DIG-L: Fwd: E-Plus Landfill Gas Production

[Tom Miles <tmiles@teleport.com>]

Forwarded to the list by TR Miles

>X-From_: tubkal@mx2.redestb.es Fri Mar 31 07:27:24 2000
>From: "tubkal" <tubkal@mx2.redestb.es>
>Date: Fri, 31 Mar 2000 09:27:56 +0200
>X-Mailer: Microsoft Outlook Express 4.72.3110.5
>
> > Dear sir,
> >
> > This is Francisco Fernández, a hydrogeologist in TUBKAL CATALUNYA, a
> > company based in Barcelona, Spain.
> > We are frequent users of EPA software, E-PLUS.
> >
> > We have met a serious problem in a Ladfill Gas Recovery Project we are
> > dealing with.
> > We used E-PLUS software to estimate Landfill Gas Production in a 2,7Mt
> > Munipal Waste Landfill of an average age of 10 years. According to the
> > results, the project was dimentioned for a 2MW production during the
> > period 2000-2008. The average annual rainfall is 500 mm.
> >
> > After some months, a later, external estimation with an unkown method for
> > us has surpised us: the production curve estimation is very different and
> > it results in a production of 1MW during the same period. The essential
> > difference seems to relay on a rapid decay of a percentage of the waste,
> > therefore production decays very quickly after a few years.
> >
> > For us it is very important to have a third opinion, if possible based on
> > expertise in real, similar projects of energy recovery in landfills.
> >
> > We would appreciate your answer to guide us with your experience so as to
> > solve this problem; the best solution is probably to compile real data of
> > landfill gas production in similar cases. If necessary, we can send all
> > available data of the project.
> >
> > Taking profit from this urgent and serious question, we would also
> > appreciate if you couls send us any information on the estimation of K and
> > Lo of the model, both data from real landfills and theoretical methods.
> >
> > Looking forward to hearing from you and thanking you in advance.
> > Sincerely,
> >
> > Francisco Fernández
> >
> >

Thomas R Miles				tmiles@teleport.com
Technical Consultants, Inc.	503-292-0107
1470 SW Woodward Way		503-292-2919(fax)
Portland, OR 97225 USA		www.teleport.com/~tmiles

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