What type of filter is known for its low construction costs?

What type of filter is known for its low construction costs?

• A. Membrane filter
• B. Rapid sand filter
• C. Slow sand filter
• D. Carbon filter

Answer: (C)

The slow sand filter is known for its low construction costs. This is largely due to its simple design and materials that do not require expensive or complex components. Slow sand filters typically consist of a bed of sand with an underdrain system, making them relatively easy to construct and maintain. They operate primarily through biological processes that occur within the sand layer, which can effectively remove suspended solids and pathogens. This simplicity in design, combined with the minimal maintenance requirements, allows slow sand filters to be economical, especially in small-scale or community water treatment applications. In contrast, other types of filters, such as membrane filters, rapid sand filters, and carbon filters, generally involve more elaborate constructions, higher operational costs, and sometimes require more sophisticated technology and infrastructure. Therefore, the slow sand filter stands out as the most cost-effective option among the various filter types.

The slow sand filter is known for its low construction costs. This is largely due to its simple design and materials that do not require expensive or complex components. Slow sand filters typically consist of a bed of sand with an underdrain system, making them relatively easy to construct and maintain.

They operate primarily through biological processes that occur within the sand layer, which can effectively remove suspended solids and pathogens. This simplicity in design, combined with the minimal maintenance requirements, allows slow sand filters to be economical, especially in small-scale or community water treatment applications.

In contrast, other types of filters, such as membrane filters, rapid sand filters, and carbon filters, generally involve more elaborate constructions, higher operational costs, and sometimes require more sophisticated technology and infrastructure. Therefore, the slow sand filter stands out as the most cost-effective option among the various filter types.