REGENERATING AGENT FOR HYDROGEN SULFIDE REMOVING AGENT AND METHOD AND APPARATUS FOR REGENERATING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a technique for treating a hydrogen sulfide removing agent consisting essentially of iron oxide into safe waste or recovering the hydrogen sulfide adsorbing function thereof after being used for removing hydro gen sulfide generated in a sewage treatment site. SOLUTION: A treating agent 8 for regenerating the hydrogen sulfide removing agent 1 consisting essentially of iron oxide by dipping or the like consists of a hydroxide of an alkali metal or alkaline earth metal and an oxidizing agent. Further, a surfactant can be added, sometimes aeration into the regenerating treating agent is carried out. At least 2 desulfurization columns 2 and 3 are mounted as a hydrogen sulfide removing apparatus. While the hydrogen sulfide removing treatment is performed in one of the desulfurization columns, the regenerating treatment can be performed in another column.