| Title |
Rejection properties of pesticides with nonofiltration |
| Authors |
정용준 ( Jeong Yong Jun ) ; 목증상추 ( Mog Jeung Sang Chu ) ; 민경석 ( Min Gyeong Seog ) |
| Keywords |
Pesticide; rejection property; batch cell; molecular width; hydrophobicity |
| Abstract |
5 kinds of pesticides removal with 4 flat sheet NF membranes was examined in a stirred type batch cell experiment and rejection properties were reviewed in the point of solute characteristics. Rejection of Aldicarb, Diazinon, MEP, NAC and Malathion, which are mainly included in the drinking water quality standard, with NTR-729HF having nominal NaCl rejection of 92% was revealed over 91.5%. Molecular weight and width regarded as solute characteristics were applied to explain the rejection property and showed the relevant trend in NTR-729HF and NTR-7250 having relatively higher nominal NaCl rejection. log P as hydrophobicity also played a role on the factor of pesticide rejection. Concerning to pesticide rejection with NF membranes, these three factors should be reviewed together, not independently. In considering the efficiency of pesticides rejection efficiency with different NF membrane, the appropriate NF membrane should be selected for real system. |