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AguaClara / UASB

AguaClara's wastewater team devoted to creating sustainable wastewater treatment in under-served communities
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UASB design to do list for purchasing materials #127

Open ninablahut opened 5 years ago

ninablahut commented 5 years ago

CONSIDERATIONS THAT NEED TO BE THOUGHT OUT BEFORE WE PURCHASE MATERIALS FOR INFLUENT SYSTEM @Kanha-Matai @shaniafang @ezl5

  1. Figure out dimensions/material of holding tank that tipping bucket dumps into/if we are using previous team’s tank, figure out that info.
  2. Figure out how tipping bucket will be attached to holding tank/supports for holding tank
    1. Factor this into supply list for how much 80-20 extrusion we need to purchase
    2. It would be good to do this in onshape
  3. Figure out how flow dividing tank will connected/welded to holding tank. Make sure that the materials of each bucket are compatible to be welded together/ will be watertight.
  4. Figure out how the walls of the flow dividing tank will be inserted. Make sure that the material of the walls/material of flow dividing tank are compatible to be welded together
    1. also, use this in determining how much walling we need to order. *remember it should be 1.5” thickness. (design/dimensions available in report)
    2. A strength of analysis for the bottom of the bucket to insure that it can handle having 4, 3.5” holes drilled into it. (design/dimensions available in report)
  5. Figure out how the influent pipes will be attached to their respective holes in the flow dividing tank. Make sure that the PVC influent pipes/flow dividing tank are compatible to be welded together.
    1. *Just realized our design currently is to drill 3.5" holes (pipe OD), I think it would be better to drill 3" holes, then weld the wall of each pipes to the bottom of flow tank.
  6. Finalize design for supporting the influent system. We currently are thinking that we want to have the pivots for the tipping bucket supported by 80/20 extrusions. We will need additional supports at the flow dividing tank and/or the horizontal parts of influent tubes.
    1. This should be added to the CAD model.
    2. Would be good to do a little statics action here and actually calculate the expected load the influent system will have to carry.
  7. Strength of analysis to ensure that the entrance holes on the actual reactor are far enough away from each other for structural integrity.
  8. Find all necessary materials preferably on McMaster Carr and add to table on googledoc.

THINGS TO TRY TO TEST OUT IN PYTHON

  1. Use previous teams’ hydraulic code or write code to estimate exit velocity of wastewater from the influent pipes
  2. Test HRT with finalized dimensions (should be in range of 4-8 hours)