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Effect of Micro-Bubbling on Settling Behavior of Fine Particles for Deep-Sea Mining

[+] Author Affiliations
Tetsuo Yamazaki, Naoki Nakatani, Rei Arai, Yuta Yamamoto

Osaka Prefecture University, Sakai, Japan

Paper No. OMAE2015-41356, pp. V006T05A009; 4 pages
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 6: Ocean Space Utilization
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5654-3
  • Copyright © 2015 by ASME


A preliminary tank experiment for clarifying the effect of micro-bubbles on settling behavior of fine particles was conducted. The behavior of the particles was continuously photographed by a still camera and the images were analyzed by the gray scale intensity. From the results the authors found a suspension effect of micro-bubbles for the settling of fine particles. The effect should be studied in detail for preventing some serious environmental impacts during deep-sea mining.

Copyright © 2015 by ASME



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