sludge and defined cultures
High-rate anaerobic treatment of wastewater at low temperatures
Related Subjects
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKANES
ANAEROBIC DIGESTION
BACTERIA
BIOCHEMICAL REACTION KINETICS
BIOCONVERSION
BIOREACTORS
BIOSYNTHESIS
CARBOXYLIC ACIDS
COENZYMES
DIGESTION
FLUIDIZED BEDS
HYDROCARBONS
KINETICS
MANAGEMENT
METHANE
METHANOGENIC BACTERIA
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
PRODUCTIVITY
REACTION KINETICS
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING