| 摘要 |
<p>PURPOSE:To restore water treatment efficiency within a short period of time by adding at least either one of a nickel compound, a cobalt compound, a nitrogen compound and a phosphoric acid compound to waste water so that those compounds in waste water become a predetermined ratio when water treatment efficiency is lowered by overload. CONSTITUTION:In a fluidized bed type reactor 1, the circulation in the system is performed in upward flow by a circulation pump 2 and the org. matter in waste water is subjected to decomposition treatment by anaerobic bacteria. When water treatment efficiency is lowered by overload, at least either one of a nickel compound, a cobalt compound, a nitrogen compound and a phosphoric acid compound is added to waste water so that these compounds in waste water become a predetermined ratio. By this method, water treatment efficiency can be rapidly restored because of the synergistic effect of the coenzyme production-accelerating action with nickel and cobalt and the sufficient existence of the nitrogen compound and phosphoric acid compound becoming necessary in large quantities at the time of the propagation of bacterial cells.</p> |
