Page History

...

• Test plate settler performance with and without a floc blanket to access the utility of floc blankets.

  Triangular manifold for sed tanks (max 2)

• Build manifold prototype and test ability to uniformly deliver flow to plate settlers
• Explore overlapping alternating jets from the two manifolds as an inlet configuration that would distribute flow more uniformly into a sed tank (where jets impinge flow would be vertical toward center of tank, where jets miss each other flow would be toward walls of the tank)

  Tapered flocculation (max 2)

• Experiment with alternative designs for G vs Gθ (this could interfere with the sedimentation research. Perhaps this should wait until the tube floc and CFD research teams can provide an improved design.)
• Determine properties of tube flocculation with raw water. (ideal settling velocities, floc densities, Gtheta values)

Floating flocs, dissolved air (2 max)

We still have trouble with floating flocs, or foamy sludge growing
appearing on the surface of the sed tanks, particularly in Tamara. Now we need to figure out how
to get the air out of the water in Tamara. They seem to have trouble
keeping air out of the conduction line (it's a pretty complicated
line, about 15 km long with 5 pressure break boxes) and are also
having trouble with the line rupturing at weak points. They have some
air valves, but we're not sure if they are all working. Once they get
the leaks fixed and regulate valves in the line so it is always full,
that may help. Another idea suggested by APP to get rid of the
disolved air is a small open tank just before the plant where some of
it might bubble out.

Computation Fluid Dynamics (baffled flocculator) (Yong Max 2)

...