Water Treatment Design Letter

Water Treatment Design Letter - Dr. Kauser Jahan Associate...

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Dr. Kauser Jahan Associate Professor of Civil and Environmental Engineering 33 Rowan Hall Glassboro, NJ 08028 Dear Dr. Jahan: We are submitting the results of the water treatment plant design conducted on the Garden City Water Treatment Facility. There were six steps in the water treatment process that were examined in order to determine an optimum design: rapid mix, coagulation and flocculation, settling, sand filtration, disinfection, and water softening. The rapid mix basins were determined to be square, with a width of 1.75 m, a depth of 2.5 m, and a volume of 7.66 m 3 . The flow rate through the system was assumed to be 50 MGD, or 0.219 m 3 /s. This flow was split into 10 separate trains, each containing two tanks. The detention time in each tank was approximately 35s, with a total detention time of 70s. The impellers used for these basins were determined to be 0.8 m in diameter, producing a power of 29.1 W at 15 rpm, assuming a water temperature of 5°C. The flocculation basins were determined to be square as well, with a width of 3.43 m, a depth
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This note was uploaded on 11/17/2011 for the course ENGINEERIN 1 taught by Professor Cag during the Spring '08 term at Rowan.

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Water Treatment Design Letter - Dr. Kauser Jahan Associate...

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