Skip Navigation Minerals Management Service Minerals Management Service MMS Home pagesSearchMMS Topic IndexAbout MMSWhat’s NewOffshore Energy and Minerals Management United States Department of the Interior
TA&R Home PageTA&R International Home PagesTA&R Oil Spill Research HomeTA&R Research Projects HomeTA&R Workshops HomeTA&R Safety Home
Project Number 86
Date of Summary September 30, 1985
Subject ATOS (Antiturbidity Overflow System) Experiment
Performing Activity Shin Nihon Kisho Kaiyou Co.
Principal Investigator Dr. Michael Cruickshank, U.S. Geological & Survey
Contracting Agency U.S. Department of State, Tokyo Embassy
Estimated Completion Complete
Description This was a joint experiment between the Minerals Management Service and the National Research Institute for Pollution and Resources, Ministry of International Trade and Industry, Japan. The project was performed with the support of the Marine Mining Panel of the U.S./Japan Cooperative Program in Natural Resources (UJNR). The subject experiment is the evaluation of a Japanese patented technique for controlling and reducing surface turbidity and sediment dispersion associated with hopper dredge mining operations. The technique ATOS (Antiturbidity Overflow System) prevents air from being entrained in water which is overboarded after the dredged sand and silt are brought to the surface. The modified dredge is owned by the Japanese Government.
Progress Complete. Results of the experiments indicate that, although the patented technique does not reduce the suspended sediment, it speeds the resettlement of suspended materials.
Reports
AA (110 pages) File in Adobe's Portable Document Format (PDF) . Data Report from an Experiment to Measure the Dispersion of a Hopper Dredge Discharge Plume at Kanmon Channel, Japan, Marine Mining Panel, The United States/Japan Cooperative Program in Natural Resources, 1984.
 

Privacy | Disclaimers | Accessibility | Topic Index | FOIA

Last Updated: 07/22/2008, 06:29 PM