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Dear Neal
OK.... what about "digesting the dirties", to produce biogas
for high grade energy production, i.e., electricity, and then use the waste heat
from the engine system, and the waste heat from residue incineration to serve
the district heating needs?
Kevin Chisholm
----- Original Message -----
Sent: Monday, April 01, 2002 5:02
PM
Subject: GAS-L: MSW and Biosolids
As far as I know, MSW
is unsorted municipal garbage. It can be sent through a MRF, material
recovery facility, at great expense to sort out recyclables and unsuitable
materials. There is some talk of gasifing the sorted MSW after a MRF but
not much of trying it with unsorted MSW. We have been talking to Phil
Moss of Kentucky about an MSW gasifier he has had running for some time in
Alaska. Phil can be reached at pamoss@kih.net
Biosolids (sewer
sludge) can be digested as Kevin says. For my part, I would prefer to
combust them and extract all of the energy value. For a district heating
system using steam the biosolids could be a good fuel, depends on the
combustion technology and the metal content of the biosolids. But this
is a very doable project for any interested municipality. Same is true for
feed lot, dairy and hog manure.
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