Removal of reactive dye from textile effluent through submerged filtration using hollow fiber composite nanofiltlration membrane

2013 ◽  
Vol 51 (31-33) ◽  
pp. 6101-6109 ◽  
Author(s):  
Xueyan Zhu ◽  
Yinping Zheng ◽  
Ze Chen ◽  
Qing Chen ◽  
Bijuan Gao ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Fiber Composite ◽  
Reactive Dye ◽  
Textile Effluent

Hollow fiber composite membrane modules for reverse osmosis

Desalination ◽  
1977 ◽  
Vol 22 (1-3) ◽  
pp. 221-227 ◽  
Author(s):  
R.B. Davis ◽  
R.D. Burchesky ◽  
M.J. Coplan
Keyword(s):  
Reverse Osmosis ◽  
Composite Membrane ◽  
Hollow Fiber ◽  
Fiber Composite ◽  
Hollow Fiber Composite Membrane ◽  
Membrane Modules

Removal of high concentration Congo red by hydrophobic PVDF hollow fiber composite membrane coated with a loose and porous ZIF-71PVDF layer through vacuum membrane distillation

2020 ◽  
pp. 152808372096707
Author(s):  
Hongbin Li ◽  
Wenying Shi ◽  
Qiyun Du ◽  
Shoufa Huang ◽  
Haixia Zhang ◽  
...  
Keyword(s):  
Flow Rate ◽  
Hollow Fiber ◽  
Congo Red ◽  
Fiber Composite ◽  
Water Flux ◽  
Membrane Distillation ◽  
Feed Flow Rate ◽  
High Concentration ◽  
Operation Conditions ◽  
Feed Temperature

Although membrane distillation (MD) technology has the outstanding advantages of almost 100% solute retention and mild operation conditions, its further development is limited by low permeate flux. In order to solve the problem, the improvement of membrane hydrophobicity becomes one of the effective solutions. In this study, a loose and porous hydrophobic zeolitic imidazolate frameworks-71 (ZIF-71)/polyvinylidene fluoride (PVDF) coating layer was composited on the outside surface of PVDF hollow fiber support membrane by the dilute solution coating to enhance membrane hydrophobicity. The prepared hollow fiber composite (HFC) membranes were employed to remove high concentration Congo red (CR) through VMD. The effects of different operation conditions including the dye concentration, feed temperature, vacuum pressure and feed flow rate on CR rejection and permeate water flux were investigated. In the variation range of operating conditions, all the CR rejection of the PVDF HFC membranes shows a slight change and remains above 99.9%. Under the optimal operation conditions including dye concentration 600 mg·L−1, vacuum pressure 31.325 kPa, feed temperature 60°C and feed flow rate 50 L·h−1, HFC membrane exhibit a permeate water flux of 13.15 kg·m−2·h−1. HFC membrane suffers dye fouling during the continuous dye filtration for 100 h. The fouling mechanism was proposed and a combined cleaning way including forward washing, back flushing and chemical desorption has been proved to be effective in recovering membrane water flux.

Modified poly(vinylidene fluoride) hollow fiber composite membranes reinforced by hydroxyapatite nanocrystal whiskers

2012 ◽  
Vol 127 (6) ◽  
pp. 4564-4572 ◽  
Author(s):  
Wan-Zhong Lang ◽  
Qin Ji ◽  
Jian-Ping Shen ◽  
Ya-Jun Guo ◽  
Lian-Feng Chu
Keyword(s):  
Hollow Fiber ◽  
Vinylidene Fluoride ◽  
Fiber Composite ◽  
Composite Membranes ◽  
Poly Vinylidene Fluoride

High solvent resistance PTFPMS/PEI hollow fiber composite membrane for gas separation

2016 ◽  
Vol 360 ◽  
pp. 164-173 ◽  
Author(s):  
Yan Dai ◽  
Xuehua Ruan ◽  
Feng Bai ◽  
Miao Yu ◽  
Hao Li ◽  
...  
Keyword(s):  
Gas Separation ◽  
Composite Membrane ◽  
Hollow Fiber ◽  
Fiber Composite ◽  
Solvent Resistance ◽  
Hollow Fiber Composite Membrane
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