| 摘要 |
<p>Finely dispersed waste water is conducted through a heated microorganism treatment zone at from 37 to 72 DEG C while air or oxygen or oxygen-enriched air is supplied to the treatment zone in addition to oxygen dissolved in the waste water. A treatment tank 1 holds filler material 8 onto which is fed waste water from a distributor 4. After trickling over the filler material the treated water is withdrawn from discharge pipe 10 into collecting basin 11, from which it is discharged or recycled to the distributor 4. Air withdrawn through the discharge pipe 10 is replaced by air passing through pipe inlets 14. Heating elements 15 and 16 maintain the temperature of the treatment zone. <IMAGE></p> |
