What is sedimentation in water treatment?

What is sedimentation in water treatment?

• A. The process where solid particles dissolve in water
• B. The process where solid particles settle at the bottom of a tank due to gravity
• C. A method for filtering out chemicals from water
• D. The process of boiling water to remove impurities

Answer: (B)

Sedimentation in water treatment refers to the process wherein solid particles suspended in water settle out of the water column and accumulate at the bottom of a tank due to the force of gravity. This process is crucial in the treatment of water because it helps to remove larger particles, such as silt, sand, and other sediments, from the water before it undergoes further treatment. By allowing these heavier particles to settle, the overall clarity and quality of the water can be improved, making subsequent filtration and disinfection processes more efficient. The settling process usually takes place in a sedimentation basin or clarifier, where the water is stored for a period, facilitating the gravitational settling of particles. This helps in reducing the load on subsequent treatment stages and enhances the overall effectiveness of the water treatment process.

Sedimentation in water treatment refers to the process wherein solid particles suspended in water settle out of the water column and accumulate at the bottom of a tank due to the force of gravity. This process is crucial in the treatment of water because it helps to remove larger particles, such as silt, sand, and other sediments, from the water before it undergoes further treatment. By allowing these heavier particles to settle, the overall clarity and quality of the water can be improved, making subsequent filtration and disinfection processes more efficient.

The settling process usually takes place in a sedimentation basin or clarifier, where the water is stored for a period, facilitating the gravitational settling of particles. This helps in reducing the load on subsequent treatment stages and enhances the overall effectiveness of the water treatment process.