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http://biodiesel.infopop.cc/eve/forums/a/tpc/f/8361026472/m/1557059873

June 15, 2014, 04:53 PM
Hugo Dippenaar
New and Stumped
Evening All

I have been spending time on the forums reading as much as I can .
But even the searches have not delivered what I am looking for.

Your help would be appreciated

I have gathered about 200 Lt of WVO and let is stand for 2 months Started with a rough filter (Shade cloth 80%)just to get rid of gunk and then started pumping to a settling tank (Cone bottomed)Pump i use is a vanned 110 Lt /min oil transfer pump.

Oil from filtering tank is nice and Clear then it hits the pump and turns in to yellow milkshake/batter

Question is as follows:
1-Do I need to remove the Water from the WVO before pumping.

2-Is the Pump the cause of the emulsion and can it be called a emulsion at this stage

Thanks
Hugo
June 15, 2014, 05:35 PM
john galt
quote:
1-Do I need to remove the Water from the WVO before pumping.

If you're going to use that pump, yes.

consider other options
http://www.burnveg.com/forum/about9-15.html#p14

and learn how to test for water content
http://www.burnveg.com/forum/about72.html



June 15, 2014, 05:55 PM
Hugo Dippenaar
Thank you
June 16, 2014, 10:33 AM
Dgs
hi Hugo,
I have sometimes noticed this myself.

Even though you think the oil is dry, it probably won't be.

After you've let it settle, transfer to the processor and warm to @
40degs C. If there is any free water it will settle to the bottom and you can run it off.

You then need to glycerol pre-wash. This is a common technique
used by lots of home brewers to "condition" the oil and reduce
water content.

If this is your first process you will not have any glycerol from
previous batches. Is there anyone close that can give you some
glycerol?

Read the threads entitled glycerol pre wash,it works really well.
June 16, 2014, 12:53 PM
Hugo Dippenaar
Thank you DGS

I am in Sunny South Africa so Left it in a coned bottomed tank for the day and it is already looking better with separation.

And yes it is my first batch and there are no one in the area to get used Glyc from.
I am on my own in the area as far as I know expect for the 3 commercial operators and the home brewer is frowned upon.

I will investigate the glyc prewash.

John WRT the Pump used the links posted opens with database errors .

I have a 40 lt min pump I will start using.If there are alternative links it would be appreciated
June 16, 2014, 01:54 PM
john galt
The links provided open without problems. Any errors are in your system.