Patrick,

Oil from Algae Yahoogroup
>
> A way to get around the filtration problems with picoalgae may be
froth
> separation. If you pump the algae in the growth solution into a
vertical
> column and bubble air up through column, the algae will be
captured on the
> froth and floated out the top of the column.
>
> Some researchers used it on algae and it worked – they had to alter
the PH
> to get it to work – I seem to remember they had to raise it – since
yours is
> already high, it may work as is.
>
> Salt water aquariums use these – they call them protein skimmers.
The easy
> way to build one might involve a trip to your local aquarium store
(or yard
> sale).
>
> There have been posts in the past that gave a reference to the
research.
> (But I believe the aquarium version is more technically advanced
than what
> they cobbled up.)
>
> –
> Toward freedom,
>
> Bobby Yates Emory

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