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Reverse osmosis

About: Reverse osmosis is a research topic. Over the lifetime, 20780 publications have been published within this topic receiving 299185 citations. The topic is also known as: RO.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors reviewed the recent reports about fouling mitigation of nanofiltration and reverse osmosis (RO) membranes, mainly focusing on the feed water pretreatment and membrane modification.
Abstract: Currently, nanofiltration (NF) and reverse osmosis (RO) membranes are the most widely employed in surface water treatment, but membrane fouling has always been an important problem in the process of its application and scientific community paid wide attentions to this issue. This paper aims at reviewing the recent reports about fouling mitigation of NF/RO membranes, mainly focusing on the feed water pretreatment and membrane modification. In generally, high-quality feed water can ensure long-term stability of the membrane systems through altering size distribution of foulant, reducing its affinity to membrane surface and removing microbial nutrient source. Membrane modification can also effectively enhance anti-fouling capacity of NF/RO membranes by tailoring surface hydrophilicity, roughness, zeta potential, and functional groups so as to reduce the interaction between membrane surface and foulants. Besides, in order to recover the membrane flux of NF/RO systems, chemical cleaning is inevitable. ...

83 citations

Journal ArticleDOI
TL;DR: Although TiO(2)-photocatalysis showed the least efficient and most expensive figures, it improved the biodegradability of the retentate, so its combination with a final biological step almost achieved the total removal of the COD.

83 citations

Journal ArticleDOI
TL;DR: In this article, a bench scale RO process simulator was operated in a batch concentration mode to determine the effects of product water recovery and feed water temperature on flux, rejection, and inorganic fouling by gypsum scale formation for simulated brackish water.

83 citations

Journal ArticleDOI
TL;DR: In this article, 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized cellulose nanofibers (CNFs) were incorporated into the polyamide layer of thin film composite (TFC) reverse osmosis (RO) membrane during interfacial polymerization to improve its membrane performance.

83 citations

Journal ArticleDOI
TL;DR: In this article, the nominal performance of composite seawater membrane elements has improved significantly, and new effective water microfiltration technologies have been introduced commercially, which can be utilized to improve the quality of surface seawater feed to the level comparable to, or better than the water quality from the well water sources.

83 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023553
20221,099
2021636
2020782
20191,087
20181,331