ISSN 1451 - 9372(Print) ISSN 2217 - 7434(Online) JULY-SEPTEMBER 2017 Vol.23, Number 4, 441-596 www.ache.org.rs/ciceq Journal of the Association of Chemical Engineers of Serbia, Belgrade, Serbia EDITOR-In-Chief Vlada B. Veljković Faculty of Technology, University of Niš, Leskovac, Serbia E-mail: [email protected] ASSOCIATE EDITORS Jonjaua Ranogajec Srđan Pejanović Milan Jakšić Faculty of Technology, University of Department of Chemical Engineering, ICEHT/FORTH, University of Patras, Novi Sad, Novi Sad, Serbia Faculty of Technology and Metallurgy, Patras, Greece University of Belgrade, Belgrade, Serbia EDITORIAL BOARD (Serbia) Đorđe Janaćković, Sanja Podunavac-Kuzmanović, Viktor Nedović, Sandra Konstantinović, Ivanka Popović Siniša Dodić, Zoran Todorović, Olivera Stamenković, Marija Tasić, Jelena Avramović ADVISORY BOARD (International) Dragomir Bukur Ljubisa Radovic Texas A&M University, Pen State University, College Station, TX, USA PA, USA Milorad Dudukovic Peter Raspor Washington University, University of Ljubljana, St. Luis, MO, USA Ljubljana, Slovenia Jiri Hanika Constantinos Vayenas Institute of Chemical Process Fundamentals, Academy of Sciences University of Patras, of the Czech Republic, Prague, Czech Republic Patras, Greece Maria Jose Cocero Xenophon Verykios University of Valladolid, University of Patras, Valladolid, Spain Patras, Greece Tajalli Keshavarz Ronnie Willaert University of Westminster, Vrije Universiteit, London, UK Brussel, Belgium Zeljko Knez Gordana Vunjak Novakovic University of Maribor, Columbia University, Maribor, Slovenia New York, USA Igor Lacik Dimitrios P. Tassios Polymer Intitute of the Slovak Academy of Sciences, National Technical University of Athens, Bratislava, Slovakia Athens, Greece Denis Poncelet Hui Liu ENITIAA, Nantes, France China University of Geosciences, Wuhan, China FORMER EDITOR (2005-2007) Professor Dejan Skala University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, Serbia Journal of the Association of Chemical Engineers of Serbia, Belgrade, Serbia Vol. 23 Belgrade, October-December 2017 No. 4 Chemical Industry & Chemical Engineering CONTENTS Quarterly (ISSN 1451-9372) is published quarterly by the Association of Chemical Majid Aliabadi, Effect of electrospinning parameters on the Engineers of Serbia, Kneza Miloša 9/I, 11000 Belgrade, Serbia air filtration performance using electrospun polyamide-6 nanofibers ........................................................................... 441 Editor: Rahim Shojaat, Afzal Karimi, Naghi Saadatjoo, Soheil Aber, Vlada B. Veljković Dye removal from artificial wastewater using hetero- [email protected] geneous bio-Fenton system ............................................... 447 Editorial Office: Ana Belščak-Cvitanović, Viktor Nedović, Ana Salević, Saša Kneza Miloša 9/I, 11000 Belgrade, Serbia Despotović, Draženka Komes, Miomir Nikšić, Branko Phone/Fax: +381 (0)11 3240 018 Bugarski, Ida Leskošek Ćukalović, Modification of E-mail: [email protected] functional quality of beer by using microencapsulated www.ache.org.rs green tea (Camellia sinensis L.) and Ganoderma mushroom (Ganoderma lucidum L.) bioactive For publisher: compounds ......................................................................... 457 Tatijana Duduković Danica Savanović, Radoslav Grujić, Sladjana Rakita, Alek- Secretary of the Editorial Office: sandra Torbica, Ranko Bozičković, Melting and crys- Slavica Desnica tallization DSC profiles of different types of meat .............. 473 Ali Sakin, Irfan Karagoz, Numerical prediction of short-cut Marketing and advertising: flows in gas-solid reverse flow cyclone separators ............ 483 AChE Marketing Office Kneza Miloša 9/I, 11000 Belgrade, Serbia Larissa Nayhara Soares Santana Falleiros, Bruna Vieira Phone/Fax: +381 (0)11 3240 018 Cabral, Janaína Fischer, Carla Zanella Guidini, Vic- elma Luiz Cardoso, Miriam Maria de Resende, Eloízio Publication of this Journal is supported by the Júlio Ribeiro, Improvement of recovered activity and Ministry of Education, Science and β Technological Development of the Republic of stability of the Aspergillus oryzae -galactosidase Serbia immobilized on duolite A568 by combination of immo- bilization methods ............................................................... 495 Subscription and advertisements make payable Dung Van Nguyen, Harifara Rabemanolontsoa, Shiro Saka, to the account of the Association of Chemical Fed-batch fermentation of nipa sap to acetic acid by Engineers of Serbia, Belgrade, No. 205-2172- Moorella thermoacetica (f. Clostridium thermoace- 71, Komercijalna banka a.d., Beograd ticum) .................................................................................. 507 Computer typeface and paging: Soraya Seankham, Senad Novalin, Suwattana Pruksasri, Vladimir Panić Kinetics and adsorption isotherm of lactic acid from fermentation broth onto activated charcoal ........................ 515 Printed by: Faculty of Technology and Metallurgy, Wang Ran, Tao Jinliang, Ling Yanli, Wei Feng, Liu Jidong, Research and Development Centre of Printing Total spray tray (TST) for distillation columns: A new Technology, Karnegijeva 4, P.O. Box 3503, generation tray with lower pressure drop ............................. 523 11120 Belgrade, Serbia Yanjun Guan, Xiuying Yao, Guiying Wu, Kai Zhang, CFD investigation of slugging behavior in a gas-solids Abstracting/Indexing: fluidized bed ....................................................................... 529 Articles published in this Journal are indexed in Thompson Reuters products: Science Citation Snezana Sevic, Branko Grubac, Simulation of temperature- Index - ExpandedTM - access via Web of –pressure profiles and wax deposition in gas-lift wells ....... 537 ® SM Science , part of ISI Web of Knowledge Ainhoa Rubio-Clemente, Edwin Chica, Gustavo A. Peñuela, Kinetic model describing the UV/H2O2 photodeg- radation of phenol from water ............................................. 547 CONTENTS Continued Nina Trupej, Maša Knez Hrnčič, Mojca Škerget, Željko Knez, Investigation of the thermodynamic properties of the binary system vitamin K3/carbon dioxide ............................ 563 Sema Akyalcin, Kinetic study of the hydration of propylene oxide in the presence of heterogeneous catalyst ............... 573 Ilayda Acaroglu Degitz, Muge Sari Yilmaz, Sabriye Piskin, Recycle of gold mine tailings slurry into MCM-41 mesoporous silica with high specific surface area ............. 581 Contents: Vol. 23, Issues 1–4, 2017 .............................................. 589 Author Index, Vol. 23, 2017 .......................................................... 593 Activities of the Association of Chemical Engineers of Serbia are supported by: - Ministry of Education, Science and Technological Development, Republic of Serbia - Hemofarm Koncern AD, Vršac, Serbia - Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia - Faculty of Technology, University of Novi Sad, Novi Sad, Serbia - Faculty of Technology, University of Niš, Leskovac, Serbia - Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia Available on line at Association of the Chemical Engineers of Serbia AChE Chemical Industry & Chemical Engineering Quarterly www.ache.org.rs/CICEQ Chem. Ind. Chem. Eng. Q. 23 (4) 441−446 (2017) CI&CEQ MAJID ALIABADI EFFECT OF ELECTROSPINNING Chemical Engineering Department, PARAMETERS ON THE AIR FILTRATION Birjand Branch, Islamic Azad PERFORMANCE USING ELECTROSPUN University, Birjand, Iran POLYAMIDE-6 NANOFIBERS SCIENTIFIC PAPER Article Highlights UDC 66.074.9:546.217:678.675 • Nanofibers of polyamide (PA) were fabricated via electrospinning process • The average fiber diameter of PA nanofibers was found to be 220 nm • The solution concentration showed major influence on the performance of PA nano- fibrous filters • The highest aerosol filtration efficiency was found to be 96% at optimum conditions Abstract Due to their high filtration efficiency and low basis weight nanofibrous filters are suitable for filtration applications. The objective of this study was to investigate the effect of electrospinning parameters including polymer solution concentration (10-15 wt.%), applied voltage (15-25 kV) and tip-collector distance (7.5-12.5 cm) on the filtration efficiency of polyamide (PA) nanofibers. The morphology of the PA nanofibers was characterized using scanning electron microscope (SEM) analysis. The SEM image results indicated that the average fiber diameter of PA nanofibers was 220 nm at PA solution concentration of 12.5 wt.%, applied voltage of 20 kV, tip-collector distance of 10 cm, flow rate of 0.5 mL h-1, tem- perature of 25 °C and humidity of 40%. The obtained results showed that the highest quality factor and efficiency of 7.02×10-2 Pa-1 and 96% were optimal parameters for nanofibrous filters during 30 and 240 min of electrospinning time, respectively. The presented study showed that the morphology optimization of nanofibers is an effective method for improvement of filtration performance. Keywords: electrospinning, polyamide, nanofibers, parameter study, air filtration. The removal of air pollution due to the increasing basis weight are used in the air purification processes industrial air emissions and automobile exhaust is a [3-6]. The electrospun nanofibers due to their unique very important factor of preserving human health and properties such as high specific surface area and high environmental protection [1]. The fine particles less porosity with fine pores