"The use of amendments to perform in situ remediation of contaminated sediments is a technique that is relatively mature. The need exists to develop a method of amendment delivery that will efficiently place the amendments into the contaminated zone at depth with minimal impacts to the benthic communities and contaminant resuspension. Waterjets have been used for hundreds of years as an excavation, cutting, and cleaning tool, but they can also be used to inject remediation amendments into contaminated sediments if setup properly. In order to test this concept, a waterjet amendment injection system and nozzle have been developed and tested. The system functionality was tested by the characterization of the concentration distributions of the injected amendments into a surrogate sediment. The powdered activated carbon characterization was performed through the use of a novel spectroradiometry technique developed in this work, while granular iron characterization was done using visual comparison and a digestion/Inductive Coupled Plasma mass spectrometry analysis. The distribution patterns exhibited by both of the injected amendments were very similar, while the injection depths varied between the two types of amendment. Analysis of these patterns and depths provides insight as to what occurs during an injection and can lead to the more efficient placement of these waterjet injected remediation amendments"--Abstract, page iv.
Burken, Joel G. (Joel Gerard)
Elmore, A. Curt
Civil, Architectural and Environmental Engineering
M.S. in Environmental Engineering
National Institute of Environmental Health Sciences
Missouri University of Science and Technology
x, 76 pages, 66 plates
© 2010 Gavin H. R. Risley, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
In situ remediation
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Risley, Gavin Hunter Ray, "The placement of remediation amendments into contaminated sediments via waterjet technologies" (2010). Masters Theses. 4999.