What is an important characteristic of high-rate mixed media filters?

• A. Lower filtration rates
• B. Increased efficiency at lower depths
• C. Higher filtration flow rates
• D. Requires less maintenance

Answer: (C)

High-rate mixed media filters are designed to enhance the filtration process by allowing greater flow rates compared to traditional filters. This characteristic is particularly beneficial in water treatment facilities where the demand for clean water is high and efficiency is paramount.

The ability to handle higher flow rates means that these filters can process large volumes of water in a shorter amount of time, making them suitable for applications where speed and volume are critical. Furthermore, the mixed media composition—often involving a combination of different materials—can improve the filter's performance by effectively capturing various types of particles and contaminants.

The other options, while they may have relevance in specific contexts, do not reflect the primary advantage of high-rate mixed media filters as effectively as the ability to achieve higher filtration flow rates. This defining feature enables better operational efficiency and supports large-scale water treatment processes.