28 شهریور 1400

محسن عباسی

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی نفت، گاز و پتروشیمی - گروه مهندسی شیمی
تحصیلات: دکترای تخصصی / مهندسی شیمی
تلفن: 07731221495
دانشکده: دانشکده مهندسی نفت، گاز و پتروشیمی

مشخصات پژوهش

عنوان Development of new tubular ceramic microfiltration membranes by employing activated carbon in the structure of membranes for treatment of oily wastewater
نوع پژوهش مقالات در نشریات
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مجله JOURNAL OF CLEANER PRODUCTION
شناسه DOI
پژوهشگران بهروز جعفری (نفر اول) ، محسن عباسی (نفر دوم) ، سیدعبداللطیف هاشمی فرد (نفر سوم)

چکیده

In this research, the application of activated carbon and natural zeolite as absorbents and hydrophilic agents in the structure of a low-cost and high performance tubular ceramic microfiltration membrane for oily wastewater treatment was investigated. In this respect, Mullite, Mullite-Zeolite, and Mullite-ZeoliteActivated Carbon membranes were fabricated and characterized as ceramic MF membranes by using kaolin clay, natural zeolite and activated carbon powder. Performance of these membranes were assessed by comparing the quantity of permeationflux (PF) and total organic carbon (TOC) rejection during oily wastewater treatment where harsh conditions such as high oil concentration in various concentration of saline feed (0e200 g/L) were considered. Fouling and cleaning experiments were performed on oily waste water using a laboratory scale cross-flow test unit when NaOH was selected as a cleaning agent. Experimental results showed that the presence of activated carbon and natural zeolite in the structure of the membrane can enhance the permeation flux and total organic carbon rejection. Also, the permeationflux was highly dependent on the salt content of the feed solution. Actually, theflux improved sharply with the increase of salt content from 0 to 50 g/L, and then reduced slightly with further increase in salt concentration. In addition, total organic carbon rejection of up to 99.99% for Mullite-Zeolite-Activated carbon membrane was observed. The results of cleaning membrane process illustrated that the NaOH agent was able to clean the fouled MF membrane effectively. The exponential triple smoothing model was also used to predict the permeationflux in long periods