Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell

Anodic biofilm plays a crucial role in bioelectrochemical system to make it sustainable for long-term performance. However, the accumulation of dead cells over time within the anode biofilm can be particularly detrimental for current generation. In this study, the effect of ultrasound on anode biofi...

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Main Authors:	Islam, M. Amirul, Woon, Chee Wai, Ethiraj, Baranitharan, Cheng, C. K., Yousuf, Abu, Khan, Maksudur R.
Format:	Article
Language:	English
Published:	American Chemical Society (ACS Publications) 2017
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/1/ultrasound-amirul-fkksa-2017.pdf

id	ump-16757
recordtype	eprints
spelling	ump-167572018-01-12T04:57:50Z http://umpir.ump.edu.my/id/eprint/16757/ Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell Islam, M. Amirul Woon, Chee Wai Ethiraj, Baranitharan Cheng, C. K. Yousuf, Abu Khan, Maksudur R. TP Chemical technology Anodic biofilm plays a crucial role in bioelectrochemical system to make it sustainable for long-term performance. However, the accumulation of dead cells over time within the anode biofilm can be particularly detrimental for current generation. In this study, the effect of ultrasound on anode biofilm thickness was investigated in microbial fuel cells (MFCs). Ultrasonic treatment was employed for different durations to evaluate its ability to control the thickness of the biofilm to maintain stable power generation. Cell viability count and field emission scanning electron microscopy (FESEM) analysis of the biofilms over time showed that the number of dead cells increased with the increase of biofilm thickness, and eventually exceeded the number of live cells by many-fold. Electrochemical impedance spectroscopy (EIS) analysis indicated that the high polarization resistance appeared due to the dead layer formation, and thus the catalytic efficiency was reduced in MFCs. The stable power generation was achieved by employing ultrasonic treatment for 30 min every 6 days with some initial exception. The low frequency ultrasound treatment successfully dislodged the ineffective biofilm from the surface of the anode. Moreover, the ultrasound could increase the mass transfer rate of the nutrients and cellular waste through the biofilm leading to the increase in cell growth. Therefore, ultrasonic treatment is verified as an efficient method to control the thickness of the biofilm as well as enhance the cell viability in biofilm thereby maintaining the stable power generation in the MFC. American Chemical Society (ACS Publications) 2017-12-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16757/1/ultrasound-amirul-fkksa-2017.pdf Islam, M. Amirul and Woon, Chee Wai and Ethiraj, Baranitharan and Cheng, C. K. and Yousuf, Abu and Khan, Maksudur R. (2017) Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell. Energy & Fuels, 31 (1). pp. 968-976. ISSN 0887-0624 http://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.6b02294 DOI:10.1021/acs.energyfuels.6b02294
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Islam, M. Amirul Woon, Chee Wai Ethiraj, Baranitharan Cheng, C. K. Yousuf, Abu Khan, Maksudur R. Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
description	Anodic biofilm plays a crucial role in bioelectrochemical system to make it sustainable for long-term performance. However, the accumulation of dead cells over time within the anode biofilm can be particularly detrimental for current generation. In this study, the effect of ultrasound on anode biofilm thickness was investigated in microbial fuel cells (MFCs). Ultrasonic treatment was employed for different durations to evaluate its ability to control the thickness of the biofilm to maintain stable power generation. Cell viability count and field emission scanning electron microscopy (FESEM) analysis of the biofilms over time showed that the number of dead cells increased with the increase of biofilm thickness, and eventually exceeded the number of live cells by many-fold. Electrochemical impedance spectroscopy (EIS) analysis indicated that the high polarization resistance appeared due to the dead layer formation, and thus the catalytic efficiency was reduced in MFCs. The stable power generation was achieved by employing ultrasonic treatment for 30 min every 6 days with some initial exception. The low frequency ultrasound treatment successfully dislodged the ineffective biofilm from the surface of the anode. Moreover, the ultrasound could increase the mass transfer rate of the nutrients and cellular waste through the biofilm leading to the increase in cell growth. Therefore, ultrasonic treatment is verified as an efficient method to control the thickness of the biofilm as well as enhance the cell viability in biofilm thereby maintaining the stable power generation in the MFC.
format	Article
author	Islam, M. Amirul Woon, Chee Wai Ethiraj, Baranitharan Cheng, C. K. Yousuf, Abu Khan, Maksudur R.
author_facet	Islam, M. Amirul Woon, Chee Wai Ethiraj, Baranitharan Cheng, C. K. Yousuf, Abu Khan, Maksudur R.
author_sort	Islam, M. Amirul
title	Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
title_short	Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
title_full	Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
title_fullStr	Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
title_full_unstemmed	Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell
title_sort	ultrasound driven biofilm removal for stable power generation in microbial fuel cell
publisher	American Chemical Society (ACS Publications)
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/ http://umpir.ump.edu.my/id/eprint/16757/1/ultrasound-amirul-fkksa-2017.pdf
first_indexed	2023-09-18T22:22:45Z
last_indexed	2023-09-18T22:22:45Z
_version_	1777415765984542720

Ultrasound Driven Biofilm Removal for Stable Power Generation in Microbial Fuel Cell

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