BioFoam “Moving-Bed” Bio-filter Operation
Water from the livestock tank is continuously circulated inside the BioFoam Filter. An independent pump recirculates water inside the BioFoam reactor via an air venturi manifold. The oxygenated water suspends and tumbles the media, providing an optimal environment for colonizing nitrifying bacteria.

The oxygen-rich water inside the BioFoam reactor contains micro-fine air bubbles that travel upward through the reactor, accumulating both small particles and dissolved organic waste on their bubble walls. These tiny air bubbles not only help to suspend and move the media bed, but also increase dissolved oxygen. This process ultimately creates a dense foam at the top of the filter. This waste-laden foam separates from the system’s water as it climbs up and out of the waste tube.