scholarly journals Emerging investigators series: a steric pore-flow model to predict the transport of small and uncharged solutes through a reverse osmosis membrane

2018 ◽  
Vol 4 (4) ◽  
pp. 493-504 ◽  
Author(s):  
Haruka Takeuchi ◽  
Hiroaki Tanaka ◽  
Long D. Nghiem ◽  
Takahiro Fujioka
Keyword(s):  
Reverse Osmosis ◽  
Water Reuse ◽  
Potable Water ◽  
Flow Model ◽  
Reverse Osmosis Membrane ◽  
New Approach ◽  
Pore Flow ◽  
Ro Membrane

This study proposed a new approach to apply the steric pore-flow model to predict the rejection of eight N-nitrosamines and seven VOCs that are of great concern in potable water reuse through an RO membrane.

Comparative Study on the Treatment of Biologically Treated Textile Effluent by Nanofiltration and Reverse Osmosis for Water Reuse

2012 ◽  
Vol 441 ◽  
pp. 584-588
Author(s):  
San Chuan Yu ◽  
Zhi Wen Chen ◽  
Mei Hong Liu ◽  
Jing Wei Zhao
Keyword(s):  
Reverse Osmosis ◽  
Water Reuse ◽  
Cross Flow ◽  
Water Shortage ◽  
Nanofiltration Membrane ◽  
Reverse Osmosis Membrane ◽  
Permeate Flux ◽  
Flux Decline ◽  
Salinity Reduction ◽  
Ro Membrane

In view of the water shortage, the increasingly severe regulations as well as the release thresholds, it is becoming increasingly necessary to reuse the textile effluents. This work concerned the treatment of textile plant effluent after conventional biological processing by membrane technology for water reuse. Desal5 DK nanofiltration (NF) membrane and BW30 reverse osmosis (RO) membrane were investigated in this study in terms of COD and color removal, salinity reduction as well as permeate flux through cross-flow permeation tests. The results showed that the Desal5 DK nanofiltration membrane exhibited higher stabilized water permeability and flux decline than the reverse osmosis membrane because of its higher porosity and tendency towards fouling. The BW30 reverse osmosis membrane reduced salinity to a great extent than the Desal5 DK nanofiltration membrane. While the nanofiltration membrane exhibited better COD removal efficiency compared to the RO membrane, possibly due to its sieving removal mechanism. The treated water with good enough quality could be recycled back into the process, thereby offering economical benefits by reducing the water consumption and wastewater treatment cost.

scholarly journals Boron as a Surrogate for N-Nitrosodimethylamine Rejection by Reverse Osmosis Membranes in Potable Water Reuse Applications

2013 ◽  
Vol 47 (12) ◽  
pp. 6425-6430 ◽  
Author(s):  
Kha L. Tu ◽  
Takahiro Fujioka ◽  
Stuart J. Khan ◽  
Yvan Poussade ◽  
Annalie Roux ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Water Reuse ◽  
Potable Water ◽  
Reverse Osmosis Membranes

scholarly journals Biguanidine functional chitooligosaccharide modified reverse osmosis membrane with improved anti-biofouling property

RSC Advances ◽  
2018 ◽  
Vol 8 (73) ◽  
pp. 41938-41949 ◽  
Author(s):  
Huihui Wang ◽  
Yixuan Zhou ◽  
Yao Wang ◽  
Zhi Wang ◽  
Jixiao Wang
Keyword(s):  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Antimicrobial Properties ◽  
Reverse Osmosis Membrane ◽  
Ro Membrane

The COSG-modified RO membrane with excellent anti-adhesive and antimicrobial properties was successfully fabricated by second interfacial polymerization.

Preozonation Effects on the Reduction of Reverse Osmosis Membrane Fouling in Water Reuse

2011 ◽  
Vol 33 (5) ◽  
pp. 379-388 ◽  
Author(s):  
Benjamin D. Stanford ◽  
Aleksey N. Pisarenko ◽  
R. David Holbrook ◽  
Shane A. Snyder
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Water Reuse ◽  
Reverse Osmosis Membrane

Combining MBR and NF/RO membrane filtration for the removal of trace organics in indirect potable water reuse applications

2010 ◽  
Vol 365 (1-2) ◽  
pp. 206-215 ◽  
Author(s):  
Abdulhakeem Ali Alturki ◽  
Nichanan Tadkaew ◽  
James A. McDonald ◽  
Stuart J. Khan ◽  
William E. Price ◽  
...  
Keyword(s):  
Water Reuse ◽  
Membrane Filtration ◽  
Potable Water ◽  
Trace Organics ◽  
Ro Membrane

Accelerated Seeded Precipitation Pre-Treatment for the Improvement of Reverse Osmosis Membrane

2013 ◽  
Vol 477-478 ◽  
pp. 1365-1368
Author(s):  
Yong Chen ◽  
Xin Long Zhang ◽  
Ji Lai Lu ◽  
Wei Jing Liu ◽  
Yong Tu
Keyword(s):  
Reverse Osmosis ◽  
Reverse Osmosis Membrane ◽  
Seed Type ◽  
Sem Images ◽  
Seeded Precipitation ◽  
Initial Ph ◽  
Ro Membrane ◽  
Pre Treatment

The research on accelerated seeded precipitation pre-treatment for the improvement of secondary RO membrane was investigated. The influences of seed type, initial pH and seed dosage on accelerated seeded precipitation were studied. SEM images for the secondary RO membrane were also discussed.

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