| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform treatment effectively without removing microorganism from carrier discs by flowing water and to increase the contact chance with microorganisms to the utmost by accelerating the turbulent flow of raw water because the fluid passing holes of the carrier discs are positions not superposed from an aspect of projection to enhance treatment efficiency. SOLUTION: An org. raw water treatment apparatus 1 utilizing anaerobic microorganisms and an assembled carrier 2 are provided. A housing 1 has a stiff main body 3, a bottom wall 4 and a top plate 5 and also has a raw water inflow port 6 opened to the upper part thereof and a treated water outflow port 7 positioned at the lower part thereof. The assembled carrier 2 is constituted so that a large number of porous carrier discs 8 made of polyethylene for inclusively fixing anaerobic microorganisms are provided in a layered state mutually holding intervals 9 are held and fluid passing holes provided in the entire surface are not mutually superposed from an aspect of projection and, therefore, the direct communication of the inflow port 6 and outflow port 7 arranged in the housing 1 are prevented. The treatment of raw water may be set to a one-pass type or a circulating type.</p> |
