Ultrafiltration Behavior of Organic Mixtures Simulating Sweetwater Solutions
Indok Nurul Hasyimah Mohd Amin, Abdul Wahab Mohammad
Abstract
In the present study, attempts were made to examine the filtration behavior of organic mixtures (oleic acid-triglycerides) compared to single organic solute (triglycerides) contained in synthetic glycerol-water solutions (known as sweetwater). Furthermore, the rejections of individual solutes were studied. The TG-FA mixtures permeated preferentially when compared with single TG which is mainly due to the solubility as well as diffusivity of small fatty acid in the TG-FA mixtures. Furthermore, PVDF membrane provided higher fluxes and experienced less fouling than PES membrane for both cases. In case of the PVDF membrane the rejection of fatty acid was 6.20% while oil rejection in glycerol-water plus TG and TG-FA mixtures was 82.42% and 84.67%, respectively. However, the PES membrane underwent higher fatty acid rejection (20.93%) as well as oil rejection in single TG (94.70%) and TG-FA mixtures (91.08%). It is noteworthy that the nature of the membrane, membrane MWCO, and the feed characteristics had a significant effect on the fouling potential and filtration performance.
Keywords: adhesion; diffusion; fouling,trigyceride; ultrafilteration; wettability
Citation:
Indok Nurul Hasyimah Mohd Amin., & Abdul Wahab Mohammad (2013). Ultrafiltration Behavior of Organic Mixtures Simulating Sweetwater Solutions. Separation Science and Technology, 48(11), 1636–1647. doi:10.1080/01496395.2012.755701
