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Date: | Wed, 27 May 1998 07:35:30 +0000 |
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From: [log in to unmask][SMTP:[log in to unmask]]
Reply To: TechNet E-Mail Forum.;[log in to unmask]
Sent: Friday, May 22, 1998 11:05 AM
To: [log in to unmask]
Subject: [TN] Crashing iron from solution
I asked about lead, but I also wanted to know how to get iron out of
solution. Is it possible to selectively remove iron from a solution?
Chris Coon
Borden Chemical
Kent, WA
Chris,
You can remove lead by precipitation at a pH of above 8.5. A little Sodium
Sulfide will remove any remaining lead to meet limits.
Iron can be remove selectively from some solutions, for example, chrome
plating solutions are purified using a cation resin. A lot depends on the
valence of the iron and the other ions in solution.
Best Regards,
Bob Mesick
Remco Engineering
Water and Wastewater Treatment Systems
www.remco.com
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