Sorption of trivalent cerium by a mixture of microbial cells and manganese oxides: Effect of microbial cells on the oxidation of trivalent cerium

Ohnuki, Toshihiko; Jiang, Mingyu; Sakamoto, Fuminori; Kozai, Naofumi; Yamasaki, Shinya; Yu, Qianqian; Tanaka, Kohei; Utsunomiya, Satoshi; Xia, Xiaobin; Yang, Kè; He, Jingliang

doi:10.1016/j.gca.2015.04.043

Cited by 27 publications

(15 citation statements)

References 67 publications

(78 reference statements)

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“…Positive Ce anomalies in Mn oxides are associated with chemical weathering of carbonates (Feng, 2010), as well as the formation of Ce phosphate nanoparticles associated with microbial Mn oxidation (Ohnuki et al, 2015). Negative Ce anomalies can develop in supergene ore bodies with increasing depth (Pracejus et al, 1990), although none of the ores analyzed in this study exhibit strongly negative Ce anomalies.…”

Section: Ree Patternsmentioning

confidence: 66%

New insight into the origin of manganese oxide ore deposits in the Appalachian Valley and Ridge of northeastern Tennessee and northern Virginia, USA

Carmichael

Doctor

Wilson

et al. 2017

Geological Society of America Bulletin

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Manganese oxide deposits have long been observed in association with carbonates within the Appalachian Mountains, but their origin has remained enigmatic for well over a century. Ore deposits of Mn oxides from several productive sites located in eastern Tennessee and northern Virginia display morphologies that include botryoidal and branching forms, massive nodules, breccia matrix cements, and fracture fills. The primary ore minerals include hollandite, cryptomelane, and romanèchite. Samples of Mn oxides from multiple localities in these regions were analyzed using electron microscopy, X-ray analysis, Fourier transform infrared spectroscopy, and trace/rare earth element geochemistry. The samples from eastern Tennessee have biological morphologies, contain residual biopolymers, and exhibit REE signatures that suggest the ore formation was due to supergene enrichment (likely coupled with microbial activity). In contrast, several northern Virginia ores hosted within quartz-sandstone breccias exhibit petrographic relations, mineral morphologies, and REE signatures indicating inorganic precipitation, and a likely hydrothermal origin with supergene overprinting. Nodular accumulations of Mn oxides within weathered alluvial deposits that occur near to breccia-hosted Mn deposits in Virginia show geochemical signatures that are distinct from the breccia matrices, and appear to reflect remobilization of earlier-emplaced Mn and concentration within supergene traps. Based on the proximity of all of the productive ore deposits to mapped faults or other zones of deformation, we suggest that the primary source of all of the Mn may have been deep-seated, and that Mn oxides with supergene and/or biological characteristics result from the local remobilization and concentration of this primary Mn. Carmichael ABSTRACTManganese oxide deposits have long been observed in association with carbonates within the Appalachian Mountains, but their origin has remained enigmatic for well over a century. Ore deposits of Mn oxides from several productive sites located in eastern Tennessee and northern Virginia display morphologies that include botryoidal and branching forms, massive nodules, breccia matrix cements, and fracture fills. The primary ore minerals include hollandite, cryptomelane, and romanèchite. Samples of Mn oxides from multiple localities in these regions were analyzed using electron microscopy, X-ray analysis, Fourier transform infrared spectroscopy, and trace/rare earth element geochemistry. The samples from eastern Tennessee have biological morphologies, contain residual biopolymers, and exhibit REE signatures that suggest the ore formation was due to supergene enrichment (likely coupled with microbial activity). In contrast, several northern Virginia ores hosted within quartz-sandstone breccias exhibit petrographic relations, mineral morphologies, and REE signatures indicating inorganic precipitation, and a likely hydrothermal origin with supergene overprinting. Nodular accumulations of Mn oxides within weathered al...

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Section: Ree Patternsmentioning

confidence: 66%

New insight into the origin of manganese oxide ore deposits in the Appalachian Valley and Ridge of northeastern Tennessee and northern Virginia, USA

Carmichael

Doctor

Wilson

et al. 2017

Geological Society of America Bulletin

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“…Uptake of Ce(III) was reported by the Gram negative microorganism Pseudomonas fluorescens [65]. Ce(III) uptake was accompanied by its oxidation to Ce(IV).…”

Section: An Alternative Approach For Ree Recovery Via Biogenic Phosphatementioning

confidence: 99%

“…A longer contact time resulted in a greater amount of the 'fixed' Ce(III) following addition of MnO 2 as an oxidising agent. Cerium phosphate nano-particles were formed on the cells in the absence of added phosphate and hence the formation of Ce(III) phosphate at the expense of stored and mobilised phosphate was suggested [65]. Accordingly, storage of phosphate as intracellular polyphosphate bodies in Pseudomonas putida has been reported [66].…”

Section: An Alternative Approach For Ree Recovery Via Biogenic Phosphatementioning

confidence: 99%

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Biotechnology Processes for Scalable, Selective Rare Earth Element Recovery

Macaskie¹,

Moriyama²,

Mikheenko³

et al. 2017

Rare Earth Element

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Biorecovery of rare earth elements (REE) from wastes and ores is achieved by bacteria using biogenic phosphates. One approach uses an enzyme that biomineralises REE phosphate crystals into the extracellular polymeric matrix (EPM). The enzyme, co-localised in the EPM, provides a continuous phosphate feed into biomineralisation. The bacteria can be immobilised in a column, allowing continuous metal removal. Metals biocrystallise at different rates. By choosing suitable conditions and column flow rates selective recovery of REE against uranium and thorium can potentially overcome a bottleneck in recovery of REE from mine tailings and ore leachates co-contaminated with these radionuclides. Another approach to REE recovery first lays down calcium phosphate as hydroxyapatite (Bio-HA) using the enzymatic process. Bio-HA then captures REE, loading REE of up to 84% of the HA-mass. REE 3+ first localises at the grain boundaries of the small bio-crystallites and then substitutes for Ca 2+ stoichiometrically within the HA. After REE capture the bio-HA/REE hybrid can be separated magnetically. A wider concept: using a 'priming' deposit of one mineral to facilitate the capture of REEs, has been shown, potentially providing a basis for selective REE recovery which would provide advantages over the > 100 steps currently used in commercial REE refining.

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“…However, among the REE, Cerium is the only element that can be oxidized to the (IV) state that occurs abiotically through oxidation/scavenging of dissolved Ce (III) by Mn and Fe oxyhydroxides (Ohta and Kawabe 2001) or biotically, by the effect of bacteria (Ohnuki et al 2015). Cerium, is one of the radiotoxic fission products in radioactive waste which affects human beings due to its toxicity and that's why it is of great importance in the field of Management of Environmental…”

Section: Introductionmentioning

confidence: 99%

Kinetic sorption study of Cerium (IV) on magnetite nanoparticles

Ahmed

Gamal

Abo-El-Enein

et al. 2016

Particulate Science and Technology

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Magnetite nanoparticles (Fe3O4) and humic acid coated magnetite nanoparticles (Fe3O4/HA) were prepared by co-precipitation method for cerium ions removal from aqueous solution. The success of preparation in nanoscale was confirmed by XRD and TEM. The TEM image shows that the size of Fe3O4 is around 15 nm and the presence of humic acid reduces the magnetite aggregation and stabilizes the magnetite suspension. Adsorption studies with respect to various process variables Downloaded by [New York University] at 23:16 17 June 2016 2 such as contact time, pH and temperature were investigated by batch technique. The sorption kinetics and isotherms of Fe3O4 and Fe3O4/HA for Ce (IV) ions show that the sorption kinetics follow the pseudo-second-order and Langmuir isotherm model for both sorbents. The maximum capacity (Qmax) of Ce (IV) onto Fe3O4 and Fe3O4/HA were found to be 160, 280 mg/g, respectively. The thermodynamic parameters (∆G o , ∆H o and ∆S o ) were calculated, and the results revealed that the sorption process of Ce (IV) ions on both Fe3O4 and Fe3O4 /HA are spontaneous, endothermic for Fe3O4 and exothermic for Fe3O4/HA.

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Sorption of trivalent cerium by a mixture of microbial cells and manganese oxides: Effect of microbial cells on the oxidation of trivalent cerium

Cited by 27 publications

References 67 publications

New insight into the origin of manganese oxide ore deposits in the Appalachian Valley and Ridge of northeastern Tennessee and northern Virginia, USA

New insight into the origin of manganese oxide ore deposits in the Appalachian Valley and Ridge of northeastern Tennessee and northern Virginia, USA

Biotechnology Processes for Scalable, Selective Rare Earth Element Recovery

Kinetic sorption study of Cerium (IV) on magnetite nanoparticles

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