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-3day-1and 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-1of feedstock. © 1984.
Mendeley saves you time finding and organizing research
Choose a citation style from the tabs below