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Evaluation of Fermentation Extinction Rate of Food Waste according to the Various Types of Wood Chip with Different Pore Structures
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 Title & Authors
Evaluation of Fermentation Extinction Rate of Food Waste according to the Various Types of Wood Chip with Different Pore Structures
Oh, Jeong-Ik; Kim, Hyo-Jin;
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Various types of bio wood chip for fermentation-extinction of food waste was investigated by comparing their different pore structure with the performance of weight loss rate and microbial activity. The fermentation-extinction of food waste with bio wood chip was examined by adding 700~1,500g of food waste every day during 15 days to the fermentation-extinction reactor with condition of temperature and 30~70% humidity, where 1,500g of bio wood chips were existed. The bio wood chips used in this experiment were categorized into 4 different types; microbial-mixing type(A biochip), macro pore type(B biochip) under of pore size, micro pore type of wood-chips(C biochip) under of pore size, viscous & sticky type(D biochip). As a result, A, B, C, D bio wood chip exhibited 85%, 63%, 92%, 73% weight loss of food waste with fermentation-extinction. The maximum weight loss of food waste was obtained at the fermentation-extinction experiments by using C bio wood chip. On the other hands, the maximum ratio of ATP to COD and TN was obtained from and in the case of C bio wood chip, comparing with other types of bio wood chip. Consequently, the performance of weight loss rate was affected with the micro pore structure of bio wood chip which have an advantage of extensive microbial activity space in the fermentation-extinction of food waste.
Bio Wood Chip;Fermentation-extinction;Food Waste;Pore Structure;Weight Loss;
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