Swirl Technology: Enhancement of Design, Evaluation, and Application
Publication: Journal of Environmental Engineering
Volume 122, Issue 8
Abstract
While different forms of swirl and vortex technologies have been developed during the last thirty years, their major function has been the dual purpose of flow regulation and settleable-solids concentration for combined sewer overflows. A variety of opinions have developed regarding the application of these technologies, which vary from overwhelming support to reservations of their effectiveness. Performance of swirl/vortex devices depends on the settling characteristics of the suspended solids and the fraction of dissolved solids in the storm flow. When correctly installed with other controls of the combined-sewerage or separately sewered storm-water system, swirl/vortex devices can play an important role in combined sewer overflow and storm-water discharge pollution control. Reliable determination of performance depends principally upon accurate sampling techniques, suspended solids and other pollutant analyses, and settling-velocity distribution of the influent and effluent. Simultaneous flow-rate measurement synchronized to sampling times is also necessary. This paper discusses design, evaluation, and application practice enhancements for the use of swirl/vortex technologies as part of a combined sewer overflow and storm-water pollution control system.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 122 • Issue 8 • August 1996
Pages: 741 - 748
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Aug 1, 1996
Published in print: Aug 1996
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