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One of the contributing factors to air entrainment at the beginning of the water treatment process in AguaClara plants is the waterfall effect inside the LFOM. To minimize this waterfall effect the following retrofit designs were calculated and tested in lab:
- 1) Pipe Inside LFOM: A pipe of a small diameter would be placed within LFOM with about a few inches of separation between the outer surface are of the pipe and the inner surface area of the LFOM. t
- 2) Vertical/Inclined Plane: A verticle or inclined plane would be placed within the LFOM that would prevent the water jets from hitting the surface of the water directly.
- 3) Bucket with Holes: A bucket would be placed inside of the LFOM that would catch the water jets and slow down the inflow of water by using an orifice.
- 4) Bucket with out Holes: Rather than have an orifice slow down the flow of water in the LFOM the bucket would be over flooded so that the water dribbles down the side of the bucket.
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