Yes, the drum filter is one of the most widely used particle removal technologies in RAS today. Large surface area, large grid pattern — quick removal of large particles. It sounds logical, but the facts tell a different story. There's another option for even more efficient particle removal - the disc filter.
When deciding to develop disc filters for fish farming, the main idea was to find a filter that offered more filter surface area in fewer square meters. But when we ran the two filters side by side, we discovered something else…
Not only did we find that the disc filter could handle larger amounts of water in fewer square meters — the disc filter also captured and removed large particles two to three times faster than the classic drum filter. This resulted in fewer large particles breaking up and clouding the water.
Both have their strengths, of course, but in many situations disc filters are simply more efficient.
Disc filters have a more compact and efficient design compared to drum filters. They consist of several discs that are mounted in a filter unit, which provides a larger filtering surface area within a smaller physical volume. Drum filters, on the other hand, use a cylindrical drum where the filtration takes place on the surface. This design often requires larger installations to handle the same amount of water.
Another factor making disc filters more efficient is their filtering capacity. Disc filters offer higher flow rates thanks to their more optimized use of filter space. The discs in a disc filter can be fitted close side by side, and they have more efficient particle capture, meaning they can handle a larger amount of particles in a shorter time. Read more about our disc filter here