A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water Recovery from Highly Saline Dye Wastewater by Membrane Distillation Using a Superhydrophobic SiO2/PVDF Membrane
https://orcid.org/0000-0003-4054-948X
https://orcid.org/0000-0002-7727-6676
https://orcid.org/0000-0003-3832-3705
Membrane distillation (MD) has been widely used for resource recovery from high-salinity wastewater, due to its superior technical merits of high separation efficiency and potential integration of low-grade heat. Herein, a robust superhydrophobic PVDF membrane prepared by spray-coating of fluorinated silica nanoparticles was employed to treat highly saline dye wastewater by MD. Specifically, impacts of operation conditions, including temperature difference, feed flow-rate, salinity, dye concentration, and dye species, on MD performance of the fabricated superhydrophobic PVDF membrane were comprehensively investigated. The increase of temperature difference and feed flow-rate had a positive effect on the MD flux of the membrane. Conversely, the rise in salinity and dye concentration induced an adverse impact on the MD flux. Furthermore, the superhydrophobic PVDF membrane showed a strong robustness in treating complex streams, as demonstrated by consistently stable MD flux using various dye/NaCl mixed solutions. Due to the robust surface superhydrophobicity, the fabricated PVDF membrane exhibited impressive antiwetting and antifouling properties against highly saline dye wastewater, consistently stable permeation flux, and high dye/salt removal efficiency (>99.99%). Moreover, the superhydrophobic membrane showed a high water recovery (90%) from highly saline dye wastewater with a slight reduction (13.4%) in permeation flux during a 39 h MD filtration. These results signify the promising practicability of the fabricated superhydrophobic PVDF membrane in sustainable management of highly saline dye wastewater via MD.
A superhydrophobic PVDF membrane fabricated by spray-coating of fluorinated SiO2 nanoparticles effectively repels the dye and salt species for robust membrane distillation application with impressive antiwetting and antifouling properties, showing a great potential in sustainable water recovery from highly saline textile wastewater.
Water Recovery from Highly Saline Dye Wastewater by Membrane Distillation Using a Superhydrophobic SiO2/PVDF Membrane
https://orcid.org/0000-0003-4054-948X
https://orcid.org/0000-0002-7727-6676
https://orcid.org/0000-0003-3832-3705
Membrane distillation (MD) has been widely used for resource recovery from high-salinity wastewater, due to its superior technical merits of high separation efficiency and potential integration of low-grade heat. Herein, a robust superhydrophobic PVDF membrane prepared by spray-coating of fluorinated silica nanoparticles was employed to treat highly saline dye wastewater by MD. Specifically, impacts of operation conditions, including temperature difference, feed flow-rate, salinity, dye concentration, and dye species, on MD performance of the fabricated superhydrophobic PVDF membrane were comprehensively investigated. The increase of temperature difference and feed flow-rate had a positive effect on the MD flux of the membrane. Conversely, the rise in salinity and dye concentration induced an adverse impact on the MD flux. Furthermore, the superhydrophobic PVDF membrane showed a strong robustness in treating complex streams, as demonstrated by consistently stable MD flux using various dye/NaCl mixed solutions. Due to the robust surface superhydrophobicity, the fabricated PVDF membrane exhibited impressive antiwetting and antifouling properties against highly saline dye wastewater, consistently stable permeation flux, and high dye/salt removal efficiency (>99.99%). Moreover, the superhydrophobic membrane showed a high water recovery (90%) from highly saline dye wastewater with a slight reduction (13.4%) in permeation flux during a 39 h MD filtration. These results signify the promising practicability of the fabricated superhydrophobic PVDF membrane in sustainable management of highly saline dye wastewater via MD.
A superhydrophobic PVDF membrane fabricated by spray-coating of fluorinated SiO2 nanoparticles effectively repels the dye and salt species for robust membrane distillation application with impressive antiwetting and antifouling properties, showing a great potential in sustainable water recovery from highly saline textile wastewater.
Water Recovery from Highly Saline Dye Wastewater by Membrane Distillation Using a Superhydrophobic SiO2/PVDF Membrane
https://orcid.org/0000-0003-4054-948X
https://orcid.org/0000-0002-7727-6676
https://orcid.org/0000-0003-3832-3705
Membrane distillation (MD) has been widely used for resource recovery from high-salinity wastewater, due to its superior technical merits of high separation efficiency and potential integration of low-grade heat. Herein, a robust superhydrophobic PVDF membrane prepared by spray-coating of fluorinated silica nanoparticles was employed to treat highly saline dye wastewater by MD. Specifically, impacts of operation conditions, including temperature difference, feed flow-rate, salinity, dye concentration, and dye species, on MD performance of the fabricated superhydrophobic PVDF membrane were comprehensively investigated. The increase of temperature difference and feed flow-rate had a positive effect on the MD flux of the membrane. Conversely, the rise in salinity and dye concentration induced an adverse impact on the MD flux. Furthermore, the superhydrophobic PVDF membrane showed a strong robustness in treating complex streams, as demonstrated by consistently stable MD flux using various dye/NaCl mixed solutions. Due to the robust surface superhydrophobicity, the fabricated PVDF membrane exhibited impressive antiwetting and antifouling properties against highly saline dye wastewater, consistently stable permeation flux, and high dye/salt removal efficiency (>99.99%). Moreover, the superhydrophobic membrane showed a high water recovery (90%) from highly saline dye wastewater with a slight reduction (13.4%) in permeation flux during a 39 h MD filtration. These results signify the promising practicability of the fabricated superhydrophobic PVDF membrane in sustainable management of highly saline dye wastewater via MD.
A superhydrophobic PVDF membrane fabricated by spray-coating of fluorinated SiO2 nanoparticles effectively repels the dye and salt species for robust membrane distillation application with impressive antiwetting and antifouling properties, showing a great potential in sustainable water recovery from highly saline textile wastewater.
Water Recovery from Highly Saline Dye Wastewater by Membrane Distillation Using a Superhydrophobic SiO2/PVDF Membrane
Xie, Shuangling (author) / Du, Jiale (author) / Huang, Xuan (author) / Gu, Ailiang (author) / Fang, Shengqiong (author) / Liu, Riri (author) / Zou, Dong (author) / Lin, Jiuyang (author) / Xie, Ming (author) / Zhao, Shuaifei (author)
ACS ES&T Water ; 3 ; 1893-1901
2023-07-14
Article (Journal)
Electronic Resource
English
| American Chemical Society | 2024
Direct contact membrane distillation of saline wastewater for recycling
| UB Braunschweig | 2019