Odour control
Bio-based solutions to neutralise odours
Odour emissions from industrial plants, composting, landfills, sewage treatment plants and livestock farms have a significant and negative impact on the quality of life of both residents and workers.
There are currently no specific regulations or limit values on odour emissions at national level. There are, however, clear references to the prevention and containment of ‘odour nuisance’ in legislation on air quality and waste and effluent management. Some regions have already issued laws and regulations for the containment of odour emissions and have set maximum emission limits in the atmosphere, pending the next adaptation to European guidelines
“Odour nuisance” falls under the regulations on the emission of pollutants into the atmosphere, although there are no benchmarks for verifying the intensity of odour emissions. Bad smell is considered a real form of environmental pollution.
How odours are measured?
- Analytical methods: gas chromatography, mass spectrometry valid for specific substances dissolved in gaseous fluids. These techniques do not allow the detection of odour nuisances.
- Olfactometric method: human noses, appropriately selected evaluators trained to recognise the intensity and pleasantness of odour.
- Sensory methods: electronic noses, biosensors combining the action of olfactory receptors and chemical/physical signal transducers.
- Olfactometric unit (OU): expresses a value that correlates the threshold concentration of the odour and its dilution in air.
Odour neutralisers are products born from the study of natural plant substances (flowers, fruits, herbs, roots, etc.) and from the fine-tuning of industrial biosynthesis processes to create complex mixtures of fragrances and essential oils. They have the ability to neutralise all types of odours and gaseous emissions directly at the source, be it from industrial processing, purification plants or livestock farms
The application of odour neutralisers can take place in the air (in rooms, wastewater treatment plants, sewage storage tanks, porous floors, toilets, urinals, scrubbers and chimneys) or by contact (landfills, composting plants, waste disposal, sludge tanks, sewage treatment plants, septic tanks, stables, livestock farms, chemical toilets and cesspools).
The BBA Ecotech solution: MasterDeo line of odour neutralisers
Unlike conventional air fresheners and room fragrances, the odour neutralisers in the MasterDeo range produced by BBA Ecotech do not mask odours in the air but instantly break them down at their source. The mechanism of action by which neutralisation takes place is based on the chemical or physical destruction of the molecules that make up the odours, without masking them with other substances (perfumes, deodorants, etc.).
Each product in the MasterDeo line is water-soluble and contains different plant extracts, herbs, flowers, fruits and essential oils, suitably blended to act specifically against certain odour molecules
- MASTER DEO FW: odour neutraliser to be inoculated directly into the depuration sludge.
- MASTER DEO HT: odour neutraliser to be sprayed on the surface of the sludge.
- MASTER DEO AR Tech: odour neutraliser for the elimination of unpleasant odours from the air, also suitable in the presence of operators.
- MASTER DEO CT/FR: odour neutraliser by contact (surfaces, products, etc.)
- MASTER DEO KC: odour neutraliser specific for livestock slurry, to control the presence of bad odours during the spreading of manure as fertiliser, especially if in the proximity of residential areas and during summer periods to avoid odour pollution problems.
