الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Microorganisms and algae growth on surface water are stimulated in the presence of effluentwastewater from edible oil industries. This leads to depletion of dissolved oxygen (DO) by
eutrophication process result in negative impact on aquatic environment. The new
regulations of environment agency and increasing market demand are forcing the industrialsectors to consider finding new solutions and sustainable techniques of the wastewater
treatment. In this study, polyamide (PA) - thin film composite (TFC) reverse osmosis (RO)membrane technology was used in edible oil-wastewater emulsion treatment. PA – TFC
membrane was characterized using mechanical, thermal, chemical and physical test
Surface morphology and cross section of TFC were characterized using SEM. The effects ofedible oil concentrations, average droplets size and contact angle on separation efficiencyand flux have been studied in detail. Purification performance was enhanced using activatedcarbon as a pre-treatment unit. The performance of the RO unit was assessed by CODremoval and permeate flux. Oil concentration in wastewater varied between 3000 mg/L to6000 mg/L. Oily wastewater showed higher contact angle (62.9o) than de-ionized water
(33o). Experimental results showed that the presence of activated carbon enhances the
permeation COD removal from 94 to 99 %. RO membrane technology coupled with
activated carbon unit of oily wastewater is a convenient technique for possible removal of
high concentration oil-wastewater up to 4.8 mg/l with removal efficiency 99%. Using
activated carbon as adsorption pre-treatment unit has improved the permeate flux 2 times
from 34 L/m2hr to 75L/m2hr.