| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an improvement type electrolytic regeneration treating system capable of safely treating the problem of gaseous chlorine without increasing the running cost. SOLUTION: The solution return path from an electrolytic cell 2 to an etching cell 1 is arranged with a regeneration solution cell 3 having a circulating path provided with an ejector 31, gaseous chlorine separated by a gas-liquid separating means 28 fitted to the electrolytic cell is sucked by pressure reducing action by the ejector, moreover, an etching solution introduced from the etching cell is brought into gas-liquid contact with the gaseous chlorine, furthermore, an exhaust gas cleaning means for removing the gaseous chlorine components in the gas retained in the upper spaces of the electrolytic cell and the regeneration solution cell respectively having sealed structure is provided, and, in the exhaust gas cleaning means, the etching solution is brought into contact with the suction gas, and the removal of the gaseous chlorine components is executed.</p> |
