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Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane

Jinhee Choi, Wooyeol Choi, Hyunjung Kim, Aamir Alaud-din, Kyung Hwa Cho, Joon Ha Kim, Hyuk Lim, Robert Lovitt, In Seop Chang

Anal. Methods, Volume: 6, Issue: 4, Pages: 993 - 1000

Swansea University Author: Robert Lovitt

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DOI (Published version): 10.1039/C3AY40870A

Abstract

Biofouling is a crucial issue, and it causes seawater reverse osmosis membrane to deteriorate the performance of desalination. In this study, excitation emission matrix (EEM) fluorescence spectroscopy and parallel factor analysis (PARAFAC) were used to monitor the strength of biofouling on the foule...

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Published in: Anal. Methods
ISSN: 1759-9679
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa28947
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spelling 2016-08-04T12:08:50.4274527 v2 28947 2016-06-17 Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane 130c3c35f45826bb0f4836305e8e51c7 Robert Lovitt Robert Lovitt true false 2016-06-17 FGSEN Biofouling is a crucial issue, and it causes seawater reverse osmosis membrane to deteriorate the performance of desalination. In this study, excitation emission matrix (EEM) fluorescence spectroscopy and parallel factor analysis (PARAFAC) were used to monitor the strength of biofouling on the fouled membrane which was obtained from real plant. Based on EEM and PARAFAC results of raw seawater, feed water, permeate, brine and fouled membrane, three components were identified as the major peaks: (1) microbial product-like materials at Ex/Em = 280/370 nm, (2) humic-like substances at Ex/Em = 330/420 nm, and (3) aromatic proteins at Ex/Em = 240/320 nm. Using the fluorescence intensity changes, the effects of replacing fouled RO membranes were found to be most significant at one of the components (Ex/Em = 270–300/350–380 nm) which could be considered the substances desorbed from fouled RO membrane. Compared to the data for salt rejection, this component monitoring of the brine EEM image is shown to be more sensitive than conductivity monitoring for predicting the biofouling strength during the desalination process. Journal Article Anal. Methods 6 4 993 1000 1759-9679 31 12 2014 2014-12-31 10.1039/C3AY40870A COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2016-08-04T12:08:50.4274527 2016-06-17T14:36:41.8831093 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Jinhee Choi 1 Wooyeol Choi 2 Hyunjung Kim 3 Aamir Alaud-din 4 Kyung Hwa Cho 5 Joon Ha Kim 6 Hyuk Lim 7 Robert Lovitt 8 In Seop Chang 9
title Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
spellingShingle Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
Robert Lovitt
title_short Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
title_full Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
title_fullStr Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
title_full_unstemmed Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
title_sort Fluorescence imaging for biofoulants detection and monitoring of biofouled strength in reverse osmosis membrane
author_id_str_mv 130c3c35f45826bb0f4836305e8e51c7
author_id_fullname_str_mv 130c3c35f45826bb0f4836305e8e51c7_***_Robert Lovitt
author Robert Lovitt
author2 Jinhee Choi
Wooyeol Choi
Hyunjung Kim
Aamir Alaud-din
Kyung Hwa Cho
Joon Ha Kim
Hyuk Lim
Robert Lovitt
In Seop Chang
format Journal article
container_title Anal. Methods
container_volume 6
container_issue 4
container_start_page 993
publishDate 2014
institution Swansea University
issn 1759-9679
doi_str_mv 10.1039/C3AY40870A
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description Biofouling is a crucial issue, and it causes seawater reverse osmosis membrane to deteriorate the performance of desalination. In this study, excitation emission matrix (EEM) fluorescence spectroscopy and parallel factor analysis (PARAFAC) were used to monitor the strength of biofouling on the fouled membrane which was obtained from real plant. Based on EEM and PARAFAC results of raw seawater, feed water, permeate, brine and fouled membrane, three components were identified as the major peaks: (1) microbial product-like materials at Ex/Em = 280/370 nm, (2) humic-like substances at Ex/Em = 330/420 nm, and (3) aromatic proteins at Ex/Em = 240/320 nm. Using the fluorescence intensity changes, the effects of replacing fouled RO membranes were found to be most significant at one of the components (Ex/Em = 270–300/350–380 nm) which could be considered the substances desorbed from fouled RO membrane. Compared to the data for salt rejection, this component monitoring of the brine EEM image is shown to be more sensitive than conductivity monitoring for predicting the biofouling strength during the desalination process.
published_date 2014-12-31T03:35:18Z
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score 11.013731