MAIN ADVANTAGES • high efficiency • low energy consumption • low capital outlay • easy installation • suitable for various loads • regeneration of existing plant OPERATING PRINCIPLE bioset structured packing media are made from alternating series of flat and/or corrugated sheets of PVC (see enclosed technical sheet) glued to create a lightweight, strong and stiff structure. These modules are self-bearing and can withstand high loads. With their careful design, these structures offer a high active surface area for bacteria cultures in a relatively small volume and have free passages large enough to avoid the build-up of abnormal bacteria growth that could clog the filter. The percolating liquid flows vertically or in cross currents. The liquid is prevented from dripping throughout the module. There are further corrugated sections in the moulded sheets to allow for easy attachment of the biomass and to increase the local turbulence which favours the exchange of oxygen between the air and the sewage. The thermoformed sheets prevent free fall of the sewage (evenly spread at the top) and also make it easier for the sewage to move along by wetting all the useful surface with a thin even layer. A flow of air (natural circulation) passes over the sewage, which contains oxygen and organic residues, thus providing the elements needed to develop the bacteria on the surface of the media. Thanks to their modular structure and relatively low weight, these modules are easy to handle, store and install in towers. They can be supplied as separate unglued sheets for distant destinations and then assembled on site using easily manoeuvrable machinery, also suitable for unskilled workers.

TECHNICAL CHARACTERISTICS model