| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and a system for treating incineration ash, in each of which chlorine contained in the incineration ash can be reduced surely to the definite concentration or less by washing the incineration ash with water. Ž<P>SOLUTION: The system for treating incineration ash is provided with a water washing facility 100 for washing the incineration ash 30 with water to remove the chlorine contained in the incineration ash. An unburnt content measuring means 1 for measuring a residual rate of the unburnt content of the incineration ash and a sorting means 2 for sorting the incineration ash on the basis of the residual rate of the unburnt content are arranged in the preceding stages of the water washing facility 100. Only the incineration ash 32 which is sorted by the sorting means 2 and has the residual rate, which is lower than a predetermined threshold, of the unburnt content, is sent to the water washing facility 100. The incineration ash 31 having the residual rate, which is not lower than the threshold, of the unburnt content is preferably thrown in a heating furnace or returned to an incineration furnace and reheated therein. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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