| 摘要 |
<p>PURPOSE:To perfectly prevent the adhesion of air bubbles to the wall surface of a water tank by removing ammonia generated in the water of the water tank by arranging in parallel a denitrifying module and a nitrifying module as water purifying modules and arranging an air bubble elimination apparatus on the downstream side of both modules. CONSTITUTION:A water purifying apparatus 1 is arranged between the water forcible circulation flow passages 3a, 3b of a water tank 2. The org. matter or ammonia generated in the water tank 2 is oxidized and decomposed to nitrate in a nitrifying module 7 to which oxygen is supplied by a jet stream apparatus 9 and this nitrate returns to the water tank and enters a denitrifying module 10 to be decomposed to nitrogen and water and low in oxygen concn. Thus, clean water is always held in the water tank, and when water containing many air bubbles returns to the water tank, air bubbles are bonded to the wall surface of the water tank to make the interior of the water tank hard to look and, therefore, an apparatus for eliminating air bubbles is arranged to the outlet of the flow passage 3b to make it possible to remove contained air bubbles by ejector effect.</p> |
