WET WASTE GAS DESULFURIZATION EQUIPMENT AND WET WASTE GAS DESULFURIZATION METHOD

摘要

PURPOSE:To efficiently reduce the amt. of waste water to be finally treated by adding hydrochloric acid to a Ca compd. absorbent slurry having absorbed sulfur oxides and concentrating the slurry added with hydrochloric acid by a heater. CONSTITUTION:The waste combustion gas contg. sulfur oxides is brought into contact with a Ca compd. absorbent slurry to absorb and remove the sulfur oxides in the waste gas. In this case, hydrochloric acid 102 is added to the Ca compd. absorbent slurry 100 having absorbed the sulfur oxides in the waste gas and discharged from a desulfurizer 1 in a waste gas regulating tank 2. The absorbent slurry 21 added with hydrochloric acid and discharged from the regulating tank 2 is concentrated by a heater in a waste water concentration tower 3. As a result, the amt. of waste water to be finally treated is efficiently reduced.