逆浸透膜の熱処理温度と現象論的係数

概要

論文の詳細を見る
In order to study phenomenologically the behavior of permeation through cellulose acetate membrane under reverse osmotic process, experiments were carried out with extensive range of heat treatment temperature and solution concentration. The following results were obtained. (1) For high temperature treated membrane, reflection coefficient σ and solute permeability p are not affected by concentration. But for low temperature treated membrane σ has dependence of concentration in NaCl solution but not in Na2SO4 solution. (2) Phenomenological coefficient -LPD is the product of a limit separation degree σ and flux coefficient LP and it can be considered as separation efficiency. It has maximum value for heat treatment temperature. Osmotic flow can be estimated directly from the LPD which depends on con entration for NaCl solution but not for Na2SO4 solution. (3) Phenomenological coefficient LD behaves same as solute permeability p for heat treatment temperature but it varies with concentration for lower temperature treated membrane and lower concentration.
日本膜学会の論文