Suspended solids can be removed by filtering and dissolved solids cannot.

Suspended solids can be removed by filtering and dissolved solids cannot.

• A. False
• B. True
• C. Cannot be removed by filtration
• D. Only by chemical treatment

Answer: (B)

Filtration removes solids that are actually particles suspended in the water. These particles are large enough to be trapped in the filter media as water passes through. Dissolved solids, on the other hand, are minerals and salts that are in solution and do not form particles to be caught by a standard filter, so they pass through. To remove dissolved solids, other treatment methods are used, such as ion exchange, reverse osmosis, distillation, or chemical precipitation. In typical water treatment, filtration reduces turbidity by removing suspended solids, while dissolved solids remain until a different treatment step is applied. This makes the statement true.

Filtration removes solids that are actually particles suspended in the water. These particles are large enough to be trapped in the filter media as water passes through. Dissolved solids, on the other hand, are minerals and salts that are in solution and do not form particles to be caught by a standard filter, so they pass through. To remove dissolved solids, other treatment methods are used, such as ion exchange, reverse osmosis, distillation, or chemical precipitation. In typical water treatment, filtration reduces turbidity by removing suspended solids, while dissolved solids remain until a different treatment step is applied. This makes the statement true.