How Does COD Relate to Biochemical Oxygen Demand (BOD)?
Both COD and Biochemical Oxygen Demand (BOD) are indicators of organic pollution in water, but they measure different aspects. COD measures the total quantity of chemicals in water that can be oxidized, while BOD measures the amount of oxygen consumed by microorganisms to decompose organic matter. COD is generally used for rapid assessments, as it provides results in a few hours, whereas BOD testing takes about five days. Understanding the relationship between COD and BOD can provide comprehensive insights into the organic pollution levels and the treatability of wastewater.
