Deposition of calcium carbonate solids in a water main is known as?

Deposition of calcium carbonate solids in a water main is known as?

• A. Scaling
• B. Corrosion
• C. Pigging
• D. Priming

Answer: (A)

Scaling is the process where calcium carbonate and other minerals form solid deposits within water mains and pipes. This often occurs when water is supersaturated with calcium and carbonate ions, typically due to changes in temperature or pressure. As the water flows through the pipes, these ions can precipitate out of the solution, leading to the buildup of scale on the surfaces of the water main. Understanding scaling is crucial for water distribution operators because these deposits can reduce the internal diameter of pipes, leading to decreased flow rates and increased pressure loss. They may also impact water quality. Other terms mentioned relate to different processes: corrosion refers to the deterioration of metal pipes due to chemical reactions; pigging involves cleaning pipes with specially designed tools known as "pigs"; priming is related to the process of filling a pump with liquid to enable it to function properly.

Scaling is the process where calcium carbonate and other minerals form solid deposits within water mains and pipes. This often occurs when water is supersaturated with calcium and carbonate ions, typically due to changes in temperature or pressure. As the water flows through the pipes, these ions can precipitate out of the solution, leading to the buildup of scale on the surfaces of the water main.

Understanding scaling is crucial for water distribution operators because these deposits can reduce the internal diameter of pipes, leading to decreased flow rates and increased pressure loss. They may also impact water quality.

Other terms mentioned relate to different processes: corrosion refers to the deterioration of metal pipes due to chemical reactions; pigging involves cleaning pipes with specially designed tools known as "pigs"; priming is related to the process of filling a pump with liquid to enable it to function properly.