Method for processing organic solvent-containing air

A method for processing an organic solvent-containing air comprising carrying out simultaneously and continuously a dehumidification step (a) comprising causing an air to be dehumidified to flow through a dehumidifying member to remove moisture in the air to be dehumidified, an adsorption-removing step (b) comprising causing the dehumidified air containing organic solvents to flow through an adsorbing member to remove the organic solvents by adsorption, an adsorbing member-regeneration step (c) comprising causing an adsorbing member-regeneration air to flow through the adsorbing member which has adsorbed organic solvents to regenerate the adsorbing member, a combustion step (d) comprising supplying a concentrated air produced in the adsorbing member-regeneration step to a combustion furnace and burning the organic solvents in the concentrated air, and a dehumidifying member-regeneration step (e) comprising mixing the adsorption-treated air produced in the adsorbing-removing step (b) with a combustion furnace exhaust gas produced in the combustion step (d) to obtain a mixed gas, decomposing the organic solvents in the mixed gas by oxidation, and causing the resulting purified gas to flow through the dehumidifying member which has adsorbed moisture, thereby regenerating the dehumidifying member.