[Digestion] Environmentalists Anti-AD Issues

[James Fidell]

On 15/06/11 18:15, Edgar Blanco-Madrigal wrote:

> Not surprising that an interest group from America subtly tries to
> create a concern to serve its own purpose, rather than to address a
> serious issue. This is well in keep with the folks that ban the
> teaching of Darwinian principles, "pro-life" taliban campainers and
> the like. How can you call serious a comment that only references its
> own propaganda to back its arguments?!

That arsenic ends up in the soil (and presumably therefore eventually
gets into the water supply) as a result of spreading manure from
chickens fed arsenic-based growth promoters doesn't appear to be a
particularly contentious point as far as I can tell from the research
I've been able to find on the net this evening, and that's after
filtering out anything clearly written by people who knit their own
yoghurt.

However, if manure destined to be spread on soil is first put through
an AD system and the spent digestate then spread, I'm not sure what
relevance the entire arsenic issue has to the AD process.  Either it's
there and will end up in the soil either way, or it isn't and won't.

James