[pure-silver] Re: Silver Nanoparticles May Be Killing Beneficial Bacteria In Wastewater Treatment -
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 30 Apr 2008 13:26:01 -0700
----- Original Message -----
From: "Snoopy" <snoopy@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Wednesday, April 30, 2008 2:27 AM
Subject: [pure-silver] Re: Silver Nanoparticles May Be
Killing Beneficial Bacteria In Wastewater Treatment -
Dear Peter,
more than 30 years (I mean really: in the early 70's). ago
I was told by my city council's environmental folks that I
should please recycle my used fixer so that I do not kill
off the bacteria in the water recycling plant.
It is really surprising for me to read that in the US this
is still "only" a "theory" (may be killing benign
bacteria). I presume the matter is resurfacing because
the use of silver is now going up again?? I would think
that the last ten years saw less and less silver solutions
being dumped and now things are changing again.
Antibiotics, desinfectants and poisons will kill anything
in sight be it bening or malevolent (except those bugs
which are resistant).
Offtopic #1:
The water works in Munich use South American electric eels
to monitor the water: they emit electricity at a certain
frequency which changes as soon as the fish detect toxins
in the water. They are a lot more sensitive than sensor
technology.
Offtopic #2:
Visiting a waste water recycling plant is a very memorable
experience. Highly recommended. What stuck in my mind most
is the machine which stirs resp. whips the sh?t, I mean
human faeces into the water, it's the size of a house and
I mean a respectable house. Lends a whole new meaning to
phrases like "the sh.. hit the fan" etc. etc. :-)
Love,
Snoopy
Peter Badcock wrote:
Silver Nanoparticles May Be Killing Beneficial Bacteria
In Wastewater Treatment
<http://www.sciencedaily.com/releases/2008/04/080429135502.htm>
--
I have not read whatever the link points to but the
effect of silver is well known. Its pretty easy to recover a
large part of the silver from amateur darkroom operation
with simple equipment. Large processors, like motion picture
labs, recover silver both for environmental reasons and
because its economical. The value of the recovered silver is
quite high plus it extends the life of the processing
chemicals. Even wash water is is processed for re-use.
A Google search will find information on methods of
silver recovery and equipment for doing it at all levels of
volume plus places that buy recovered silver.
Nearly all the silver used in color film can be
recovered from the processing solutions since the silver
image is an intermediary for the color image and all silver
is removed from the film or print.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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