EXHAUST GAS TREATMENT PROCESS FOR WASTE DISPOSAL FACILITY

PROBLEM TO BE SOLVED: To provide an exhaust gas treatment process for a waste disposal facility for preventing the excessive supply of a chemical and reduce the running cost. SOLUTION: The concentration of a residual noxious matter in exhaust gas after the noxious matter removing treatment generated from a combustion chamber 14 is sensed, and based on the sensed value, the amount of a chemical for reducing the noxious matter to be added into the exhaust gas before removing the noxious matter is feed back controlled, and the fluctuation of the amount of combustion air flow rate varying in compliance with the amount of combustion matter fed into the combustion chamber 14 is sensed, and based on the sensed value, the amount of the chemical to be added into the exhaust gas is feed-back-controlled to feed the chemical of optimum amount can be fed into exhaust gas at all times and prevent the wasteful use of the chemical caused by the excessive supply.