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metal reclamation

Greetings everyone,

I searching for companies who reclaim metals from metal precipitation sludges.
Specifically, I have two sludges containing the following:

Sludge #1
Ni:  75 to 85 mg/kg
Cr:  300 mg/kg
Ti:  87,000 to 100,000 mg/kg

Sludge #2
Ni:  5,400 to 5,500 mg/kg
Cr:  4,900 to 5,000 mg/kg

Does anyone have basic guidelines as to what is cost effective for reclaiming
metals from sludges?  Any information and company leads will be appreciated.

Thank you in advance,

Jeff Senn
Sigma Environmental Services, Inc.
Oak Creek, WI