Effect of pectin on anaerobic digestion of cattle dung

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Biotechnol. Bioeng. Symp.; (United States)

DOI:https://doi.org/10.1002/bit.260280423· OSTI ID:5368415

Madamwar, D B; Mithal, B M

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), Journal Name: Biotechnol. Bioeng. Symp.; (United States) Vol. 28:4; ISSN BIBSB
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ABSORPTION
ACTIVATED CARBON
ADSORBENTS
AGRICULTURAL WASTES
ALKANES
ANAEROBIC DIGESTION
BENCH-SCALE EXPERIMENTS
BIOCONVERSION
BIOREACTORS
BLOOD SUBSTITUTES
CARBOHYDRATES
CARBON
CATALYTIC EFFECTS
CONTROL
DIGESTION
DRUGS
ELEMENTS
GAS YIELDS
HEMATOLOGIC AGENTS
HYDROCARBONS
MANAGEMENT
MANURES
METHANE
NONMETALS
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC WASTES
PECTINS
PH VALUE
POLYSACCHARIDES
PROCESSING
PRODUCTION
SACCHARIDES
SUBSTRATES
TEMPERATURE CONTROL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YIELDS