I am having some trouble figuring out this problem - hoping someone could help.
I have recently made a 25 gallon batch of biodiesel, which came out a bit
murky. I have since washed the fuel five times with the bubble wash method -
for at least 12 hours at a time. The water from the last wash was much clearer
than previous washes - almost nothing coming out of the biodiesel. The
specific gravity checks out at .88 at 60deg F. The wierd thing is that the pH
meter I have (it is a nice, new Oakton digital pH meter, recently calibrated)
tells me variously that the pH is either over range, or somewhere around 12.5!!
I find this impossible to believe, but I have no good explanation for the
reading. The titration for the batch came out at only 4g/liter - no huge
amount of NaOH. Does anyone know if there would be something in the biodiesel
that would cause the meter to freak out? I have yet to put a batch of
biodiesel into a vehicle. This well-washed fuel is clear, amber, and right
specific gravity - just wierd pH. I am nervous to discount the meter reading
and put it in the tank for the first go.
Any thoughts?
- Thanks for the responses on the methane digestor - very useful links and
contacts.
-Jack
Jack Kenworthy
Sustainable Systems Director
The Cape Eleuthera Island School
242-359-7625 ph. 242-359-7697 fax
www.islandschool.org
----- Original Message -----
From: Greg and April
To: biofuel@yahoogroups.com
Sent: Wednesday, November 27, 2002 11:45 AM
Subject: [biofuel] Fw: Micro Hydro Power
Found this on another list, and thought that a few people here would be
interested.
Greg H.
----- Original Message -----
Sent: Wednesday, November 27, 2002 07:32
Subject: Micro Hydro Power
> Energy Systems and Designs offers the "Stream Engine", which might help
you
> power equipment in your greenhouse, should you have some running water in
> your nearby watershed.
>
> http://www.microhydropower.com/index2.htm
>
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