[pure-silver] Re: uh oh, I think I killed the plants outside from my fixer
- From: Sauerwald Mark <mark_sauerwald@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 14 Sep 2005 13:44:00 -0700 (PDT)
Living in a rural area, and on a septic system, I
dispose of most developers and stop in the septic, but
take exhausted fixer and toners to a local university
for silver recovery
--- Dave Hornford
<Dave.Hornford@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> Peter,
> Regardless of the chemistry, trivial for the volumes
> we are talking
> about if you live in a mid-sized municipality. It is
> simply a matter of
> dilution. Your results may vary if you have a
> septic-field and process
> allot of film.
>
> Dave
>
> Peter Badcock wrote:
>
> > On 9/10/05, *Stefan Kahlert*
> <s.kahlert@xxxxxxxxxxxxx
> > <mailto:s.kahlert@xxxxxxxxxxxxx>> wrote:
> >
> > That's true for unused or desilvered fixer.
> Loaded with silver it
> > becomes rather toxic for most of the
> environment.
> >
> >
> > This topic got me reading again about the toxicity
> of silver-rich
> > fixer, especially in regards to claims that it
> acts as a bactericide
> > and will kill off the 'good processing bacteria'
> at the sewerage
> > treatment plant.
> >
> > Then I came across this post here
> >
>
http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=00BSoD
> which
> > talks about ionic silver being the culprit. But
> if the ionic silver
> > in the fixer has had a chance to form insoluble
> precipitates on its
> > way to the sewerage treatment plant, then would it
> not be in a rather
> > unreactive form and consequently not dangerous?
> >
> > Now I'm definitely not advocating pouring fixer
> down the drain, I just
> > wonder how much of a problem the silver would
> actually be.
> >
> > Disclaimer: I'm not a chemist....
> >
> > regards
> > Peter
>
>
>
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