Letter 32002

Need information about silver plating industry effluent  

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I am doing ME project on recovery of silver from electroplating industry using polymer inclusion membrane. the concentration of silver may vary for different industries. i need information about effluent characteristics and discharge standards for silver plating industry.could anyone send to me.

regards,

b. saravanan B
Centre for environmental science, Anna university. - chennai, tamil nadu, india

You know, I did a google search on the subject and got over 2000 hits. And you expect us to do your work for you?!!!

James Totter, CEF - Tallahassee, Florida

Conditions vary too much in the plating industry for us to be able to summarize or generalize on silver plating effluent volume or concentration. But there have been dozens of studies on this, paid for by public grants, and you might look them up and make use of them. Nobody in industry has much use for this product of corporate welfare :-), but it may be useful for your studies.

One quick hint that may help you, though, is that at least 95 percent of all silver plating is done from standard cyanide-based silver plating solutions. No one has invented a general purpose silver plating solution that is not cyanide-based and that is reliable and versatile enough for truly widespread application yet. Good luck.

Ted Mooney, P.E.  finishing.com Brick, New Jersey

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