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The sedimentation tank design is significantly different from previous designs. The main problem that brought about the change is that too much sludge was settling out in the inlet manifolds at Cuatro Comunidades. There was originally a similar design for Agalteca, so it needed to be fixed. To see a list of ideas we thought of on how to fix this problem until we decided on our final design, click here.
The final design involves an inlet pipe down the center of the tank instead of two inlet manifolds. The pipe will be a 6" diameter PVC pipe. The inlet manifolds will be filled in with concrete. The slopes will remain so that flocs are directed toward the sludge drain.