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Modeling and optimization of surface modification process of ultrafiltration membranes by guanidine-based deep eutectic solvent.
Heliyon
January 2025
Department of Applied Chemistry, Faculty of Chemistry, Razi University, 67144-14971, Kermanshah, Iran.
Low performance and the high fouling tendency of Polyetherimide (PEI) membranes prevent their widespread commercial utility. In this study, we utilized a deep eutectic solvent (DES) as a versatile agent for surface modification of the PEI membrane using a simple and sustainable method. To attain an efficient PEI membrane, modeling and optimization of the modification condition were conducted via response surface methodology (RSM).
View Article and Find Full Text PDFHighly selective copper recovery from industrial wastewater via electric field-enhanced ultrafiltration assisted with a picolyl-modified polyelectrolyte.
Water Res
January 2025
China Electronics System Engineering No.2 Construction Co., Ltd., Wuxi 214115, PR China.
Copper-containing industrial wastewater, characterized by strong acidity, high ionic strength, and various competing metals, presents significant challenges for Cu(II) recovery. To address these issues, an electric field-enhanced ultrafiltration process was developed, assisted with a functional polyelectrolyte with high selectivity for Cu(II). The polyelectrolyte, termed PPEI, was synthesized by grafting picolyl groups onto polyethyleneimine (PEI), enhancing its affinity for Cu(II).
View Article and Find Full Text PDFComparison of Sulfamethoxazole Removal Efficiency Using Polyethersulfone Ultrafiltration Membrane Modified by Various Methods.
Materials (Basel)
December 2024
Department of Chemical Engineering, Faculty of Chemistry, Campus of Espinardo, University of Murcia, 30100 Murcia, Spain.
Nowadays, there is a growing interest in membrane modification processes to improve their characteristics and the effectiveness of their treatments and reduce the possible fouling. In this sense, in this work, a modification of an ultrafiltration membrane with three different materials has been carried out: reduced graphene oxide (rGO), chitosan and MgCl. For both the native and the modified membranes, a study has been carried out to remove the emerging contaminant sulfamethoxazole (SMX).
View Article and Find Full Text PDFInvestigation of Filtration Performances in Eggshell Ultrafiltration Membranes with Surface Functionalized Using Graphene Oxide.
ACS Omega
December 2024
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km 21 Jatinangor, Sumedang 45363, Indonesia.
Article Synopsis
- This study highlights the significance of preventing fouling in ultrafiltration membranes to improve their efficiency in wastewater treatment, particularly for dissolved dye molecules.
- Researchers tested eggshell membranes modified with different concentrations of graphene oxide (GO) to assess impacts on permeability, rejection efficiency, and flow rates.
- The findings demonstrate that the optimal use of 0.5 mg/mL GO at 45 psi pressure significantly enhances membrane performance, achieving a rejection efficiency of 36.6% and improving the filtration process's effectiveness against dye concentration.
A Novel Configuration of Venovenous Modified Ultrafiltration for Bivalirudin Removal After HeartMate3 Insertion.
J Cardiothorac Vasc Anesth
December 2024
Division of Cardiothoracic Anesthesiology, Duke University Medical Center, Durham, NC.
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