Foam Filtration Current Research
Head Loss Calculations
Research from fall 2010 was continued in hopes of determining the head loss through foam as a function of filter run time. We were also interested in determining the head loss at filter collapse.
Foam Filtration Design
Our team is working on finalizing the design for the point-of-use foam filtration unit. Different designs for the filtration unit are being considered and researched thoroughly. Most of the work we have done thus far is focused on the specific design of the alum doser and methods of incorporating this dosing component into the overall system. An analysis of each proposed design for this dosing unit was conducted using MathCAD in order to determine its feasibility from a quantitative standpoint. By the end of the semester, we hope to have concrete dimensions and parameters for each individual component within the system. Afterwards, we plan to construct and test our design.
Varying Influent Turbidity
In order to determine conditions under which a polyurethane foam filter can successfully filter water to below U.S. standards of 0.3 NTU, performance of the filter with various influent turbidities must be evaluated. Ranges of turbidity from 5 NTU to 50 NTU will be tested with 30, 60 and 90 ppi foam.