Electricity generation from an inorganic sulfur compound containing mining wastewater by acidophilic microorganisms

Ni, Gaofeng; Christel, Stephan; Roman, Pawel; Wong, Zhen Lim; Bijmans, Martijn F.M.; Dopson, Mark

doi:10.1016/j.resmic.2016.04.010

Cited by 52 publications

(32 citation statements)

References 47 publications

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“…Amongst the grand challenges for space synthetic biology, enhancing biomining and bioleaching for asteroid and planetary deployment has been indicated as one of many important synthetic biology possibilities (Menezes et al, 2015). Recently, the possibility to bioremediate mining wastewaters using microbial fuel cell technology with acidophilic microorganisms has been explored (Ni et al, 2016). Fuel cells can be generated to discard many other inorganic and organic wastes, and the electricity generated is an extra bonus.…”

Section: Space Biomining?mentioning

confidence: 99%

Biomining of metals: how to access and exploit natural resource sustainably

Jerez

2017

Microbial Biotechnology

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SummaryMining activities have been carried out for thousands of years and nowadays have an enormous worldwide use to obtain important metals of industrial use. These include copper, iron, gold and several others. Although modern mining companies have sustainable mining programs that include tailings management and external verifications, it is recognized that these industrial activities are responsible for a significant damage to the environment. Specially, technologies such as smelting and roasting generate very toxic emissions, including solid particles in the air, very large tailings and contribute to generate acid mine drainage (AMD) that affects humans health and all kinds of living plants, animals and microorganisms. Consequently, due to environmental restrictions, these methods are being replaced in many countries by less contaminating processes. On the other hand, the microbial solubilization of metals by bioleaching or biomining is successfully used in industrial operations, to extract several metals such as copper, gold and uranium.

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Section: Space Biomining?mentioning

confidence: 99%

Biomining of metals: how to access and exploit natural resource sustainably

Jerez

2017

Microbial Biotechnology

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“…La mayoría de los estudios sobre CME son a condiciones de pH neutro con sustratos orgánicos tales como acetato, glucosa y materiales complejos 2 . Los sustratos inorgánicos en celdas de combustible microbianas han sido poco estudiados, se han estudiado compuestos como azufre, sulfato y con tetrationato 3,4 .…”

Section: Introductionunclassified

PRODUCCIÓN DE ELECTRICIDAD EMPLEANDO Acidithiobacillus ferrooxidans A PARTIR DE IONES TIOSULFATO Y FÉRRICO

Jibaja¹,

Oyola²,

Berastain³

et al. 2019

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Los microorganismos acidófilos son predominantes en los ecosistemas de aguas ácidas de minas, encontrándose en abundancia la especie Acidithiobacillus ferrooxidans. El objetivo del estudio fue producir electricidad en Celdas de Combustible Microbianas (CCM) a partir del tiosulfato en el ánodo e ion férrico en el cátodo utilizando a la bacteria At. ferrooxidans LB151, la cual fue caracterizada morfológicamente y molecularmente. Las técnicas electroquímicas utilizadas fueron la cronoamperometría y la voltametría cíclica. La voltametría cíclica muestra picos de corriente de oxidación y reducción de los compuestos indicando que hay una interacción de la bacteria con la superficie del electrodo. La cronoamperometría mostró que la bacteria era capaz de producir electricidad al utilizar el tiosulfato con hierro. El voltaje generado por la CCM fue mayor que en la Celda de Combustible Control (CCC), produciendo una densidad de potencia promedio de 24,23 mW/m2 en 4 horas mientras que la celda control produjo una densidad de potencia promedio de 3,41 mW/m2 en el mismo tiempo. El total de energía generada por las bacterias fue 197,3 mW.H/m2 y los Coulombs recuperados (Cp) fueron 4,6x10-4 C. Estos resultados indican que At. ferrooxidans LAB 151 es capaz de producir electricidad a partir de iones tiosulfato y férrico como sustrato en Celdas de Combustible Microbianas.

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“…With few exceptions, the use of inorganic sulfur compounds as substrates are rarely studied. Exceptions include sulfide and tetrathionate from synthetic or industrial wastewaters ( Rabaey et al, 2006 ; Sulonen et al, 2015 ; Ni et al, 2016 ). In general, lowering the operational temperature of these systems will negatively impact reaction rates, alter enzyme-substrate interactions, and ultimately lead to protein cold-denaturation ( Makhatadze and Privalov, 1994 ; Georlette et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Microbial Community and Metabolic Activity in Thiocyanate Degrading Low Temperature Microbial Fuel Cells

Canizales

Broman

et al. 2018

Front. Microbiol.

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Thiocyanate is a toxic compound produced by the mining and metallurgy industries that needs to be remediated prior to its release into the environment. If the industry is situated at high altitudes or near the poles, economic factors require a low temperature treatment process. Microbial fuel cells are a developing technology that have the benefits of both removing such toxic compounds while recovering electrical energy. In this study, simultaneous thiocyanate degradation and electrical current generation was demonstrated and it was suggested that extracellular electron transfer to the anode occurred. Investigation of the microbial community by 16S rRNA metatranscriptome reads supported that the anode attached and planktonic anolyte consortia were dominated by a Thiobacillus-like population. Metatranscriptomic sequencing also suggested thiocyanate degradation primarily occurred via the ‘cyanate’ degradation pathway. The generated sulfide was metabolized via sulfite and ultimately to sulfate mediated by reverse dissimilatory sulfite reductase, APS reductase, and sulfate adenylyltransferase and the released electrons were potentially transferred to the anode via soluble electron shuttles. Finally, the ammonium from thiocyanate degradation was assimilated to glutamate as nitrogen source and carbon dioxide was fixed as carbon source. This study is one of the first to demonstrate a low temperature inorganic sulfur utilizing microbial fuel cell and the first to provide evidence for pathways of thiocyanate degradation coupled to electron transfer.

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Electricity generation from an inorganic sulfur compound containing mining wastewater by acidophilic microorganisms

Cited by 52 publications

References 47 publications

Biomining of metals: how to access and exploit natural resource sustainably

Biomining of metals: how to access and exploit natural resource sustainably

PRODUCCIÓN DE ELECTRICIDAD EMPLEANDO Acidithiobacillus ferrooxidans A PARTIR DE IONES TIOSULFATO Y FÉRRICO

Microbial Community and Metabolic Activity in Thiocyanate Degrading Low Temperature Microbial Fuel Cells

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