Preparation of poly(vinyl chloride) (PVC) ultrafiltration membranes from PVC/additive/solvent and application of UF membranes as substrate for fabrication of reverse osmosis membranes

2018 ◽  
Vol 135 (21) ◽  
pp. 46267 ◽  
Author(s):  
Behnam Sabzi Dizajikan ◽  
Mahdieh Asadollahi ◽  
Seyyed Abbas Musavi ◽  
Dariush Bastani
Keyword(s):  
Reverse Osmosis ◽  
Vinyl Chloride ◽  
Ultrafiltration Membranes ◽  
Poly Vinyl Chloride ◽  
Uf Membranes ◽  
Reverse Osmosis Membranes

pH‐dependent property of carboxyl‐based ultrafiltration membranes fabricated from poly(vinyl chloride‐ r ‐acrylic acid)

2018 ◽  
Vol 136 (7) ◽  
pp. 47068 ◽  
Author(s):  
N.‐C. Wang ◽  
L.‐F. Fang ◽  
J. Wang ◽  
P. Zhang ◽  
W.‐B. Wang ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Vinyl Chloride ◽  
Ultrafiltration Membranes ◽  
Poly Vinyl Chloride ◽  
Dependent Property ◽  
Ph Dependent

Preparation and characterization of poly(vinyl chloride)/polystyrene/poly(ethylene glycol) hollow-fiber ultrafiltration membranes

2013 ◽  
Vol 130 (2) ◽  
pp. 989-1004 ◽  
Author(s):  
Qusay Alsalhy ◽  
Amil Merza ◽  
Khalid Rashid ◽  
Arman Adam ◽  
Alberto Figoli ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Vinyl Chloride ◽  
Hollow Fiber ◽  
Poly Ethylene Glycol ◽  
Ultrafiltration Membranes ◽  
Poly Vinyl Chloride ◽  
Poly Ethylene

Flux improvement, rejection, surface energy and antibacterial properties of synthesized TiO2-Mo.HNTs/PVC nanocomposite ultrafiltration membranes

2017 ◽  
Vol 41 (24) ◽  
pp. 15049-15057 ◽  
Author(s):  
Gourav Mishra ◽  
Mausumi Mukhopadhyay
Keyword(s):  
Titanium Dioxide ◽  
Water Treatment ◽  
Surface Energy ◽  
Vinyl Chloride ◽  
Antibacterial Properties ◽  
Ultrafiltration Membranes ◽  
Poly Vinyl Chloride

The present work demonstrates the preparation of modified halloysite loaded with titanium dioxide (TiO2) nanoparticles and its use as a nanofiller in a poly(vinyl chloride) (PVC) hybrid ultrafiltration (UF) membrane for advanced water treatment.

Efficacy of Sanitizers Using Unsoiled Spiral-Wound Polysulfone Ultrafiltration Membranes1

1987 ◽  
Vol 50 (7) ◽  
pp. 567-572 ◽  
Author(s):  
KAREN E. SMITH ◽  
R. L. BRADLEY
Keyword(s):  
Stainless Steel ◽  
Reverse Osmosis ◽  
Anionic Surfactant ◽  
Soil Removal ◽  
Dairy Industry ◽  
Permeate Flux ◽  
Ultrafiltration Membranes ◽  
Microbiological Criteria ◽  
Steel Surfaces ◽  
Reverse Osmosis Membranes

Sanitizing ultrafiltration and reverse osmosis systems poses unique problems for the dairy industry. Ultrafiltration and reverse osmosis membranes must be held wet and microorganisms remaining within the system could multiply under these conditions unless the holding solution is sufficiently microstatic. Two polysulfone ultrafiltration membranes as obtained from the manufacturer were used to evaluate cleaners and sanitizers. Because these membranes had not been used for processing there were no soil removal problems to interfere with sanitization. The ultrafiltration system was sanitized by recycling solutions for 10 min, and the unit containing sanitizer left idle 16 h. Stainless steel surfaces were examined by swabbing the next morning to check hygiene. Antibac B (50 ppm available chlorine), H2O2 (0.2%, v/v) and an acid anionic surfactant (pH 2.5) were evaluated as sanitizers. None proved satisfactory based on microbiological criteria. Also, there was a loss in available chlorine from Antibac B solutions when held overnight in the retentate housing. These same problems were evident when sanitizers were circulated after cleaning solutions. Permeate flux, when used as a criterion for system cleanliness, indicated adequate cleaning and sanitization. Inability to contact all areas of membranes may be a problem in satisfactory sanitization of an ultrafiltration system.

Sign in / Sign up

Export Citation Format

Share Document