AT&S

Application
Printed Circuit Board.

Recovery of fresh water and gold from the PCB production by applying membrane distillation.

Key performance indicators: Manufacturing capacity: 250.000 m² PCB per year. Problem definition:
• - Variation in bath concentration during the operation
• - Loss of precious metals like gold and palladium.
Waste water streams: 100.000 m³ of waste water/a.

Advantages:

• - Circular economy approach – no waste
• - Recovery of valuable resources
• - Use of waste heat
• - Reduction of operating costs
• - Reduction of environmental pollution
• - Increase of company profit

Validated models will be used for future scenarios analysis and planning.

Actual Results: Signifi cant reduction of gold loss.

Location
Fehring, Austria

Year
2019

Capacity
Pilot plant