Physicothermochemical pretreatments of food processing waste for enchancing anaerobic digestion and biogas generation
- National Research Centre, Cairo (Egypt) Menoufia Univ., Sadat City (Egypt)
- Menoufia Univ., Sadat City (Egypt)
This paper was conducted to evaluate the effect of milling and alkali lime cooking pretreatments on the rate and extent of methane generation from sugar Cane bagasse. The effect of pretreatment process variables (Particle size 8.0.003 mm, temperature between 100 and 250[degree]C and alkaline dosage between 0 and 8g CaO/kg VS) on the biogas generation from Sugar Cane bagasse has been investigated. Methane generation from the pretreated cane bagasse was studied using serum bottle technique and an upflow anaerobic filter bioreactor. The optimum condition involves alkali-cooking of cane bagasse (0.5 mm) with 4% CaO at 200[degree]C, dissolving most of the cellulose and converting it in a mixture of organic acids, including formic, acetic, lactic, and succinic acids. About 80% of the COD content of the cellulose was retained in the cooked liquor. A very rapid biogas were observed in the first three days of 70% methane content from the pretreated cane bagasse and the digestion was completed within 8 days. It has been concluded, that the lime-cooking of CB could produce methane as much as 70% of that from glucose. Inhibition did not seems to be serious problem in the biogas generation from the alkali-cooking cane bagasse. 29 refs., 3 figs., 5 tabs.
- OSTI ID:
- 7237338
- Journal Information:
- Journal of Environmental Science and Health, Part A: Environmental Science and Engineering; (United States), Vol. 28:8; ISSN 0360-1226
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
BAGASSE
ANAEROBIC DIGESTION
COMMINUTION
HEAT TREATMENTS
CELLULOSE
ALKALINE HYDROLYSIS
DISSOLUTION
METHANE
BIOSYNTHESIS
BIOREACTORS
CALCIUM OXIDES
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
SUGAR CANE
AGRICULTURAL WASTES
ALKALINE EARTH METAL COMPOUNDS
ALKANES
BIOCONVERSION
CALCIUM COMPOUNDS
CARBOHYDRATES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DIGESTION
GRAMINEAE
HYDROCARBONS
HYDROLYSIS
INFORMATION
KINETICS
LILIOPSIDA
LYSIS
MAGNOLIOPHYTA
MANAGEMENT
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC WASTES
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLYSACCHARIDES
PROCESSING
REACTION KINETICS
REEDS
SACCHARIDES
SOLVOLYSIS
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
090900* - Biomass Fuels- Processing- (1990-)
550200 - Biochemistry