Olfactometric characterisation of sludge odours

Conventional olfactometric techniques have been used to evaluate odours from sewage treatment and sludge storage facilities primarily in terms of odour concentration relative to their detection thresholds. However, such data conveys limited information that would be useful for determining the causes...

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Bibliographic Details
Published in:Water science and technology 2000-01, Vol.41 (6), p.49-55
Main Authors: LAMBERT, S. D, BEAMAN, A. L, WINTER, P
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Detection
Exact sciences and technology
Fingerprints
Hedonic response
Odor
Odors
Odour
Pollution
Prevention and purification methods
Profiles
Sewage
Sewage treatment
Sewerage works: sewers, sewage treatment plants, outfalls
Sludge
Storage facilities
Transports and other
Wastewater treatment
Water treatment and pollution
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Summary:Conventional olfactometric techniques have been used to evaluate odours from sewage treatment and sludge storage facilities primarily in terms of odour concentration relative to their detection thresholds. However, such data conveys limited information that would be useful for determining the causes of most odours or the most appropriate remediation measures to be taken. Thispaper discusses some recent work undertaken to characterise the olfactometric profiles of different odours. Standard descriptive terms were used to characterise odours at normalised, moderately strong concentrations. These were used directly for the calculation of hedonic tone. They were also collated into a small number of generic odour groups and plotted to allow visual comparisons of different odour profile fingerprints. Such odour characterisations have proved to be very useful and may easily be incorporated into normal olfactometric evaluations.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2000.0092