| 摘要 |
PROBLEM TO BE SOLVED: To provide solid fuel which consists essentially of sewage sludge, and whose peculiar odor characteristic of sewage sludge is suppressed, and also, commercial value as solid fuel is high. SOLUTION: Sewage sludge is heated and dried in the presence of pyroligneous acid, so as to obtain solid fuel consisting essentially of sewage sludge, and in which peculiar odor characteristic of sewage sludge is suppressed, and also commercial value as solid fuel is high. COPYRIGHT: (C)2009,JPO&INPIT
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