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Comparison of methods for determining biodegradation kinetics of volatile organic compounds

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Abstract:

Regulations, such as the Synthetic Organic Manufacturing Industry Hazardous Organic National Emission Standards for Hazardous Air Pollutants (SOCMI-HON) rule of the recently promulgated Clean Air Act Amendments, target the reduction of emissions of volatile organic compounds (VOCs) from industrial sources including process vents, tanks, equipment leaks, and wastewater. As required by the regulation, Method 304 was used to measure the VOC biodegradation kinetics, which were then used to determine the degree of biodegradation versus air stripping. In addition to Method 304, batch tests that use oxygen addition (BOX tests) and serum bottle (SB) tests were use dto determine the biodegradation kinetics of ethylene oxide (EO) andacetaldehyde (AA) in a chemical plant. The Method 304 first-order rate constant was measured to be 0.99 L/g · h and 0.24 L/g · h for EO and AA, respectively. Linearized first-order rate constants from the BOX and SB tests were greater than the Method 304 rate constants by at least an order of magnitude. Also, the BOX tests and SB test kinetics correctly predicted full-scale bioreactor emissions, whereas the Method 304 kinetics did not.
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  • 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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