FILTER GRANULATE

摘要

The invention relates to an inherently stable filter material in the form of long fiber granulates (10) in which chemically and/or biologically active additives can be stored and fixed. The filter material according to the invention can be obtained from a fiber mixture comprising a combination of non-fusing and fusing fibers or fibers having different fusing points, wherein the fusing component of the fiber mixture solidifies the outer edge (mantle zone 4) of the granulate, while non-solidified spiral-shaped fiber bundles are present in the interior of the granulate (core zone 3). The inherently stable filter material can be used in plants as a physically and/or chemically/biologically active ballast for cleaning out disruptive components in biogases and hazardous materials in the exhaust.