Aidan Williamson

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Member for
10 years 6 months


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In 50 characters or less... Posted by Post date Last comment Number of Comments # of Comments new to you
What is the purpose of the polishing column? Aidan Williamson Friday, March 20, 2015 - 6:32pm Wednesday, March 25, 2015 - 8:29pm 6
Status Aidan Williamson Thursday, February 20, 2014 - 5:38pm Friday, February 21, 2014 - 8:06pm 5

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Aidan Williamson's picture

Hi Matt,

Did you come up with something for your peanuts? I am currently in Belize and thinking of heading to Guatemala. Where in Guatemala are you located? Perhaps i could be of assistance to you. I am good at making machines and i come with my small arc welder so together we could fabricate something.

For an example of my work see the Water Wheel Transplanter or my log at



Aidan Williamson's picture

I see now that the information I sought is on the turner biodiesel website.

Thanks for uploading the diagram of your system, Dorn. Where are the filters and what sizes are they?

Aidan Williamson's picture

That would be great! How many gallons before you need to change the media? Do you have an estimate of cost/gal to use this method? This source says 2-4 cents per gallon with DW-resin.

Aidan Williamson's picture

Actually I found some on my own. Where did you buy the column itself?

Aidan Williamson's picture

From reading at I gathered that it is good to eliminate water-washing as it leaves the water contaminated. Can you direct me to a resource where I might read more about the polishing column's function? So you put the hardwood chips in the polishing column and press the methyl esters through like a filter? Thanks for your response.

Aidan Williamson's picture

Wow, awesome. Do you have funding through GreenStart for this? If so, could you talk about that?

Are you considering opening the build of the processor to the public? If it's happening this summer then I would love to come out and learn first-hand the process of fabricating it.

Aidan Williamson's picture

Weird. Is there a way to put it back?

Aidan Williamson's picture

Thanks. In the upper left corner of a google doc there is a blue button that says "SHARE"

When you click it select HTML for Embedding or something of that sort and it generates an html code that you can copy -> paste into the page here. I had to resize it to width=1000 to make it look OK.