Question

Turbidity of raw water is a measure of

• A. Suspended Solids
• B. Acidity of Water
• C. B.O.D
• D. C.O.D

Hint:

Turbidity affects the aesthetic quality of water and can interfere with disinfection processes, as suspended particles can shield microorganisms from disinfectants. High turbidity can also indicate the presence of pathogens or other pollutants. While suspended solids are the direct cause, other parameters like organic matter might indirectly contribute to both turbidity and BOD/COD.

Answer 1

The Correct Option is A

Turbidity in raw water is a key parameter in water quality assessment. It measures the presence of suspended solids. Suspended solids are small particles that cause water to appear cloudy or opaque, reducing its clarity. These particles can include silt, clay, organic matter, algae, and plankton. Monitoring turbidity is crucial for ensuring water safety and quality, especially in water treatment processes.

Each of the provided options has a specific definition related to water quality:

• Suspended Solids: Directly related to turbidity, these are particles floating in water that cause cloudiness.
• Acidity of Water: Refers to the pH level, indicating if the water is acidic or basic.
• B.O.D (Biochemical Oxygen Demand): Measures the amount of oxygen required for the microbial decomposition of organic matter in water, indicating the organic pollution level.
• C.O.D (Chemical Oxygen Demand): Determines the total amount of chemicals (usually oxidizable substances) in the water, indicating the degree of chemical pollution.

The correct understanding is that turbidity specifically measures suspended solids in water.