1. Diatomite filter aid is also known as Diatomaceous Earth, Kieselguhr, Kieselgur, and Celite. 2. Diatomite filter aid is white or pink. 3. It is very porous which makes it used extensively as a filter for a variety of purposes. 4. It is used to filter impurities out of everything from beer, wine and other kinds of things. 5. Diatomite filter aid is also widely used to filter impurities from water to produce drinkable water in public water systems.