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Difference between BOD and COD | BOD Vs COD | permissible limit of BOD and COD | water treatment |

BOD (biological oxygen demand) - The water quality indicator

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Difference between BOD and COD #Bod_Cod

BOD & COD (CH)

Difference between COD and BOD in water and water analysis

Difference between BOD & COD/ Biochemical Oxygen Demand & Chemical Oxygen Demand

Difference between COD and BOD | COD Vs BOD | what is the difference between BOD and COD

Difference between BOD and COD

civil engineering difference in between BOD AND COD

Difference between BOD and COD || DO, BOD & COD || EVS || Environmental Science || Water Treatment

Biological Oxygen Demand vs Chemical Oxygen Demand

Difference between BOD and COD

COD (Chemical oxygen demand) - Indicator for water pollution

BOD AND COD | WHAT IS BOD | WHAT IS COD | BOD | COD

Difference Between BOD and COD | BOD vs COD | Water Pollution Indicators

БПК и ХПК в очистке воды 🔥|Интервью с UPSC..#шорты

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