SEMI-WET TREATMENT PROCESS FOR FUMES INCLUDING DECARBONATION OF SPRAYED WATER ON FUMES

摘要

P In a semi-wet smoke treatment process to eliminate at least one polluting agent from these fumes (HCL, SO2, HF), according to which the sprayed fumes are sprayed inside a reactor (1) treat, a mixture of lime milk from a first supply circuit whose flow is controlled by a measurement of the quantity of polluting agent present in the flue gases at the outlet of the reactor and of industrial water coming from a second supply circuit, the flow of which is controlled by a measurement of the temperature of the flue gases at the outlet of the reactor, a decarbonation treatment of industrial water is carried out on the industrial water supply circuit, prior to its mixing with milk of lime. This decarbonation treatment prevents fouling of the spray nozzles (10) of the reactor. /P