On 02/17/2015 09:08 PM, Debra & David wrote:
I dunno much about RO systems but its not simply about
the membrane. It also takes a lot of pressure to make
them work. Is a bit of electrical current going to draw a
silver ion through a membrane? I have my doubts.
It takes a lot of pressure to push water through the
membrane, against osmotic pressure that drives it (the
water) toward the salty side. The silver ions are at such a
low concentration (in parts per million, not percents) that
they should produce an almost unmeasurable osmotic pressure
on the water. The membrane has to have pores larger than
silver ions, to allow the ions to pass through, easily,
pushed only by the electric field, but block colloidal,
neutral clumps of many silver atoms that experience no force
from the electric field.
I am remodeling a house, in preparation for a move, right
now, so I only have time to think about possible experiments.
--
Regards,
John Popelish
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