[Greenbuilding] GFX Drain Waste Heat Recovery-a darker shade of grey

[Alan Abrams]

Not to osmose on anyone's good ideas, but the case I am perseverating over
is a concrete frame contraption with 250 residents who can't come to
agreement on what color pansies to plant at the entrance, much less major
infrastructure repairs.  So we must deal with the issue completely below
decks, and are stuck with black water that both the residents and the water
authority would be mortified to consider sequestering, osmosing, or in any
way retarding its journey to the treatment plant.  

To be successful, the concept has to be simple enough for the board members
and residents to grasp, reliable enough to sell to the harried building
manager and engineer, and absolutely must have a rapid ROI. 


Just wondering...
Instead of a bazillion GFXs installed thoughout the building, what would  be
wrong with having a central holding arrangement in the basement ...
Or you could dispense with the GFX, why exchange the heat? why not use the
same water? A reverse osmosis system negates most of these  issues. I came
across this a while back: