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Title

Using backwashed microfiltration as a pretreatment for ultrafiltration of oily wastewater

Year: 1390
COI: ICHEC07_162
Language: EnglishView: 496
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Authors

Sareh Rezaei Hosseinabadi - Research Centre for Membrane Separation processes, Faculty of Chemical Engineering,Iran University of Science and Technology, Narmak, Tehran, Iran
Mohammad Reza Sebzari - Research Centre for Membrane Separation processes, Faculty of Chemical Engineering,Iran University of Science and Technology, Narmak, Tehran, Iran
Mahmood Hemmati - Polymer Science and Technology Division, Research Institute of Petroleum Industry (RIPI),West Blvd., Near Azadi Sports Complex, Tehran, Iran
Toraj Mohammadi - Research Centre for Membrane Separation processes, Faculty of Chemical Engineering,Iran University of Science and Technology, Narmak, Tehran, Iran

Abstract:

Application of cross-flow microfiltration (MF) process as a pre-treatment step and, partly in combination, with cross-flow ultrafiltration (UF) system as final-treatment techniques for efficient treatment of oilfield waste water is issued here. It is concluded that by pre-treating the oily wastewater with a large pore MF membrane operated with backwashing, the oils are partially coalesced in the pores of the membrane. This suggests that membrane flux decline isdue to the coalescing of oil particles in the membrane pores. In this research, investigations were carried out for treatment of oily wastewater by usinghybrid system of MF/UF. A ceramic (α-Al2O3) MF membrane with area of 0.24 m2 in microfiltration process and a hollow fiber Polyvinylchloride (PVC) UF membrane with area of 0.7 m2 in ultrafiltration process were employed for treatment of a typical oily wastewatercomes from API effluent of Tehran refinery. The oily wastewater effluent was entered to the MF module and a long term operation was carried out at the optimum condition. The MFoutput was collected to be used as the UF feed. TSS, Oil and grease, TOC, COD and BOD removal efficiencies are gained in sequence 100%, 98.21%, 86.6%, 85.02%, and 83.9%. This effluent meets the National Discharge Standards.Based on the results, MF-UF hybrid system as a new method proposed can be replaced with theconventional wastewater treatment method

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Paper COI Code

This Paper COI Code is ICHEC07_162. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/340915/

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Rezaei Hosseinabadi, Sareh and Sebzari, Mohammad Reza and Hemmati, Mahmood and Mohammadi, Toraj,1390,Using backwashed microfiltration as a pretreatment for ultrafiltration of oily wastewater,07th International Congress on Chemical Engineering,Kish Island,https://civilica.com/doc/340915

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Type of center: دانشگاه دولتی
Paper count: 23,854
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