An innovative process with guaranteed results
The Hantsch solution consists of striking the right balance between pre-compost olfactory stabilization and biomass drying, through slow grinding and three weeks of bio-drying.
Alan Guegan, engineering director of Hantsch, describes the process: “After pre-heating with oxygen-driven aeration, we screen the material into three fractions whose particle sizes are adjustable to the needs of the market. The wood is then easily cleaned of its impurities and the stabilization of the non-odorous fine fraction is completed by mechanical turning. Our technology adapts to the variability of plant waste, anticipating regulatory changes in the biomass market. All this is achieved while producing up to 22 percent per year of clean dry wood, and without any odour nuisance for residents.”
To limit effluent release, the wastewater is filtered biologically in reed beds. The Hantsch solution together with the Komptech machines have resulted in a simple and robust process, adaptable to seasonal variations of green waste and aimed at producing a quality fuel free of undesirable ingredients, and a perfectly stabilized compost.