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Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation

The influence of oil emulsion presence in the water on the course of water desalination by membrane distillation was studied. The feed water was contaminated by oil collected from the bilge water. The impact of feed composition on the wetting resistance of hydrophobic polypropylene membranes was eva...

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Autor principal: Gryta, Marek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400933/
https://www.ncbi.nlm.nih.gov/pubmed/34436315
http://dx.doi.org/10.3390/membranes11080552
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author Gryta, Marek
author_facet Gryta, Marek
author_sort Gryta, Marek
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description The influence of oil emulsion presence in the water on the course of water desalination by membrane distillation was studied. The feed water was contaminated by oil collected from the bilge water. The impact of feed composition on the wetting resistance of hydrophobic polypropylene membranes was evaluated during long-term studies. Two types of the capillary membranes fabricated by thermally induced phase separation method were tested. It has been found that these membranes were non-wetted during the separation of NaCl solutions over a period of 500 h of modules exploitation. The addition of oil (5–100 mg/L) to the feed caused a progressive decline of the permeate flux up to 30%; however, the applied hydrophobic membranes retained their non-wettability for the consecutive 2400 h of the process operation. It was indicated that several compounds containing the carbonyl group were formed on the membranes surface during the process. These hydrophilic compounds facilitated the water adsorption on the surface of polypropylene which restricted the oil deposition on the membranes used.
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spelling pubmed-84009332021-08-29 Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation Gryta, Marek Membranes (Basel) Article The influence of oil emulsion presence in the water on the course of water desalination by membrane distillation was studied. The feed water was contaminated by oil collected from the bilge water. The impact of feed composition on the wetting resistance of hydrophobic polypropylene membranes was evaluated during long-term studies. Two types of the capillary membranes fabricated by thermally induced phase separation method were tested. It has been found that these membranes were non-wetted during the separation of NaCl solutions over a period of 500 h of modules exploitation. The addition of oil (5–100 mg/L) to the feed caused a progressive decline of the permeate flux up to 30%; however, the applied hydrophobic membranes retained their non-wettability for the consecutive 2400 h of the process operation. It was indicated that several compounds containing the carbonyl group were formed on the membranes surface during the process. These hydrophilic compounds facilitated the water adsorption on the surface of polypropylene which restricted the oil deposition on the membranes used. MDPI 2021-07-22 /pmc/articles/PMC8400933/ /pubmed/34436315 http://dx.doi.org/10.3390/membranes11080552 Text en © 2021 by the author. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gryta, Marek
Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title_full Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title_fullStr Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title_full_unstemmed Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title_short Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
title_sort resistance of polypropylene membrane to oil fouling during membrane distillation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400933/
https://www.ncbi.nlm.nih.gov/pubmed/34436315
http://dx.doi.org/10.3390/membranes11080552
work_keys_str_mv AT grytamarek resistanceofpolypropylenemembranetooilfoulingduringmembranedistillation