Membrane contactors for the oxygen and pH control in desalination

Criscuoli, A.; Carnevale, M.C.; Mahmoudi, Hacène; Gaeta, Soccorso; Lentini, F.; Drioli, Enrico

doi:10.1016/j.memsci.2011.04.018

Cited by 12 publications

(3 citation statements)

References 10 publications

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“…To the best of our knowledge, hardly any information is available for membrane de-aeration dealing with solutions containing salts, especially at high salt content. Only Criscuoli et al [21] have presented limited information on lab-scale membrane de-aeration of salt solutions. Their study focused on the performance of the membrane contactor for oxygen concentration and pH control of the water (permeate) produced in a reverse osmosis desalination plant.…”

Section: Introductionmentioning

confidence: 99%

“…Both solutions contained sodium chloride concentrations below 65 g/L. Despite the first interesting results presented by Criscuoli et al [21], a systematic evaluation of the effect of salt concentration on oxygen mass transfer in membrane degassers is not available, whereas this is essential for scaling-up of membrane degassers and application of the technology in commercial practice.…”

Section: Introductionmentioning

confidence: 99%

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Membrane contactors: An alternative for de-aeration of salt solutions?

Kattan

Ebbers

Koolaard

et al. 2018

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Membrane contactors: An alternative for de-aeration of salt solutions?

Kattan

Ebbers

Koolaard

et al. 2018

Separation and Purification Technology

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“…Nowadays, membrane separation technology is rapidly emerging as an energy efficient and environmentally friendly technology. Progress in membrane modules has provided an attractive alternative for dissolved gases removal in water . Membrane degassing is a new type of liquid–gas membrane separation processes that mergers membrane separation and gas removal technologies .…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of hydrophobic poly(vinylidene fluoride)–SiO₂ mixed matrix membranes for dissolved oxygen removal from water

Luo

2014

J of Applied Polymer Sci

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The application of the membrane method for removing dissolved oxygen (DO) from water on the laboratory scale was studied. Flat mixed matrix membranes were composed of poly(vinylidene fluoride) (PVDF) and hydrophobic nanosilica particles, which were used to improve the DO removal process. The SiO 2 particles were modified by a silane coupling agent and examined by Fourier transform infrared spectroscopy. It was shown that the surface of the SiO 2 particles was bonded to hydrophobic longchain alkane groups through chemical bonding. The effects of adding SiO 2 particles on the membrane properties and morphology were examined. The results show that the porosity and pore size of the membrane were affected by the introduction of SiO 2 particles, and the cross-sectional morphology of the PVDF composite membranes changed from fingerlike macrovoids to a spongelike structure. The membrane performance of DO removal was evaluated through the membrane unit by a vacuum degassing process. It was found that the SiO 2 /PVDF hybrid membranes effectively improved the oxygen removal efficiency compared with the original PVDF membranes. The maximum permeation flux was obtained when the loading amount was 2.5 wt %. The effect of the downstream vacuum level was also investigated. The experimental results show that the SiO 2 /PVDF hybrid membranes had superior performances and could be an alternative membrane for removing DO from water.

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