| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
환경에너지_포스터 |
| 제목 |
A study on osmotically-driven separation process: preferable membrane configuration |
| 초록 |
Osmotically-driven separation processes, i.e. forward osmosis (FO) and pressure-retarded osmosis (PRO), are potentially applied for wastewater treatment, desalination and energy production. Osmotic pressure difference between two sides of a permeable membrane governs water transport through the membrane. However, the theoretical osmotic pressure is severely suppressed by effect of concentration polarization (CP). This study focused on CP effect on various membrane types in osmotically-driven separation processes. The experimental and modelling results showed that common belief on membrane configuration for FO and PRO (dense active layer facing feed solution (AL-FS) and draw solution (AL-DS), respectively) was limited by FS concentration. At certainly high concentration of FS, AL-DS yielded lower water flux, higher fouling propensity and more difficult cleaning than AL-FS. This study suggests AL-FS as preferable configuration for both FO and PRO in application to real natural water. |
| 저자 |
Thi Phuong Nga Nguyen, 전병문, 박형규, 이형개, 김우정, 권영남
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| 소속 |
Ulsan National Institute of Science and Technology |
| 키워드 |
membrane configuration; forward osmosis; pressure-retarded osmosis; concentration polarization
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| E-Mail |
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