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What geometry is required for the floc blanket section of a high rate sedimentation tank?
Is it important that the floc blanket section of the reactor (including any internal components designed to increase floc blanket concentration) have an axis of symmetry that is vertical to eliminate excessive transport of flocs by gravity in a horizontal direction?
Do variations of geometry of plates (zig zag, porous, sloped or horizontal, or other geometries) increase the concentration of a floc blanket at high upflow velocities?
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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 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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