[Bioconversion] biogas yield of switchgrass

[Ken Boak]

Jeff,

Thanks for the  data.

Can you explain how to produce biogas from waste veg oil and fat?  Is there
a site that describes the process?


regards,


Ken Boak


----- Original Message ----- 
From: "Jeff Davis" <jeff0124 at velocity.net>
To: <bioconversion at listserv.repp.org>
Sent: Thursday, September 14, 2006 6:52 AM
Subject: Re: [Bioconversion] biogas yield of switchgrass


> On Tuesday 12 September 2006 03:58 pm, Roger Samson wrote:
> > Anyone aware of any biogas yields per tonne from warm season grasses
such
> > as switchgrass, big bluestem or eastern gamagrass.
>
> Not sure if this will help:
>
> m^3 biogas production/ton
>
> fat & grease = 961
> bakery waste = 714
> food scraps = 265
> corn silage = 190
> grass silage = 185
> green clippings = 175
> brewery waste = 120
> chicken manure = 80
> potato waste = 39
> pig manure = 30
> cow manure = 25
>
> No idea how accurate the above is.
>
> Maybe it's around the 190 to 170 range?
>
> Jeff
>
>
>
> -- 
> Jeff Davis
> Somewhere 20 miles south of Lake Erie, USA
> http://www.velocity.net/~jeff0124
>
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