Ovivo® Scourguard® Filter Troughs

The Ovivo® Scourguard™ Filter Troughs allow granular media filters to be cleaned by simultaneous application of air scour and backwash water, with only minimal media loss in the backwash waste. Simultaneous application of air scour and backwash water is an aggressive media cleaning technique, allowing tenacious, deeply embedded contaminants to be removed quickly and efficiently.
  • Dual media gravity filters, new and retrofit
  • DVG filters
  • Replace existing u-shaped backwash troughs
  • Quadrakleen filters

Ovivo Scourguard backwash troughs allow granular media filters to be cleaned by simultaneous application of air scour and backwash water with only minimal media loss in the backwash waste.  Simultaneous application of air scour and backwash water is an aggressive media cleaning technique, allowing tenacious, deeply embedded contaminants to be removed quickly and efficiently.  Although this economical technique reduces backwash frequency and wastewater production, media loss is a potential problem.  When backwash water is allowed to overflow the through weirs during air scour, air induced turbulence can cause media particles to be carried into the waste trough and become lost.Simultaneous air-scour and backwashing

  • Available in stainless steel and fiber-reinforced plastic construction
  • Efficient removal of deep embedded contaminants
  • Minimal media loss, long filter media life
  • Reduces wastewater and backwash frequency
  • Improves media cleaning efficiency

scourgaurd pic2The Ovivo Scourguard trough minimizes the incidence of media carryover by creating a quiescent zone adjacent to the trough weir.  Large baffles adjacent to the trough deflect hydraulic energy allowing media to settle out of the wastewater stream before the stream crosses the weir.  These baffles are positioned just below liquid level to allow trouble-free, continuous surface skimming for removal of floating solids.  The Scourguard through allows maximum media cleaning, reduced backwash water consumption and protections against media loss.

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