Fine-Particle Filtration with ZeoSand

Conventional silica sand filters are commonly associated with practical particulate removal in the approximate 20–40 micron range. Because sand particles are dense and non-porous, suspended solids are often retained near the upper portion of the filter bed, which can contribute to rapid pressure-rise development.

Porous zeolitic filter media such as ZeoSand have substantially greater internal porosity and surface area than conventional silica sand. These characteristics promote practical fine-particle retention in the approximate 2–5-micron range, higher dirt-loading capacity, slower pressure-rise development, and reduced backwash frequency under favorable operating conditions.