| 摘要 |
<p>A method and apparatus relating to the of treatment of a liquid by passing said liquid through a fluidised bed of particulate materials in which a biofilm as a reactant moiety is carried on carrier particles constituting the fluidised bed within a bioreactor having a base, whereby said bed is fluidised by the upwards passage of said liquid therethrough. The method and apparatus are characterised by, the removing and recycling of, and a means for removing and recycling, carrier particles having an excess of biofilm on their surface from an upper part of the fluidised bed, and injecting them towards the base of the bioreactor. This has the advantage of controlling the thickness of the biofilm which may be carried by the fluidized particles by the stripping of excess biofilm from the carrier particles.</p> |
