[Digestion] A Chinese Biogas Manual

[Warren Weisman]

Mr. Karve, 

Your digester at Aprovecho outside Eugene, Oregon does
not work and has caused me considerable difficulty
trying to increase awareness of biogas in the American
Pacific Northwest. I regularly encounter people who
think that biogas does not even exist. Additionally,
the food waste digester at the Oregon State University
was abandoned as too complicated. 

I teach and practice the Chinese example, as outlined
in "A Chinese Biogas Manual" edited by Ariane van
Buren, who have tens of millions of operating 10 cubic
meter pit-type digesters that co-digest crop waste,
food waste and toilet waste. The Chinese stress using
a healthy mix of what is readily available over gas
yields and rarely fail to produce 1 cubic meter of gas
per day rain or shine summer or winter. 

You can all choose thick scientific journals or
computer estimating software, but in my opinion, this
is the most useful book about biogas in existence and
anybody would be foolish to consider a digester or a
biogas program without a copy of it. 

Warren Weisman

--- adkarve <adkarve at pn2.vsnl.net.in> wrote:

> I have been working on biomethanation of food waste
> since 2002. It is my
> experience that 1 kg of practically all the food
> that humans eat would give
> a kg of biogas. Also many non-foods like oilcakes of
> non-edible oilseeds,
> nonedible rhizomes, corms and tubers, etc. a kg of
> biogas for a kg of
> feedstock. We found that starchy, sugary, proteinous
> or fatty matter was far
> superior to dung, distillery effluent, sewage, etc.
> Methane production takes
> just 24 hours of reaction time with this type of
> material. We now provide
> urban dwellers with compact biogas plants, costing
> approximately US$250
> each. We have so far installed 3000 of them and are
> currently installing 100
> per month.
> Yours
> A.D.Karve
> ----- Original Message -----
> From: Bruno M. <brunoM1 at telenet.be>
> To: <digestion at listserv.repp.org>
> Sent: Monday, February 11, 2008 10:58 PM
> Subject: Re: [Digestion] BIOMET model by Mushoe -
> other models available
> 
> 
> And the working link is
> <www.softplus.net/produkte/biogase.asp>
> 
> ;-)
> Bruno M.
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> At 18:01 11/02/2008, you wrote:
> 
> >Hi Will and all,
> >Unfortunately, I haven't came across this model.
> For this purpose I am
> using Biogas! from Arbi in Switzerland. However, you
> need your degradation
> and yield parameters for specific crops or biomass.
> In that case, you can
> run your own batch tests (BMP) and you can get that
> information that way.
> You can always select predetermined crops in the
> database, or build your
> own. It is a very user-friendly program, take the
> time to read through the
> instructions.
> >You may have to browse around in the German website
> to find the English
> download link:
> >www.softplus.net/produkte/biogase.asp%22
> >
> >There is also another model in this paper, with
> their equation:
> >Biogas production from maize and dairy cattle
> manure-Influence of biomasss
> composition on the methane yield
> >Agriculture, Ecosystems and Environment 118 (2007)
> 173­182
> >They will be hopefuully publishing a more updated
> model in the upcoming
> years.
> >
> >Hope that helps a little bit.
> >Terrence
> >--
> >Terrence Sauvé, B.Eng Bioresource      Research
> Assistant
> >Alfred Campus - University of Guelph    31 St. Paul
> Street, P.O. Box 580
> Alfred, Ontario, K0B 1A0, CANADA
> >Tel.: 613-679-2218 x602 Fax: 613-679-2420      
> E-mail:
> tsauve at alfredc.uoguelph.ca
>
>---------------------------------------------------------------------------
>
-----------------------------------------------------------------
> >>>> William Mezzullo <W.G.Mezzullo at bath.ac.uk>
> 11/02/08 6:41 >>>
> >Hello,
> >
> >Has anyone come across the AD model called BIOMET
> (presented by Mishoe et.
> >all 1988). It is a model that considers alternative
> energy crops that can
> >be used as feedstock.
> >Does anyone know where I could get hold of this
> model?
> >Thank you very much
> >
> >Will
> >--
> >William Mezzullo        Sustainable Energy Research
> Team (SERT)
> >Dept. Mechanical Engineering    University of Bath 
>     BA2 7AY
> >email - W.G.Mezzullo at bath.ac.uk Telephone - 01225
> 385 164
> >http://people.bath.ac.uk/en2wgm/
>
>===========================================================================
> ====
> 
> 
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> 
> 
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> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> http://info.bioenergylists.org
> 
> 
> 
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