(2) If the BOD of a municipal wastewater at the end of 7 days is 60.0 mg/L and theultimate Bod is 85.0 mg/L, what is the rate constant? Assuming the data weretaken at 25C, compute the rate constant at 16C.

Understanding how microorganisms in the water digest organic matter requires an understanding of the…

Answered: (2) If the BOD of a municipal…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A wastewater sample was diluted 10% with tap water for conducting BOD Test. The DO content in wastewater sample was 1.2 mg/l and water was 6 mg/l. After 5 days incubation at 20°C, the DO of the sample was 0.5 mg/l. Calculate (1) 5 day BOD of wastewater and (ii) ultimate BOD. Assume K₂ = 0.12/day.
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Q- If the BOD3 of a wastewater sample is 75 mg/L and reaction rate constant k (base e) is 0.345 per day, find the amount of BOD remaining in the given sample after 10 days.
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If the BOD3 of a wastewater sample is 75 mg/l and reaction rate constant k (base e) is 0.345 per day, the amount of BOD remaining in the given sample after 10 days is 1. 3.21 mg/L 2. 3.45 mg/L 3. 3.69 mg/L 4. 3.92 mg/L
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After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44 m³/s (10 MGD) is then treated in an activated sludge system with an SRT of 12 d and an HRT of 6 h. Given the biokinetic parameters tabulated below, determine the aeration volume (m³). Parameter Value 3d¹ 60 mg/L BODs 0.10 d¹ 0.6 mg VSS/mg BOD5 Hmax Ks ka Y
A 3 mL industrial wastewater sample is added to a BOD bottle (300mL). The initial D.O. concentration is 11.2 mg/L. After five days the D.O. concentration is 3.6 mg/L. Calculate the BOD 5 in mg/l
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✓ Problem 1: If the BOD of a municipal wastewater at the end of seven days is 60 mg/L and the ultimate BOD is 80.0 mg/L, what is the rate constant (base 10)? Convert the rate constant to base e. Also, calculate the 5-day BOD. athed alculate the ROD rate constant in
A 8.5 ml of sample of wastewater is diluted to 300 ml with distilled water in standard biochemical oxygen demand bottle dissolved oxygen were initial 9.2 mg/l 3 days 8.7 mg/l and after 5 days 6.4 mg/l at 20 c determine the biochemical oxygen demand for three and five days of the wastewater then compute the ultimate BOD assume k=0.12/d

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(2) If the BOD of a municipal wastewater at the end of 7 days is 60.0 mg/L and the ultimate Bod is 85.0 mg/L, what is the rate constant? Assuming the data were taken at 25C, compute the rate constant at 16C.