During summer 2009 I am working on the Plate Settler Spacing team. I am currently running experiments to test the robust-ness of the plate settler geometry. An ideal geometry is being subjected to non ideal conditions by changing the alum dose. I am also graphically analyzing the data collected from these experiments to attempt to develop a relationship with influent conditions and effluent turbidity. I have also worked on the velocity gradient calculations in mathCAD. We are attempting to figure out what the critical velocity and diameter of a particle would be to cause it roll up the plate settler and into the effluent. This critical velocity is also being determined experimentally using a ramp function (slowly increasing the flow rate over time) which allows us to see exactly where the critical velocity is. I have also been working to design a filter foam experiment which will even out the flow between the settlers in plants in Honduras. Preliminary experiments are currently being performed.
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