Journal
DESALINATION AND WATER TREATMENT
Volume 52, Issue 40-42, Pages 7543-7551Publisher
DESALINATION PUBL
DOI: 10.1080/19443994.2013.831795
Keywords
Rejection; Bisphenol A; Membrane; Reverse osmosis
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In this study, bisphenol A (BPA) was removed from aqueous solutions using a low- pressure reverse osmosis system. The influence of various parameters such as feed pressure (136-544 kPa), feed flow rate (0.25-1.172 L/min), feed concentration (30-100 mg/L), and pH (8, 10, and 11) on BPA rejection was investigated. The results showed a maximum rejection of 87.34% for a 50 mg/L feed concentration at 408.1 kPa, pH 8, and 1.172 L/min feed flow rate. The effect of feed pressure on BPA rejection, showed a critical pressure at which the maximum rejection was observed. This critical pressure was measured to be in the range of 408-476 kPa. The most effective parameter on the BPA rejection was feed flow rate which showed a severe concentration polarization at the surface of the membrane. The effect of feed pH revealed a minimum rejection at pH 10.
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