PROBLEM TO BE SOLVED: To provide a combustive decomposition method of harmful substances in an efficient gas stream.;SOLUTION: This removal method of harmful substances from gas stream is a method for combustive decomposition of the harmful substances in the gas stream, therein, the gas stream is poured into a heating chamber which has oxygen sufficient to enable substancially perfect combustion therein, and at the same time, hydrogen exists in the chamber as a combustion gas.;COPYRIGHT: (C)2002,JPO
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