Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

What equipment is needed to recover silver from our wastewater

Q. We are doing Silver plating and recovering silver from effluent. What kind of a furnace can we use to melt silver powder recovered from wastewater generated? Does it need a fume extractor?

Sudhanshu Shevade
Plating shop - Aurangabad, Maharashtra, India
2004

A. It's much more practical to put the recovery equipment on the rinse tanks following silver plating than to mix and dilute this rinse water, chemically treat it, and then try to recover it. Consider an electrolytic recovery unit on the first rinse tank after plating. This can plate out relatively pure silver metal. Lacking that, ion exchange can be applied on that tank and the resin burned to recover the silver values.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004

Q. I have about 12 pounds of electrical contacts...I am told that they are made up of the following: 42% silver; 27% cadmium; and 31% nickel. What is the best way to recover the silver?...is it worth the time to recover the cadmium and nickel and by what method?
thanks

Tony Bruno
- Cassatt, South Carolina
2006

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: