Loading...
  • nanoparticles
  • Extended RO productivity experiments using laboratory grade water and diluted pretreated seawater were conducted to compare the effect that different nanoparticles had on membrane active layers. (mdpi.com)
  • The contact angle measurements indicated that, hydrophilicity of the virgin PES membranes was improved by the addition of PAI and TiO 2 nanoparticles due to the preferential orientation of these components towards the membrane surface during immersion precipitation . (rsc.org)
  • From the results, it was revealed that low interfacial free energy membranes prepared by the incorporation of PAI and TiO 2 nanoparticles may be valuable in fouling stability industrial separations. (rsc.org)
  • In this context, nanoparticles may be used as sorbents, as reactive agents (photocatalysts or redox agents), or in membranes used for nanofiltration. (wikipedia.org)
  • toluene
  • Initially, the SB in toluene solution was found to bind strongly to the surface hydroxyl groups of the unmodified membranes, an effect not observed in EA solution. (wur.nl)
  • aqueous
  • A group of Iranian researchers from Babol University of Technology succeeded in the production of polysulfonic nanofiltration membranes with desirable performance and high stability in non-aqueous media. (nanotech-now.com)
  • Taking into consideration the fact that in many cases, the dissolving part must be separated from a non-aqueous solution, ordinary nanofiltration membranes cannot be used due to their low chemical and thermal stability in non-aqueous solvents. (nanotech-now.com)
  • Hernández, A. 2017-12-18 00:00:00 Dilute Pb(II) aqueous solutions were nanofiltered through a tubular membrane with good rejections. (deepdyve.com)
  • Moreover, moderately high concentrations of aqueous Pb(II) solutions can be reduced to totally sure levels in less than four nanofiltration steps. (deepdyve.com)
  • Dilute Pb(II) aqueous solutions were nanofiltered through a tubular membrane with good rejections. (deepdyve.com)
  • Moreover
  • Moreover, the presence of functional groups such as ether, sulfide, and sulfoxide in the structure of the sulfonic copolymer improves the reactivity and chemical and thermal resistance of the membrane components. (nanotech-now.com)
  • trans-membrane
  • At low pressure, low feed concentration, and high feed velocity, concentration polarisation effects are minimal and flux is almost proportional to trans-membrane pressure difference. (wikipedia.org)
  • solvents
  • The master's project will consist of first grafting polymer(s) of choice onto a porous ceramic support, characterizing the resulting membrane as well as analyzing its performance in diverse solvents and solutes. (utwente.nl)
  • Swelling behavior of solvents cannot be solely explained by classifying solvents into aprotic, polar aprotic and polar protic solvents.The results of this work can aid in constructing transport models and can help predicting polymer-solvent compatibility and membrane performance in OSN applications. (utwente.nl)
  • reactivity
  • We demonstrate an application of the combined approach and its potential to discover stereochemistry, molecular interaction potentials, and reactivity of two FilmTec nanofiltration membranes (NF-90 and NF-270). (mdpi.com)
  • separations
  • Furthermore, using membranes enables separations to take place that would be impossible using thermal separation methods. (wikipedia.org)
  • For example, it is impossible to separate the constituents of azeotropic liquids or solutes which form isomorphic crystals by distillation or recrystallization but such separations can be achieved using membrane technology. (wikipedia.org)
  • Temperature
  • A fairly comprehensive discussion about the effects of PEG, coagulation bath temperature and irradiation time on membrane structure and AMX recovery performance was represented in this study. (biomedcentral.com)
  • They also have excellent thermal stability which makes them usable in high-temperature membrane operations. (wikipedia.org)
  • purification
  • These membranes can also filter out particles that are too small for conventional systems which can lead to better water purification techniques and less waste. (wikipedia.org)
  • oxide
  • Graphene oxide (GO)-based nanofiltration (NF) membranes have simple fabrication and excellent performance in broad applications. (ncsu.edu)
  • Silicon carbide requires higher sintering temperatures (>2000 °C) compared to oxide based membranes (1200-1600 °C). The pioneers in developing and commercializing silicon carbide membranes are the Danish company Liqtech, French company Veolia (CeraMem) and American company Kemco Systems. (wikipedia.org)
  • water flux
  • The prepared membranes were characterized by attenuated total reflectance-Fourier transform infrared spectroscopy ( ATR-FTIR ), X-ray diffraction ( XRD ), differential scanning calorimetry ( DSC ), scanning electron microscopy ( SEM ), atomic force microscopy ( AFM ), pure water flux, water content and contact angle technique to investigate the influence of PAI on the properties of the membranes. (rsc.org)
  • The pure water flux of the membrane was recovered by more than 90% by washing. (ncsu.edu)
  • For example, carbon nanotube membranes can demonstrate higher water flux with lower energy than current membranes. (wikipedia.org)
  • efficiency
  • This objective has been achieved by characterizing Rhodamine-WT and H3AsO3 removal efficiency by newly developed RO/NF membranes having rigid star amphiphiles (RSAs) as an active layer material. (illinois.edu)
  • The efficiency of these membranes in the separation of mixture solutions of divalent salt and surfactant were found to be improved significantly. (rsc.org)
  • industrial
  • The NanoMemPro IPPC database focus the operations where membranes are introduced as Best Available Techniques in the industrial areas addressed by the IPPC Directive. (wikipedia.org)
  • The IPPC Database was designed by the NanoMemPro Network of Excellence to focus the operations where membranes are introduced as BAT in the industrial areas addressed by the IPPC Directive documents. (wikipedia.org)
  • Sea Water Desalination Fuel cell membranes Industrial Water Hotels and Restaurant water Heating water Boiler and cooling water Water for air-conditioning systems Swimming pool water The product portfolio covers the entire spectrum of water treatment technology. (wikipedia.org)