摘要 |
<p>In a bio-reactor utilising a floc to form a biomass in a liquid medium, an alternating attached/suspended floc process including a fibre or fibres to the surface of which said floc is attracted and against which the floc is retained; said process further including means to agitate said floc in said liquid medium so as to cause said floc to be dislodged from said surface; said process comprising periodically actuating and deactuating said means to agitate whereby said floc is correspondingly caused to alternate between a suspended and attached state.</p> |