| 摘要 |
PROBLEM TO BE SOLVED: To process sludge according to various applications in order to effectively utilize the sludge. SOLUTION: The heat treatment process for the sludge comprising a drying process of drying the sludge of raw material in a drying furnace 2 and a thermal decomposition process of heat treating the dried sludge obtained from the above process further in a carbonization furnace 5 has a process of supplying the dried sludge to either of the outside of the system and the thermal decomposition process and arbitrarily obtains either of the dried sludge and the carbonized sludge. At this time, the changeover of the supply to the outside of the system of the dried sludge or thermal decomposition process is performed by a supply changeover means 3. COPYRIGHT: (C)2005,JPO&NCIPI
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