Enhanced abrasion resistant PVDF/nanoclay hollow fibre composite membranes for water treatment

2014 ◽  
Vol 449 ◽  
pp. 146-157 ◽  
Author(s):  
Chi Yan Lai ◽  
Andrew Groth ◽  
Stephen Gray ◽  
Mikel Duke
Keyword(s):  
Water Treatment ◽  
Fibre Composite ◽  
Composite Membranes ◽  
Hollow Fibre

scholarly journals Preparation and Characterization of Polysulfone Based Hollow Fibre Composite Membranes for Water Purification

2018 ◽  
Vol 22 (2) ◽  
Author(s):  
A. M. Vijesh ◽  
P. C. Shyma ◽  
V. Prakash ◽  
B. Garudachari
Keyword(s):  
Fibre Composite ◽  
Membrane Surface ◽  
Pure Water ◽  
Water Flux ◽  
Composite Membranes ◽  
Hollow Fibre ◽  
Water Contact ◽  
Cross Flow Filtration ◽  
Phase Inversion Technique ◽  
Pure Water Flux

Nanofiltration membranes are gaining more importance in the field of water treatment especially in desalination plants. Hollow fibre membranes have been preferred over other membrane configurations due to their high membrane surface area to module volume, mechanical property and easy handling. In the present work, we prepared new type of polysulfone (PSf) composite hollow fibre membranes by blending PSf with polyvinylpyrrolidinone-nitrobenzene (PVPD) in different compositions. New membranes were fabricated using wet-jet phase inversion technique. The resultant composite membranes were characterized by various analytical techniques such as water contact angle, SEM, DSC, TG. Pure water flux of the membranes was measured using cross-flow filtration techniques. The study revealed that increased composition of PVPD in casting solution resulted in a highly porous membrane structure and the pure water flux of the membranes increases in the same order.

Simple Scalable Fabrication of Laser-Induced Graphene Composite Membranes for Water Treatment

2021 ◽  
Vol 1 (4) ◽  
pp. 881-887
Author(s):  
Abhishek Gupta ◽  
Chetan Prakash Sharma ◽  
Christopher J. Arnusch
Keyword(s):  
Water Treatment ◽  
Composite Membranes ◽  
Graphene Composite

Composite Membranes with Cellulose Acetate Surface Layer for Water Treatment

2021 ◽  
Vol 12 (5) ◽  
pp. 1229-1235
Author(s):  
D. D. Fazullin ◽  
L. I. Fazullina ◽  
G. V. Mavrin ◽  
I. G. Shaikhiev ◽  
V. O. Dryakhlov
Keyword(s):  
Surface Layer ◽  
Water Treatment ◽  
Cellulose Acetate ◽  
Composite Membranes

scholarly journals Polyetherimide-Montmorillonite Nano-Hybrid Composite Membranes: CO2 Permeance Study via Theoretical Models

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 118
Author(s):  
Asif Jamil ◽  
Oh Pei Ching ◽  
Muhammad Naqvi ◽  
Hafiza Aroosa Aslam Khan ◽  
Salman Raza Naqvi
Keyword(s):  
Hybrid Composite ◽  
Composite Membranes ◽  
Theoretical Models ◽  
Hollow Fibre ◽  
Gas Permeation ◽  
Absolute Relative Error ◽  
Average Absolute Relative Error ◽  
Average Aspect Ratio ◽  
Dispersion State ◽  
Best Fit

The incorporation of aminolauric acid modified montmorillonite (f-MMT) in polyetherimide (PEI) has been implemented to develop hollow fibre nano-hybrid composite membranes (NHCMs) with improved gas separation characteristics. The aforementioned characteristics are caused by enhanced f-MMT spatial dispersion and interfacial interactions with PEI matrix. In this study, existing gas permeation models such as, Nielsen, Cussler, Yang–Cussler, Lape–Cussler and Bharadwaj were adopted to estimate the dispersion state of f-MMT and to predict the CO2 permeance in developed NHCMs. It was found out that the average aspect ratio estimated was 53, with 3 numbers of stacks per unit tactoid, which showed that the intercalation f-MMT morphology is the dominating dispersion state of filler in PEI matrix. Moreover, it was observed that Bharadwaj model showed the least average absolute relative error (%AARE) values till 3 wt. % f-MMT loading in the range of ±10 for a pressure range of 2 to 10 bar. Hence, Bharadwaj was the best fit model for the experimental data compared to other models, as it considers the platelets orientation.

scholarly journals Strategies in Forward Osmosis Membrane Substrate Fabrication and Modification: A Review

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 332 ◽  
Author(s):  
Nur Diyana Suzaimi ◽  
Pei Sean Goh ◽  
Ahmad Fauzi Ismail ◽  
Stanley Chinedu Mamah ◽  
Nik Ahmad Nizam Nik Malek ◽  
...  
Keyword(s):  
Water Treatment ◽  
Membrane Fouling ◽  
Forward Osmosis ◽  
Composite Membranes ◽  
High Energy ◽  
Future Perspective ◽  
Selective Layer ◽  
Long Duration ◽  
Selective Membrane ◽  
Separation Performances

Forward osmosis (FO) has been recognized as the preferred alternative membrane-based separation technology for conventional water treatment technologies due to its high energy efficiency and promising separation performances. FO has been widely explored in the fields of wastewater treatment, desalination, food industry and bio-products, and energy generation. The substrate of the typically used FO thin film composite membranes serves as a support for selective layer formation and can significantly affect the structural and physicochemical properties of the resultant selective layer. This signifies the importance of substrate exploration to fine-tune proper fabrication and modification in obtaining optimized substrate structure with regards to thickness, tortuosity, and porosity on the two sides. The ultimate goal of substrate modification is to obtain a thin and highly selective membrane with enhanced hydrophilicity, antifouling propensity, as well as long duration stability. This review focuses on the various strategies used for FO membrane substrate fabrication and modification. An overview of FO membranes is first presented. The extant strategies applied in FO membrane substrate fabrications and modifications in addition to efforts made to mitigate membrane fouling are extensively reviewed. Lastly, the future perspective regarding the strategies on different FO substrate layers in water treatment are highlighted.

scholarly journals A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

2018 ◽  
Vol 08 (01) ◽  
Author(s):  
Muhammad Zahid ◽  
Anum Rashid ◽  
Saba Akram ◽  
Zulfiqar Ahmad Rehan ◽  
Wasif Razzaq
Keyword(s):  
Water Treatment ◽  
Composite Membranes ◽  
Nano Composite ◽  
Comprehensive Review

A highly permeable hollow fibre substrate for Pd/Al2O3 composite membranes in hydrogen permeation

2015 ◽  
Vol 40 (8) ◽  
pp. 3249-3258 ◽  
Author(s):  
Ana Gouveia Gil ◽  
Miria Hespanhol M. Reis ◽  
David Chadwick ◽  
Zhentao Wu ◽  
K. Li
Keyword(s):  
Hydrogen Permeation ◽  
Composite Membranes ◽  
Hollow Fibre ◽  
Al2o3 Composite

Preparation of graphene oxide/silica hybrid composite membranes and performance studies in water treatment

2020 ◽  
Vol 55 (25) ◽  
pp. 11188-11202 ◽  
Author(s):  
Ying-chen Du ◽  
Lin-jun Huang ◽  
Yan-xin Wang ◽  
Kun Yang ◽  
Zhi-jie Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Performance Studies ◽  
Hybrid Composite ◽  
Composite Membranes ◽  
And Performance ◽  
Silica Hybrid

Improving CO2 permeability of ceramic hollow fibre-supported composite membranes by blending an ionic liquid in the Pebax/PEGDME selective layer

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2055-2064 ◽  
Author(s):  
Jun Cheng ◽  
Leiqing Hu ◽  
Yannan Li ◽  
Chaofan Ji ◽  
Junhu Zhou ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Composite Membrane ◽  
Composite Membranes ◽  
Hollow Fibre ◽  
Permeation Rate ◽  
Selective Layer

The ionic liquid [P66614][2-Op], with high CO2 capacity, was blended in the Pebax/PEGDME selective layer of the ceramic hollow fibre-supported composite membrane. CO2 permeation rate was improved by ~35% and high CO2/H2 selectivity was maintained.

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