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Stripping of volatile organic compounds at full-scale municipal wastewater treatment plants

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A field investigation was carried out at four Ontario municipal wastewater treatment plants to characterize stripping of volatile organic compounds (VOCs) from aerated process vessels. Concentrations of VOCs in the off-gas and wastewater at aerated grit chambers and aeration basins were measured. Thirty-two of 36 target VOCs were observed in at least one off-gas sample from the plants studied. The total emissions for the measured compounds ranged from 2700 to 3900 g/ d or 36 to 50 g/1000 m3 of wastewater treated. Chlorinated VOCs tended to be stripped to a greater extent than nonchlorinated compounds. The data suggest that VOC stripping can be reduced by reducing aeration rates, and that operating and design parameters have an impact on the loss of VOCs.
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Keywords: off-gas; stripping; volatile organic compounds; waste water

Document Type: Research Article

Publication date: 1993-09-01

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  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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