Yuqi Yu 's Individual Contribution Page

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Spring 2016 Contributions

In this semester, I am part of the High Rate Sedimentation team. We try to design a sedimentation tank with higher flow rate. By doing this, we can actually decrease the area of sedimentation tank in a plant. Our subteam will play with the plate settlers and try to set the plate settlers in floc blanket.

Fall 2015 Contributions

This semester I am in the High Rate Sedimentation subteam this semester. Out team goal for this semester is Our team try to increase the upflow velocity in the sedimentation tank by a factor of 2 to 10 withour without degrading the performance of the tank. To We also want to keep the floc blanket in the sedimentation tank. In order to achieve this goal, we plan to work on the following parameters:

• The geometry of the overall sedimentation tank
• The geometry and capture velocity of the plate settlers above the floc blanket
• The geometry and capture velocity of the potential plate settlers in the floc blanket
• The correlation between the plate settlers with a capture velocity of 1 mm/s and the plate settlers with a capture velocity of 0.12 mm/s
• The transportation of flocs to the floc hopper when there is a high upflow velocity in the sedimentation tank

 we design two sets of plate settlers in our propose sedimentation tank, one set near the bottom of the tank that will be suspended within the floc blanket, and one above them to capture finer particles. I worked on the design of the bench scale new sedimentation tank for the pipe experiment. I also helped to build the apparatus and run the experiments.