| Title |
NaCl Separation and Concentration Characteristics using Reverse Osmosis Plate and Frame Modules |
| Abstract |
Total volume flux and reject coefficient with the variation of pressure and feed concentration were compared and determined using reverse osmosis plate and frame single-stage and multi-stage. Reverse osmosis process for NaCl separation was highly effective from the result of 96-98% rejection coefficient of low concentration and 93-96% of high concentration with single-stage, 95-96% rejection coefficient of low concentration and 87-95% of high concentration with multi-stage at 20㎏_f/c㎡ applied pressure and 25℃ temperature. The experimental results followed Pusch`s linear model which predicts the linear relationship between inverse of rejection coefficient and inverse of total volume flux. Degree of concentration was increased with the decrease of feed concentration and the increase of applied pressure at 25℃ temperature. |