| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2196 |
| 발표분야 |
이동현상 |
| 제목 |
Analysis of water transport in Pressure Retarded Osmosis Membranes |
| 초록 |
Pressure retarded osmosis (PRO), that is the one of osmosis technologies, is able to produce renewable energy by utilizing the differences of concentration between a low salinity feed solution and a high salinity draw solution. In the PRO, water transport across the membrane is considered by the two terms. First is the external concentration polarization, that becomes significant for high-performance membranes, limiting transport phenomena. Second is the internal concentration polarization, effecting on reducing the osmotic pressure. The commercialized membranes used on this study are made of a selective polyamide layer on top of a polysulfone support layer. The high porous support layer decreases internal concentration polarization, resulting that the transport properties of the active layer can be improved. We examined the influence of the support layer structure in thin-film composite membrane on the water transport in the PRO. |
| 저자 |
홍성수1, 황동근1, 류원선1, 전명석2, 정귀영1
|
| 소속 |
1홍익대, 2한국과학기술(연) |
| 키워드 |
Pressure Retarde Osmosis; Water flux; Concentration polarization; Support layer; Porosity
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
