Nanocomposite hollow fiber nanofiltration membranes: Fabrication, characterization, and pilot‐scale evaluation for surface water treatment

2019 ◽  
Vol 136 (45) ◽  
pp. 48205 ◽  
Author(s):  
Gulsum Melike Urper‐Bayram ◽  
Burcu Sayinli ◽  
Reyhan Sengur‐Tasdemir ◽  
Turker Turken ◽  
Enise Pekgenc ◽  
...  
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Hollow Fiber ◽  
Pilot Scale ◽  
Nanofiltration Membranes ◽  
Scale Evaluation ◽  
Surface Water Treatment

Hollow fiber nanofiltration membranes for surface water treatment: Performance evaluation at the pilot scale

2021 ◽  
Vol 42 ◽  
pp. 102100
Author(s):  
Reyhan Sengur-Tasdemir ◽  
Gulsum Melike Urper-Bayram ◽  
Turker Turken ◽  
Esra Ates-Genceli ◽  
Volodymyr V. Tarabara ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Water Treatment ◽  
Surface Water ◽  
Hollow Fiber ◽  
Pilot Scale ◽  
Nanofiltration Membranes ◽  
Surface Water Treatment ◽  
Treatment Performance

Determining flux behavior via a modified flux-step method for surface water treatment: pilot-scale ultrafiltration membrane operation

Desalination ◽  
2014 ◽  
Vol 341 ◽  
pp. 19-26 ◽  
Author(s):  
Kyoung Hoon Chu ◽  
Sung Soo Yoo ◽  
Jae Young Ahn ◽  
Jae Seok Jo ◽  
Kwang Baik Ko
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Pilot Scale ◽  
Ultrafiltration Membrane ◽  
Step Method ◽  
Surface Water Treatment

Development of polyethersulfone and polyacrylonitrile hollow fiber membranes for clarification of surface water and fungal enzyme broth

2013 ◽  
Vol 13 (1) ◽  
pp. 44-55 ◽  
Author(s):  
K. Praneeth ◽  
S. Kalyani ◽  
Y. V. L. Ravikumar ◽  
J. Tardio ◽  
S. Sridhar
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Hollow Fiber ◽  
Hydraulic Pressure ◽  
Water Recovery ◽  
Hollow Fiber Membranes ◽  
Log Reduction ◽  
Surface Water Treatment ◽  
Fungal Enzyme ◽  
Fiber Membranes

Hollow fiber membranes are of great commercial interest with several applications at the forefront of research to carryout bioseparations, drinking water purification, wastewater treatment besides liquid phase separations and gaseous separations. An experimental study was carried out to synthesize hollow fiber membranes from polyethersulfone (PES) and polyacrylonitrile (PAN) polymers to fabricate modules for surface water treatment and clarification of fungal enzyme broth. Design drawings of a manual hollow fiber spinning machine and spinneret were prepared to fabricate the necessary equipment for extrusion of hollow fibers. Effect of various spinning conditions on specific macroscopic fiber properties, such as outer diameter and wall thickness and membrane pore structure was studied. Concentrations of 15–20 wt% PES in n-methylpyrrolidone (NMP) and PAN in dimethyl formamide (DMF) solvents with important additives and pore formers were prepared. These polymer solutions were extruded through the spinneret and subjected to phase inversion in a water bath. The membranes were characterized by scanning electron microscopy (SEM) and pure water flux studies. PAN and PES exhibited 99.8 and 95.4% turbidity rejection. PAN exhibited a 5 log reduction of Escherichia coli bacteria for surface water treatment at a low hydraulic pressure of 1 bar with a flux of 54.2 L/m2 h at a water recovery of 80% whereas PES gave a flux of 36.6 L/m2 h with 4 log reduction of E. coli. PAN and PES membranes exhibited 54.9 and 69.3% xylanase enzyme recoveries from fungal broth at reasonable flux with turbidity rejection of 94.8 and 95.7% respectively.

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