The more modern package treatment plants available over here actually use an
aerobic process, which would break down developers but that would not help
with heavy-metal contamination. In my view septic tank disposal of photo
chemistry is not a good idea. It might well have no adverse effect - BUT
the results of possible disruption to the process will be on your own
doorstep, for all to see, and possibly smell.
http://photo.net/bboard/q-and-a-fetch-msg?msg_id=008gPi&tag= has a variety
of answers to the question, including the views of a photographer/septic
tank expert from NM.
--
Piers
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of John Gettis
Sent: 28 September 2006 14:32
To: olympus@xxxxxxxxxx; olympus@xxxxxxxxxx
Subject: [OM] Re: B&W chemistry and septic systems?
Basically Its a no no. Search Kodak site they used to have a article on the
this. If I remember the reason is the process that breaks down the waste in
a septic system doe not use Oxygen and to break down darkroom chemical you
need oxygen. John
> [Original Message]
> From: <NSURIT@xxxxxxx>
> To: <olympus@xxxxxxxxxx>
> Date: 9/28/2006 10:15:31 AM
> Subject: [OM] B&W chemistry and septic systems?
>
>
> I plan to sell my home and begin construction on a new (retirement) home
> next year and am considering having a dedicated B&W darkroom built. The
area in
> which I'm building doesn't have city water and/or sewage, so we will
have a
> well and a septic system. Does anyone have any experience with
> dumping
B&W
> chemicals into a septic system. The well will be at a depth 400 to
> 600
ft and
> essentailly will be drilled through fairly solid limestone. The hypo
would
> either be taken somewhere else to disposed of or if not, treated for
removal
> of the silver prior to being dumped. The B&W film would be exposed
> in
OM
> cameras and yes, others of medium and large format. <{8^) Bill
> Barber
>
>
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