TFC POLYAMIDE BASED HF-C FO MEMBRANES FOR THE REMOVALS AND RECOVERY OF SOME PAHS FROM A PETROCHEMICAI INDUSTRY WASTEWATERS
In this study the PAHs namely toluene, phenanthrene and chyrsene were effectively removed and recovered form a TFC polyamide FO reactor containing HF-C unit. The effect of feed flow rate on FO membrane reactor flux, effects of themperature and TMP on FO reactor Jw and Js/Jw, variation of zeta potantial versus pH were investigated. The optimized conditions for the maximum removals and recoveries of PAHs were as flows: E Jw and specific reverse solute (wastewater) flux (Js/Jw) ) of 150 L/m2.h and to 0.78 g/l at a draw flow rate of 67 L/h and a TMP of 28 bar at a temperature of 30°C. It was found that in FO reactor with a HF-C modüle traeating petrochemical industry wastewater the zeta potential was dependent to pH of wastewater. Total removals of PAH varied between 90% and 95% while the recoveries were 26 mg/l, 20 mg/l and 18 mg/l for toleune, phenanthrene and chrysene based on their initial concentrations of 5 mg/l.
DELIA TERESA SPONZA