Rainwater-driven microbial fuel cells for power generation in remote areas

The possibility of using rainwater as a sustainable anolyte in an air-cathode microbial fuel cell (MFC) is investigated in this study. The results indicate that the proposed MFC can work within a wide temperature range (from 0 to 30°C) and under aerobic or anaerobic conditions. However, the rainwate...

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Autores principales:	Mohamed Taha Amen, Ahmed S. Yasin, Mohamed I. Hegazy, Mohammad Abu Hena Mostafa Jamal, Seong-Tshool Hong, Nasser A. M. Barakat
Formato:	article
Lenguaje:	EN
Publicado:	The Royal Society 2021
Materias:	rainwater microbial fuel cell remote area sensor power generation Science Q
Acceso en línea:	https://doaj.org/article/33526f600dd84a68a3ce33cd48e26f79
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spelling	oai:doaj.org-article:33526f600dd84a68a3ce33cd48e26f792021-11-24T08:05:47ZRainwater-driven microbial fuel cells for power generation in remote areas10.1098/rsos.2109962054-5703https://doaj.org/article/33526f600dd84a68a3ce33cd48e26f792021-11-01T00:00:00Zhttps://royalsocietypublishing.org/doi/10.1098/rsos.210996https://doaj.org/toc/2054-5703The possibility of using rainwater as a sustainable anolyte in an air-cathode microbial fuel cell (MFC) is investigated in this study. The results indicate that the proposed MFC can work within a wide temperature range (from 0 to 30°C) and under aerobic or anaerobic conditions. However, the rainwater season has a distinct impact. Under anaerobic conditions, the summer rainwater achieves a promised open circuit potential (OCP) of 553 ± 2 mV without addition of nutrients at the ambient temperature, while addition of nutrients leads to an increase in the cell voltage to 763 ± 3 and 588 ± 2 mV at 30°C and ambient temperature, respectively. The maximum OCP for the winter rainwater (492 ± 1.5 mV) is obtained when the reactor is exposed to the air (aerobic conditions) at ambient temperature. Furthermore, the winter rainwater MFC generates a maximum power output of 7 ± 0.1 mWm−2 at a corresponding current density value of 44 ± 0.7 mAm−2 at 30°C. While, at the ambient temperature, the maximum output power is obtained with the summer rainwater (7.2 ± 0.1 mWm−2 at 26 ± 0.5 mAm−2). Moreover, investigation of the bacterial diversity indicates that Lactobacillus spp. is the dominant electroactive genus in the summer rainwater, while in the winter rainwater, Staphylococcus spp. is the main electroactive bacteria. The cyclic voltammetry analysis confirms that the electrons are delivered directly from the bacterial biofilm to the anode surface and without mediators. Overall, this study opens a new avenue for using a novel sustainable type of MFC derived from rainwater.Mohamed Taha AmenAhmed S. YasinMohamed I. HegazyMohammad Abu Hena Mostafa JamalSeong-Tshool HongNasser A. M. BarakatThe Royal Societyarticlerainwatermicrobial fuel cellremote area sensorpower generationScienceQENRoyal Society Open Science, Vol 8, Iss 11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rainwater microbial fuel cell remote area sensor power generation Science Q
spellingShingle	rainwater microbial fuel cell remote area sensor power generation Science Q Mohamed Taha Amen Ahmed S. Yasin Mohamed I. Hegazy Mohammad Abu Hena Mostafa Jamal Seong-Tshool Hong Nasser A. M. Barakat Rainwater-driven microbial fuel cells for power generation in remote areas
description	The possibility of using rainwater as a sustainable anolyte in an air-cathode microbial fuel cell (MFC) is investigated in this study. The results indicate that the proposed MFC can work within a wide temperature range (from 0 to 30°C) and under aerobic or anaerobic conditions. However, the rainwater season has a distinct impact. Under anaerobic conditions, the summer rainwater achieves a promised open circuit potential (OCP) of 553 ± 2 mV without addition of nutrients at the ambient temperature, while addition of nutrients leads to an increase in the cell voltage to 763 ± 3 and 588 ± 2 mV at 30°C and ambient temperature, respectively. The maximum OCP for the winter rainwater (492 ± 1.5 mV) is obtained when the reactor is exposed to the air (aerobic conditions) at ambient temperature. Furthermore, the winter rainwater MFC generates a maximum power output of 7 ± 0.1 mWm−2 at a corresponding current density value of 44 ± 0.7 mAm−2 at 30°C. While, at the ambient temperature, the maximum output power is obtained with the summer rainwater (7.2 ± 0.1 mWm−2 at 26 ± 0.5 mAm−2). Moreover, investigation of the bacterial diversity indicates that Lactobacillus spp. is the dominant electroactive genus in the summer rainwater, while in the winter rainwater, Staphylococcus spp. is the main electroactive bacteria. The cyclic voltammetry analysis confirms that the electrons are delivered directly from the bacterial biofilm to the anode surface and without mediators. Overall, this study opens a new avenue for using a novel sustainable type of MFC derived from rainwater.
format	article
author	Mohamed Taha Amen Ahmed S. Yasin Mohamed I. Hegazy Mohammad Abu Hena Mostafa Jamal Seong-Tshool Hong Nasser A. M. Barakat
author_facet	Mohamed Taha Amen Ahmed S. Yasin Mohamed I. Hegazy Mohammad Abu Hena Mostafa Jamal Seong-Tshool Hong Nasser A. M. Barakat
author_sort	Mohamed Taha Amen
title	Rainwater-driven microbial fuel cells for power generation in remote areas
title_short	Rainwater-driven microbial fuel cells for power generation in remote areas
title_full	Rainwater-driven microbial fuel cells for power generation in remote areas
title_fullStr	Rainwater-driven microbial fuel cells for power generation in remote areas
title_full_unstemmed	Rainwater-driven microbial fuel cells for power generation in remote areas
title_sort	rainwater-driven microbial fuel cells for power generation in remote areas
publisher	The Royal Society
publishDate	2021
url	https://doaj.org/article/33526f600dd84a68a3ce33cd48e26f79
work_keys_str_mv	AT mohamedtahaamen rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas AT ahmedsyasin rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas AT mohamedihegazy rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas AT mohammadabuhenamostafajamal rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas AT seongtshoolhong rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas AT nasserambarakat rainwaterdrivenmicrobialfuelcellsforpowergenerationinremoteareas
_version_	1718415787235999744

Rainwater-driven microbial fuel cells for power generation in remote areas

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