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Environmental Engineering Research 2009;14(2): 126-133. DOI: https://doi.org/10.4491/eer.2009.14.2.126
Development of Transport Parameters affecting on the Removal of Micro Organic Compounds such as Disinfection By-Products and Pharmaceutically Active Compounds by Low-Pressure Nanofiltration
Jeongik Oh1, and Kazuo Yamamoto2
1Housing & Urban Research Institute, Korea National Housing Corporation, Gyeonggi 436-704, Korea
2Environmental Science Research Center, University of Tokyo, Tokyo, Japan
Corresponding Author: Jeongik Oh ,Tel: +82-31-738-4689, Fax: +82-31-738-4700, Email: ojijp@jugong.co.kr
Received: January 9, 2009;  Accepted: June 2, 2009.
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ABSTRACT
This study investigated the removal characteristics of various micro organic compounds by low-pressure nanofiltration membranes comprised of disinfection by products and pharmaceutically active compounds. The experimental removal of micro organic compounds by low-pressure nanofiltration membranes was compared with the transport model calculations, which consist of diffusion and convection terms including steric hindrance factor. The selected molecule from the disinfection byproducts and pharmaceutical active compounds showed a much lower removal than polysaccharides with a similar molecular size. However, the difference between model calculation and experimental removal of disinfection by-products and pharmaceutically active compounds could be corrected. The correlation of Ks with solute radius was further considered to clarify transport phenomena of micro organic solutes through nanofiltration membranes.
Keywords: Nanofiltration | Steric hindrance | Disinfection byproducts | Pharmaceutical active compounds
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