Effect of pectin on anaerobic digestion of cattle dung
It is therefore desirable to discover procedures to increase the rate of digestion. It has been reported that addition of powdered activated carbon results in an increase in total gas production with high methane content. Based on a review of the literature, it is evident that carbon is responsible for improved digestion. The surface of the activated carbon provides adsorption sites where substrate can accumulate, thereby providing high localized substrate concentration. These areas of adsorption provide a more favorable growth environment for bacterial-substrate systems. No study, however, seems to have been made so far on the effect of other additives like pectin on anaerobic digestion of cattle dung. Since pectin is also used as one of the adsorbents in many cases, it appears desirable to study the effect of pectin on anaerobic digestion of cattle dung with the ultimate aim of improving the production of gas with increased methane content. Experiments carried out with this object in view are reported in this paper. The impact of pectin on volatile acid, pH, and process stability has also been examined. This paper presents the results of two sets of experiments involving pectin addition to bench-scale digesters. One set of experiments is carried out at a controlled temperature of 38 +/- 1 degree C, while the other is carried out at ambient temperature-ambient temperature varied from 40 to 15 degrees C, that is from August to November. 14 references.
- Research Organization:
- Birla Institute of Technology and Science, Rajasthan, India
- OSTI ID:
- 5368415
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Vol. 28:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MANURES
ANAEROBIC DIGESTION
PECTINS
CATALYTIC EFFECTS
ABSORPTION
ACTIVATED CARBON
BENCH-SCALE EXPERIMENTS
BIOREACTORS
GAS YIELDS
METHANE
OPTIMIZATION
PH VALUE
PRODUCTION
SUBSTRATES
TEMPERATURE CONTROL
ADSORBENTS
AGRICULTURAL WASTES
ALKANES
BIOCONVERSION
BLOOD SUBSTITUTES
CARBOHYDRATES
CARBON
CONTROL
DIGESTION
DRUGS
ELEMENTS
HEMATOLOGIC AGENTS
HYDROCARBONS
MANAGEMENT
NONMETALS
ORGANIC COMPOUNDS
ORGANIC WASTES
POLYSACCHARIDES
PROCESSING
SACCHARIDES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YIELDS
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)