微細気泡表面電位がRO海水淡水化技術に及ぼす影響の解明(マイクロ流体,一般講演)

概要

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The reverse osmosis (RO) method is a method obtaining the fresh water by using semi permeable RO membrane that does not percolate the low molecular weight material such as a salt. However, the RO method has to give continuous operation at high pressure in seawater desalination plants. In the present study, in order to improve the efficiency of RO desalination under low pressure conditions, the water treatment system is proposed by using microbubbles in salt water disposal. The effect of the microbubbles on the osmosis rate was also investigated by measurements of the electrical conductivity and rising velocity of microbubbles. The electrical conductivity of salt water decreases with increasing the zeta potential of the microbubbles. The shrinkage rate of microbubbles is affected by the electric potential of microbubbles. The shrinkage rate decreases with increasing the electrical potential of microbubbles.
日本流体力学会の論文
2010-09-09