Professional Report

Filter material made of glass beads

An alternative to filter sand? Part 1

Dipl.-Phys. Walter Markiel und Dipl.-Ing. Eberhard Wistuba, ETC engineering & technology consulting GmbH, Burgau

Glass balls, also referred to as marbles, to be used as filter material, sounds very exotic, but it is not. For a long time Glass spheres are used in modern well construction as a stock material for drills in drinking water production. In 2007, the first well, a "bedrock" in Roßtal, district of Fürth, was fitted out. In the meantime, glass beads have become established in this sector as a substitute for filter sands and gravels, because due to the homogeneous shape and the diameter distribution of glass spheres the so-called. regeneration-effort well could be significantly reduced.