Quantify volume of air supply if the rate is 0.3 m3/minute-m length of chamber. Assume W: D is 1.2:1, while depth is 3m for the treatment of municipal waste water. The average wastewater flow is 0.5m3/sec, and the peak flow factor is 2.7 times of average flow. Use two tanks calculate the grit chamber volume and grit materials if 0.05 m

Structural Analysis
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Question # 2 (a): Quantify volume of air supply if the rate is 0.3 m3/minute-m length of chamber. Assume W: D is 1.2:1, while depth is 3m for the treatment of municipal waste water. The average wastewater flow is 0.5m3/sec, and the peak flow factor is 2.7 times of average flow. Use two tanks calculate the grit chamber volume and grit materials if 0.05 m3/103m3 of peak flow is the grit concentration. Assume the average detention time is 180 seconds and horizontal velocity 0.25m/sec, while settling velocity is 0.03 m/sec. Subject: Environmental Engineering
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