Is COD Measured in Mol/Litres or mg/L?

Thread starter qazi75
Start date May 5, 2012
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Chemical Oxygen

In summary, COD measurement is a method used to determine the amount of oxygen required to chemically break down organic matter in a water sample. It is measured by adding a strong oxidizing agent and typically expressed in units of mol/L or mg/L. COD measurement is important for assessing water quality and identifying potential sources of pollution. Factors such as the type of oxidizing agent, temperature, pH, and interfering substances can affect COD measurement results. Careful adherence to standardized methods and consideration of these factors is essential when interpreting COD results.

May 5, 2012

qazi75

Can we measure COD in Mol/Litres?

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May 5, 2012

Borek

Mentor

Any concentration unit will do, as it is always possible to convert between concentrations. But by convention it is reported as mg/L.

1. What is COD measurement?

COD measurement stands for Chemical Oxygen Demand measurement. It is a method used to determine the amount of oxygen required to chemically break down organic matter in a sample.

2. How is COD measured?

COD is measured by adding a strong oxidizing agent to a water sample and measuring the amount of oxygen consumed during the oxidation process. This is typically done through titration or colorimetric methods.

3. What units are used to express COD measurement?

COD measurement is typically expressed in units of mol/L or milligrams per liter (mg/L). These units indicate the concentration of oxygen required to break down the organic matter in the sample.

4. Why is COD measurement important?

COD measurement is important because it provides valuable information about the amount of organic matter present in a water sample. This can help determine the overall water quality and identify potential sources of pollution.

5. What factors can affect COD measurement results?

There are several factors that can affect COD measurement results, including the type and concentration of oxidizing agent used, temperature, pH, and the presence of interfering substances. It is important to carefully follow standardized methods and consider these factors when interpreting COD results.