with a wastewater flow of 0.011 m3/s and a BOD5 of 590 mg/L discharges into the Cattaraugus Creek (Nemerow, 1974). The creek has a 10-year, 7-day low flow of 1.7 m3/s. Upstream of the tannery, the BOD5 of the creek is 0.6 mg/L. The BOD rate constants k are 0.115 d21 for the tannery and 3.7 d21 for the creek. The temperature of both the creek and the tannery wastewater is 208C. Calculat
with a wastewater flow of 0.011 m3/s and a BOD5 of 590 mg/L discharges into the Cattaraugus Creek (Nemerow, 1974). The creek has a 10-year, 7-day low flow of 1.7 m3/s. Upstream of the tannery, the BOD5 of the creek is 0.6 mg/L. The BOD rate constants k are 0.115 d21 for the tannery and 3.7 d21 for the creek. The temperature of both the creek and the tannery wastewater is 208C. Calculat
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A tannery with a wastewater flow of 0.011 m3/s and a BOD5 of 590 mg/L discharges into the Cattaraugus Creek (Nemerow, 1974). The creek has a 10-year, 7-day low flow of 1.7 m3/s. Upstream of the tannery, the BOD5 of the creek is 0.6 mg/L. The BOD rate constants k are 0.115 d21 for the tannery and 3.7 d21 for the creek. The temperature of both the creek and the tannery wastewater is 208C. Calculate the initial ultimate BOD after mixing. Answers: LoTannery 5 1,349.2 mg/L, LoCreek 5 0.6 mg/L, La 5 9.27 or 9 mg/L
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