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Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes

In this work, three different types of Reverse Osmosis (RO) (Thin-Film Composite (SE), Cellulose Acetate (CE), and Polyamide (AD)) were used to perform foulant analysis (autopsy) study on the deposited materials from three different simulated brackish surface feed waters. The brackish surface water...

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Autores principales: Sachit, Dawood Eisa, Veenstra, John N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5489857/
https://www.ncbi.nlm.nih.gov/pubmed/28406468
http://dx.doi.org/10.3390/membranes7020023
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author Sachit, Dawood Eisa
Veenstra, John N.
author_facet Sachit, Dawood Eisa
Veenstra, John N.
author_sort Sachit, Dawood Eisa
collection PubMed
description In this work, three different types of Reverse Osmosis (RO) (Thin-Film Composite (SE), Cellulose Acetate (CE), and Polyamide (AD)) were used to perform foulant analysis (autopsy) study on the deposited materials from three different simulated brackish surface feed waters. The brackish surface water qualities represented the water quality in Iraqi marshes. The main foulants from the simulated feed waters were characterized by using Scanning Electron Microscope (SEM) images and Energy-Dispersive X-ray Spectroscopy (EDXS) spectra. The effect of feed water temperatures (37 °C and 11 °C) on the formation of the fouled material deposited on the membrane surface was examined in this study. Also, pretreatment by a 0.1 micron microfiltration (MF) membrane of the simulated feed water in advance of the RO membrane on the precipitated material on the membrane surface was investigated. Finally, Fourier Transform Infrared Spectroscopy (FTIR) analysis was used to identify the functional groups of the organic matter deposited on the RO membrane surfaces. The SEM images and EDSX spectra suggested that the fouled material was mainly organic matter, and the major crystal deposited on the RO membrane was calcium carbonate (CaCO(3)). The FTIR spectra of the fouled RO membranes suggested that the constituents of the fouled material included aliphatic and aromatic compounds.
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spelling pubmed-54898572017-06-30 Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes Sachit, Dawood Eisa Veenstra, John N. Membranes (Basel) Article In this work, three different types of Reverse Osmosis (RO) (Thin-Film Composite (SE), Cellulose Acetate (CE), and Polyamide (AD)) were used to perform foulant analysis (autopsy) study on the deposited materials from three different simulated brackish surface feed waters. The brackish surface water qualities represented the water quality in Iraqi marshes. The main foulants from the simulated feed waters were characterized by using Scanning Electron Microscope (SEM) images and Energy-Dispersive X-ray Spectroscopy (EDXS) spectra. The effect of feed water temperatures (37 °C and 11 °C) on the formation of the fouled material deposited on the membrane surface was examined in this study. Also, pretreatment by a 0.1 micron microfiltration (MF) membrane of the simulated feed water in advance of the RO membrane on the precipitated material on the membrane surface was investigated. Finally, Fourier Transform Infrared Spectroscopy (FTIR) analysis was used to identify the functional groups of the organic matter deposited on the RO membrane surfaces. The SEM images and EDSX spectra suggested that the fouled material was mainly organic matter, and the major crystal deposited on the RO membrane was calcium carbonate (CaCO(3)). The FTIR spectra of the fouled RO membranes suggested that the constituents of the fouled material included aliphatic and aromatic compounds. MDPI 2017-04-13 /pmc/articles/PMC5489857/ /pubmed/28406468 http://dx.doi.org/10.3390/membranes7020023 Text en © 2017 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sachit, Dawood Eisa
Veenstra, John N.
Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title_full Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title_fullStr Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title_full_unstemmed Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title_short Foulant Analysis of Three RO Membranes Used in Treating Simulated Brackish Water of the Iraqi Marshes
title_sort foulant analysis of three ro membranes used in treating simulated brackish water of the iraqi marshes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5489857/
https://www.ncbi.nlm.nih.gov/pubmed/28406468
http://dx.doi.org/10.3390/membranes7020023
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