The city of Annandale has been directed to upgrade its primary wastewater treatment plant to a...
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The city of Annandale has been directed to upgrade its primary wastewater treatment plant to a secondary treatment plant with sludge recycle that can meet an effluent standard of 11 mg/l BOD5. The following data are available: Flow = 0.15 m³/s, MLSS = 2,000 mg/L. Kinetic parameters: K, = 50 mg/L, µmax = 3.0 d-', k̟ = 0.06 d-', Y = 0.6 Existing plant effluent BOD, = 84 mg/L. a. Calculate the SRT (0c) and HRT (0) for the aeration tank. b. Calculate the required volume of the aeration tank. c. Calculate the food to microorganism ratio in the aeration tank. d. Calculate the volumetric loading rate in kg BOD,/m³-d for the aeration tank. %3D %3D e. Calculate the mass and volume of solids wasted each day, when the underflow solids concentration is 12,000 mg/L. The city of Annandale has been directed to upgrade its primary wastewater treatment plant to a secondary treatment plant with sludge recycle that can meet an effluent standard of 11 mg/l BOD5. The following data are available: Flow = 0.15 m³/s, MLSS = 2,000 mg/L. Kinetic parameters: K, = 50 mg/L, µmax = 3.0 d-', k̟ = 0.06 d-', Y = 0.6 Existing plant effluent BOD, = 84 mg/L. a. Calculate the SRT (0c) and HRT (0) for the aeration tank. b. Calculate the required volume of the aeration tank. c. Calculate the food to microorganism ratio in the aeration tank. d. Calculate the volumetric loading rate in kg BOD,/m³-d for the aeration tank. %3D %3D e. Calculate the mass and volume of solids wasted each day, when the underflow solids concentration is 12,000 mg/L.
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Answer rating: 100% (QA)
Giren Hs at ML SS X 2000 mgIL Q 015 m3s Ks s0mgl L Amare 30dy06 ... View the full answer
Related Book For
Business Math
ISBN: 978-0133011203
10th edition
Authors: Cheryl Cleaves, Margie Hobbs, Jeffrey Noble
Posted Date:
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