WATER TREATING SYSTEM

摘要

PURPOSE:To efficiently remove reductive sulfide by providing both an anaerobic treating means and a degassing means having an evacuating means. CONSTITUTION:Water to be treated is introduced into an anaerobic treating tank 2 through a pipeline 1 and subjected to anaerobic treatment. Treated water is taken out through a pipeline 3 and introduced into a degassing tower 6 via a water sealing tank 4 and a pipeline 5. A sprinkler 6a is provided to the upper part of the inside of the degassing tower 6 and the anaerobically treated water introduced thereinto is uniformly sprinkled in the tower. An evacuating pump 11 is connected to the degassing tower 6 and the inside thereof is evacuated. The gas discharge side of the evacuating pump 11 is connected to a desulfurization device 13 via a pipeline 12. Digested gas fed from the anaerobic treating tank 2 is introduced into the desulfurization device 13 via a pipeline 14. Thereby the treated water wherein reductive sulfide is sufficiently removed is obtained.