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Open Access Odor Monitoring at the City of Montreal Waste Water Treatment Plant

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The City of Montreal Waste Water Treatment Plant (the Plant) is located in an urban area and has a treatment capacity of 3 million people-equivalents. The sequence of record-breaking hot summers since 1998 contributed to an increase in the number of odor complaints linked to the Plant. Consequently, various measures were implemented for ever-tighter odor monitoring designed to identify and mitigate odors. A residents' committee was formed to identify the various odors potentially emitted and allowed to communicate to the Plant. Chemical tracer monitoring campaigns were carried out in conjunction with the residents' observations, in order to determine the odor-emitting sources. Chemical monitoring of the odor treatment units was implemented in order to optimize their operation. Finally, a system of electronic noses was implemented for continuous monitoring of the main nuisance odor sources. This article describes the means used by the Plant for odor monitoring and the electronic-nose validation results.

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Document Type: Research Article

Publication date: 2007-06-01

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