| Title |
Rejection Properties of Aromatic Pesticides by a Hollow Fiber NF Membrane |
| Authors |
정용준 ( Yong Jun Jung ) ; 목회상추 ( Yoshiaki Kiso ) ; 박순길 ( Soon Gil Park ) ; 김종용 ( Jong Yong Kim ) ; 민경석 ( Kyung Sok Min ) |
| Keywords |
Aromatic pesticides; Rejection property; Hollow fiber NF; Molecular weight; Log B |
| Abstract |
The rejection properties of 6 aromatic pesticides were evaluated by a continuous flow system equipped with a hollow fiber NF membrane. Different from the separation experiment of batch cell, the rejection and the removal could be calculated exactly because the concentration of feed, permeate and retentate was separately obtained. The lowest and the highest rejection were found in carbaryl(54.8%) and methoxychlor(99.2%), respectively, and the removals were always shown higher than rejections. This may be caused by some reasons such as the solute adsorption on the membrane, the variation of feed concentration. Although molecular weight, molecular width regarded as solute characteristics and log P(n-octanol/water partition coefficient) as hydrophobicity could be applied to explain the rejection property, these factors should be considered together for better analysis. According to the higher relationship between log B(solute permeability) and molecular weight, it was revealed that the solute separation with this membrane was influenced more by molecular weight. |