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New lives for old reverse osmosis (RO) membranes
Desalination, 2010The overall objective of the present work was to estimate by membrane autopsy the level of performances degradation of old reverse osmosis (RO) membranes/modules in order to envisage their reuse A mechanistic approach using the Spiegler-Kedem-Karchalsky model helps us to observe that the old RO membrane acquired a convective mass transfer We defined a ...
Mohamedou, E. Ould +4 more
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Journal of Membrane Science, 2021
Abstract The osmotically assisted reverse osmosis (OARO) has been recently proposed to increase the water recovery of the reverse osmosis (RO) process, in which RO has reached its limitations. Strong membranes are essential for both OARO and RO processes.
Mohammad Askari +3 more
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Abstract The osmotically assisted reverse osmosis (OARO) has been recently proposed to increase the water recovery of the reverse osmosis (RO) process, in which RO has reached its limitations. Strong membranes are essential for both OARO and RO processes.
Mohammad Askari +3 more
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Biofiltration pretreatment for reverse osmosis (RO) membrane in a water reclamation system
Chemosphere, 2005Biofouling control is considered as a major challenge in operating membrane systems. A lab-scale RO system was setup at a local water reclamation plant to study the feasibility of using biofiltration as a pretreatment process to control the biofouling.
Hu, J.Y. +4 more
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Scaling and Fouling of Reverse Osmosis (RO) Membrane: Technical Review
2021An estimated 1.2 billion inhabitants are still faced with the water crises worldwide and the number keeps increasing. The population growth, rising standards of living, industrial proliferation, water source contamination and climate change remains one of the contributing factors to water scarcity.
Ignatius Shahonya +3 more
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Optimization of chemical pretreatment for reverse osmosis (RO) seawater desalination
Desalination, 1987Abstract A total of 40 different experiments to optimize the SDI in the filtered seawater have been conducted and evaluated. Different coagulant-acid concentrations have been dosed in the feed seawater before passing the sand filters. Different concentrations of ferrichloro-sulphate (0.4–1.5 ppm) and sulphuric acid (15–30 ppm) were investigated and ...
H. Al-Rqobah +3 more
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Efficient Desalination by Reverse Osmosis: A guide to RO practice
Water Intelligence Online, 2015Early applications of desalination were small-scale plants deploying a range of technologies. However with the technological developments in Reverse Osmosis, most new plants use this technology because it has a proven history of use and low energy and capital costs compared with other available desalination technologies.
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On the optimization of RO (Reverse Osmosis) system arrangements and their operating conditions
Energy, 2016Abstract A simple approach has been implemented to identify the optimum RO (Reverse Osmosis) system structure and the operating parameters leading to the minimum total cost. Various two-stage and three-stage arrangements of practical functionality have been optimized.
H. Kotb, E.H. Amer, K.A. Ibrahim
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Removal of Pharmaceuticals by Ultrafiltration (UF), Nanofiltration (NF), and Reverse Osmosis (RO)
2013In recent years pressure driven membrane processes of ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) are being widely investigated for the removal of pharmaceuticals from various water bodies. Ultrafiltration showed relatively low removal of pharmaceuticals, in most cases < 50%, due to larger molecular weight cut-off (MWCO) of this ...
Dolar, Davor, Košutić, Krešimir
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Progress in the modification of reverse osmosis (RO) membranes for enhanced performance
Journal of Industrial and Engineering Chemistry, 2018Abstract RO membranes, the core elements for RO process formed using polyamide, have found prominent space in membrane technology. RO membranes with better application perspective could be achieved by precise controlling the kinetics of IP reaction and surface modification strategy.
T.A. Otitoju, R.A. Saari, A.L. Ahmad
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Physical Chemistry Chemical Physics, 2019
Difference in the distribution of water molecules around the protein leads to different fouling structures in FO and RO.
Shivam Tiwari +2 more
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Difference in the distribution of water molecules around the protein leads to different fouling structures in FO and RO.
Shivam Tiwari +2 more
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