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Performance of different pretreatment systems with ultrafiltration (UF) prior to reverse osmosis (RO) for desalting seawater was assessed in this paper. The pilot trial was operated on seawater from Bohai Bay in Tianjin using polyvinylidene fluoride (PVDF) hollow fiber UF membrane. During these experiments, membrane specific flux (SF) was calculated to evaluate the performance of UF. Results of the...
The fouling mechanisms of traditional Chinese medicine (TCM) extract produced by ultrafiltration (UF) have been investigated. A laboratory scale crossflow membrane filtration unit was used to conduct the experimental study. The rejection of the four types of macromolecules present in TCM extract is more than 80% and the transmittances of the active ingredients are more than 70%. Two models were applied...
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