| 摘要 |
PROBLEM TO BE SOLVED: To treat extract containing much salts by a simple method in the case pyrolytic gas containing combustible dust generated from a waste gasification furnace of fluidized bed type is subjected to solid-gas separation and the salts are removed from the separated combustible dust by washing. SOLUTION: In this treating method, waste is thermally decomposed/gasified by partial combustion in a gasification furnace of fluidized bed type and the pyrolytic gas containing combustible dust generated from the gasification furnace 1 is subjected to solid-gas separation to separate it into the combustible dust and the pyrolytic gas, and from the separated combustible dust, salts are removed by washing. In this case, extract generated when the salts are removed from the combustible dust is sprayed into a waste gas temperature controller 13 to evaporate it.
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