Substrate material for a biofilm and biofilm reactor.

摘要

A substrate material for a biofilm is disclosed for use in a biofilm reactor characterised in that the substrate material comprises a three-dimensional thermoplastic polymeric layer composed of a ground layer having a sheet structure with or without a multiplicity of perforations or openings, or having a net structure, and which ground layer is provided at least at one major side with a multiplicity of projections. Also the use is disclosed of the said substrate material as substrate material for the biofilm in a biofilm reactor. Furthermore, a biofilm reactor is disclosed containing the said substrate material for the biofilm, as well as a process for the purification of aqueous effluents containing organic waste by means of the said biofilm reactor. The substrate material and the biofilm reactor are suitable for use in systems for the purification of waste waters from agro-industries, food industries and beverage industries.