Laboratory scale anaerobic digestion of fruit and vegetable solid waste

Anaerobic digestions that were fed waste apple, corn cobs, apple press cake, extracted sugarbeet pulp, pineapple pressings or asparagus waste were stable in trials lasting up to 226 days. Loading rates of 3·5−4·25 kg m −3 day −1 and conversions of 88–96% of the organic solids fed were obtained by en...

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Bibliographic Details
Published in:Biomass 1984, Vol.5 (4), p.245-259
Main Author: Lane, A.G.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
alkalinity
anaerobic digestion
Applied sciences
Biological and medical sciences
Biotechnology
conversion
Energy
Exact sciences and technology
Food industries
fruit
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Industrial applications and implications. Economical aspects
methane yields
Miscellaneous
Natural energy
Other applications
recycle
supplementation
Use and upgrading of agricultural and food by-products. Biotechnology
Use of agricultural and forest wastes. Biomass use, bioconversion
vegetables
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Summary:Anaerobic digestions that were fed waste apple, corn cobs, apple press cake, extracted sugarbeet pulp, pineapple pressings or asparagus waste were stable in trials lasting up to 226 days. Loading rates of 3·5−4·25 kg m −3 day −1 and conversions of 88–96% of the organic solids fed were obtained by ensuring adequate levels of alkalinity, nitrogen and other nutrients during digestion. Gas yields ranged from 0·429 to 0·568 litre (50–60% methane) per gram organic solids fed. For reasons not understood, gas yields from digestion of apricot waste declined after 63 days from 0·477 to 0·137 litre g −1 of feedstock.
ISSN:0144-4565
1878-2523
DOI:10.1016/0144-4565(84)90072-6