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Your Environment. Your Health.

Progress Reports: Missouri University of Science and Technology: In-situ Sediment Remediation Using Benthic Waterjet Amendment

Superfund Research Program

In-situ Sediment Remediation Using Benthic Waterjet Amendment

Project Leader: Joel G. Burken
Grant Number: R01ES016158
Funding Period: 2008-2011

Progress Reports

Year:   2010  2009 

In the progress of the “In-Situ Sediment Remediation Using Benthic Waterjet Amendment Placement” project, one portion of the project has been completed and a new jetting nozzle was designed and fabricated, resulting in a MS thesis and pending publication. To accomplish the testing, modifications to an oncampus laboratory have been completed to support the waterjet experiments. The equipment in the Subsurface Hydrology Laboratory were modified for the constructed waterjet equipment, , and a new electrical service was installed with sufficient capacity to power the waterjet pump. Equipment was designed and constructed necessary for amendment delivery which was initially investigated. This portion of the work consisted of researching nozzle design (type, diameters, etc) and determining if the pressures initially considered were in fact adequate to deliver the desired amendment in a volume adequate to produces the desired effect. Design, prototyping and manufacturing of a new jet design was completed. The capabilities and experience of the team allowed for completion of several concurrent experiments to serve as “rangefinding” for the best and most effective method for delivery of the amendments such as developing electrosmosis system for sediment drying and analysis. They have also developed sediment amendment quantification methodology for both carbon and iron amendments. A design for new reactor system for three-dimensional experimentation was completed, and work has also progressed on the biota impacts. A surrogate benthic organism study was completed, revealing that bivalves can withstand the jetting procedures that deliver the amendments.. Overall the project is progressing according to plans with success, with the exception that the initial start date was ½ a year behind the proposed schedule, and that the graduate research assistants came on board four months later.

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