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Foam Filtration Current Research
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Fall 2010
Since laboratory research has shown that horizontal flow foam filtration is not a feasible method for achieving the desired filtration performance, it is necessary to manipulate the geometry of the proposed foam filtration unit in another way. With a high velocity foam filter, the depth of the foam will be increased to accommodate the increased velocity. With an increased filtration velocity, the filtration unit will require less planned area, which reduces the associated construction and maintenance costs.
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Foam Filtration Past Research
Foam Filtration Future Research
After laboratory tests on the filtering capacity of the polyurethane foam material are concluded, we will continue to explore different research areas. This will include determining head loss across the foam over the run time of the filter, the effect of layering different porosities of foam, the effectiveness of an aluminum hydroxide wash to decrease the ripening time of the foam, and the following areas of research will be explored:effects of natural organic matter on the foam material
Head Loss Calculation
The amount of headloss that occurs with the build up of particles in the foam will determine how often the filter will require cleaning, and the additional height required for the walls of the filtration unit to accomodate this additional head loss. It is therefore important to measure the change in headloss over the running time of the filter.
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