Incorporation of Air Emissions in Dredging Method Selection
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 136, Issue 4
Abstract
Though environmental impacts of dredging have been studied, no efforts have been applied to the evaluation of air emissions from comparable types of dredging equipment, as in this study. This study provides a procedure to include air emissions resulting from the combustion of diesel fuel during dredging operations into the dredging equipment selection decision-making process. The proposed procedure includes a limited life cycle assessment and is demonstrated for typical dredging methods and data from the Illinois Waterway as performed by the United States Army Corps of Engineers, Rock Island District, Ill. It was found that commonly used rules of thumb in the dredging industry hold true by indicating that mechanical bucket dredges are better suited for long transport distances and have lower air emissions and cost per cubic meter for smaller quantities of dredged material. In addition, the results show that a cutterhead pipeline dredge would be preferable for moderate and large volumes of dredged material when no additional booster pumps are required. Finally, the results indicate that production rates can be a significant factor when evaluating the air emissions from comparable dredging equipment.
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Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 136 • Issue 4 • July 2010
Pages: 191 - 199
Copyright
© 2010 ASCE.
History
Received: Feb 28, 2009
Accepted: Oct 1, 2009
Published online: Feb 4, 2010
Published in print: Jul 2010
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