Effects of addition of livestock wastes on composting food industry wastes
2004
Kondou, H.(Aichi-ken. Agricultural Research Center, Nagakute (Japan)) | Sakakibara, M. | Masuda, T. | Nakatani, H. | Ichikawa, A.
The present study was conducted to reveal characteristics of the manure which was co-fermented with food industrial wastes (they were derived from supermarkets and convenient stores) and livestock wastes. Four treatments were designed in the present experiment; 1) the forced -aerated composting of a mixture of cow wastes, rice hulls and food industrial wastes, 2) the forced-aerated composting of a mixture of pig wastes, rice hulls and food industrial wastes; 3) the forced-aerated composting of food industrial wastes, 4) the composting of food industrial wastes without forced aeration. These manure were examined for the fermentation temperature, the crude fat content, and the seed germination of Komatsuna (Brassica campestris L.) on the aqueous extract. The results are as follows. 1. Addition of livestock wastes increased the fermentation temperature at the initial stages of composting and sped up composting into manure. 2. The crude fat content of forced-aerated manures decreased to less than 1% after one month of composting, while that of non-aerated manure reduced to less than 1% after two months of composting. 3. The aqueous extract of food industrial waste-manure which was fermented without forced aeration, inhibited the seed germination of Komatsuna. These result indicated that the addition of livestock wastes could improve the efficiency of composting and the decomposition of inhibitors to the seed germination.
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