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Keskin B, Korkut S, Ormancı-Acar T, Turken T, Tas CE, Menceloglu YZ, Unal S, Koyuncu I. Pilot scale nanofiltration membrane fabrication containing ionic co-monomers and halloysite nanotubes for textile dye filtration. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:1529-1541. [PMID: 37001163 DOI: 10.2166/wst.2023.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Wastewater from the textile industry contains high concentrations of pollutants, so the wastewater must be treated before it is discharged. In addition, the reuse of treated wastewater should be considered from an environmental point of view, as large volumes of wastewater are produced. Since textile wastewater mainly contains dyestuffs, it must be treated effectively using environmentally friendly technologies. Membrane processes are widely used in textile wastewater treatment as they have distinct advantages over conventional wastewater treatment methods. This study reports the pilot-scale manufacturing and characterization of three different NF membranes. Three different types of membranes were fabricated. The fabricated membranes were compared through characterization by surface properties, chemical structure and morphology. Membranes were tested for pure water flux. Then the synthetic wastewater (SWW) was tested for flux and rejection. Lastly, the textile wastewater was tested. The textile wastewater flux of pure piperazine (PIP), 60% S-DADPS and 0.04% halloysite nanotubes (HNTs) were 22.42, 79.58 and 40.06 L m-2 h-1. It has been proven that the 60% s-DADPS membrane provides up to four times improvement in wastewater flux and simultaneously. In addition, NF membranes produced using HNT and sDADPS on a pilot scale have brought innovation to the literature with the good results obtained.
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Affiliation(s)
- Başak Keskin
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey E-mail: ; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Sevde Korkut
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey E-mail: ; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Türkan Ormancı-Acar
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, İstanbul, Turkey
| | - Turker Turken
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey E-mail: ; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Cuneyt Erdinc Tas
- Faculty of Engineering and Natural Sciences, Material Science and Nanoengineering, Sabancı University, Istanbul, Turkey
| | - Yusuf Z Menceloglu
- Faculty of Engineering and Natural Sciences, Material Science and Nanoengineering, Sabancı University, Istanbul, Turkey; Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence, Sabancı University, Istanbul, Turkey
| | - Serkan Unal
- Faculty of Engineering and Natural Sciences, Material Science and Nanoengineering, Sabancı University, Istanbul, Turkey; Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence, Sabancı University, Istanbul, Turkey
| | - Ismail Koyuncu
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey E-mail: ; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
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Fabrication of Ti 2SnC-MAX Phase Blended PES Membranes with Improved Hydrophilicity and Antifouling Properties for Oil/Water Separation. Molecules 2022; 27:molecules27248914. [PMID: 36558045 PMCID: PMC9788415 DOI: 10.3390/molecules27248914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
In this research work, the Ti2SnC MAX phase (MP) was synthesized via the reactive sintering procedure. The layered and crystalline structure of this MP was verified by SEM, HRTEM, and XRD analyses. This nano-additive was used for improvement of different features of the polyethersulfone (PES) polymeric membranes. The blended membranes containing diverse quantities of the MP (0-1 wt%) were fabricated by a non-solvent-induced phase inversion method. The asymmetric structure of the membranes with small holes in the top layer and coarse finger-like holes and macro-voids in the sublayer was observed by applying SEM analysis. The improvement of the membrane's hydrophilicity was verified via reducing the contact angle of the membranes from 63.38° to 49.77° (for bare and optimum membranes, respectively). Additionally, in the presence of 0.5 wt% MP, the pure water flux increased from 286 h to 355 L/m2 h. The average roughness of this membrane increased in comparison with the bare membrane, which shows the increase in the filtration-available area. The high separation efficiency of the oil/water emulsion (80%) with an improved flux recovery ratio of 65% was illustrated by the optimum blended membrane.
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Tuncay G, Keskin B, Türken T, Vatanpour V, Koyuncu I. Development of braid reinforced hollow fiber membranes as both ultrafiltration and nanofiltration membranes: Effect of pore forming additive on structure and performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.53098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gizem Tuncay
- Environmental Engineering Department Istanbul Technical University Istanbul Turkey
- National Research Center on Membrane Technologies Istanbul Technical University Istanbul Turkey
| | - Başak Keskin
- Environmental Engineering Department Istanbul Technical University Istanbul Turkey
- National Research Center on Membrane Technologies Istanbul Technical University Istanbul Turkey
| | - Türker Türken
- Environmental Engineering Department Istanbul Technical University Istanbul Turkey
- National Research Center on Membrane Technologies Istanbul Technical University Istanbul Turkey
| | - Vahid Vatanpour
- Environmental Engineering Department Istanbul Technical University Istanbul Turkey
- National Research Center on Membrane Technologies Istanbul Technical University Istanbul Turkey
- Department of Applied Chemistry, Faculty of Chemistry Kharazmi University Tehran Iran
| | - Ismail Koyuncu
- Environmental Engineering Department Istanbul Technical University Istanbul Turkey
- National Research Center on Membrane Technologies Istanbul Technical University Istanbul Turkey
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Ormancı-Acar T, Korkut S, Keskin B, Ağtaş M, Taş CE, Mutlu-Salmanlı Ö, Türken T, Menceloğlu YZ, Ünal S, Koyuncu İ. Combining S-DADPS monomer and halloysite nanotube for fabrication superior nanofiltration membrane. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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