Waste water aerobic treatment assembly comprises rotating drum

摘要

Waste water aerobic treatment assembly comprises a rotating polyethylene drum resting on bearings (9) at each end. The drum (1) is made up of a series of two types of alternating disc plates, one set (13) with a napped finish and the other (10) smooth. The drum (1) has end-discs (14), the napped plates (13) have short hollow naps (19) and the end-bearings (9) are fitted to height-adjustable supports(17).