Continuous Monitoring of Odourous Compounds in Waste Water Treatment Plants – Sensory approach or Physico-chemical solution?

Continuous Monitoring of Odourous Compounds in Waste Water Treatment Plants – Sensory approach or Physico-chemical solution?

Dynamic olfactometry relies on human nose evaluation. Samples are collected at the source and sent to a certified laboratory working according to standard methodology (EN 13725, ASTM 679-E04, VDI 390). Samples are automatically diluted and smelt by a sensory panelist with dedicated equipment; a dynamic olfactometer. This approach is not easy as the time between sampling and measurement must be reduced to avoid reactions and adsorption of unstable molecules in the gas mixture (i.e.: sulphur compounds). This method offers a spot measurement which does not take into account process or meteorological variations because results are available only after a few days… Get the article to read more.

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