Home Full portfolio Thickener Froth Management Upgrade
Improve minerals recovery and minimize operating costs with Metso Outotec's thickener froth management upgrade. The upgrade helps with froth control, particularly on concentrate thickeners, which can carry valuable minerals into the thickener overflow. Reducing or eliminating froth can save an operation millions in lost minerals per year, as well as reducing maintenance and reagent costs.
Lower environmental impact

Reduced reagent consumption

Decreased water usage

Less need to clean process water in dams or tanks and fewer solids in the returned process water

Lower operating costs

Reduced reagent consumption

Improved mineral recovery

Reduced or eliminated froth to overflow


Thickener Froth Management Upgrade:

  • Improves minerals recovery
  • Decreases operating costs through reduced reagent consumption
  • Results in cost savings as less need to clean process water dams or tanks
  • Reduces the amount of solids in the returned process water
Thickener Froth Management Upgrade

A range of options are available depending on the level and tenacity of the froth:

  • Rotating floating boom
    • Sprays and baffle
    • Effective for light and fluffy froth
  • Boom and beach
    • Sprays and baffle
    • Floating boom replaced with rigid boom
    • Beach collection point with tank wall penetration for froth removal
    • Highly effective on denser more tenacious froth
  • Deaeration tank
    • Stops froth from entering thickener
    • Feed enters tangentially to create vortex to aid deaeration
    • Thickener feed withdrawn from below the liquid level to prevent air and froth entrainment
  • Process Review
  • Engineering Study
  • Upgrade, which may include:
    • Rotating boom
    • Sprays and piping
    • Baffle
    • Beach
    • Deaeration tank

Case studies, blogs & webinars

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