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Design a grit chamber for a wastewater treatment plant with an average flowrate of 25,000 m3/d...


Design a grit chamber for a wastewater treatment plant with an average flowrate of 25,000 m3/d and a peak flowrate of 55,000
Design a grit chamber for a wastewater treatment plant with an average flowrate of 25,000 m3/d and a peak flowrate of 55,000 m/d. The detention time at peak flow is 3.0 min. The width to depth ratio is 2:1. Use a depth of 2 m. The aeration rate is 0.4 m/min per m of tank length. a) Determine the total air required, (15 points) b) Dimensions of the grit chamber, (15 points) c) Determine detention time at average flow. (10 points)
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solution Given, Average flow rate (Q Aug. ) = 25,000 m3 day Peak flow rate (Speak) = 55,000 by Delention time at Peak Ita, Pe= 5.7292 m² nain bien will, odmah mon in a day X 24X60 min. lotal air required - 57092 m3 min Total air required = 8250.05 msAdditional of two tanks are used in grit chamber, then volume 52 of each tank (V.) = 2 . 114.583 . 02 Vez 57.29 is m3 rodoroc

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