FIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Membrane Fouling Prevention and Control Strategies in Pulp and Paper Industry Applications: A Review1811973119710.22079/jmsr.2018.83337.1185ENAlnour BokharyDepartment of Chemical Engineering, Lakehead University, CanadaAdrianna TikkaDepartment of Chemical Engineering, Lakehead University, Thunder Bay, ON, Canada P7B 5E1Mathew LeitchFaculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, On, Canada P7B 5E1Baoqiang LiaoDepartment of chemical engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON, Canada P7B 5E1Journal Article20180317<span class="fontstyle0">Membrane separation technologies have recently received much attention, from lab-scale studies to full-scale operations, in the forest industry. However, membrane fouling comprises a signifcant obstacle to their broad application. Thus, to ensure cost-effective operation of membrane separation processes, the improved elucidation of membrane fouling and establishment of effective fouling control strategies are critical. Membrane fouling decreases process performance efciency, thereby increasing operational and maintenance costs. Although much research has been conducted in this feld, a review has not yet been undertaken to address membrane fouling in pulp and paper mill applications. Further, membrane fouling is still not fully understood. In this review, a survey of the present state of fouling management strategies in the pulp and paper industry (PPI) is presented alongside the latest advances and innovative methods in fouling management. This article also discusses the key parameters that affect membrane fouling, fouling characterization techniques, as well as fouling mechanisms and strategies that are employed for fouling control. In addition, future research opportunities related to membrane fouling control strategies in both low-pressure membranes and MBRs are proposed.</span>https://www.msrjournal.com/article_31197_6001dc87240adc7fff53daf769f36f31.pdfFIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Theoretical Performance Evaluation of Inorganic (Non Pd-Based) Membranes for Hydrogen Separation1982033007810.22079/jmsr.2018.74280.1160ENKamran GhasemzadehFaculty of Chemical Enginering, Urmia University of Technology, Urmia, IranAbbas Aghaeinejad-MeybodiDpt. of Chemical Engineering, Urmia University of Technology, Urmia, IranAdolfo IulianelliInstitute on Membrane Technology of the Italian National Research Council (CNR-ITM)
ItalyAngelo BasileResearch Institute on Membrane Technology of the National Research CouncilJournal Article20171026<span class="fontstyle0">The aim of this work theoretical study is to theoretically investigate a inorganic membrane assisted purifcation process of an H</span><span class="fontstyle0" style="font-size: 4pt;">2</span><span class="fontstyle0">-rich stream derived from a conventional methanol steam reforming stage. In particular, a black-box model for multicomponent gas mixture purifcation is developed to evaluate the H</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">separation performance of such non-palladium based membranes such as silica, polymeric and carbon membranes, by varying design and processing variables such as stage cut and feed pressure. The most signifcant modeling result is achieved by using a silica membrane based separation module in which 98% of H</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">purity and 0.3% of carbon monoxide in the permeate side are reached, operating with a transmembrane pressure of 4.0 bar.</span>https://www.msrjournal.com/article_30078_41a92a8b441ad5447c19b5f8d9f58056.pdfFIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Preparation and Characterization of Modifed PEEK-WC: DEHPA Microspheres for Rhodamine B Adsorption. Kinetics Studies2042113068510.22079/jmsr.2018.76902.1164ENBEY SaidLaboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, université de Bejaia, Algérie.0000-0002-9263-5104OUAZINE LouanasLaboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, université de Bejaia, Algérie.BELAID TaousLaboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, université de Bejaia, Algérie.Alessandra CriscuoliInstitute on Membrane Technology, ITM-CNR, c/o University of CalabriaBENAMOR MohamedLaboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, université de Bejaia, Algérie.Enrico DrioliIstituto per la Tecnologia delle Membrane (ITM-CNR), Italy0000-0003-1092-5368Alberto FigoliInstitute on Membrane Technology, ITM-CNR, c/o University of Calabria0000-0002-3347-0506Journal Article20171208<span class="fontstyle0">Functionalized polymeric microspheres based on a modifed polyether ether keetone (PEEK-WC) using immersion precipitation techniques were successfully prepared by doping initial polymeric solutions with DEHPA. The viscosity of the doping solution was measured for determining the optimal value for obtaining reproducible capsules. The modifed microspheres were characterized by several techniques such as SEM, BET and porometer. From the results, meso-porous microspheres with a small tail were obtained characterized by an asymmetric structure and a diameter varying from 50 µm to around 1400 µm. The produced microspheres have been used efciently for Rhodamine B adsorption in a column system with extraction efciency of 99%.Moreover, the modifed microspheres could be regenerated with high efciency and a good reusability after 9 cycles of sorption and desorption. The adsorption kinetics, of Rhodamine B by the produced microspheres, was best represented by the pseudo-second-order kinetics model which confrms a chemisorption mechanism. However, the results of the intra-particle model reveal that the sorption of Rhodamine B onto the microspheres is a combination between the chemisorption and intraparticle diffusion. The fndings of this study provide novel information for the development of new polymeric microspheres adsorbents towards dyes for potential applications for example in wastewater textile treatment.</span>https://www.msrjournal.com/article_30685_1db04f541ba6593da92104572cbb2e5c.pdfFIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Study on Operational Conditions to Minimize Membrane Fouling in Membrane Bioreactor (MBR) System for Wastewater Treatment-Preliminary Pilot Tests2122173091710.22079/jmsr.2018.81330.1177ENYakubu AbdullahiJarmaChem Eng Dept, Ege UniversityIlker ParlarChem Eng Dept, Ege UniversityTaylan O.PekITOB-OSBKaan KayralITOB-OSB, Tekeli-Menderes, İzmir, TurkeyNalan KabayEge University0000-0001-8516-6752Nevzat Ö. YiğitSüleyman Demirel University, Environmental Engineering Department, Isparta, TurkeyMehmet KitişSüleyman Demirel University, Environmental Engineering Department, Isparta, TurkeyMithat YükselEge University, Chemical Engineering Department, İzmir, TurkeyJournal Article20180211<span class="fontstyle0">In this study, effect of antiscalant usage on minimizing of membrane fouling due to high water hardness during wastewater treatment tests run by a pilot-scale membrane bioreactor (MBR) system. The membranes used in these studies were Kubota flat sheet MBR membranes made from polyethylene with a pore size of 0.4 micrometer. Preliminary tests were carried out with tap water for sixty days of operation. To investigate the applicability and the effect of antiscalant usage, four experiments (two experiments with tap water and two experiments with wastewater) were carried out and each experiment lasted for 29 days. The tests were carried out in the presence and in the absence of antiscalant. Fouling on MBR membranes was investigated by monitoring flux decline versus time. In tap water tests, unstable flux was observed initially then a flux decline due inorganic scaling. On the other hand, the flux was almost constant up to end of the experiment in the presence of antiscalant. During wastewater tests (in the absence of antiscalant), the flux decline was observed within ten days of operation while during wastewater tests in presence of antiscalant, the flux did not decline until twenty days of operation. The use of antiscalant did not influence<br />the efuent quality. According to the quality analyses results for MBR efuent, removal efciencies for COD, PO</span><span class="fontstyle0" style="font-size: 4pt;">4</span><span class="fontstyle0">-P, and total N were 95%, 98% and 40%, respectively. In addition,<br />99% of total suspended solid rejection and 98% of color rejection were obtained in the presence or absence of antiscalant.</span>https://www.msrjournal.com/article_30917_094a884037ba6c99caa49d677722cee7.pdfFIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Integrated Membrane Processes (EDR-RO) for Water Reuse in the Petrochemical Industry2182263087510.22079/jmsr.2018.82055.1180ENCarla Denize VenzkeUniversidade Federal do Rio Grande do Sul (UFRGS)- Programa de Pós-Graduação em Engenharia de Minas, Metalúrgica e de Materiais (PPG3EM). Av. Bento Gonçalves, 9500, Porto Alegre/RS, BrasilAlexandre GiacobboUniversidade Federal do Rio Grande do Sul (UFRGS)- Programa de Pós-Graduação em Engenharia de Minas, Metalúrgica e de Materiais (PPG3EM). Av. Bento Gonçalves, 9500, Porto Alegre/RS, BrasilCláudia Regina KlauckPrograma de Pós-graduação em Qualidade Ambiental, Universidade FEEVALE, Rodovia RS 239, n° 2755, Cep: 93352-000, Novo Hamburgo, RS, BrazilCheila ViegasPrograma de Pós-graduação em Qualidade Ambiental, Universidade FEEVALE, Rodovia RS 239, n° 2755, Cep: 93352-000, Novo Hamburgo, RS, BrazilEverton HansenPrograma de Pós-graduação em Qualidade Ambiental, Universidade FEEVALE, Rodovia RS 239, n° 2755, Cep: 93352-000, Novo Hamburgo, RS, BrazilPatrice Monteiro De AquimPrograma de Pós-graduação em Qualidade Ambiental, Universidade FEEVALE, Rodovia RS 239, n° 2755, Cep: 93352-000, Novo Hamburgo, RS, BrazilMarco Antonio SiqueiraRodriguesPrograma de Pós-graduação em Qualidade Ambiental, Universidade FEEVALE, Rodovia RS 239, n° 2755, Cep: 93352-000, Novo Hamburgo, RS, Brazil -Andrea MouraBernardesUniversidade Federal do Rio Grande do Sul Escola de Engenharia/Departamento de Materiais0000-0001-7687-0908Journal Article20180302<span class="fontstyle0">The objective of this work was to apply a hybrid process, including electrodialysis reversal (EDR) and reverse osmosis (RO) to the treatment of petrochemical wastewater in order to obtain process water for reuse. A water balance was carried out to defne the main water consumers and the process step that could receive the produced water. Additionally, toxicity assays were performed to evaluate the removal of toxic compounds after EDR and RO processes. Different operation parameters in the EDR and RO processes were investigated to enhance the membrane performance. The EDR assays were performed in a pilot plant, with 300 ion-selective membranes and an area of 0.096 m</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">for each membrane. The process conditions were: electrical potential of 150 V and 250 V, dilute flow rate at 600 L.h</span><span class="fontstyle0" style="font-size: 4pt;">-1 </span><span class="fontstyle0">and 1,000 L.h</span><span class="fontstyle0" style="font-size: 4pt;">-1</span><span class="fontstyle0">, concentrate flow rate maintained at 200 L.h</span><span class="fontstyle0" style="font-size: 4pt;">-1</span><span class="fontstyle0">, with 25% recirculation and operation in series and parallel modes. The RO assays were conducted in pilot equipment, with a polyamide spiral membrane module with a membrane area of 7.2 m</span><span class="fontstyle0" style="font-size: 4pt;">2</span><span class="fontstyle0">. Assays were performed at 8 bar, varying the reject flow in each experiment as follows: 150, 300, 450 and 600 L.h</span><span class="fontstyle0" style="font-size: 4pt;">-1</span><span class="fontstyle0">. The EDR-RO hybrid system presented a removal rate above 90% for most physicochemical parameters from the wastewater, generating a process water without toxicity.</span>https://www.msrjournal.com/article_30875_0d2dcace44518a49efacb1753456e476.pdfFIMTEC & MPRLJournal of Membrane Science and Research2476-54064420181101Regeneration of СO2 Physical Solvents at Elevated Pressures in Gas-Liquid Membrane Contactor2272383121210.22079/jmsr.2018.82177.1179ENStepan BazhenovPolymeric Membranes Laboratory, A.V.Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences (TIPS RAS)0000-0002-2010-5294Danila BakhtinPolymeric Membranes Laboratory, A.V.Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences (TIPS RAS)0000-0001-8619-8326Alexey VolkovA.V.Topchiev Institute of Petrochemical Synthesis, RAS (TIPS RAS)0000-0003-4524-4597Journal Article20180227<span class="fontstyle0">In the present work, a membrane contactor with asymmetric flat-sheet poly(vinyltrimethylsilane) (PVTMS) membranes was proposed for the CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">desorption process from physical solvents at elevated trans-membrane pressures. Different solvents were studied: water, a mixture of polyethylene glycol dimethyl ethers (Genosorb</span><span class="fontstyle0" style="font-size: 4pt;">® </span><span class="fontstyle0">tradename, Selexol process) and a number of ionic liquids (ILs). The compatibility of PVTMS with physical solvents was evaluated. Thorough sorption and swelling degree tests, FTIR experiments, and solvent permeation study provided insights into PVTMS-solvent interaction and allowed the selection of water, Genosorb</span><span class="fontstyle0" style="font-size: 4pt;">® </span><span class="fontstyle0">and 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim][BF</span><span class="fontstyle0" style="font-size: 4pt;">4</span><span class="fontstyle0">]) as demo solvents for proof-of-concept. CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">desorption experiments were successfully realized at elevated trans-membrane pressure (10 bar) and different temperatures (30 and 50ºC). Increasing the temperature from 30 tо 50ºС allowed obtaining higher CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">desorption flux for all studied solvents. The combination of such parameters as CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">flux (up to 4.5 m</span><span class="fontstyle0" style="font-size: 4pt;">3 </span><span class="fontstyle0">(STP)/(m</span><span class="fontstyle0" style="font-size: 4pt;">2</span><span class="fontstyle0">.h)) and the pressure difference between gas and liquid phases (up to 10 bar) is the best among the available literature data. The detailed investigation of [Emim][BF</span><span class="fontstyle0" style="font-size: 4pt;">4</span><span class="fontstyle0">] possessing the highest CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">flux revealed that an increase of CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">content in [Emim][BF</span><span class="fontstyle0" style="font-size: 4pt;">4</span><span class="fontstyle0">] provided by increasing absorption pressure up to 20 bar resulted in a signifcant CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">desorption flux growth up to 7.5 m</span><span class="fontstyle0" style="font-size: 4pt;">3 </span><span class="fontstyle0">(STP)/(m</span><span class="fontstyle0" style="font-size: 4pt;">2</span><span class="fontstyle0">.h). Finally, the SEM and EDXS study of membranes after CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">desorption tests revealed the deposition of particles containing Na and F elements from ionic liquid [Emim][BF</span><span class="fontstyle0" style="font-size: 4pt;">4</span><span class="fontstyle0">] on the membrane surface. Nevertheless, the same study proved the stability of the membrane morphology structure at elevated transmembrane pressures even up to 20 bar.</span>https://www.msrjournal.com/article_31212_a79c3cb32570d9d958849e452c804ed4.pdf