| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid a problem of salt disposal and injury from salt by extracting a reutilizable valuable substance from a salt formed at the time of dry treatment of exhaust gas discharged from incineration equipment using a sodium type reactant. SOLUTION: The dry exhaust gas treatment system using the sodium type reactant is provided with a dissolving tank 3 for dissolving a reaction product collected and recovered by a dust collector 2 to form a salt solution, a filter tank 4 for removing the solid component in the salt solution sent out of the dissolving tank 3, a heavy metal collecting chelate column 5 for removing heavy metals in the salt solution sent out of the filter tank 4, a scale removing chelate column 6 for removing the scale component in the salt solution sent out of the heavy metal collecting chelate column 5 and a bipolar electrodialyzer 7 for electrodialyzing the salt solution sent out of the scale removing chelate column 6.</p> |
