Kinetics of ferrous iron oxidation by Sulfobacillus thermosulfidooxidans

Piña, Pablo; Oliveira, Victor de Alvarenga; Cruz, Flávio Luciano dos Santos; Leão, Versiane Albis

doi:10.1016/j.bej.2010.06.009

Cited by 30 publications

(12 citation statements)

References 20 publications

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“…Thus, S. thermosulfidooxidans acted as a relatively poor ferrous ion oxidiser when grown in pure culture (Figure 3). This is in accordance with Pina et al 29 , who highlighted the benefits of mixotrophic conditions at the expense of autotrophic ones (Table 2). S. thermosulfidooxidans showed slower growth kinetics (µ = 0.11 h -1…”

Section: S Thermosulfidooxidanssupporting

confidence: 93%

Simultaneous Culture and Biomachining of Copper in MAC Medium: A Comparison between Acidithiobacillus ferrooxidans and Sulfobacillus thermosulfidooxidans

Díaz-Tena

Gallastegui

Hipperdinger

et al. 2018

ACS Sustainable Chem. Eng.

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Biomachining will not be considered as a full-scale manufacturing technology until a stable, controlled and continuous metal removal rate (MRR) is achieved. In this research work, a novel strategy that could promote its industrial implementation, namely simultaneous bacterial growth and machining of copper contained in oxygen-free copper (OFC) workpieces, was investigated. This proposal has the major advantage of being a single-stage process, thereby reducing total operating times and becoming more economical in comparison with conventional biomachining (downtime due to bacterial growth would disappear). The study was carried out using mesophilic (Acidithiobacillus ferrooxidans) and thermophilic (Sulfobacillus thermosulfidooxidans) extremophile bacteria in order to prevent the progressive decrease in the amount of metal removed per unit time. A constant MRR of 43 mg h-1 was achieved with A. ferrooxidans in the simultaneous process. Despite the accomplishment of a constant MRR, this value is lower than the maximum MRR obtained in conventional biomachining (109 mg h-1), probably due to the inability of ferric ions to come into contact with the metallic surface. With regard to the culture period in MAC medium, S. thermosulfidooxidans showed a slower growth rate (0.11 h-1) and lower ferrous ion oxidation level (0.12 g Fe 2+ L-1 h-1) than A. ferrooxidans (0.17 h-1 and 0.22 g Fe 2+ L-1 h-1 , respectively) under optimal pH (1.5) and Fe 2+ concentration (6 g L-1) conditions.

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Section: S Thermosulfidooxidanssupporting

confidence: 93%

Simultaneous Culture and Biomachining of Copper in MAC Medium: A Comparison between Acidithiobacillus ferrooxidans and Sulfobacillus thermosulfidooxidans

Díaz-Tena

Gallastegui

Hipperdinger

et al. 2018

ACS Sustainable Chem. Eng.

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“…It has been previously reported that they attach to sulfide mineral surfaces, which may promote faster sulfide oxidation [43]. Sulfobacillus species are also involved in ferrous iron oxidation [44,45]. In addition to these two highly represented genera in the water samples of the origin of San Cayetano, we identified other microorganisms related to acidophilic, sulfur-and iron-oxidizing bacteria, such as Acidithiobacillus (OTU_SC0016; 12.5%).…”

Section: The Concentrations Of Dissolved Oxygen Along the River Shapementioning

confidence: 85%

Microbial Community Structure Along a Horizontal Oxygen Gradient in a Costa Rican Volcanic Influenced Acid Rock Drainage System

Arce-Rodríguez

Puente-Sánchez

Avendaño³

et al. 2020

Microb Ecol

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We describe the geochemistry and microbial diversity of a pristine environment that resembles an acid rock drainage (ARD) but it is actually the result of hydrothermal and volcanic influences. We designate this environment, and other comparable sites, as volcanic influenced acid rock drainage (VARD) systems. The metal content and sulfuric acid in this ecosystem stem from the volcanic milieu and not from the product of pyrite oxidation. Based on the analysis of 16S rRNA gene amplicons, we report the microbial community structure in the pristine San Cayetano Costa Rican VARD environment (pH = 2.94-3.06, sulfate~0.87-1.19 g L −1 , iron~35-61 mg L −1 (waters), and~8-293 g kg −1 (sediments)). San Cayetano was found to be dominated by microorganisms involved in the geochemical cycling of iron, sulfur, and nitrogen; however, the identity and abundance of the species changed with the oxygen content (0.40-6.06 mg L −1) along the river course. The hypoxic source of San Cayetano is dominated by a putative anaerobic sulfate-reducing Deltaproteobacterium. Sulfur-oxidizing bacteria such as Acidithiobacillus or Sulfobacillus are found in smaller proportions with respect to typical ARD. In the oxic downstream, we identified aerobic ironoxidizers (Leptospirillum, Acidithrix, Ferrovum) and heterotrophic bacteria (Burkholderiaceae bacterium, Trichococcus, Acidocella). Thermoplasmatales archaea closely related to environmental phylotypes found in other ARD niches were also observed throughout the entire ecosystem. Overall, our study shows the differences and similarities in the diversity and distribution of the microbial communities between an ARD and a VARD system at the source and along the oxygen gradient that establishes on the course of the river.

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“…Sulfobacillus species are also involved in ferrous-iron oxidation (Norris et al . 1996; Pina et al . 2010).…”

Section: Resultsmentioning

confidence: 99%

Untapped microbial composition along a horizontal oxygen gradient in a Costa Rican volcanic influenced acid rock drainage system

Arce-Rodríguez

Puente-Sánchez

Avendaño³

et al. 2019

Preprint

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Based on the analysis of 16S rRNA gene metabarcoding, here we report the shift in the microbial community structure along a horizontal oxygen gradient (0.40-6.06 mg L−1) in a volcanic influenced acid rock drainage (VARD) environment, known as San Cayetano (Cartago, Costa Rica; pH =2.94-3.06, sulfate ~0.87-1.19 g L−1, iron ~35-61 mg L−1). This VARD is dominated by microorganisms involved in the geochemical cycling of iron, sulfur and nitrogen; however, the identity of the species changes with the oxygen gradient along the river course. The anoxic spring of San Cayetano is dominated by a putative anaerobic sulfate-reducing Deltaproteobacterium as well as sulfur-oxidizing bacteria (such as Acidithiobacillus or Sulfobacillus), which favor the process of dissolution of sulfide minerals and oxidation of H2S. In oxic conditions, aerobic iron-oxidizers (Leptospirillum, Acidithrix, Ferritrophicum, Ferrovum) and heterotrophic bacteria (Burkholderiaceae Betaproteobacterium, Trichococcus, Acidocella) were identified among others. Thermoplasmatales archaea closely related to environmental phylotypes found in other ARD/AMD niches were also found throughout the entire ecosystem. This work describes the changes in bacterial diversity, and possible metabolic activities occurring along a horizontal oxygen gradient in a volcanic influenced acid rock drainage system.

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Kinetics of ferrous iron oxidation by Sulfobacillus thermosulfidooxidans

Cited by 30 publications

References 20 publications

Simultaneous Culture and Biomachining of Copper in MAC Medium: A Comparison between Acidithiobacillus ferrooxidans and Sulfobacillus thermosulfidooxidans

Simultaneous Culture and Biomachining of Copper in MAC Medium: A Comparison between Acidithiobacillus ferrooxidans and Sulfobacillus thermosulfidooxidans

Microbial Community Structure Along a Horizontal Oxygen Gradient in a Costa Rican Volcanic Influenced Acid Rock Drainage System

Untapped microbial composition along a horizontal oxygen gradient in a Costa Rican volcanic influenced acid rock drainage system

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