Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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In a BOD test, 5 ml of wastewater (with no dissolved oxygen) is diluted with 295
ml of water containing 8.5 mg/1 of dissolved oxygen. After 5 days incubation at
25°C, the dissolved oxygen content of the mixture is 5 mg/1. Temperature
coefficient can be taken as 1.047 and BOD rate constant is 0.23 per day (base e)
at 20°C. The ultimate biochemical oxygen demand of the wastewater is
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Transcribed Image Text:In a BOD test, 5 ml of wastewater (with no dissolved oxygen) is diluted with 295 ml of water containing 8.5 mg/1 of dissolved oxygen. After 5 days incubation at 25°C, the dissolved oxygen content of the mixture is 5 mg/1. Temperature coefficient can be taken as 1.047 and BOD rate constant is 0.23 per day (base e) at 20°C. The ultimate biochemical oxygen demand of the wastewater is
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