> Could anyone please comment on the "fertilizer" claims and pathogen
> cut-off claims, and/or point me towards some authoritative work on
> the subject (preferably by soil biologists rather than chemists)?
>
> Many thanks
>
> Keith Addison
> Journey to Forever
> Handmade Projects
> Osaka, Japan
>http://journeytoforever.org/
The local biogas legend here in Iowa is a fellow named Al Rutan. Try his
website www.methane-gas.com his email is on the site and I am sure he'd be
happy to answer any questions or direct you to an authoritative source of
info.