Abstract
This study prepares different activated carbon (AC) polymer composite membranes and investigates their operation characteristics of filtration and backwashing. Experimental results show that the addition of AC particles and hydrophilic polyethylene glycol (PEG) in the polymer membranes can improve the pure water flux (PWF) and permeation flux (PF) during filtration, as well as increase the flux recovery rate (FRR) after backwashing. The optimum transmembrane flux, filtration pressure and time of AC composite membrane were 45Lm−2h−1, 196.8kPa and 60min; and the optimum backwashing pressure and time were 393.6kPa and 10min, respectively. Under such conditions, the flux recovery rate of the AC composite membranes achieved 87.5%.
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