BOD (biological oxygen demand) - The water quality indicator
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COD (Chemical oxygen demand) - Indicator for water pollution
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Biochemical oxygen demand (BOD)
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Dissolved Oxygen
12:05
Wirtz pumps are really clever
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Operator Certification: Wastewater Treatment Overview
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All Things Water Course I, Activated Sludge
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Biochemical Oxygen Demand (BOD): Explained details (Animation)
5:40