DIG-L: Using various digester feedstocks

[Tom Hall <tomhall@alum.mit.edu>]

Hello Digestion Group,

We are designing, from the ground up, a new city that is sustainable and 
beyond using only wind, solar, and biomass for energy.  I am 
investigating the system to digest biomass to biogas for electricity, 
cooking and heating.

I have a question about feedstock for the digesters.  I have fund a lot 
about manure and sewage digesters and only a few hints about other 
biomass.  I would like some information, experience, and references 
about the efficiency of using such things as:

1)  Agriculture waste (especially year round food production in green 
houses)
2)  Perennials grown on marginal land and buffers.
3)  Other crops grown for the express purpose of producing methane for 
power.
4)  General biomass which is disposed of like that which people take to 
the dump and pay a fee to dump including brush, grass clippings, leaves, 
wood, etc.
5)  Other sources?

Is there a table some where listing the efficiencies of various 
materials and plants?

I am a member of the Chamber of Renewable Energy and Infrastructure of 
Vedic City, the newest city in Iowa.  I am continuing my work on the 
project from Vermont having just moved there.

Tom Hall

-- 
----------------------------
Tom Hall, B.S.E.E., MS
1140 Beebe Lane
Williston, VT 05495
802-482-2439
tomhall@alum.mit.edu





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