scholarly journals Textile dye wastewater treatment by direct contact membrane distillation: Membrane performance and detailed fouling analysis

2021 ◽  
pp. 119552
Author(s):  
Luca Fortunato ◽  
Harun Elcik ◽  
Bastiaan Blankert ◽  
Noreddine Ghaffour ◽  
Johannes Vrouwenvelder
Keyword(s):  
Wastewater Treatment ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Membrane Performance ◽  
Direct Contact Membrane Distillation

scholarly journals Mechanical Vibration for the Control of Membrane Fouling in Direct Contact Membrane Distillation

Symmetry ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 126 ◽  
Author(s):  
Frank Huang ◽  
Carolyn Medin ◽  
Allie Arning
Keyword(s):  
Packing Density ◽  
Membrane Fouling ◽  
Direct Contact ◽  
Mechanical Vibration ◽  
Water Flux ◽  
Similar Rate ◽  
Membrane Distillation ◽  
Membrane Performance ◽  
Direct Contact Membrane Distillation ◽  
Flux Decline

One of the biggest challenges for direct contact membrane distillation (DCMD) in treating wastewater from flue gas desulfurization (FGD) is the rapid deterioration of membrane performance resulting from precipitate fouling. Chemical pretreatment, such as lime-soda ash softening, has been used to mitigate the issue, however, with significant operating costs. In this study, mechanical vibration of 42.5 Hz was applied to lab-scale DCMD systems to determine its effectiveness of fouling control for simulated FGD water. Liquid entry pressure and mass transfer limit of the fabricated hollow fiber membranes were determined and used as the operational constraints in the fouling experiments so that the observed membrane performance was influenced solely by precipitate fouling. Minimal improvement of water flux was observed when applying vibration after significant (~16%) water-flux decline. Initiating vibration at the onset of the experiments prior to the exposure of foulants, however, was promising for the reduction of membrane fouling. The water-flux decline rate was reduced by about 50% when compared to the rate observed without vibration. Increasing the module packing density from 16% to 50% resulted in a similar rate of water-flux decline, indicating that the fouling propensity was not increased with packing density in the presence of vibration.

Integrated direct contact membrane distillation for olive mill wastewater treatment

Desalination ◽  
2013 ◽  
Vol 323 ◽  
pp. 31-38 ◽  
Author(s):  
A. El-Abbassi ◽  
A. Hafidi ◽  
M. Khayet ◽  
M.C. García-Payo
Keyword(s):  
Wastewater Treatment ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Olive Mill Wastewater ◽  
Direct Contact Membrane Distillation ◽  
Olive Mill

A novel profiled core–shell nanofibrous membrane for wastewater treatment by direct contact membrane distillation

2016 ◽  
Vol 4 (37) ◽  
pp. 14453-14463 ◽  
Author(s):  
Xiong Li ◽  
Li Deng ◽  
Xufeng Yu ◽  
Min Wang ◽  
Xuefen Wang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Nanofibrous Membrane ◽  
Core Shell ◽  
Direct Contact Membrane Distillation

A novel profiled PAN-PS core–shell electrospun nanofibrous membrane with peculiar groove structures for wastewater treatment by direct contact membrane distillation.

Sign in / Sign up

Export Citation Format

Share Document