Surface modification of high-rejection ultrafiltration membrane with antifouling capability using activated oxygen treatment and metallic glass deposition

2020 ◽  
Vol 529 ◽  
pp. 147131 ◽  
Author(s):  
Shewaye Temesgen Kassa ◽  
Chien Chieh Hu ◽  
Degu Lere Keshebo ◽  
Micah Belle Marie Ang ◽  
Juin Yih Lai ◽  
...  
Keyword(s):  
Surface Modification ◽  
Metallic Glass ◽  
Ultrafiltration Membrane ◽  
Activated Oxygen ◽  
Oxygen Treatment ◽  
High Rejection

High-flux and high rejection TiO2 nanofibers ultrafiltration membrane with porous titanium as supporter

2020 ◽  
Vol 248 ◽  
pp. 117000 ◽  
Author(s):  
Yutang Kang ◽  
Shihui Jiao ◽  
Yue Zhao ◽  
Boran Wang ◽  
Zhenwei Zhang ◽  
...  
Keyword(s):  
Porous Titanium ◽  
Ultrafiltration Membrane ◽  
High Flux ◽  
Tio2 Nanofibers ◽  
High Rejection

High rejection performance ultrafiltration membrane with ultrathin dense layer fabricated by the movement and dissolution of metal–organic frameworks

2020 ◽  
Vol 44 (32) ◽  
pp. 13745-13754
Author(s):  
Qi Wang ◽  
Shaohu Zhang ◽  
Xiwei Ji ◽  
Fen Ran
Keyword(s):  
Water Pollution ◽  
Metal Organic Frameworks ◽  
Ultrafiltration Membrane ◽  
Dense Layer ◽  
Ultrafiltration Membranes ◽  
Metal Organic ◽  
High Rejection

Ultrafiltration membranes have potential to solve the problems of water pollution and shortage.

Thin Film Nanofibrous Composite Ultrafiltration Membrane for Oil Removal from Oilfield Wastewater

2013 ◽  
Vol 669 ◽  
pp. 99-102 ◽  
Author(s):  
Xiong Li ◽  
Li Li Wang ◽  
Yin Yang ◽  
Hao You ◽  
Wen Cun Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Mixed Solvent ◽  
Rejection Rate ◽  
Solvent System ◽  
Ultrafiltration Membrane ◽  
Poly Vinyl Alcohol ◽  
Electrospinning Technique ◽  
Operation Pressure ◽  
High Rejection Rate ◽  
High Rejection

Nanofibrous substrate composite ultrafiltration membrane consisted of polyacrylonitrile (PAN) electrospun scaffold which was used as the substrate, and a thin crosslinked poly(vinyl alcohol) (PVA) barrier layer which was prepared by electrospinning technique combined with mixed solvent treatment. The thickness of PVA nanofibrous top layer was controlled by changing the electrospun depositing time. Through immersing PVA/PAN double-layer mats into water/acetone mixed solvent system, the PVA nanofibrous top layer was swollen to merge imperceptibly into an integrated barrier film on the surface of PAN substrate, and then chemically crosslinked by glutaraldehyde. The resultant PVA/PAN thin film nanofibrous composite (TFNC) membrane has high rejection rate (99.6%), high flux (410.5l/m2h) and good anti-fouling characteristic at very low operation pressure (0.2MPa) for separating oil from the oilfield wastewater. Additionally, the removal of TDS, suspended matter, total iron and sulfate reducing bacteria (SRB) showed high rejection rate with relatively stable PH.

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