Use of sonication for in-well softening of semivolatile organic compounds. 1998 annual progress report

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'This project investigates the in-situ degradation of semivolatile organic compounds (SVOCs) and volatile organic compounds (VOCs) using in-well sonication, in-well vapor stripping, and biodegradation. The project has the primary objectives of developing this integrated system for efficient and economical removal and degradation of SVOCs and VOCs from groundwater. The project has as its goal the partial degradation (softening) of the more recalcitrant organic compounds in order to convert them into compounds that are more amenable to both air sparging and biological treatment. By performing the softening in-well, the treated organics can be reinjected and percolated through the subsurface, thereby enhancing ... continued below

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3 pages

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Peters, R. W.; Manning, J. F.; Hoffmann, M. R. & Gorelick, S. June 1998.

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Description

'This project investigates the in-situ degradation of semivolatile organic compounds (SVOCs) and volatile organic compounds (VOCs) using in-well sonication, in-well vapor stripping, and biodegradation. The project has the primary objectives of developing this integrated system for efficient and economical removal and degradation of SVOCs and VOCs from groundwater. The project has as its goal the partial degradation (softening) of the more recalcitrant organic compounds in order to convert them into compounds that are more amenable to both air sparging and biological treatment. By performing the softening in-well, the treated organics can be reinjected and percolated through the subsurface, thereby enhancing biodegradation by generating organics that are more easily biodegraded. This report summarizes work after nearly 2 years of a 3-year project. Argonne National Laboratory is developing a new technology that combines in-well sonication, in-well vapor stripping, and in-situ biodegradation for removal of SVOCs and VOCs from solution. Bench-scale batch experiments have been performed investigating the separate treatment systems involving stripping and sonication of halogenated organics in groundwater, along with the combined sonication/stripping system. Organic contaminants studied include: trichloroethylene (TCE), carbon tetrachloride (CCl4 ), tetrachloroethylene (PCE), trichloroethane (TCA), and ethylene dibromide (EDB). Initial organic concentrations range from {approximately}10 to {approximately}100 mg/L. Results of the sonication and vapor stripping experiments are available upon request.'

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3 pages

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  • Other: DE00013510
  • Report No.: EMSP-55374--98
  • Grant Number: NONE
  • DOI: 10.2172/13510 | External Link
  • Office of Scientific & Technical Information Report Number: 13510
  • Archival Resource Key: ark:/67531/metadc623478

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 20, 2017, 4:02 p.m.

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Peters, R. W.; Manning, J. F.; Hoffmann, M. R. & Gorelick, S. Use of sonication for in-well softening of semivolatile organic compounds. 1998 annual progress report, report, June 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc623478/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.