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Biochemical oxygen demand (BOD) refers to the amount of dissolved oxygen consumed by microorganisms in the process of decomposing certain oxidizing substances present in water under specified conditions, especially organic matter during the biochemical reaction. Under normal circumstances, it means that the water sample is sealed in the culture bottle and cultured in the dark at 20±1℃ for 5 days, the dissolved oxygen concentration of the water sample before and after culture is measured, and the dissolved oxygen consumption per liter of the sample is calculated. BOD is a kind of environmental pollution index, which is mainly used to determine the pollution status of organic matter in water. It can also be used as a basis to evaluate the operational efficiency of sewage treatment plants in order to find the right treatment methods.
Biochemical oxygen demand (BOD) refers to the amount of dissolved oxygen consumed by microorganisms in the process of decomposing certain oxidizing substances present in water under specified conditions, especially organic matter during the biochemical reaction. Under normal circumstances, it means that the water sample is sealed in the culture bottle and cultured in the dark at 20±1℃ for 5 days, the dissolved oxygen concentration of the water sample before and after culture is measured, and the dissolved oxygen consumption per liter of the sample is calculated. BOD is a kind of environmental pollution index, which is mainly used to determine the pollution status of organic matter in water. It can also be used as a basis to evaluate the operational efficiency of sewage treatment plants in order to find the right treatment methods.
