I am a member of the Design Team, working on the flocculation tank. Our first task was to move the ports that connect the channels from the top to the bottom of the tank walls. From a structural perspective, this is more sound as it allows those that build the plant to tie the walls together at the top of the wall. Since the sedimentation tank is drawn before the flocculation tank, how the water gets out of the floc tank is determined by how it gets into the sed tank. We moved this exit port so that the water could flow between the tanks. Once the ports between the channels had been moved, the baffles had to be adjusted to accommodate this new water pattern (i.e. up-down instead of down-up). Our current task is editing the design process that determines the number of baffles in the last channel before the sedimentation tank, so that the water (no matter what the size of the tank is) will flow under the last baffle and up to the port that connects the floc to sed tanks. This entails ensuring that the number and spacing of the baffles is still consistent with the energy dissipation requirements of the process as well as with the physical arrangement of the exit port with respect to the baffles, baffle fittings, etc.
- See the Midterm Wiki Report Drawings for a more detailed description.
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