HRS - Plate Settlers
Can the upflow velocity in the AguaClara sedimentation tank be significantly (factor of 2 to 10) increased without degrading performance?
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Sedimentation is the slowest process in the flocculation, sedimentation, filtration treatment train. Currently, AguaClara sedimentation tanks are less than half the height of traditional sedimentation tanks, but another goal is to also reduce they also are looking into methods of reducing the plane view area. This can only be achieve achieved if there is a higher upflow velocity through the sedimentation tank, which and would result in a direct turn greatly decrease in plant construction costs.
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Plate settlers can easily have a capture velocity that is 1/10th the upflow velocity. Thus it might be possible to design plate settlers for an upflow velocity of 2 to 10 mm/s and a capture velocity of 1 mm/s. The 1 mm/s capture velocity would capture the same flocs that are normally captured by an AguaClara floc blanket. This semester, the plate settler team will focus on designing different plate geometries to concentrate the floc blanket and increase floc size. Some designs to potentially look into are porous and zigzag plates, which will be stuck lie in the floc blanket.
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Members Yuqi Yu: yy648@cornell.edu Lishan Zhu : lz242@cornell.edu Aobei (Albert) Cheng : ac2325@cornell.edu Sidney Lok : sgl38@cornell.edu
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