International Journal of Environmental Science and Development

Abstract—Rapid sedimentation in water reservoirs in arid area is driving the sustainability of surface water resource into a corner. Dredging is one of expected and effective countermeasures to the sedimentation, but such maintenance works tend to be refused in the developing countries that gives a priority to economic growth. The authors proposed using the sediment as the raw materials for soil amendment, anti-allergy functional food and construction bricks, in order to cover the cost of dredging the sediment in reservoirs. The profits taken from these products were discussed for covering the dredging cost. However, neither uses satisfy the conditions of financial coverage for dredging. Some are not feasible, another cannot consume all the sediment yield in the country. In order to practice the exploitation of the sediment, a use for other purposes, especially for higher value-added products, should be proposed.
In this study, the production of the porous ceramics usable for water purification filter is discussed. The porous ceramics were prepared by gelcasting method. Detergent and synthetic resin is mixed with slurry. After foaming the detergent, the slurry is solidified rapidly by the resin to keep the matrix structure. This method has already been applied to pure materials such as alumina with low curing shrinkage rate in precedence studies. In this study, the sediment had higher shrinkage rate that causes cracking in drying process, so that more amount of resin was added. The mixing ratio of water, sediment and detergent, and mixing time were changed for the discussion about the variation of characteristics of the porous ceramics.
Porosity and permeability could be increased by the higher water contents and longer mixing time while the strength was reduced at these conditions.

Index Terms—Reservoir, sediment, exploitation, porpus ceramics.

M. Irie is with University of Miyazaki, Gakuen Kibanadai Nishi, Miyazaki, Japan (e-mail: irie.mitsuteru.p2@cc.miyazaki-u.ac.jp).
S. Taga is with TEC International Co., Ltd.
J. Tarhouni is with National Institute of Agronomy Tunis, Tunis.
M. Fuji is with Nagoya Institute of Technology, Japan.

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Cite: Mitsuteru Irie, Sena Taga, Jamila Tarhouni, and Masayoshi Fuji, "Trial Production of Porous Ceramics Filter Made from Sediments in Water Reservoirs for Sustainable Use of Surface Water Resource in Arid Land," International Journal of Environmental Science and Development vol. 8, no. 8, pp. 549-556, 2017.