Halotolerant extremophile bacteria from the Great Salt Lake for recycling pollutants in microbial fuel cells

Grattieri, Matteo; Suvira, Milomir; Hasan, Kamrul; Minteer, Shelley D.

doi:10.1016/j.jpowsour.2016.11.090

Cited by 47 publications

(48 citation statements)

References 31 publications

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“…Recently the usage of carbonaceous materials like activated carbon (AC) [42], [43], [44], [45], [46], [47], [48], [49], [50], [51], [52], [53], carbon nanotubes (CNT) [54], [55], carbon nanofibers (CNF) [56], [57], [58], [59], graphene [60], [61], [62], [63] and modified carbon black [64], [65] in the cathodes has greatly increased. Those materials possess high surface area, electrical conductivity, mechanical strength and resistance to corrosion, moreover they are commercially readily available and very economical to use for large-scale applications [66].…”

Section: Introductionmentioning

confidence: 99%

Bimetallic platinum group metal-free catalysts for high power generating microbial fuel cells

Kodali

Santoro

Herrera

et al. 2017

Journal of Power Sources

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M1-M2-N-C bimetallic catalysts with M1 as Fe and Co and M2 as Fe, Co, Ni and Mn were synthesized and investigated as cathode catalysts for oxygen reduction reaction (ORR). The catalysts were prepared by Sacrificial Support Method in which silica was the template and aminoantipyrine (AAPyr) was the organic precursor. The electro-catalytic properties of these catalysts were investigated by using rotating ring disk (RRDE) electrode setup in neutral electrolyte. Fe-Mn-AAPyr outperformed Fe-AAPyr that showed higher performances compared to Fe-Co-AAPyr and Fe-Ni-AAPyr in terms of half-wave potential. In parallel, Fe-Co-AAPyr, Co-Mn-AAPyr and Co-Ni-AAPyr outperformed Co-AAPyr. The presence of Co within the catalyst contributed to high peroxide production not desired for efficient ORR. The catalytic capability of the catalysts integrated in air-breathing cathode was also verified. It was found that Co-based catalysts showed an improvement in performance by the addition of second metal compared to simple Co- AAPyr. Fe-based bimetallic materials didn't show improvement compared to Fe-AAPyr with the exception of Fe-Mn-AAPyr catalyst that had the highest performance recorded in this study with maximum power density of 221.8 ± 6.6 μWcm−2. Activated carbon (AC) was used as control and had the lowest performances in RRDE and achieved only 95.6 ± 5.8 μWcm−2 when tested in MFC.

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Section: Introductionmentioning

confidence: 99%

Bimetallic platinum group metal-free catalysts for high power generating microbial fuel cells

Kodali

Santoro

Herrera

et al. 2017

Journal of Power Sources

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“…[17] In summary,t he SEM images showedt hat the anode was colonized by biofilm but not uniformly.F uture research will be devoted to facilitating andi mprovingt he colonization of the anode, and additional surface modification approachesw ill be explored, which would allow us to improvet he power performance of the complete MFC system. Clearly, biomass developed on top of the electrode, althought he colonization of the electrode was not uniform.…”

Section: Sem Analysismentioning

confidence: 99%

“…[17] The final composition of the growth medium was (per liter of deionized water): 0.5 gK H 2 PO 4 (Macron Chemicals), 1g NH 4 Cl (Macron Chemicals), 1g Na 2 SO 4 (Macron Chemicals), 1g CaCl 2 (Sigma-Aldrich), 1.83 gM gCl 2 6H 2 O( Fisher Scientific), 1g yeast extract (Sigma-Aldrich), 0.1 g l-ascorbic acid (Sigma-Aldrich), 0.013 gsodium thioglycolate (Sigma-Aldrich), 6.38 gsodium citrate (Sigma-Aldrich), 0.5 gF eSO 4 ·7 H 2 O( Sigma-Aldrich), 1.75 gs odium lactate (Sigma-Aldrich), 2g sodium acetate trihydrate (Macron Chemicals), and 35 gN aCl (VWR Analytical). [17] The final composition of the growth medium was (per liter of deionized water): 0.5 gK H 2 PO 4 (Macron Chemicals), 1g NH 4 Cl (Macron Chemicals), 1g Na 2 SO 4 (Macron Chemicals), 1g CaCl 2 (Sigma-Aldrich), 1.83 gM gCl 2 6H 2 O( Fisher Scientific), 1g yeast extract (Sigma-Aldrich), 0.1 g l-ascorbic acid (Sigma-Aldrich), 0.013 gsodium thioglycolate (Sigma-Aldrich), 6.38 gsodium citrate (Sigma-Aldrich), 0.5 gF eSO 4 ·7 H 2 O( Sigma-Aldrich), 1.75 gs odium lactate (Sigma-Aldrich), 2g sodium acetate trihydrate (Macron Chemicals), and 35 gN aCl (VWR Analytical).…”

Section: Bacterialgrowthmentioning

confidence: 99%

“…[14] Ther esultss how that, under specific conditions, no corrosion caused by bacterial activity waso btained on AISI 304. [17] In our previous study, carbon cloth wasu sed as the electrode materialf or the anode of the MFCs. [14c] However,u nder hypersaline conditions, the electrochemicalb ehavior of metal electrodes can strongly affect the Microbial fuel cells are an emerging technology for wastewater treatment, but to be commercially viable and sustainable, the electrode materials must be inexpensive, recyclable, and reliable.…”

Section: Introductionmentioning

confidence: 99%

“…[16] We have demonstrated that halotolerant bacteria obtained from the Great Salt Lake can be used as the inoculum in single-chamber MFCs and act as bioelectrocatalysts both for the anodic and the cathodic reactions. [17] In our previous study, carbon cloth wasu sed as the electrode materialf or the anode of the MFCs.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable Hypersaline Microbial Fuel Cells: Inexpensive Recyclable Polymer Supports for Carbon Nanotube Conductive Paint Anodes

et al. 2017

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Microbial fuel cells are an emerging technology for wastewater treatment, but to be commercially viable and sustainable, the electrode materials must be inexpensive, recyclable, and reliable. In this study, recyclable polymeric supports were explored for the development of anode electrodes to be applied in single-chamber microbial fuel cells operated in field under hypersaline conditions. The support was covered with a carbon nanotube (CNT) based conductive paint, and biofilms were able to colonize the electrodes. The single-chamber microbial fuel cells with Pt-free cathodes delivered a reproducible power output after 15 days of operation to achieve 12±1 mW m at a current density of 69±7 mA m . The decrease of the performance in long-term experiments was mostly related to inorganic precipitates on the cathode electrode and did not affect the performance of the anode, as shown by experiments in which the cathode was replaced and the fuel cell performance was regenerated. The results of these studies show the feasibility of polymeric supports coated with CNT-based paint for microbial fuel cell applications.

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Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

et al. 2018

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A microbial fuel cell (MFC) based on a new wild-type strain of Salinivibrio sp. allowed the self-sustained treatment of hypersaline solutions (100 g L , 1.71 m NaCl), reaching a removal of (87±11) % of the initial chemical oxygen demand after five days of operation, being the highest value achieved for hypersaline MFC. The degradation process and the evolution of the open circuit potential of the MFCs were correlated, opening the possibility for online monitoring of the treatment. The use of alginate capsules to trap bacterial cells, increasing cell density and stability, resulted in an eightfold higher power output, together with a more stable system, allowing operation up to five months with no maintenance required. The reported results are of critical importance to efforts to develop a sustainable and cost-effective system that treats hypersaline waste streams and reduces the quantity of polluting compounds released.

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Halotolerant extremophile bacteria from the Great Salt Lake for recycling pollutants in microbial fuel cells

Cited by 47 publications

References 31 publications

Bimetallic platinum group metal-free catalysts for high power generating microbial fuel cells

Bimetallic platinum group metal-free catalysts for high power generating microbial fuel cells

Sustainable Hypersaline Microbial Fuel Cells: Inexpensive Recyclable Polymer Supports for Carbon Nanotube Conductive Paint Anodes

Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

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