A METHOD FOR TREATING HALOGEN COMPOUND AQUEOUS SOLUTION, ACIDIC SOLUTION, OR ACIDIC GAS AND AN APPARATUS FOR TREATING THEM

摘要

For detoxifying a halogen compound aqueous solution, acid aqueous solution or an acidic gas, efficiency is an object of the present invention to provide an excellent method and apparatus. According to the present invention To this end, the introduction of an aqueous solution containing calcium hydroxide (Ca (OH) ₂₎ or hydrogen chloride (HCl) in the dissolving tank 30 for accommodating the bulk material or the particulate material consisting of calcium carbonate (CaCO _3), the aqueous solution a settling tank 20 to which an aqueous solution is applied comprising the melting vessel (30) is reacted in a hydrogen chloride (HCl) of calcium chloride (CaCl _2), converted to the aqueous solution, the conversion comprising a calcium chloride (CaCl ₂₎ an aqueous solution comprising, halide aqueous solution, introducing the aqueous acid solution or an acidic gas is characterized in that to extract precipitated a halide aqueous solution, acid aqueous solution or an acidic gas I as soluble calcium compound.