The material is produced by grinding dry, leafless heather branches.
BURÉS PROFESIONAL, S.A., has developed the “Heather Biofilter” product using a mixture of heather in various particle sizes, followed by further processing at the plant to produce a material capable of absorbing odor-causing compounds and other pollutants from the exhaust air stream. Free-living microorganisms that naturally proliferate on this organic material use these compounds as a source of nutrients and energy through aerobic decomposition.
This product is made from 100% plant biomass derived from heather; it is highly efficient and has a long service life, and is sourced from landscaping and forest clearing activities.
The heather used by Burés PROFESIONAL, S.A., is characterized by growing in environments without significant amounts of grasses or other vegetation, and, in addition to having high porosity—which provides a large surface area for contact with the exhaust airflow—heather is used to create a support framework for filling with soft organic materials, primarily peat.
It is important to note that the valuable part of heather as a biofilter is the wood, not the leaves.
Heather can be used successfully in both open and closed biofilters, although its use as the sole component of the biofilter bed limits its application to situations involving low odor intensities and low-to-moderate gas flow rates.
