Industrial Waste Applications

There are a wide variety of industrial waste streams where metal values are lost. Metal-laden waste liquors may originate from steel production, electroplating, metal refining, or waste treatment processes. PSI's resins can recover these metal values and increase the profitbility of the operation.

• Operating range for selective metal recovery = pH 0 - 3.5
• Recover copper, nickel, cobalt and PGMs from 0.01 - 10g/l feed liquors (resin, liquor matrix and pH dependent)
• Reject ferric and ferrous iron, Al, Zn, Ca, Mg, Na, K (resin and pH dependent)
• Liquor flows 10 - 1000m3/hr using fixed bed and carousel systems
• Reliable, simple, safe processing 

• Nickel recovered from waste stream in copper refinery. 10m3/hr fixed bed process at pH2.  PSI WP-2 used to recover nickel. Eluate sent to electrowinning circuit to produce nickel cathode.
• Nickel recovered from mixed sulphate/chloride matrix from an electrowinning discharge stream. 400m3/hr fixed bed process at pH2.
• PGMs recovered from gold plant discharge. 2m3/hr fixed bed plant at pH0.     

• Nickel recovered from mixed industrial waste liquor with sulphate matrix. 30m3/hr fixed bed system at pH2. PSI WP-2 produces 99% nickel purity while rejecting Fe, Al and Zn. Eluate sent to electrowinning process to produce cathode.   

• Nickel recovered in multi-stage process from stainless steel waste stream. Water, acid and nickel values recovered where previously lost.