7-25. A short distance downstream from the tannery in Problem 7-23, a glue factory and a municipal wastewater treatment plant also discharge into Cattaraugus Creek. The wastewater flows and ultimate BODs for these dis- charges are listed below. Determine the initial ultimate BOD after mixing of the creek and the three wastewater discharges. Source Glue factory Municipal WWTP Flow, m³/s Ultimate BOD, mg/L Temperature, °C 20 20 0.13 0.02 255 75

Structural Analysis
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Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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7-25. A short distance downstream from the tannery in Problem 7-23, a glue
factory and a municipal wastewater treatment plant also discharge into
Cattaraugus Creek. The wastewater flows and ultimate BODs for these dis-
charges are listed below. Determine the initial ultimate BOD after mixing of
the creek and the three wastewater discharges.
Source
Glue factory
Municipal WWTP
Flow, m³/s Ultimate BOD, mg/L Temperature, °C
0.13
20
0.02
20
255
75
WATER POLLUTION
445
Transcribed Image Text:7-25. A short distance downstream from the tannery in Problem 7-23, a glue factory and a municipal wastewater treatment plant also discharge into Cattaraugus Creek. The wastewater flows and ultimate BODs for these dis- charges are listed below. Determine the initial ultimate BOD after mixing of the creek and the three wastewater discharges. Source Glue factory Municipal WWTP Flow, m³/s Ultimate BOD, mg/L Temperature, °C 0.13 20 0.02 20 255 75 WATER POLLUTION 445
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