International Journal of Environmental Science and Development

Abstract—In water reservoirs and dams in Japan, the increment of sediments causes capacity reduction and water quality deterioration. In the present paper, the siphonic sediment removal system, invented by Sadatomi, is experimentally studied using different sized siphons and sands. From the present and our previous data for spherical particles, a new correlation of particle volume flow rate fraction is obtained. By incorporating the new correlation, the performance prediction model proposed in our previous study is revised. The revised model is validated by testing against the present data as well as previous data. Thus, the revised model is promising as a design tool of actual large scale systems.

Index Terms—Removal, sediments, siphon, water reservoirs.

M. Sadatomi and A. Kawahara are with the Dept. of Advanced Mechanical Systems, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan (e-mail: sadatomi@mech.kumamoto-u.ac.jp, akimaro@mech.kumamoto-u.ac.jp).
T. Nagano is with Mitsubishi Electric Co., Wakayama, Japan (e-mail: dir25122@yahoo.co.jp).

[PDF]

Cite:M. Sadatomi, T. Nagano, and A. Kawahara, "Siphonic Removal of Sediments in Water Reservoirs — Additional Experiment for Model Revision," International Journal of Environmental Science and Development vol. 6, no. 6, pp. 409-414, 2015.