Biodiesel and SVO Forums Home
washing with enzymes

This topic can be found at:

December 13, 2014, 01:21 PM
washing with enzymes
as u seen in my previous post i tried washing with magnesium (bad news) i decided to try enzyme. wow to my amazement it seems to work wonders (fingers crossed) but still need to have the bio tested. this is what i have done.
do 5% pre wash and remove all glycerol. transfer bio to wash tank and add 5% of volume enzyme to unwashed bio. bubble aggressive for an hour...settle and drain till bio looks clear... (DONE A 50/50 WATER TEST AT THIS STAGE AND WATER WAS CLEAR...NO SOAP LAYER AT ALL)
for safety sake i done 1 water wash..
what i need to knw is...
1) do i have to do the water wash as it seems there's no soap at all.
2) could it be that the enzyme neutralized the soaps/methanol etc with the bio ?
3) whats you guys expert opinion on using sulfuric acid before doing water wash
December 13, 2014, 06:19 PM
DONT use sulphuric acid before you water wash, it will convert the soap to FFA's.

I'm afraid I don't know enough about washing with enzymes to advise you.

This message has been edited. Last edited by: Dgs,
December 14, 2014, 10:41 AM
As dgs said any acid you add will put the ffa back into the biodiesel. Test, take some vinegar or other acid, solder paste for example, and rub it on a bar of soap and see the gooy oily mess you make.
what are you using for enzymes?

" I don't know what I don't know until I know"
1994 GMC 6.5 Tubo 2005 Dodge ram 3500, 3 VW's 2000, 2002, 2005.