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Yeast Extract Affecting the Transformation of Biogenic Tooeleite and Its Stability. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Highly toxic As(III) is the main form of As in wastewater. The retention of As by tooeleite has gradually attracted attention in recent years due to its great potential for the direct removal of As(III). The existence of natural As-bearing minerals is closely related to microorganisms and organic matters. In this study, yeast extract was found to enhance the stability of biogenic tooeleite by Acidithiobacillus ferrooxidans (A. ferrooxidans). The effects of pH, Fe/As and yeast extract concentration were systematically studied, and the toxicity characteristic leaching procedure (TCLP) was conducted to evaluate the short-term stability of tooeleite. The mineral synthesized in the presence of yeast extract showed that the As leaching concentration decreased from 13.78 mg/L to 7.23 mg/L and the stability increased by more than 40%. In addition, various characteristics confirmed that the precursor was changed from amorphous schwertmannite to basic ferric sulfate in the presence of yeast extract, and then transformed to relatively purer tooeleite with less hollow structure and excellent dispersion, which is favorable for the stability of tooeleite. This result indicated that yeast extract resulted in the formation of different precursors and thus affected the transformation and stability of tooeleite.
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Wang X, Li Q, Liao Q, Yan Y, Xia J, Lin Q, Wang Q, Liang Y. Arsenic(III) biotransformation to tooeleite associated with the oxidation of Fe(II) via Acidithiobacillus ferrooxidans. CHEMOSPHERE 2020; 248:126080. [PMID: 32032883 DOI: 10.1016/j.chemosphere.2020.126080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 01/23/2020] [Accepted: 01/31/2020] [Indexed: 06/10/2023]
Abstract
Tooeleite (Fe6(AsO3)4(SO4)(OH)4·4H2O), the only known ferric arsenite sulfate bearing mineral, has great potential for arsenic remediation due to its structure favoring incorporation of As(III). Based on the natural attenuation of removing As(III) directly by the formation of tooeleite via microorganisms, an iron-oxidizing bacterial strain Acidithiobacillus ferrooxidans ATCC 23270 (At.ferrooxidans) was selected to facilitate the formation of tooeleite. The optimized condition for the biogenic tooeleite was obtained at pH of 2.0, 30 °C and an initial arsenic of 500 mg/L. The process of biological mineralization is accompanied by the removal of 95.4% arsenic. What's more, biosynthetic tooeleite crystallization via a three-stage process was revealed using a combination of liquid and solid analyses (ICP-OES, XRD, XPS, FT-IR, SEM, STEM, particle distribution). The three stages included Fe2+ oxidation by At.ferrooxidans, Fe3+ hydrolysis and an initial Fe-As amorphous precursors formation, and finally transforming to tooeleite crystal. Moreover, RT-qPCR was used to reveal the relationship between functional gene expression of At.ferrooxidans and the mineral formation. The results showed the biogenic tooeleite exerts significant control on the geochemistry of arsenic contaminated systems.
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Affiliation(s)
- Xi Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Qingzhu Li
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha, 410083, China.
| | - Qi Liao
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China
| | - Yuchen Yan
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Juan Xia
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Qiuhong Lin
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Qingwei Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha, 410083, China
| | - Yanjie Liang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China
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Halli P, Agarwal V, Partinen J, Lundström M. Recovery of Pb and Zn from a citrate leach liquor of a roasted EAF dust using precipitation and solvent extraction. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116264] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Synergetic effects of Ferroplasma thermophilum in enhancement of copper concentrate bioleaching by Acidithiobacillus caldus and Leptospirillum ferriphilum. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2014.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Abstract
In order to study the ecology of intertidal plants and animals it is desirable to choose a coast-line which is as simple as possible. When numerous factors vary simultaneously it is impossible to decide which of them is responsible for any change which may occur in the flora and fauna. The complexity of a shore which is ravined or boulder-strewn makes ecological work difficult. Unfortunately, certain major influences, such as wave action, involve a whole complex of subsidiary effects, so that the perfect locality, where each environmental factor would be found to vary in turn independently of all the other factors, cannot exist.
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The titration of hydroquinone with iodine or dichromate according to the ordinary and the potentiometric method. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19260451006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Someya K. Die Anwendung von flüssigem Amalgam in der volumetrischen Analyse. IV. Über die reduzierte Wirkung von Wismutamalgam, die Reduktion von Uran und die Verwendung von Bichromattitration. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.19261520137] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Someya K. Die Anwendung von flüssigem Amalgam in der volumetrischen Analyse. IX. Einige neue Methoden zur Bestimmung von Vanadium und Wolfram. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.19271630118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Turian G. Recherches sur la biosynthèse des caroténoïdes chez un Bacille paratuberculeux. III. Inhibition de la pigmentation par la diphénylamine. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19500330703] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Organofluorosilicates in organic synthesis. 3. Copper(II) oxidation of organopentafluorosilicates. Synthetic utility and mechanistic implications. Tetrahedron Lett 1978. [DOI: 10.1016/s0040-4039(01)94677-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Induced reactions in dichrometry. Anal Bioanal Chem 1956. [DOI: 10.1007/bf00450475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nouveau dosage volumétrique du cuivre au moyen du dichromate. Anal Chim Acta 1948. [DOI: 10.1016/s0003-2670(01)93793-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nachweis und Bestimmung des Zinns. Anal Bioanal Chem 1925. [DOI: 10.1007/bf02423662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Someya K. Selektive Bestimmung von Vanadium in Gegenwart von Eisen und Chrom. I. Bestimmung von Vanadium in Gegenwart von Eisen. Z Anorg Allg Chem 1924. [DOI: 10.1002/zaac.19241390114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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