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During summer 2010 I had the pleasure of working on the Stacked Rapid Sand Filtration team. I assisted in successfully building a bench scale model of the stacked filter, controling the influent raw water turbidity and keeping it as its turbidity as consistent as possible, running several experiments running a plethora of experiments of varied parameters such as velocities and dosages, and successfully backwashing the system by sequentially fluidizing individual sand layers. I also contributed in conducting a performance comparison to a conventional single layer filter system of the same depth as an individual layer of our stacked filtration system (20 cm), and in adding pressure sensors to the apparatus to provide a more complete comparison. The original apparatus consisted of four filter layers in a white 4" I.D. PVC pipe, and I assisted in replacing it right before the Fall semester with a clear PVC pipe of the same diameter but with six filter layers. This clear pipe allowed us to run visual experients in Fall 2010.
Fall 2010 Contributions
This semester, I am working on the foam filtration team. We are currently preparing our experimental apparatus to run an experiment to determine the head loss across the foam column both with clean water running through it and when the foam fails and collapses due to particle buildup on the top layer. Additionally, the foam filtration team is working on designing a point of use foam filtration unit that will be submitted the the EPA P3 competition this semesterDuring Fall 2010 I have continued working on the Stacked Rapid Sand Filtration Team.
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