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Final Report
For the second part of the semester, I have:
- improved data analysis by changing to a user-friendly layout that allow easy access/workaround with MathCad files and integrating data smoothing using moving average approach,
- worked mostly on assembling the new tube flocculator setup, cleaning/organizing the experimental apparatus, conducting and troubleshooting the experiments,
- analyzed the data from the new setup and compared it with the previous setup, and
- updated the wiki page.
My works now (or in the future, will) focus on:
- creating tutorial for Process Controller,
- trying to carry out experiments using Particle Image Velocimetry (PIV) (we have managed to collect some data, but the computer that host the data crashed unexpectedly and the data cannot be retrieved at the moment),
- conduct experiments on the new setup with new IR turbidimeter,
- creating troubleshooting page for Tube Floc experiments, and
- updating the wiki with new information for Summer session.
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My works consist of evaluating previous data, creating better analysis tools using MathCad and analyzing any trends that can describe the sedimentation data.
Our (Ian Tse and I) first task was to organize the data and to identify which data corresponds to the matrices in the MathCad space. Then we try to deduce any trend that can be compared with the data. Our first guess was that these data can be represented by polynomial plots. From the error analysis, we determined that the third or fourth degree of polynomial suits the datasets the best. However, this polynomial regression method would only beneficial for fitting the experimental data but won't be useful for determining any actual parameters that representing the curve. Therefore, a saturation curve was suggested as presented here (the final figure). However, the regression didn't give a better fit for the datasets. We've tried to look from another perspective, and after several discussions, we decided that by normalizing the amount of settling (1-NTU/NTU max), the analysis can be improved. The double-reciprocal analysis was imposed on the normalized datasets and we found that they conformed with Lineweaver-Burke analysis.
Our next approach is to extract particle distribution curve from the datasets and get better understanding of how floc size affect the performance of settling column.
On February 20, we also did teach-In, as a summary of our understanding and also anything that we wanted to work on.
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Presented here are pages created during data analysis. Any suggestions will be reviewed and eventually help me to improve the analysis tools.
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