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Varying Influent Turbidity
Similar to a rapid sand filtration unit which consists of many layers of sand with different porosities, we want to develop a design where we have layers of foam with varying porosities as our filter media. In order to do this we want to first quantify the performance of several polyurethane foam materials with different porosities when subjected to a wide range of influent turbidity conditionsIn 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.