| 摘要 |
<p>PURPOSE:To provide the purifying device of single vessel which can highly remove BOD, SS, and COD, and perform denitration without installing a presedimentation tank at the front stage, can obtain very clear treated water and can be washed without consumption of treating water. CONSTITUTION:The packed layer A which is immersed into a clarifying tank and packed with bacteria adsorbing activated carbon is installed, the packed layer B which is packed with a granular filter medium is installed at the lower part of the supporting bed of the packed layer A, moreover, the packed layer C which is packed with a granular filter medium is installed at the lower part of the layer with a porous water passing medium, raw water is fed from the lower part of the packed layer C and allowed to flow upward, diffusing part of oxygen containing gas is installed at the lower part of the packed layer C at least, and the outlet of treating water is installed at the upper side of the packed layer A.</p> |
