"The Economy of Wash Water Recycling" is an example that explains an 
absolute. The representation is not an absolute unto itself, 
although the constant of contaminant load ratios applies universally 
no matter what volumes of water or number of washes are used.

A 3:1 wash ratio is what most biodieselers first hear or read about 
when they stumble upon biodiesel. It's also the ratio that very many 
adhere to as they progress, commonly going with what they know works.

That's why it (or its "four wash first cousin") was used in the 

You don't have to find yourself in "agreement" with the volumes or 
the number of washes chosen. The exercise created a visual baseline 
premised upon what is somewhat common and proceeded to show how wash 
water can be recycled and the wastefulness of not recycling.

As for "resolute" mist washers? The only things "resolute" about 
them is that their use often helps to mask poor fuel conversions and 
their design tends to preclude the wash water from picking up its 
maximum contaminant load.

Todd Swearingen

--- In, "skillshare" <[EMAIL PROTECTED]> wrote:
> I'm not sure where he's getting the following numbers:
>  "If the amount of fuel being washed in the top right row was 
> 1,000 gallons and the water were to be discarded after each 
> wash, there would be 4,000 gallons of waste water"
> Even the resolute non-recycling mistwashers don't report such 
> high water use. Is this a typo?
>  Traditional bubblewashing without water recycling usually 
> requires at most 1 1/3 as much water as you start with .
> (I have great success with much, much less, some of it through 
> water recycling. 
> My partner's last bach took only about 10 gallons of fresh water 
> for a 40 gallon batch of fuel, via water recycling)
> Mark
> --- In, Keith Addison <[EMAIL PROTECTED]> 
> wrote:
> > Check out Todd Swearingen's great explanation of why it's a 
> good idea 
> > to recycle the water when washing biodiesel and how it works.
> > 
> >
> > The Economy of Wash Water Recycling
> > 
> > Best
> > 
> > Keith

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