Development of the Efficient Conversion System of Kitchen Waste to Bio-Ethanol and Biogas

N. Osaka, T. Takahashi, Y. Koike, S. Morimura, Y.-Q. Tang & K. Kida
In Japan, industry kitchen wastes with a high water content (up to 80 weight %) disposed from such commercial premises as restaurants and food stores have usually been treated by incineration. With a better treatment method in mind, we have developed an ethanol and methane fermentation system for the kitchen waste, in which starch is converted to bio-ethanol, whereas biogas (methane) is generated from the residue and other substances (proteins, fat, and like). Furthermore, we...