Microbial formation of crystalline scorodite for treatment of As(III)-bearing copper refinery process solution using Acidianus brierleyi

Okibe, Naoko; Koga, M.; Morishita, Shiori; Tanaka, Masahito; Heguri, Shinichi; Asano, Satoshi; Sasaki, Keiko; Hirajima, Tsuyoshi

doi:10.1016/j.hydromet.2014.01.008

Cited by 56 publications

(38 citation statements)

References 41 publications

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“…The constant 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 12 concentration of As(V) may be due to the exocytotic release of As(V) from the precipitation formed in the cells. A similar decrement of As(III) in the culture media was observed in a recent study by Okibe et al, although the residual amounts of As(III) were different from their results where As(III) was completely oxidized after a 6-day incubation [20]. A possible reason may be a different sample storage method, i.e., our samples were frozen for delivery in the present study while their samples were stocked in a refrigerator and were determined within one week.…”

Section: Determination Of the As Species In The Culture Media And A supporting

confidence: 85%

Speciation of arsenic in a thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi, and its culture medium by inductively coupled plasma–optical emission spectroscopy combined with flow injection pretreatment using an anion-exchange mini-column

Higashidani

Kaneta

Takeyasu

et al. 2014

Talanta

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Section: Determination Of the As Species In The Culture Media And A supporting

confidence: 85%

Speciation of arsenic in a thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi, and its culture medium by inductively coupled plasma–optical emission spectroscopy combined with flow injection pretreatment using an anion-exchange mini-column

Higashidani

Kaneta

Takeyasu

et al. 2014

Talanta

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“…49 An As(III)-bearing copper renery process solution was also treated by biomineralization of scorodite. 50 Therefore, the scorodite method for the arsenic xing and treatment of high-arsenic waste acid might be a green process. In the present work, a modied process is proposed to dispose the high-arsenic copper smelting waste acid through the stepwise formation of gypsum and scorodite.…”

Section: àmentioning

confidence: 99%

Disposal of high-arsenic waste acid by the stepwise formation of gypsum and scorodite

Wei

et al. 2020

RSC Adv.

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“…It is well established that both scorodite and mansfieldite have significantly lower solubilities compared to their amorphous counterparts [36][37][38]. The formation of scorodite with its low solubility is one of the methods either through direct deposition or through bioformation using bacteria which has received considerable interest in recent years [12,13,15,23,[39][40][41][42].…”

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

X-ray Photoelectron Spectroscopic and Raman microscopic investigation of the variscite group minerals: Variscite, strengite, scorodite and mansfieldite

Kloprogge

Wood

2017

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Several structurally related AsO and PO minerals, were studied with Raman microscopy and X-ray Photoelectron Spectroscopy (XPS). XPS revealed only Fe, As and O for scorodite. The Fe 2p, As 3d, and O 1s indicated one position for Fe, while 2 different environments for O and As were observed. The O 1s at 530.3eV and the As 3d 5/2 at 43.7eV belonged to AsO, while minor bands for O 1s at 531.3eV and As 3d 5/2 at 44.8eV were due to AsO groups exposed on the surface possibly forming OH-groups. Mansfieldite showed, besides Al, As and O, a trace of Co. The PO equivalent of mansfieldite is variscite. The change in crystal structure replacing As with P resulted in an increase in the binding energy (BE) of the Al 2p by 2.9eV. The substitution of Fe for Al in the structure of strengite resulted in a Fe 2p at 710.8eV. An increase in the Fe 2p BE of 4.8eV was found between mansfieldite and strengite. The scorodite Raman OH-stretching region showed a sharp band at 3513cm and a broad band around 3082cm. The spectrum of mansfieldite was like that of scorodite with a sharp band at 3536cm and broader maxima at 3100cm and 2888cm. Substituting Al in the arsenate structure instead of Fe resulted in a shift of the metal-OH-stretching mode by 23cm towards higher wavenumbers due to a slightly longer H-bonding in mansfieldite compared to scorodite. The intense band for scorodite at 805cm was ascribed to the symmetric stretching mode of the AsO. The medium intensity bands at 890, 869, and 830cm were ascribed to the internal modes. A significant shift towards higher wavenumbers was observed for mansfieldite. The strengite Raman spectrum in the 900-1150cm shows a strong band at 981cm accompanied by a series of less intense bands. The 981cm band was assigned to the PO symmetric stretching mode, while the weak band at 1116cm was the corresponding antisymmetric stretching mode. The remaining bands at 1009, 1023 and 1035cm were assigned to υ(A) internal modes in analogy to the interpretation of the AsO bands for scorodite and mansfieldite. The variscite spectrum showed a shift towards higher wavenumbers in comparison to the strengite spectrum with the strongest band observed at 1030cm and was assigned to the symmetric stretching mode of the PO, while the corresponding antisymmetric stretching mode was observed at 1080cm. Due to the band splitting component bands were observed at 1059, 1046, 1013 and 940cm. The AsO symmetric bending modes for scorodite were observed at 381 and 337cm, while corresponding antisymmetric bending modes occurred at 424, 449 and 484cm. Comparison with other arsenate and phosphate minerals showed that both XPS and Raman spectroscopy are fast and non-destructive techniques to identify these minerals based on their differences in chemistry and the arsenate/phosphate vibrational modes due to changes in the symmetry and the unique fingerprint region of the lattice modes.

show abstract

Microbial formation of crystalline scorodite for treatment of As(III)-bearing copper refinery process solution using Acidianus brierleyi

Cited by 56 publications

References 41 publications

Speciation of arsenic in a thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi, and its culture medium by inductively coupled plasma–optical emission spectroscopy combined with flow injection pretreatment using an anion-exchange mini-column

Speciation of arsenic in a thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi, and its culture medium by inductively coupled plasma–optical emission spectroscopy combined with flow injection pretreatment using an anion-exchange mini-column

Disposal of high-arsenic waste acid by the stepwise formation of gypsum and scorodite

X-ray Photoelectron Spectroscopic and Raman microscopic investigation of the variscite group minerals: Variscite, strengite, scorodite and mansfieldite

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