Formation of jarosite and its effect on important ions for Acidithiobacillus ferrooxidans bacteria

Nazari, B.; Jorjani, E.; Hani, Heba A.; Manafi, Zahra; Riahi, A.R.

doi:10.1016/s1003-6326(14)63174-5

Cited by 58 publications

(28 citation statements)

References 25 publications

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“…For the sake of clarity, samples with an initial pH of 2.0 and the highest Fe 2+ concentrations (6 g L -1 and 9 g L -1 ) were not included in Figure 2. In these latter two cases, jarosite precipitation (SI Figure S2) was evident when the pH rose above 2.3, which was in accordance with Nazari et al 19 . As expected, a higher bacterial density was achieved in those samples with a higher iron concentration, which was visually corroborated by means of DAPI analysis (SI Figure S3).…”

Section: A Ferrooxidanssupporting

confidence: 91%

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: A Ferrooxidanssupporting

confidence: 91%

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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“…Ferrous ion speciation and the precipitation of jarosite were greatly influenced by pH. It was also reported that less jarosite precipitation formed in the condition pH < 1.6 [14].…”

Section: Introductionmentioning

confidence: 95%

Ferrous bio-oxidation byAcidithiobacillus ferrooxidansin hydrochloric acid pickling waste liquor

Qin

Xie

Guo

et al. 2014

Desalination and Water Treatment

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A B S T R A C THydrochloric acid pickling waste liquor (PWL HCl ) is generated in the steel surface cleaning treatment. This process is used to chemically remove the iron oxide scale from steel. PWL HCl is classified as toxic and hazardous waste in many countries because it contains high concentrations of corrosive hydrochloric acid, ferrous irons, and other heavy metals. These properties pose difficulties for PWL HCl reclamation and bioavailability of toxic metals in general. The oxidation of ferrous to ferric sediment is a possible route for PWL HCl reclamation. In this study, Acidithiobacillus ferrooxidans (At.f) was applied to PWL HCl to investigate ferrous oxidation efficiency under low pH and high chloride ion stress. Results indicated that the oxidation ability of At.f remained relatively high when PWL HCl and 9K medium mixed ratio to 60% (V/V); the species was able to endure the extreme conditions at pH 1.4, ferrous ions 0.04 mol/L, chloride ion 800 mg/L, and maintain the ferrous oxidation rate at 90%. The pH was a critical factor impacting the ferrous oxidation efficiency. Different types of mineral crystal shapes, determined by SEM, illustrated the possibility of a new mineral formation. XRD analysis revealed main composition of minerals as (NH 4 ) Fe 3 (SO 4 ) 2 (OH) 6 , and infrared spectroscopy indicated that the existence of C-Cl bond promoted the adaptation of bacteria to PWL HCl .

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“…Despite its widespread application, the jarosite process is not without its problems, especially in the hydrometallurgy processes. Some of the effects include the diminishment of ferric iron used as the absorbent for hydrogen disulfide, blockage of pumps, valves, pipes, corrosion process, and the creation of kinetic barriers due to the small diffusion of reactants and products through the precipitation zone [10,22,[63][64][65][66][67]. In the process of coal desulfurization, jarosite attaching on the surface of the bio-oxidized coal particles results in a compact thin layer of membrane, which may hinder the transfer of substrates and metabolites and decrease bacterial absorbability of nutrients; it can also occupy the available sites of coal surfaces to prevent bacteria from adsorption on coals.…”

Section: Disadvantages Of Jarosite Precipitationmentioning

confidence: 99%

A Review on Various Aspects of Jarosite and Its Utilization Potentials

Eftekhari¹,

Kargar²,

Zamin³

et al. 2020

ACSM

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Jarosite is an effective scavenger for metals by the chemical formula AFe3(SO4)2(OH)6. In the present article, a comprehensive literature review is performed on the formation, decomposition, and utilization of jarosite. Based on reviewed studies, biological jarosite seeds can shorten the induction period and reduce the temperature limit in the jarosite precipitation. Also, the precipitation process of jarosite is more complete with biological jarosite seeds. The crystallization parameters such as Fe2(SO4)3 concentration, agitation speed, pH and temperature have significantly affected on the morphology and the particles size of jarosite. Decomposition of jarosite is carried out using two different methods thermal and hydrothermal. Jarosite seed is a potential resource, which has to be recycled in a technically feasible and environmentally friendly manner. Besides, it is observed that jarosites have several advantages such as control iron in hydrometallurgy, zinc industry, arsenic removal and other impurities, pigment, nanoparticles, filling materials, adsorption materials, acidic reagent, and catalytic materials.

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Formation of jarosite and its effect on important ions for Acidithiobacillus ferrooxidans bacteria

Cited by 58 publications

References 25 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

Ferrous bio-oxidation byAcidithiobacillus ferrooxidansin hydrochloric acid pickling waste liquor

A Review on Various Aspects of Jarosite and Its Utilization Potentials

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