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There are several priorities that we have for this semester. Before initiating testing of the model, we have some preliminary goals to improve the laboratory setup.
It was determined that the openings between the sections of the flocculator were too small. We would like to make these openings larger by Friday, February 9.
In addition to these initial improvements and testing of the set-up, we also have research goals related to the tapered flocculation model. Our biggest goal is to establish a reliable experimental testing procedure. This method should include being able to visually analyze and classify, via a standardized reference, the flocculation in the tank.
Currently, sampling takes place in three adjustable locations within the tank. Before analysis in the turbidity meter, the water enters a long glass tube which is meant to act as a "miniature sedimentation tank". However, previous testing has indicated that a significant amount of floc reached the turbidimeters. We would like to improve the method of sedimentation before the water gets to the turbidimeter. We will try to do this by adding insulation to the exposed tubing by Monday, February 18th.
We will have comparitive data of the before and after adding insulation by Monday, February 25th. During this period at the beginning of the semester, we will also be working on design details of the sedimentation tank. During this time, we would also like to implement better lighting in the plant, and develop more detailed procedure for quantifying floc size in various parts of the sedimentation tank.
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We would also like to test a set-up that includes obstacles between the baffles. The idea behind this modification would be to make the velocity gradients more even throughout the sections. Previous AguaClara research has indicated that velocity gradients were much higher around the turns than along the length of the baffles.
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Timetable
Date | Goal |
|---|---|
09-Feb-08 | Resize openings between flocculator sections |
11-Feb-08 | Begin running current set-up |
18-Feb-08 | Preliminary Data Collected, Insulation added to Outside of Settling Tubes |
25-Feb-08 | Comparative Data: Before/ After adding insulation to Settling Tubes |
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