Foam Filtration
...
Figure 1: Large filter experimental setup
Figure 2: Current implementation of the Small 4” Pipe Filter
Figure 3: Example of reticulated foam used in the foam filtration technology
| Excerpt |
|---|
Numerous techniques of water filtration are in use today, most of which involve the use of sand as the porous media. Foam filtration, however, goes beyond traditional water treatment methods and utilizes the filtering capacity of reticulated polyurethane foam. A foam filter requires less surface area, treats higher turbidity water (lab results have shown pC* values of 2 for 1000 NTU influent), wastes less water during backwash, and is less expensive to build than a traditional rapid sand filter. The primary goal of foam filtration is to design a low cost, locally sourced, easy to operate water filtration system for communities of less than 1,000 inhabitants and for disaster-relief scenarios where the community's main water supply has been compromised. |
...