Roughness and wettability of biofilm carriers: A systematic review

Since the 1980s, many studies have reported the importance of biofilm carrier roughness on microbial attachment. Roughness can enhance the wettability (hydrophobicity or hydrophilicity) of biofilm carriers. Roughness and wettability can lead to firmly attached biofilms with proper thickness communit...

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Main Authors: Al-Amshawee, Sajjad, Mohd Yusri, Mohd Yunus, Lynam, Joan G., Lee, Woo Hyoung, Dai, Fei, Dakhil, Ihsan Habib
Format: Article
Language:English
Published: Elsevier 2020
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/30456/
http://umpir.ump.edu.my/id/eprint/30456/1/Roughness%20and%20Wettability%20of%20Biofilm%20Carriers1.pdf
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author Al-Amshawee, Sajjad
Mohd Yusri, Mohd Yunus
Lynam, Joan G.
Lee, Woo Hyoung
Dai, Fei
Dakhil, Ihsan Habib
author_facet Al-Amshawee, Sajjad
Mohd Yusri, Mohd Yunus
Lynam, Joan G.
Lee, Woo Hyoung
Dai, Fei
Dakhil, Ihsan Habib
author_sort Al-Amshawee, Sajjad
building UMP Institutional Repository
collection Online Access
description Since the 1980s, many studies have reported the importance of biofilm carrier roughness on microbial attachment. Roughness can enhance the wettability (hydrophobicity or hydrophilicity) of biofilm carriers. Roughness and wettability can lead to firmly attached biofilms with proper thickness communities and can protect them from being detached. However, roughness and wettability have not been adequately defined and discussed with regard to biofilm activity. Also, there is a contradiction among literature reports on how wettability affects bacterial adhesion. This systematic review presents a discussion of these properties as they affect biofilm formation and stability. In addition, it critically reviews past developments that occurred to advance carrier properties. It was found that an effective biomass immobilization requires rough surfaces having edges, and peaks and valleys. These carrier surfaces need to be substantially less or more hydrophobic/hydrophilic than the suspended biomass. The difference in wettability is the driving force to determine the degree of interaction with bacteria. Rough and wetted surfaces ensure the initial adhesion of bacterial communities and provide robust protection from detachment. If roughness was inadequate and the carrier wettability range was close to that of the biomass, it would significantly destabilize the overall biofilm system performance and deteriorate biofilm attachment.
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spelling ump-304562021-01-08T08:52:47Z http://umpir.ump.edu.my/id/eprint/30456/ Roughness and wettability of biofilm carriers: A systematic review Al-Amshawee, Sajjad Mohd Yusri, Mohd Yunus Lynam, Joan G. Lee, Woo Hyoung Dai, Fei Dakhil, Ihsan Habib TP Chemical technology Since the 1980s, many studies have reported the importance of biofilm carrier roughness on microbial attachment. Roughness can enhance the wettability (hydrophobicity or hydrophilicity) of biofilm carriers. Roughness and wettability can lead to firmly attached biofilms with proper thickness communities and can protect them from being detached. However, roughness and wettability have not been adequately defined and discussed with regard to biofilm activity. Also, there is a contradiction among literature reports on how wettability affects bacterial adhesion. This systematic review presents a discussion of these properties as they affect biofilm formation and stability. In addition, it critically reviews past developments that occurred to advance carrier properties. It was found that an effective biomass immobilization requires rough surfaces having edges, and peaks and valleys. These carrier surfaces need to be substantially less or more hydrophobic/hydrophilic than the suspended biomass. The difference in wettability is the driving force to determine the degree of interaction with bacteria. Rough and wetted surfaces ensure the initial adhesion of bacterial communities and provide robust protection from detachment. If roughness was inadequate and the carrier wettability range was close to that of the biomass, it would significantly destabilize the overall biofilm system performance and deteriorate biofilm attachment. Elsevier 2020 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/30456/1/Roughness%20and%20Wettability%20of%20Biofilm%20Carriers1.pdf Al-Amshawee, Sajjad and Mohd Yusri, Mohd Yunus and Lynam, Joan G. and Lee, Woo Hyoung and Dai, Fei and Dakhil, Ihsan Habib (2020) Roughness and wettability of biofilm carriers: A systematic review. Environmental Technology & Innovation. pp. 1-35. ISSN 2352-1864. (In Press / Online First) (In Press / Online First) https://doi.org/10.1016/j.eti.2020.101233 https://doi.org/10.1016/j.eti.2020.101233
spellingShingle TP Chemical technology
Al-Amshawee, Sajjad
Mohd Yusri, Mohd Yunus
Lynam, Joan G.
Lee, Woo Hyoung
Dai, Fei
Dakhil, Ihsan Habib
Roughness and wettability of biofilm carriers: A systematic review
title Roughness and wettability of biofilm carriers: A systematic review
title_full Roughness and wettability of biofilm carriers: A systematic review
title_fullStr Roughness and wettability of biofilm carriers: A systematic review
title_full_unstemmed Roughness and wettability of biofilm carriers: A systematic review
title_short Roughness and wettability of biofilm carriers: A systematic review
title_sort roughness and wettability of biofilm carriers: a systematic review
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/30456/
http://umpir.ump.edu.my/id/eprint/30456/
http://umpir.ump.edu.my/id/eprint/30456/
http://umpir.ump.edu.my/id/eprint/30456/1/Roughness%20and%20Wettability%20of%20Biofilm%20Carriers1.pdf