Elizabeth Tutunjian's Individual Contribution Page

Fall 2009 Contributions

As a member of the Plate Settler Spacing Team, I have been investigating the "floc roll up" phenomena. More specifically, I have been performing experiments with the team that will help to determine the velocity and size of the particles that "roll up" the tube settler and into the effluent rather than settling down the tube, back into the floc blanket.

I have been working on the Theoretical Analysis of the Velocity Gradient and particularly focusing on updating the velocity gradient model previously created by the past Plate Settler Spacing Team in order to develop a working model that will better support our experimental results.

To find the critical velocity at which particles will begin to roll up the tube settlers, the team performed the Ramp State Experiment. Later in the semester, more experiments are planned to further determine the accuracy of this model.

I also helped the team perform, and analyze data for, the Experiment with Saturated Water, in which we linked our apparatus with that of the Floating Floc Team in order to better investigate the "Floating Floc" problem.

Because the team is planning to experiment with natural organic matter, I helped perform a preliminary literature search to provide background information for this experiment.

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