You operate a composting site, waste management site, wastewater treatment plant, or any odorous process… do you truly know where your odor emissions originate from and which source you should target for odor abatement to address or prevent off site odor complaints? If the answer is “No” or “I think so, such process smells a lot”, you may want to consider performing an odor diagnosis.
A diagnosis involves a systematic approach to asses a site’s overall odor emissions by sampling critical odor sources, evaluating their odor concentrations (Odor unit per m3 : o.u./m3) by olfactometry using standardized methods and calculating their odor emission rates (Odor unit per seconds : o.u./s) using information from the process and sources. For sources with known or suspected odor level variability, multiple samples can be analyzed to asses its magnitude. A clear picture of each source’s contribution to your site’s odor emissions can then be produced. This data (accompanied by an odor dispersion study) can be used to establish an odor management plan or to communicate your site’s odor reduction performance after modifications. The odor diagnosis can also be geared toward assessing the odor removal efficiency of a biofilter, scrubber or any other odor control technology you may have in place, it can also be used to assess the need for the implementation of an odor monitoring system. The first diagnosis may surprise you: your odor source ranking may indicate a totally different odor footprint than that perceived, and hopefully this is done before significant amount of investments are made on odor mitigation of secondary odor sources. More information can be found on Odotech’s website.