Cargando…

Membrane Distillation of Saline Water Contaminated with Oil and Surfactants

Application of the membrane distillation (MD) process for the treatment of high-salinity solutions contaminated with oil and surfactants represents an interesting area of research. Therefore, the aim of this study is to investigate the effect of low-concentration surfactants in oil-contaminated high...

Descripción completa

Detalles Bibliográficos
Autores principales: Tomczak, Wirginia, Gryta, Marek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708787/
https://www.ncbi.nlm.nih.gov/pubmed/34940489
http://dx.doi.org/10.3390/membranes11120988
_version_ 1784622773173223424
author Tomczak, Wirginia
Gryta, Marek
author_facet Tomczak, Wirginia
Gryta, Marek
author_sort Tomczak, Wirginia
collection PubMed
description Application of the membrane distillation (MD) process for the treatment of high-salinity solutions contaminated with oil and surfactants represents an interesting area of research. Therefore, the aim of this study is to investigate the effect of low-concentration surfactants in oil-contaminated high-salinity solutions on the MD process efficiency. For this purpose, hydrophobic capillary polypropylene (PP) membranes were tested during the long-term MD studies. Baltic Sea water and concentrated NaCl solutions were used as a feed. The feed water was contaminated with oil collected from bilge water and sodium dodecyl sulphate (SDS). It has been demonstrated that PP membranes were non-wetted during the separation of pure NaCl solutions over 960 h of the module exploitation. The presence of oil (100–150 mg/L) in concentrated NaCl solutions caused the adsorption of oil on the membranes surface and a decrease in the permeate flux of 30%. In turn, the presence of SDS (1.5–2.5 mg/L) in the oil-contaminated high-salinity solutions slightly accelerated the phenomenon of membrane wetting. The partial pores’ wetting accelerated the internal scaling and affected degradation of the membrane’s structure. Undoubtedly, the results obtained in the present study may have important implications for understanding the effect of low-concentration SDS on MD process efficiency.
format Online
Article
Text
id pubmed-8708787
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-87087872021-12-25 Membrane Distillation of Saline Water Contaminated with Oil and Surfactants Tomczak, Wirginia Gryta, Marek Membranes (Basel) Article Application of the membrane distillation (MD) process for the treatment of high-salinity solutions contaminated with oil and surfactants represents an interesting area of research. Therefore, the aim of this study is to investigate the effect of low-concentration surfactants in oil-contaminated high-salinity solutions on the MD process efficiency. For this purpose, hydrophobic capillary polypropylene (PP) membranes were tested during the long-term MD studies. Baltic Sea water and concentrated NaCl solutions were used as a feed. The feed water was contaminated with oil collected from bilge water and sodium dodecyl sulphate (SDS). It has been demonstrated that PP membranes were non-wetted during the separation of pure NaCl solutions over 960 h of the module exploitation. The presence of oil (100–150 mg/L) in concentrated NaCl solutions caused the adsorption of oil on the membranes surface and a decrease in the permeate flux of 30%. In turn, the presence of SDS (1.5–2.5 mg/L) in the oil-contaminated high-salinity solutions slightly accelerated the phenomenon of membrane wetting. The partial pores’ wetting accelerated the internal scaling and affected degradation of the membrane’s structure. Undoubtedly, the results obtained in the present study may have important implications for understanding the effect of low-concentration SDS on MD process efficiency. MDPI 2021-12-17 /pmc/articles/PMC8708787/ /pubmed/34940489 http://dx.doi.org/10.3390/membranes11120988 Text en © 2021 by the authors. 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
Tomczak, Wirginia
Gryta, Marek
Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title_full Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title_fullStr Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title_full_unstemmed Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title_short Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
title_sort membrane distillation of saline water contaminated with oil and surfactants
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708787/
https://www.ncbi.nlm.nih.gov/pubmed/34940489
http://dx.doi.org/10.3390/membranes11120988
work_keys_str_mv AT tomczakwirginia membranedistillationofsalinewatercontaminatedwithoilandsurfactants
AT grytamarek membranedistillationofsalinewatercontaminatedwithoilandsurfactants