| 摘要 |
<p>An apparatus which recycles a spent sulfuric acid, for use in recovering a spent sulfuric acid discharged from a source A, transporting it by a transporting means B and using it in a user C, characterized in that it comprises a receiving tank for receiving (A) a fresh sulfuric acid and (B) a spent sulfuric acid having a concentration different from that of the fresh sulfuric acid, and also comprises (a) a mixer, (b) a mixer and a concentration measuring device or a cooler, or (c) a mixer and a concentration measuring device and a cooler. The apparatus allows a spent sulfuric acid to be advantageously recycled in an industrial way and to be used as a recycled sulfuric acid having a high added value.</p> |
