| 摘要 |
<p>PURPOSE:To efficiently remove the BOD, COD, SS, and T-P in sewage by treating the sewage in a contact vessel having plural plastic rotary disks and contact filter mediums made of iron sheet and provided between the respective rotary disks. CONSTITUTION:Plural plastic rotary disks 5 fixed to a rotating shaft 3 and the contact filter mediums 6 made of iron sheet and provided between the respective rotary disks 5 are furnished in the contact treating vessel 1. A settling vessel 2 is provided in succession to the contact treating vessel 1. The BOD, COD, SS, and T-P in sewage can be efficiently removed by using this contact treating vessel 1.</p> |
