Saturday, May 13, 2000, 11:24:29 AM, you stated:
DD> While researching for a large source of organic fertilizer I ran
DD> across a company offering an anaerobic digester. They claimed
DD> any organic type material could be used as input....chicken
DD> litter, steer waste and piggy effluent.
DD> They claimed an output of methane, CO2, and a dry bagable soil
DD> amendment with a high N content. They claimed the sale of
DD> methane, CO2, and fertilizer is an economical venture for the
DD> construction of the digester.
DD> ...is there enough "energy" in animal waste or municipal waste
DD> for that matter, to justify such a plant operation?
David, you are the one in contact with the company offering an
anaerobic digester. Get the purchase cost of the plant from them, as
well as the operating cost or find out what you need to operate and
price those yourself. Make sure you include the equipment required
to capture and store the methane & CO2. And you ought to know the
content of the fertilizer produced.
Next you check the going sales price of the two gases and the
fertilizer and there you have it, assuming that you already had the
raw materials on hand. If not, factor in those and the cost of
transporting them. Don't forget the labor involved.
Lastly, let us all know the results.
The above scenario assumes a need to sell the products. Yet the most
attractive application of the operation would seems to be on farm
use of at least the methane and the fertilizer, freeing the owner
from a dependent relationship on an external energy source. You
might check out the cost of a small gas turbine while you're at it,
capable of generating electric power.
You might want to investigate the upward flow reactor option, also.
Douglas Hinds, Dir. Gral. - CeDeCoR, A.C.
Centro para el Desarrollo Comunitario y Rural, Asociacion Civil
(Center for Rural and Community Development,
a Mexican non-profit organization)
Cordoba, Veracruz; Cd. Guzman, Jalisco; Loma Bonita, Oaxaca
& Reynosa, Tamaulipas Mexico
Hablando se entiende la gente
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