A tannery of processing plant with a wastewater flow of 0.011 cu.m/s and a BOD5 of 590 mg/L discharges into the river. The river has a 10 year, 7-day low flow of 1.7 cu.m./s. Upstream of the tannery, the BOD5 of the river is 0.6 mg/L. The BOD rate constants (k) are 0.115 day-1 for the tannery and 3.7 day-1 for the river. Calculate the ultimate BOD of the tannery wastewater, in mg/L.a. 1,972 mg/L b. 2,155 mg/Lc. 1,350 mg/L d. 1,264 mg/Le. None of these

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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 tannery of processing plant with a wastewater flow of 0.011 cu.m/s and a BOD₅ of 590 mg/L discharges into the river. The river has a 10 year, 7-day low flow of 1.7 cu.m./s. Upstream of the tannery, the BOD₅ of the river is 0.6 mg/L. The BOD rate constants (k) are 0.115 day^-1 for the tannery and 3.7 day^-1 for the river. Calculate the ultimate BOD of the tannery wastewater, in mg/L.

a. 1,972 mg/L
b. 2,155 mg/L
c. 1,350 mg/L
d. 1,264 mg/L
e. None of these

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