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Uranium adsorption by iron modified zeolite and zeolite composite membranes.
Chemosphere
November 2024
Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany. Electronic address:
Composite membranes incorporated with high-performance adsorbents are promising for uranium removal. The impact of speciation and ionic strength on uranium adsorption by zeolites was investigated in both static adsorption and composite membrane filtration. Zeolites with high Si/Al ratios exhibited the highest uranium adsorption capacity.
View Article and Find Full Text PDFComponent Distribution, Shear-Flow Behavior, and Sol-Gel Transition in Mixed Dispersions of Casein Micelles and Serum Proteins.
Foods
October 2024
UMR 1253 Science et Technologie du Lait et de L'Oeuf (STLO), INRAE, Institut Agro, 35000 Rennes, France.
The shear flow and solid-liquid transition of mixed milk protein dispersions with varying concentrations of casein micelles (CMs) and serum proteins (SPs) are integral to key dairy processing operations, including microfiltration, ultrafiltration, diafiltration, and concentration-evaporation. However, the rheological behavior of these dispersions has not been sufficiently studied. In the present work, dispersions of CMs and SPs with total protein weight fractions () of 0.
View Article and Find Full Text PDFFeasibility study of electrodialysis as an ammonium reuse process for covering the nitrogen demand of an industrial wastewater treatment plant.
Sci Total Environ
December 2024
Institute of Water Quality and Resource Management, TU Wien, Vienna, Austria.
Electrodialysis (ED) is a cost-effective membrane technology used is a variety of fields for desalination and concentration. This feasibility study explores the potential of ED as an NH-N recovery technology from anaerobic digestate liquor (ADL), and the use of the concentrate as a nitrogen source in an industrial wastewater treatment plant (WWTP). Three neighboring WWTPs were the focus of this study: Two municipal WWTPs A and B, operating anaerobic sludge stabilization, and a pulp & paper WWTP C, utilizing urea as a nitrogen source.
View Article and Find Full Text PDFCoupling Low-Frequency Ultrasound to a Crossflow Microfiltration Pilot: Effect of Ultrasonic Pulse Application on Sono-Microfiltration of Jackfruit Juice.
Membranes (Basel)
September 2024
Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Tepic 63175, Mexico.
Article Synopsis
- * Investigated both corrective and preventive applications of LFUS, finding that the preventive mode significantly improved filtration efficiency by cutting operation time by 50% and increasing membrane permeability by 81%, without damaging the membrane.
- * The SMF process maintained the physicochemical properties and the total soluble phenol (TSP) content of the juice, marking a novel approach to enhancing juice clarification while preserving bioactive compounds.
Causes of negatively charged meso-colloids formed in the coagulation process: Implication of the origin of foulants in the coagulation-membrane filtration process.
Water Res
November 2024
Research and Development Initiatives, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan.
Tiny colloids with a size similar to that of membrane pores are responsible for irreversible fouling in the pre-coagulation microfiltration membrane filtration process for drinking water treatment. Such colloidal particles are defined here as meso‑colloids, and the charge neutralization of meso‑colloids is demonstrated to be a key to controlling irreversible fouling. However, meso‑colloids remain negatively charged at neutral pH, the reason for which is still unclear.
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