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Spring 2009 Mid-Semester Contributions

This semester I am have been working on the Research TeamDissolved Air Floation of Flocs team, specifically on Aeration group of the Floating Floc subteam. Thus far, I have been focusing on dthe Aeration subteam. Currently, the bulk of my work involves experimenting with dissolved oxygen removal from super saturated water by increasing the gas transfer rate using air bubbles as a catalyst. The results from our experiments thus far have suggested that the aeration method may not be a suitable solution to the floating flocs problem. The data indicates that the change in dissolved oxygen of water that has been aerated and put under partial vacuum is minimal at best and does not occur in an acceptable period of time. However, one of subteam's biggest concerns is that the data collected thus far may be inaccurate due to equipment problems. Because of this, we plan to continue to experiment with the aeration setup in order to confirm or reject our move away from aeration method. As we collect new data, we will simultaneously be formulating other possible solutions to test experimentally.

Currently, Tiffany and I are beginning to run experiments with the newly constructed Aeration System. My accomplishments this semester include drafting up an AutoCAD diagram of the aeration experimental setup that can be found in the Floating Floc Team's Detailed Task List. By the end of the semester, I hope to have a full diagram of the system up on the wiki. Early in the semester, I also performed literature searches in order to find relevant information regarding factors facilitating bubble formation in supersaturated water. The articles I have found are:

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