ODOR
The problem of odor nuisance is related to the effect of odors on human olfactory receptors.
These odors are emitted by various sources that emit odorous compounds.
In such a case, it is important to determine the degree of odor nuisance of the plant.
For example, the BAT Conclusions on Best Available Techniques for the forging and foundry sector require the preparation of an environmental management system that includes, among other things, an odor management plan and periodic monitoring of odor emissions in order to improve environmental performance.
We offer, among others:
- Environmental Inspection regarding substance emissions, including determining the degree of odor nuisance at the plant (the exact scope of the inspection is presented in the offer)
- Ad hoc measurements if necessary
- Periodic odor monitoring performed, among others, by measurement in accordance with the EN 13725 standard (dynamic olfactometry).
- Proposing techniques to prevent odor nuisance, along with an analysis of the potential applications of these techniques. (Our specialists do not select specific devices, but rather suggest ways to solve the problem.)
- Modeling the spread of odorous substances (spread of odors) and analysis of the impact (impact) of odors
The analysis of odor spread aims to determine degree of olfactory impact a given installation/plant to the surrounding areas. To demonstrate the scale of odor spread, the highest concentrations of odorous substances (also known as maximum concentrations), the range of their impact, and the frequency of their occurrence can be determined.
Spread modelling may concern one or more installations or plants located in the vicinity.
The analysis of the impact of several odor sources – e.g. plants – allows, among other things, to determine the share of each of them in the total impact in a given area (this often applies to areas from which reports (accusations) regarding odor nuisance come from – most often these are reported by local residents as nuisances related to emitted odors.
We also offer ways to reduce the odor nuisance.
These are filtration methods of odor compounds thanks to the use of adsorption technique on the surface of activated carbon, aluminum oxide, zeolites.
The adsorption technique consists in the separation and subsequent retention of gaseous pollutant components (e.g. organic solvents, fragrance active substances or water vapor) on the surface of the adsorbent. Activated carbon and organic substances as well as minerals - alumina and zeolite are most often used as adsorbents. The characteristics of adsorbents include: large specific surface area, appropriate granulate size, hardness, flowability and ease of regeneration.
Three groups of compounds are responsible for the smell:
compounds having carbon in their structure (aldehydes, ketones, aliphatic and aromatic compounds)
sulfur compounds (hydrogen sulphide (H2S), mercaptans).
nitrogen compounds (ammonia (NH3), amines)
Sources emitting odorous compounds occur in almost every sphere of economic activity. Emission sources are divided into:
- unorganized and organized,
- permanent and periodic,
- linear (road, river); surface (landfills); point (exhaust, chimney).
The most onerous and at the same time the most common sources of odor emission include:
- agricultural production, including production farms,
- chemical industry - varnishes, solvents, dyes or even the production of cosmetics,
- rearing and breeding of animals (including fur animals),
- feed production,
- food industry using aromatic compounds, e.g. beer, wine, milk and meat processing,
- slaughterhouses,
- chipboards and chipboards (the process of drying and pressing the boards),
- waste management,
- paper industry,
- treatment plants,
- gastronomy,
- fat industry,
- coffee production,
- fish processing,
- plant protection products,
- refining industry.
The material is for information purposes only and is not an interpretation of the law. Due to possible changes in applicable law, all information provided should be verified and checked for validity.