Abstract
The hydrogen production from food processing waste by anaerobic microflora was investigated by using batch culture at 35°C. The change in solid concentration ranging from 2.3 to 9.2% had no significant effects on the final amount of hydrogen production from one unit weight of volatile solids. Maximum hydrogen yield was 0.020m3·kgVS-1 at a solid concentration of 6.4%. The hydrogen contents of fermentation gas produced were 54 to 87%. Hydrogen was produced during the degradation of soluble sugars in the liquid phase. Acetate, propionate, n-butyrate and ethanol were the main products from fermentation of food processing waste.
