Get the free DETERMINATION OF CHEMICAL OXYGEN DEMAND COD - educhimica

COMEDIES BILATERAL PARTENARIATE 2012/2014 WATER POLLUTION IN URBAN AREAS: ANALYSIS AND TREATMENT IstitutoTecnico Fall Gymnasium Heralds E. Fermi Kopparvgen, 1 Via San Plato, 37 70143 FAUN 31100 TREVINO

How to fill out determination of chemical oxygen

How to fill out determination of chemical oxygen:

1. Start by gathering all the necessary equipment and materials, such as a chemical oxygen demand (COD) test kit, water sample, and reagents.
2. Carefully read the instructions provided by the test kit manufacturer to familiarize yourself with the specific steps and procedures.
3. Take the water sample that you want to test and transfer a known volume of it into a clean glass container.
4. Add the appropriate amount of reagents to the water sample according to the instructions. These reagents help in oxidizing the organic matter in the sample.
5. Mix the contents of the container thoroughly to ensure uniform oxidation throughout the sample.
6. Allow the mixture to react for a specific amount of time, as specified in the instructions.
7. After the reaction period, measure the color intensity of the sample using a colorimeter or a spectrophotometer. The color intensity is directly proportional to the concentration of chemical oxygen demand.
8. Record the results obtained from the colorimeter and follow any calculations or conversions mentioned in the test kit instructions to determine the final chemical oxygen demand value for the sample.

Who needs determination of chemical oxygen?

1. Environmental agencies and organizations often require the determination of chemical oxygen demand to assess the water quality in various ecosystems. It is a critical parameter used to evaluate the pollution levels and the potential for environmental impact.
2. Industries that generate wastewater, such as chemical plants, pharmaceutical companies, and food processing facilities, need to monitor and control their effluents for compliance with environmental regulations. Determining the chemical oxygen demand helps them understand the organic load in their wastewater and optimize their treatment processes.
3. Researchers studying water pollution, aquatic ecosystems, or the impact of various substances on the environment may require determination of chemical oxygen demand to gather data for their studies and analysis. It can help them assess the impact of pollutants on the health and balance of aquatic systems.

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