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:: paper18 ::

Desalination 265 (2011) 222

Ceramic membrane performance in micro filtration of oily wastewater

Sareh Rezaei Hosein Abadi, Toraj Mohammadi 

a b s t r a c t

A large amount of oily wastewaters is generated by industrial sources. Oil-in-water emulsions are the most

serious pollutants for which current treatment technologies are often costly and ineffective. In recent years,

membrane processes have been applied for oily wastewater treatment. Micro

used in oil-in-water separations. In this research, investigations were carried out for treatment of an oily

wastewater. A tubular ceramic MF (

comes fromAPI ef

4 mg/L thatmeets the National Discharge Standard and exhibited TOC removal ef

effects of operating parameters such as transmembrane (TMP), cross

permeate

operating conditions areTMP of 1.25 bar, CFV of 2.25 m/s and temperature of 32.5 °C. In this system, backwashing

was used to remove oil droplets and particulates that block the membrane pores, and the results showed that

backwashing could prevent permeate

be replaced with the conventional wastewater treatment method.

filtration (MF) was successfullyα-Al2O3) system was employed for treatment of a typical oily wastewaterfluent of Tehran refinery. This systemcould produce a permeate with oil and grease content officiency higher than 95%. Also,flow velocity (CFV) and temperature onflux, TOC removal efficiency and fouling resistance (FR) were investigated. The recommendedflux decline significantly. Based on the results, this systemwas proposed to
a, Mohammad Reza Sebzari a, Mahmood Hemati b Fatemeh Rekabdar b
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