Perhaps we have fallen into the trap of having a solution before there was a problem, but. . .
We were almost immediately inspired to think a lot about reactor, jacket structures upon using our 3-D RepRap printer, because of the adjustable fill patterns between the solid shells that make up a typical low cost 3-D print. It may be fairly easy to realize some nice multiply jacketed structures. These fill areas can be of very low or very high density/surface area with a simple change of the settings of the slicer program (eg Slcr) We think you could do a lot of prototyping to get an ideal structure, but we may be too limited in the scale of objects that we can produce.
We're interested really in a more continuous biological production of high value materials, without dealing with the separation or cleaning of a lot of algae biomass. I suppose the ideal organism would secrete the product, while taking in whatever is being processed. I'm hoping that there has been some progress with engineered algae so that virtually no processing of the biomass is needed, but perhaps algae is not the ideal organism to use in a reactor with the size and scale possible using a low cost 3-d printer. We were almost immediately inspired to think a lot about reactor, jacket structures upon using our 3-D RepRap printer, because of the adjustable fill patterns between the solid shells that make up a typical low cost 3-D print. It may be fairly easy to realize some nice multiply jacketed structures. These fill areas can be of very low or very high density/surface area with a simple change of the settings of the slicer program (eg Slcr) We think you could do a lot of prototyping to get an ideal structure, but we may be too limited in the scale of objects that we can produce.
Obviously large structures done with 3-d printers are not that easy, and I appreciate your practical advice Eugen. Any practical guidance or relating of experiences from anyone with ideas on compact bio-reactors designed for more or less continuous, rather than batch, production of lipid materials would be great.
On Tue, May 28, 2013 at 5:23 AM, Eugen Leitl <eugen@leitl.org> wrote:
On Tue, May 28, 2013 at 01:56:48AM -0700, Nathan McCorkle wrote:Something like http://www.vegcar.net/wp/wp-content/artalgae.jpg
> Eugen can you provide a conceptual drawing?
The important part is preventing overheating or freezing
(in colder climes) so I would make above narrower (say,
30 cm) in a meander, and concentrically jacket into one
polymer film tube for water and maybe another inflated with air,
for insulation.
--
> On May 28, 2013 1:45 AM, "Eugen Leitl" <eugen@leitl.org> wrote:
>
> > On Mon, May 27, 2013 at 02:38:37PM -0400, Steven Stowell wrote:
> > > We are dreaming of using our 3-D printer to make bio-reactors, with algae
> > > being a candidate organism.
> >
> > Have you considered using a meander made from heat-welded
> > polymer film, with a temperizing water jacket made from
> > a polymer tube (and maybe a third, air-inflated jacket
> > for insulation)?
> >
> > You could hang these vertically.
> >
> > > To help either inspire or discourage, Scott Williams, PhD, and Julian
> > > Rosenberg, two Johns Hopkins researchers have agreed to come by and talk
> > > about Maryland research being done on algae for fuels, and genetically
> > > modified algae for other high value substances like polymers,
> > > pharmaceuticals, food, etc.
> > >
> > > We expect this to be a frank give and take discussion about practical
> > > issues. Please stop by if you can
> > >
> > http://www.bugssonline.org/2/post/2013/05/can-green-slime-save-the-world-algae-talk-friday-may-31-700-pm.html
> >
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Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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