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Re: Aquatic Plants Digest V5 #41

On Saturday 20 April 2002 02:48 am, Roger Miller wrote:
> You can get a similar effect in biowheels.  The big surface area that is
> cited for biowheels is created by the surface of all the little fibers
> in the fabric.  As soon as you get any biofilm on those fibers the space
> between the fibers gets filled and most of that surface area is lost.

I thought that the big advantage to the biowheels was not that they had gobs 
of surface area, but that they were exposed to atmospheric oxygen, allowing a 
much larger bacterial colony than if submerged.

-- Stephen