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Xu YH, Brandl H, Osterwalder S, Elzinga EJ, Huang JH. Vanadium-basidiomycete fungi interaction and its impact on vanadium biogeochemistry. Environ Int 2019; 130:104891. [PMID: 31234005 DOI: 10.1016/j.envint.2019.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 05/22/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
Fungi are well known to strongly interact with metals, thereby influencing metal biogeochemistry in the terrestrial environment. To assess and quantify potential fungi-vanadium (V) interactions, Amanita muscaria, Armillaria cepistipes, Xerocomus badius and Bjerkandera adusta were cultured in media containing soluble V (VOSO4 or NaVO3) or solid-phase V of different chemical forms and oxidation state (V2O3, VO2, V2O5, or V-Ti magnetite slag). All fungi underwent physiological and structural changes, as revealed by alterations in FT-IR peak positions and intensities relative to the control, and morphological changes of mycelia, as observed by scanning electron microscopy. The diametric growth size generally decreased with decreasing oxidation state of V and with increasing concentrations of VOSO4 and NaVO3, implying that V toxicity is dependent on V speciation. The tolerance index, the ratio of treated and control mycelium (dry weight), shows different tendencies, suggesting additional factors influencing fungi weight, such as the formation of extrahyphal crystals. Vanadium accumulation from VOSO4 and NaVO3 medium in all fungi (up to 51.3 mg g-1) shows the potential of fungi to immobilise soluble V, thereby reducing its impacts on environmental and human health. Uptake and accumulation of V in slag was insignificant, reflecting the association of slag V with insoluble crystalline materials. The fungal accumulation of V in medium amended with V-oxides demonstrates the ability of fungi to solubilise solid-phase V compounds, thereby introducing previously immobile V into the V biogeochemical cycle and into the food chain where it may impact ecological and human health. A.muscaria lowered the pH of the medium substantially during cultivation, indicating acidolysis and complexolysis via excretion of organic acids (e.g. oxalic acid). Oxidation of VOSO4 was observed by a colour change of the medium to yellow during B. adusta cultivation, revealing the role of fungally-mediated redox transformation in V (im)mobilisation. The calculated removal efficiencies of soluble V were 40-90% for A. cepistipes and X. badius, but a much lower recovery (0-20%) was observed from V oxides and slag (0-20%) by all fungi. This suggests the probable application of fungi for bio-remediation of mobile/soluble V in contaminated soils but not of V incorporated in the lattice of soil minerals.
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Affiliation(s)
- Yu-Hui Xu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, CH-8057 Zurich, Switzerland; Soil Institute, Sichuan Academy of Environmental Sciences, 610041 Chengdu, China
| | - Helmut Brandl
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, CH-8057 Zurich, Switzerland
| | - Stefan Osterwalder
- Environmental Geosciences, University of Basel, CH-4056 Basel, Switzerland
| | - Evert J Elzinga
- Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, USA
| | - Jen-How Huang
- Environmental Geosciences, University of Basel, CH-4056 Basel, Switzerland.
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Gómez-Ramírez M, Rojas-Avelizapa NG, Hernández-Gama R, Tenorio-Sánchez SA, López-Villegas EO. Potential use of Bacillus genera for metals removal from spent catalysts. J Environ Sci Health A Tox Hazard Subst Environ Eng 2019; 54:701-710. [PMID: 31094278 DOI: 10.1080/10934529.2019.1585720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 02/02/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
The aim of the present study was to isolate microorganisms able to tolerate Ni2+ and V5+ from different sites located close to a mineral mine in Guanajuato, Mexico, and then to evaluate their ability to remove metals contained in a spent catalyst. Seventeen isolates were obtained; among them seven presented a minimum inhibitory concentration (MIC) higher than 200 mg/L of Ni2+ and V5+ each. Nickel and Vanadium removal was evaluated in 9 K liquid medium added with spent catalyst at 16% (s/v) pulp density and incubated at 30 °C, 150 rpm for 7 days. Only three isolates which were coded as PRGSd-MS-2, MNSH2-AH-3, and MNSS-AH-4 showed a significant removal at the end of treatment corresponding in mg kg-1 (or percentage metal removal) of 138 (32%), 123 (29%), and 101 (24%) for Ni, respectively; and 557 (26%), 737 (34%), and 456 (21%) mg kg-1 for V, respectively. The same isolates were capable to remove also Al, Fe, As, and Mg at different extent. Cell morphology changes were observed, in comparison to the control system at the end of biological treatment as a higher quantity of spores for MNSH2-AH-3, 2 μm cells in pairs for MNSS-AH-4, also long chain-vegetative cells having inclusions into the cell surface were observed for PRGSd-MS-2. The three isolated microorganisms were identified by sequencing of the 16S gene as Bacillus thuringiensis, Bacillus megaterium, and Bacillus sp, respectively, suggesting its potential use in the treatment of this solid industrial waste.
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Affiliation(s)
- Marlenne Gómez-Ramírez
- a Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada de Instituto Politécnico Nacional , Santiago de Querétaro , Querétaro , México
| | - Norma G Rojas-Avelizapa
- a Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada de Instituto Politécnico Nacional , Santiago de Querétaro , Querétaro , México
| | - Regina Hernández-Gama
- a Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada de Instituto Politécnico Nacional , Santiago de Querétaro , Querétaro , México
| | - Sergio A Tenorio-Sánchez
- b Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , Ciudad de México , México
| | - Edgar O López-Villegas
- b Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , Ciudad de México , México
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Zou Q, Gao Y, Yi S, Jiang J, Aihemaiti A, Li D, Yang M. Multi-step column leaching using low-molecular-weight organic acids for remediating vanadium- and chromium-contaminated soil. Environ Sci Pollut Res Int 2019; 26:15406-15413. [PMID: 30941713 DOI: 10.1007/s11356-019-04915-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/19/2019] [Indexed: 06/09/2023]
Abstract
In soil, vanadium (V) contamination is commonly concomitant with chromium (Cr) contamination, which poses potential risks to humans, animals, and plants due to the transfer of toxic metals and the increase in their concentrations via the food chain or through direct exposure. This study applied a multi-step column leaching process using low-molecular-weight organic acids (LMWOAs) to treat V-contaminated soil from a smelter site that contains 2015.1 mg V kg-1 and 1060.3 mg Cr kg-1. After leaching three times with an equivalent solution/soil ratio of 0.3 mL/g using 1.0 M oxalic acid solution, the total removal rates reached 77.2% and 7.2% for V and Cr, respectively, while the removal rates of the extractable fractions reached 118.6% and 99.2% due to the reduction in residual fraction (F4) of toxic metals. Simultaneously, the distribution and redistribution of geochemical fractions of V and Cr were determined with a sequential extraction technique, and the greater proportion of potential mobile fractions of V (65.1%) may increase its leaching from soil relative to Cr (7.1%). In addition, a lower pH of the leaching agent increased the efficiency of the leaching process to an extent. Compared with batch extraction with a typical solution to soil ratio of 10 mL/g, multi-step column leaching used less agent and hence produced less wastewater. This strategy could reduce the mobilization and bioavailability of toxic metals, and potentially enhance in situ soil flushing for the remediation of V- and Cr- contaminated soil.
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Affiliation(s)
- Quan Zou
- School of Environment, Tsinghua University, Beijing, 10084, China.
| | - Yuchen Gao
- School of Environment, Tsinghua University, Beijing, 10084, China
| | - Soyoung Yi
- School of Environment, Tsinghua University, Beijing, 10084, China
| | - Jianguo Jiang
- School of Environment, Tsinghua University, Beijing, 10084, China.
| | | | - De'an Li
- School of Environment, Tsinghua University, Beijing, 10084, China
| | - Meng Yang
- School of Environment, Tsinghua University, Beijing, 10084, China
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Omidinasab M, Rahbar N, Ahmadi M, Kakavandi B, Ghanbari F, Kyzas GZ, Martinez SS, Jaafarzadeh N. Removal of vanadium and palladium ions by adsorption onto magnetic chitosan nanoparticles. Environ Sci Pollut Res Int 2018; 25:34262-34276. [PMID: 30291614 DOI: 10.1007/s11356-018-3137-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/03/2018] [Indexed: 05/15/2023]
Abstract
Chitosan (CS), synthesized from chitin chemically extracted from shrimp shells, was used for the synthesis of magnetic chitosan nanoparticles (Fe3O4-CSN), which makes the adsorbent easier to separate. Fe3O4-CSN was used for the removal of toxic metals such as vanadium (V(V)) and palladium (Pd(II)) ions from aqueous solutions. Influencing factors on the adsorption process such as pH, contact time, adsorbent dosage, and agitation speed were investigated. A competitive adsorption of V(V) and Pd(II) ions for the active sites was also studied. The monolayer maximum adsorption capacities (Qm) of 186.6 and 192.3 mg/g were obtained for V(V) and Pd(II) ions, respectively. The pseudo-second-order equation gave the best fit for the kinetic data, implying that chemisorption was the determining step. Freundlich model yielded a much better fit than the other adsorption models assessed (Langmuir, Temkin and Dubinin-Radushkevich). Thus, the adsorption of V(V) and Pd(II) ions onto Fe3O4-CSN is a combination of physical and chemical adsorption, as based on the kinetics and equilibrium study. Generally, physical adsorption is the mechanism that governs the system, while chemical adsorption is the slowest adsorption step that takes place. Thermodynamic studies displayed that the adsorption process was exothermic and spontaneous. Removal efficiencies of 99.9% for V(V) and 92.3% for Pd(II) ions were achieved, implying that Fe3O4-CSN adsorbent had an excellent ability for the removal of the metal ions from real industrial wastewaters without remarkable matrix effect. Graphical abstract ᅟ.
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Affiliation(s)
- Maryam Omidinasab
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nadereh Rahbar
- Nanotechnology Research Center, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Babak Kakavandi
- Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran
- Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran
| | - Farshid Ghanbari
- Department of Environmental Health Engineering, Abadan School of Medical Sciences, Abadan, Iran
| | - George Z Kyzas
- Hephaestus Advanced Laboratory, Eastern Macedonia and Thrace Institute of Technology, Kavala, Greece
| | - Susana Silva Martinez
- Centro de Investigaciones en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Mor, Mexico
| | - Neemat Jaafarzadeh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Cui Y, Bao S, Zhang Y, Duan J. Adsorption characteristics of vanadium on different resin-active carbon composite electrodes in capacitive deionization. Chemosphere 2018; 212:34-40. [PMID: 30138853 DOI: 10.1016/j.chemosphere.2018.07.175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/27/2018] [Accepted: 07/29/2018] [Indexed: 06/08/2023]
Abstract
Three kinds of anion exchange resins (AERs) (D201, D301, D314) and one kind of cation exchange resin (D860) were used with activated carbon (AC) to fabricated the ion exchange resin-AC (IER/AC) composite electrodes in capacitive deionization (CDI) for selective adsorption of V(V). The characteristics of four kinds of composite electrodes, such as wettability, pore distribution and electrochemical properties, indicates IER/AC composite has great potential as electrode materials for the electro-adsorption in CDI. The pH of solution has apparent influence on the adsorption capacity of the composite electrodes for V(V) because of the various V(V) species in the solution with different pH. The reduction rate of V(V) on IER/AC electrodes mainly relates to the amount of VO2+ in solution. The adsorption capacity of AER/AC electrodes for V(V) is slightly affected by the applied voltage may be due to that the adsorption of V(V) is mainly dependent on ion exchange with AERs and only a minority of V(V) is adsorbed by electrostatic adsorption. The adsorbed V(V) on D860/AC electrode decreases with the rising applied voltage because the pH increases with the increase of voltage. The separation of V(V) from V(V), Al and P indicates that the selective adsorption capability of IER/AC composite electrode is related to the migration rate of V(V), Al, P at different voltages and the selectivity of resins. This study may provide reference for recovering and separating metal ions from aqueous solution with CDI.
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Affiliation(s)
- Yongyong Cui
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Shenxu Bao
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, 430070, PR China.
| | - Yimin Zhang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Jihuan Duan
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
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6
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Bao S, Duan J, Zhang Y. Recovery of V(V) from complex vanadium solution using capacitive deionization (CDI) with resin/carbon composite electrode. Chemosphere 2018; 208:14-20. [PMID: 29857207 DOI: 10.1016/j.chemosphere.2018.05.149] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 06/08/2023]
Abstract
The resin-activated carbon composite (RAC) electrodes were fabricated and applied in capacitive deionization for recovery of V(V) from complex vanadium solution. The adsorption capacity of the RAC electrode for V(V) is extremely low and the reduction of V(V) is significant in low pH solution, but the adsorbed V(V) on the electrode increases obviously and the reduction of V(V) gradually diminishes with the rise of pH. However, as the pH is increased to 10, the adsorbed V(V) on the RAC electrode declines. The higher applied potential is beneficial to the adsorption of V(V) and 1.0 V is appropriate for the adsorption. The impurities ions (Al, P and Si) are mainly adsorbed in the electric double layers on the RAC electrode and V(V) is dominantly adsorbed by the resins in the electrode. The adsorbed impurity ions can be easily removed by diluted H2SO4 and V(V) can be effectively eluted by 10% NaOH solution. The vanadium-bearing eluent can be recycled to recover and enrich vanadium from the complex solution. The performance of the RAC electrode keeps stable during the cyclic operation. This study may provide a promising and novel method for the recovery and separation of metals from aqueous solution.
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Affiliation(s)
- Shenxu Bao
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, 430070, PR China.
| | - Jihua Duan
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yimin Zhang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, 430070, PR China; Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource, Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, Wuhan University of Science and Technology, Wuhan, 430081, China.
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7
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Gomes HI, Funari V, Mayes WM, Rogerson M, Prior TJ. Recovery of Al, Cr and V from steel slag by bioleaching: Batch and column experiments. J Environ Manage 2018; 222:30-36. [PMID: 29800862 DOI: 10.1016/j.jenvman.2018.05.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/08/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
Steel slag is a major by-product of the steel industry and a potential resource of technology critical elements. For this study, a basic oxygen furnace (BOF) steel slag was tested for bacterial leaching and recovery of aluminium (Al), chromium (Cr), and vanadium (V). Mixed acidophilic bacteria were adapted to the steel slag up to 5% (w/v). In the batch tests, Al, Cr, and V were bioleached significantly more from steel slag than in control treatments. No statistical difference was observed arising from the duration of the leaching (3 vs 6 d) in the batch tests. Al and Cr concentrations in the leachate were higher for the smaller particle size of the steel slag (<75 μm), but no difference was observed for V. In the column tests, no statistical difference was found for pH, Al, Cr and V between the live culture (one-step bioleaching) and the supernatant (two-step bioleaching). The results show that the culture supernatant can be effectively used in an upscaled industrial application for metal recovery. If bioleaching is used in the 170-250 million tonnes of steel slag produced per year globally, significant recoveries of metals (100% of Al, 84% of Cr and 8% of V) can be achieved, depending on the slag composition. The removal and recovery percentages of metals from the leachate with Amberlite®IRA-400 are relatively modest (<67% and <5%, respectively), due to the high concentration of competing ions (SO42-, PO43-) in the culture medium. Other ion exchange resins can be better suited for the leachate or methods such as selective precipitation could improve the performance of the resin. Further research is needed to minimise interference and maximise metal recovery.
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Affiliation(s)
- Helena I Gomes
- School of Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Valerio Funari
- Department of Biological Geological and Environmental Sciences, University of Bologna, Piazza di Porta San Donato 1, I-40126, Bologna, Italy
| | - William M Mayes
- School of Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Mike Rogerson
- School of Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Timothy J Prior
- Chemistry, School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
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Thamilarasi MJV, Anilkumar P, Theivarasu C, Sureshkumar MV. Removal of vanadium from wastewater using surface-modified lignocellulosic material. Environ Sci Pollut Res Int 2018; 25:26182-26191. [PMID: 29974440 DOI: 10.1007/s11356-018-2675-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
Palm fruit husk, a lignocellulosic material, is an agricultural solid waste. Since raw palm fruit husk does not adsorb V (V), it was subjected to surface modification with a cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The surface-modified palm fruit husk showed adsorption capability for V (V). The maximum adsorption of V (V) takes place at pH 4. Adsorption equilibrium data were fitted to Langmuir, Freundlich, and Dubinin Radushkevich (D-R) isotherm models. Kinetic studies showed that the adsorption data fit second-order kinetic model better than first order. Desorption of V (V) proved that it is feasible to recover V (V) from the spent adsorbent. Effect of coexisting anions like Molybdate, sulfate, nitrate, phosphate, and thiocyanate on the adsorption of V (V) was also studied and the foreign ions compete for the adsorption sites with V (V) anionic species. Quantitative removal of V (V) was achieved from synthetic wastewater.
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Affiliation(s)
| | - Premkumar Anilkumar
- Department of Chemistry, KPR Institute of Engineering and Technology, Arasur, Coimbatore, 641407, India
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Zhu X, Li W, Tang S, Zeng M, Bai P, Chen L. Selective recovery of vanadium and scandium by ion exchange with D201 and solvent extraction using P507 from hydrochloric acid leaching solution of red mud. Chemosphere 2017; 175:365-372. [PMID: 28236706 DOI: 10.1016/j.chemosphere.2017.02.083] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 05/25/2023]
Abstract
D201 resin and P507 extractant diluted with sulfonated kerosene were used to respectively separate vanadium and scandium, and impurity ions from hydrochloric acid leaching solution of red mud. More than 99% of vanadium was selectively adsorbed from the hydrochloric acid leaching solution under the conditions of pH value of 1.8, volume ratio of leaching solution to resin of 10, and flow rate of 3.33 mL/min. Maximum extraction and separation of scandium was observed from the acid leaching solution at an aqueous pH value of 0.2. More than 99% of scandium can be selectively extracted using 15% P507, 5% TBP at the aqueous solution/organic phase (A/O) ratio of 10:1 for 6 min. The loaded organic phase was washed with 0.3 mol/L sulfuric acid, wherein most impurities were removed. After the process of desorption or stripping, precipitation, and roasting, high-purity V2O5 and Sc2O3 were obtained. Finally, a conceptual flow sheet was established to separate and recover vanadium and scandium from red mud hydrochloric acid leaching solution.
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Affiliation(s)
- Xiaobo Zhu
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China.
| | - Wang Li
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China.
| | - Sen Tang
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China
| | - Majian Zeng
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China
| | - Pengyuan Bai
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China
| | - Lunjian Chen
- School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China; Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, China
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Li Z, Chen M, Zhang Q, Liu X, Saito F. Mechanochemical processing of molybdenum and vanadium sulfides for metal recovery from spent catalysts wastes. Waste Manag 2017; 60:734-738. [PMID: 27422050 DOI: 10.1016/j.wasman.2016.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/27/2016] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Abstract
This work describes the mechanochemical transformations of molybdenum and vanadium sulfides into corresponding molybdate and vanadate, to serve as a new environment-friendly approach for processing hazardous spent hydrodesulphurization (HDS) catalysts solid waste to achieve an easy recovery of not only molybdenum and vanadium but also nickel and cobalt. Co-grinding the molybdenum and vanadium sulfides with oxidants and sodium carbonate stimulates solid-state reactions without any heating aid to form metal molybdates and vanadates. The reactions proceed with an increase in grinding time and were enhanced by using more sodium carbonate and stronger oxidant. The necessary conditions for the successful transformation can be explained on the basis of thermodynamic analyses, namely a negative change in Gibbs free energy.
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Affiliation(s)
- Zhao Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Min Chen
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Qiwu Zhang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Xinzhong Liu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China
| | - Fumio Saito
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Dong P, Maneerung T, Ng WC, Zhen X, Dai Y, Tong YW, Ting YP, Koh SN, Wang CH, Neoh KG. Chemically treated carbon black waste and its potential applications. J Hazard Mater 2017; 321:62-72. [PMID: 27607934 DOI: 10.1016/j.jhazmat.2016.08.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 07/30/2016] [Accepted: 08/27/2016] [Indexed: 06/06/2023]
Abstract
In this work, carbon black waste - a hazardous solid residue generated from gasification of crude oil bottom in refineries - was successfully used for making an absorbent material. However, since the carbon black waste also contains significant amounts of heavy metals (especially nickel and vanadium), chemical leaching was first used to remove these hazardous impurities from the carbon black waste. Acid leaching with nitric acid was found to be a very effective method for removal of both nickel and vanadium from the carbon black waste (i.e. up to 95% nickel and 98% vanadium were removed via treatment with 2M nitric acid for 1h at 20°C), whereas alkali leaching by using NaOH under the same condition was not effective for removal of nickel (less than 10% nickel was removed). Human lung cells (MRC-5) were then used to investigate the toxicity of the carbon black waste before and after leaching. Cell viability analysis showed that the leachate from the original carbon black waste has very high toxicity, whereas the leachate from the treated samples has no significant toxicity. Finally, the efficacy of the carbon black waste treated with HNO3 as an absorbent for dye removal was investigated. This treated carbon black waste has high adsorption capacity (∼361.2mg dye/g carbonblack), which can be attributed to its high specific surface area (∼559m2/g). The treated carbon black waste with its high adsorption capacity and lack of cytotoxicity is a promising adsorbent material. Moreover, the carbon black waste was found to show high electrical conductivity (ca. 10S/cm), making it a potentially valuable source of conductive material.
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Affiliation(s)
- Pengwei Dong
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Thawatchai Maneerung
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Wei Cheng Ng
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Xu Zhen
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Yanjun Dai
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yen Wah Tong
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Yen-Peng Ting
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Shin Nuo Koh
- Sembcorp Industries Ltd., 30 Hill Street #05-04, 179360, Singapore
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Koon Gee Neoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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12
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Gomes HI, Jones A, Rogerson M, Burke IT, Mayes WM. Vanadium removal and recovery from bauxite residue leachates by ion exchange. Environ Sci Pollut Res Int 2016; 23:23034-23042. [PMID: 27581051 PMCID: PMC5101287 DOI: 10.1007/s11356-016-7514-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 08/23/2016] [Indexed: 05/12/2023]
Abstract
Bauxite residue is an important by-product of the alumina industry, and current management practices do not allow their full valorisation, especially with regard to the recovery of critical metals. This work aims to test the efficiency of ion exchange resins for vanadium (V) removal and recovery from bauxite residue leachates at alkaline pH (11.5 and 13). As an environmental pollutant, removal of V from leachates may be an obligation of bauxite residue disposal areas (BRDA) long-term management requirements. Vanadium removal from the leachate can be coupled with the recovery, and potentially can be used to offset long-term legacy treatment costs in legacy sites. Kinetics studies were performed to understand the adsorption process. The rate kinetics for the V adsorption was consistent with the pseudo-first-order kinetic model, with a higher adsorption rate for pH 11.5 (1.2 min-1). Adsorption isotherm data fitted better to Freundlich equations than to the Langmuir model. The maximum adsorption capacity (Langmuir value q max) was greatest for pH 13 (9.8 mg V g-1 resin). In column tests, breakthrough was reached at 70 bed volumes with the red mud leachate at pH 13, while no breakthrough was achieved with the effluent at pH 11.5. In regeneration, 42 and 76 % of V were eluted from the resin with 2 M NaOH from the red mud leachate at pH 13 and 11.5, respectively. Further optimization will be needed to upscale the treatment.
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Affiliation(s)
- Helena I Gomes
- School of Biological, Biomedical and Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Ashley Jones
- School of Biological, Biomedical and Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Mike Rogerson
- Department of Geography, Environment and Earth Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Ian T Burke
- School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
| | - William M Mayes
- School of Biological, Biomedical and Environmental Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
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13
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Rasoulnia P, Mousavi SM. Maximization of organic acids production by Aspergillus niger in a bubble column bioreactor for V and Ni recovery enhancement from power plant residual ash in spent-medium bioleaching experiments. Bioresour Technol 2016; 216:729-736. [PMID: 27295250 DOI: 10.1016/j.biortech.2016.05.114] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 06/06/2023]
Abstract
Spent-medium bioleaching of V and Ni from a power plant residual ash (PPR ash) was conducted using organic acids produced by Aspergillus niger. The production of organic acids in a bubble column bioreactor was optimized through selecting three most influencing factors. Under optimum condition of aeration rate of 762.5(ml/min), sucrose concentration of 101.9(g/l) and inoculum size of 40(ml/l), respectively 17,185, 4539, 1042 and 502(ppm) of oxalic, gluconic, citric and malic acids were produced. Leaching experiments were carried out using biogenic produced organic acids under leaching environment temperature of 60°C and rotary shaking speed of 135rpm, with various pulp densities of 1, 2, 3, 5, 7 and 9(%w/v). The results showed that biogenic produced organic acids leached V much more efficiently than Ni so that even at high pulp density of 9(%w/v), 83% of V was recovered while Ni recovery yield was 30%.
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Affiliation(s)
- P Rasoulnia
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| | - S M Mousavi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran.
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14
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Yang J, Teng Y, Zuo R, Song L. Comparison of bioavailable vanadium in alfalfa rhizosphere soil extracted by an improved BCR procedure and EDTA, HCl, and NaNO₃ single extractions in a pot experiment with V-Cd treatments. Environ Sci Pollut Res Int 2015; 22:8833-8842. [PMID: 23807559 DOI: 10.1007/s11356-013-1917-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Accepted: 06/07/2013] [Indexed: 06/02/2023]
Abstract
The BCR sequential extraction procedure was compared with EDTA, HCl, and NaNO3 single extractions for evaluating vanadium bioavailability in alfalfa rhizosphere soil. The amounts of vanadium extracted by these methods were in the following order: BCR (bioavailable V) > EDTA ≈ HCl > NaNO3. Both correlation analysis and stepwise regression were adopted to illustrate the extractable vanadium between different reagents. The correlation coefficients between extracted vanadium and the vanadium contents in alfalfa roots were R NaNO3 = 0.948, R HCl = 0.902, R EDTA = 0.816, and R bioavailable V = 0.819. The stepwise multiple regression equation of the NaNO3 extraction was the most significant at a 95 % confidence interval. The influence of pH, total organic carbon, and cadmium content of soil to vanadium bioavailability were not definite. In summary, both the BCR sequential extraction and the single extraction methods were valid approaches for predicting vanadium bioavailability in alfalfa rhizosphere soil, especially the single extractions.
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Affiliation(s)
- Jie Yang
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
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15
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Zhang B, Tian C, Liu Y, Hao L, Liu Y, Feng C, Liu Y, Wang Z. Simultaneous microbial and electrochemical reductions of vanadium (V) with bioelectricity generation in microbial fuel cells. Bioresour Technol 2015; 179:91-97. [PMID: 25536507 DOI: 10.1016/j.biortech.2014.12.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/03/2014] [Accepted: 12/04/2014] [Indexed: 05/20/2023]
Abstract
Simultaneous microbial and electrochemical reductions of vanadium (V) with bioelectricity generation were realized in microbial fuel cells (MFCs). With initial V(V) concentrations of 75 mg/l and 150 mg/l in anolyte and catholyte, respectively, stable power output of 419±11 mW/m(2) was achieved. After 12h operation, V(V) concentration in the catholyte decreased to the value similar to that of the initial one in the anolyte, meanwhile it was nearly reduced completely in the anolyte. V(IV) was the main reduction product, which subsequently precipitated, acquiring total vanadium removal efficiencies of 76.8±2.9%. Microbial community analysis revealed the emergence of the new species of Deltaproteobacteria and Bacteroidetes as well as the enhanced Spirochaetes mainly functioned in the anode. This study opens new pathways to successful remediation of vanadium contamination.
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Affiliation(s)
- Baogang Zhang
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China.
| | - Caixing Tian
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Ying Liu
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Liting Hao
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Ye Liu
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Chuanping Feng
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Yuqian Liu
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
| | - Zhongli Wang
- School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China; Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China
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16
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Tian L, Yang J, Alewell C, Huang JH. Speciation of vanadium in Chinese cabbage (Brassica rapa L.) and soils in response to different levels of vanadium in soils and cabbage growth. Chemosphere 2014; 111:89-95. [PMID: 24997904 DOI: 10.1016/j.chemosphere.2014.03.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 03/04/2014] [Accepted: 03/07/2014] [Indexed: 06/03/2023]
Abstract
This study highlights the accumulation and speciation of vanadium in Chinese cabbage (Brassica rapa L.) in relation to the speciation of soil vanadium with pot experiments at 122-622mgVkg(-1) by spiking NH4VO3. Cabbage planting decreased the bioavailable and residual vanadium based on sequential extraction, leading to enrichment of oxalate-extractable vanadium in soils. The biomass production increased with increasing concentrations of soil vanadium from 122 to 372mgVkg(-1), probably due to the increasing nitrogen availability and low vanadium availability in our soils with a consequent low vanadium toxicity. Although the concentrations of root vanadium (14.4-24.9mgVkg(-1)) related positively with soil vanadium, the bio-dilution alleviated the increase of leaf vanadium (2.1-2.7mgVkg(-1)). The predominance of vanadium(IV) in leaves (∼60-80% of total vanadium) indicates bio-reduction of vanadium in Chinese cabbage, since the mobile vanadium in oxic soils was usually pentavalent. Approximately 15-20% of the leaf vanadium was associated with recalcitrant leaf tissues. The majority of leaf vanadium was water and ethanol extractable, which is considered mobile and may cause more toxic effects on Chinese cabbage.
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Affiliation(s)
- Liyan Tian
- College of Architecture and Environment, Sichuan University, Chengdu 610065, People's Republic of China; Environmental Geosciences, University of Basel, CH-4056 Basel, Switzerland
| | - Jinyan Yang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, People's Republic of China.
| | - Christine Alewell
- Environmental Geosciences, University of Basel, CH-4056 Basel, Switzerland
| | - Jen-How Huang
- Environmental Geosciences, University of Basel, CH-4056 Basel, Switzerland.
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17
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Rocchetti L, Fonti V, Vegliò F, Beolchini F. An environmentally friendly process for the recovery of valuable metals from spent refinery catalysts. Waste Manag Res 2013; 31:568-576. [PMID: 23393098 DOI: 10.1177/0734242x13476364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The present study dealt with the whole valorization process of exhaust refinery catalysts, including metal extraction by ferric iron leaching and metal recovery by precipitation with sodium hydroxide. In the leaching operation the effects on metal recovery of the concentration and kind of acid, the concentration of catalyst and iron (III) were determined. The best operating conditions were 0.05 mol L(-1) sulfuric acid, 40 g L(-1) iron (III), 10% catalyst concentration; almost complete extraction of nickel and vanadium, and 50%extraction efficiency of aluminium and less than 20% for molybdenum. Sequential precipitation on the leach liquor showed that it was not possible to separate metals through such an approach and a recovery operation by means of a single-stage precipitation at pH 6.5 would simplify the procedures and give a product with an average content of iron (68%), aluminium (13%), vanadium (11%), nickel (6%) and molybdenum (1%) which would be potentially of interest in the iron alloy market. The environmental sustainability of the process was also assessed by means of life cycle assessment and yielded an estimate that the highest impact was in the category of global warming potential with 0.42 kg carbon dioxide per kg recovered metal.
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Affiliation(s)
- Laura Rocchetti
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy.
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18
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Teng Y, Yang J, Wang J, Song L. Bioavailability of vanadium extracted by EDTA, HCl, HOAC, and NaNO3 in topsoil in the Panzhihua urban park, located in southwest China. Biol Trace Elem Res 2011; 144:1394-404. [PMID: 21614562 DOI: 10.1007/s12011-011-9082-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 05/11/2011] [Indexed: 11/28/2022]
Abstract
Bioavailable vanadium was evaluated on the basis of soil vanadium single-extraction with ethylenediaminetetraacetic acid (EDTA), hydrochloric acid (HCl), acetic acid (HOAc), and sodium nitrate (NaNO(3)) in Panzhihua urban park. The soil vanadium concentration extracted by HOAc was 0.01-2.07 mg kg(-1), by EDTA 0.28-7.03 mg kg(-1), by NaNO(3) 0.07-0.53 mg kg(-1), and by HCl 0.19-1.36 mg kg(-1). The bioavailable vanadium (bioavailable fraction) obtained with HOAc was 0.01-1.33%, with EDTA 0.27-4.09%, with NaNO(3) 0.13-0.72%, and with HCl 0.06-0.28%. In addition, the impact of soil properties, soil nutrients, and soil enzyme activities on bioavailability of vanadium is discussed in this study. Based on the characteristics of bioavailable vanadium in the soil, ecological and health risks should have been given more attention in the studied area.
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Affiliation(s)
- Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
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19
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Khan S, Kazi TG, Baig JA, Kolachi NF, Afridi HI, Wadhwa SK, Shah AQ, Kandhro GA, Shah F. Cloud point extraction of vanadium in pharmaceutical formulations, dialysate and parenteral solutions using 8-hydroxyquinoline and nonionic surfactant. J Hazard Mater 2010; 182:371-376. [PMID: 20619536 DOI: 10.1016/j.jhazmat.2010.06.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Revised: 06/04/2010] [Accepted: 06/10/2010] [Indexed: 05/29/2023]
Abstract
A cloud point extraction (CPE) method has been developed for the determination of trace quantity of vanadium ions in pharmaceutical formulations (PF), dialysate (DS) and parenteral solutions (PS). The CPE of vanadium (V) using 8-hydroxyquinoline (oxine) as complexing reagent and mediated by nonionic surfactant (Triton X-114) was investigated. The parameters that affect the extraction efficiency of CPE, such as pH of sample solution, concentration of oxine and Triton X-114, equilibration temperature and time period for shaking were investigated in detail. The validity of CPE of V was checked by standard addition method in real samples. The extracted surfactant-rich phase was diluted with nitric acid in ethanol, prior to subjecting electrothermal atomic absorption spectrometry. Under these conditions, the preconcentration of 50 mL sample solutions, allowed raising an enrichment factor of 125-fold. The lower limit of detection obtained under the optimal conditions was 42 ng/L. The proposed method has been successfully applied to the determination of trace quantity of V in various pharmaceutical preparations with satisfactory results. The concentration ranges of V in PF, DS and PS samples were found in the range of 10.5-15.2, 0.65-1.32 and 1.76-6.93 microg/L, respectively.
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Affiliation(s)
- Sumaira Khan
- Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
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20
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Xiong C, Qin Y, Hu B. On-line separation/preconcentration of V(IV)/V(V) in environmental water samples with CTAB-modified alkyl silica microcolumn and their determination by inductively coupled plasma-optical emission spectrometry. J Hazard Mater 2010; 178:164-170. [PMID: 20133063 DOI: 10.1016/j.jhazmat.2010.01.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 12/24/2009] [Accepted: 01/08/2010] [Indexed: 05/28/2023]
Abstract
A simple and selective method of flow injection microcolumn separation/preconcentration on-line coupled with inductively coupled plasma-optical emission spectrometry (ICP-OES) was developed for the speciation of V(V)/(IV). Various factors affecting the separation/preconcentration of V(IV) and V(V) by conical microcolumn packed with cetyltrimethylammonium bromide (CTAB)-modified alkyl silica have been systematically investigated. It is found that V(V) was quantitatively retained by the microcolumn at pH 2.0-7.0, while V(IV) was not retained by the microcolumn at pH 2.0-3.5 but quantitatively retained at pH 5.0-7.0. The two vanadium species adsorbed by the modified adsorbent were quantitatively desorbed by 0.10 mL of 1.0 mol L(-1) HNO(3). Therefore, V(V) and total vanadium could be determined by CTAB-modified alkyl silica packed microcolumn separation/preconcentration and on-line ICP-OES detection after adjusting sample solution to pH 2.5 and 6.0, respectively, and the assay of V(IV) was realized by subtracting V(V) from total V. The detection of limit (LOD) for V(V) was 0.03 microg L(-1) with an enrichment factor of 27.9 for a 3.0 mL sample consumption. The relative standard deviations (RSDs) (C(V(V))=C(V(IV))=5.0 microg L(-1), n=9) were 4.3% and 4.0% for V(V) and total V, respectively. The developed method was validated by the determination of V(IV) and V(V) in environmental water samples.
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Affiliation(s)
- Chaomei Xiong
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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21
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Berton P, Martinis EM, Wuilloud RG. Development of an on-line temperature-assisted ionic liquid dispersive microextraction system for sensitive determination of vanadium in environmental and biological samples. J Hazard Mater 2010; 176:721-728. [PMID: 20006437 DOI: 10.1016/j.jhazmat.2009.11.094] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 11/17/2009] [Accepted: 11/18/2009] [Indexed: 05/28/2023]
Abstract
An original flow injection (FI) system was developed for on-line microextraction of Vanadium (V) based on room temperature ionic liquid (RTIL). Vanadium was complexed with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) at pH 4.0. A 40 microL-volume of 1-butyl-3-methylimidazolium hexafluorophosphate ([C(4)mim][PF(6)]) RTIL was mixed with 5 mL of sample solution containing the V-5-Br-PADAP complex. Then, a fully on-line temperature-assisted dispersion procedure was developed, followed by, analyte microextraction; and final on-line separation of the RTIL phase with a florisil-containing microcolumn. Vanadium was removed from the microcolumn with a 10% (v/v) nitric acid (in acetone) solution, and finally measured by electrothermal atomic absorption spectrometry (ETAAS). The detection limit achieved after preconcentration of 5 mL of sample solution, was 4.8 ng L(-1). The relative standard deviation (RSD) for 10 replicate determinations at 5 microg L(-1) of vanadium level was 4.1%, calculated from the obtained peak heights. The calibration graph was linear, with a correlation coefficient of 0.9982 at levels from the detection limits up to 15 microg L(-1). The method was successfully applied for the determination of vanadium in environmental and biological samples.
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Affiliation(s)
- Paula Berton
- Analytical Chemistry Research and Development Group (QUIANID), LISAMEN-CCT-CONICET-Mendoza, Av. Ruiz Leal S/N Parque General San Martín, M 5502 IRA Mendoza, Argentina
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22
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Su T, Guan X, Tang Y, Gu G, Wang J. Predicting competitive adsorption behavior of major toxic anionic elements onto activated alumina: a speciation-based approach. J Hazard Mater 2010; 176:466-472. [PMID: 20004513 DOI: 10.1016/j.jhazmat.2009.11.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 10/05/2009] [Accepted: 11/06/2009] [Indexed: 05/28/2023]
Abstract
Toxic anionic elements such as arsenic, selenium, and vanadium often co-exist in groundwater. These elements may impact each other when adsorption methods are used to remove them. In this study, we investigated the competitive adsorption behavior of As(V), Se(IV), and V(V) onto activated alumina under different pH and surface loading conditions. Results indicated that these anionic elements interfered with each other during adsorption. A speciation-based model was developed to quantify the competitive adsorption behavior of these elements. This model could predict the adsorption data well over the pH range of 1.5-12 for various surface loading conditions, using the same set of adsorption constants obtained from single-sorbate systems. This model has great implications in accurately predicting the field capacity of activated alumina under various local water quality conditions when multiple competitive anionic elements are present.
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Affiliation(s)
- Tingzhi Su
- Department of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, 1870 Miner Circle, Rolla, MO 65401, USA
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23
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Yeom BY, Lee CS, Hwang TS. A new hybrid ion exchanger: effect of system parameters on the adsorption of vanadium (V). J Hazard Mater 2009; 166:415-420. [PMID: 19118945 DOI: 10.1016/j.jhazmat.2008.11.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Revised: 09/30/2008] [Accepted: 11/14/2008] [Indexed: 05/27/2023]
Abstract
The hybrid ion exchanger consisted of PONF-g-GMA anion fibrous exchanger and IRA-96 bead-type anion exchanger was developed by combining different types of layers with hot-melt adhesive. Its ion exchange capacity and the pressure drop with flow rate of water were measured and the adsorption of vanadium (V) ions on the hybrid ion exchanger was evaluated with various process parameters such as pH, initial concentration, and temperature. It was observed that the adsorption kinetics of vanadium (V) ions on the hybrid ion exchanger could be analyzed with pseudo-second-order model.
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Affiliation(s)
- Bong-Yeol Yeom
- Nonwovens Cooperative Research Center, College of Textiles, North Carolina State University, Raleigh, NC 27695-8301, USA
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24
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Zvinowanda CM, Okonkwo JO, Sekhula MM, Agyei NM, Sadiku R. Application of maize tassel for the removal of Pb, Se, Sr, U and V from borehole water contaminated with mine wastewater in the presence of alkaline metals. J Hazard Mater 2009; 164:884-91. [PMID: 18926626 DOI: 10.1016/j.jhazmat.2008.08.110] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 06/19/2008] [Accepted: 08/25/2008] [Indexed: 05/20/2023]
Abstract
In this study, the removal of Pb(II) from aqueous solutions by tassel powder was studied and optimised. Batch experiments were conducted on simulated solutions using tassel powder adsorbent and the effects of contact time, pH and concentration on the extent of Pb (II) removal was studied. Equilibrium and kinetic models for Pb(II) sorption were developed by considering the effect of contact time and concentration at optimum pH 4 and fixed temperature(25 degrees C). The Freundlich model was found to describe the sorption energetics of Pb(II) on tassel more fully than the Langmuir. A maximum Pb(II) loading capacity of 333.3mg/g on tassel was obtained. The adsorption process could be well described by both the Langmuir and Freundlich isotherms with R(2) values of 0.957 and 0.972, respectively. The kinetic parameters were obtained by fitting data from the effect of contact time on adsorption capacity into the pseudo-first, pseudo-second-order and intra-particle diffusion equations. The kinetics of Pb(II) on tassel surface was well defined using linearity coefficients (R(2)) by pseudo-second-order (0.999), followed by pseudo-first-order (0.795) and lastly intra-particle diffusion (0.6056), respectively. The developed method was then applied to environmental samples taken from borehole waters contaminated with mine wastewater. The removal of Pb (ND-100%), Se (100%), Sr (5.41-59.0%), U (100%) and V (46.1-100%) was attained using tassel. The uptake of the metals from environmental samples was dependent on pH, ionic strength and levels of other competing species.
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Affiliation(s)
- Caliphs M Zvinowanda
- Department of Environmental, Water & Earth Sciences, Faculty of Science, Tshwane University of Technology, Private Bag, Pretoria, South Africa.
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Kaczala F, Marques M, Hogland W. Lead and vanadium removal from a real industrial wastewater by gravitational settling/sedimentation and sorption onto Pinus sylvestris sawdust. Bioresour Technol 2009; 100:235-243. [PMID: 18664408 DOI: 10.1016/j.biortech.2008.05.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2007] [Revised: 05/27/2008] [Accepted: 05/29/2008] [Indexed: 05/26/2023]
Abstract
Batch sorption with untreated Pinus sylvestris sawdust after settling/sedimentation phase to remove vanadium and lead from a real industrial wastewater was investigated using different adsorbent doses, initial pH, and contact time. The development of pH along the sorption test and a parallel investigation of metals release from sawdust in distilled water were carried out. In order to evaluate kinetic parameters and equilibrium isotherms, Lagergren first-order, pseudo-second-order, intra-particle diffusion and Freundlich models were explored. When the initial pH was reduced from 7.4 to 4.0, the sorption efficiency increased from 32% to 99% for Pb and from 43% to 95% for V. Whereas, V removal was positively correlated with the adsorbent dose, Pb removal was not. The sorption process was best described by pseudo-second-order kinetics. According to Freundlich parameters (K(f) and n) sawdust presented unfavourable intensity for sorption of V.
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Affiliation(s)
- F Kaczala
- Faculty of Natural Sciences and Technology, School of Pure and Applied Natural Sciences, University of Kalmar, Kalmar, Sweden.
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Font O, Querol X, Juan R, Casado R, Ruiz CR, López-Soler A, Coca P, García Peña F. Recovery of gallium and vanadium from gasification fly ash. J Hazard Mater 2007; 139:413-23. [PMID: 16600480 DOI: 10.1016/j.jhazmat.2006.02.041] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The Puertollano Integrated Coal Gasification Combined Cycle (IGCC) Power Plant (Spain) fly ash is characterized by a relatively high content of Ga and V, which occurs mainly as Ga2O3 and as Ga3+ and V3+ substituting for Al3+ in the Al-Si fly ash glass matrix. Investigations focused on evaluating the potential recovery of Ga and V from these fly ashes. Several NaOH based extraction tests were performed on the IGCC fly ash, at different temperatures, NaOH/fly ash (NaOH/FA) ratios, NaOH concentrations and extraction times. The optimal Ga extraction conditions was determined as 25 degrees C, NaOH 0.7-1 M, NaOH/FA ratio of 5 L/kg and 6 h, attaining Ga extraction yields of 60-86%, equivalent to 197-275 mg of Ga/kg of fly ash. Re-circulation of leachates increased initial Ga concentrations (25-38 mg/L) to 188-215 mg/L, while reducing both content of impurities and NaOH consumption. Carbonation of concentrated Ga leachate demonstrated that 99% of the bulk Ga content in the leachate precipitates at pH 7.4. At pH 10.5 significant proportions of impurities, mainly Al (91%), co-precipitate while >98% of the bulk Ga remains in solution. A second carbonation of the remaining solution (at pH 7.5) recovers the 98.8% of the bulk Ga. Re-dissolution (at pH 0) of the precipitate increases Ga purity from 7 to 30%, this being a suitable Ga end product for further purification by electrolysis. This method produces higher recovery efficiency than currently applied for Ga on an industrial scale. In contrast, low V extraction yields (<64%) were obtained even when using extreme alkaline extraction conditions, which given the current marked price of this element, limits considerably the feasibility of V recovery from IGCC fly ash.
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Affiliation(s)
- Oriol Font
- Institute of Earth Sciences Jaume Almera, CSIC, Lluis Solé i Sabarís, s/n, 08028 Barcelona, Spain.
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Navarro R, Guzman J, Saucedo I, Revilla J, Guibal E. Vanadium recovery from oil fly ash by leaching, precipitation and solvent extraction processes. Waste Manag 2007; 27:425-38. [PMID: 16563726 DOI: 10.1016/j.wasman.2006.02.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2004] [Revised: 12/19/2005] [Accepted: 02/07/2006] [Indexed: 05/08/2023]
Abstract
In order to reduce the environmental impact due to land disposal of oil fly ash from power plants and to valorize this waste material, the removal of vanadium was investigated using leaching processes (acidic and alkaline treatments), followed by a second step of metal recovery from leachates involving either solvent extraction or selective precipitation. Despite a lower leaching efficiency (compared to sulfuric acid), sodium hydroxide was selected for vanadium leaching since it is more selective for vanadium (versus other transition metals). Precipitation was preferred to solvent extraction for the second step in the treatment since: (a) it is more selective; enabling complete recovery of vanadate from the leachate in the form of pure ammonium vanadate; and (b) stripping of the loaded organic phase (in the solvent extraction process) was not efficient. Precipitation was performed in a two-step procedure: (a) aluminum was first precipitated at pH 8; (b) then ammonium chloride was added at pH 5 to bring about vanadium precipitation.
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Affiliation(s)
- R Navarro
- Universidad de Guanajuato, Instituto de Investigaciones Científicas, Cerro de la Venada s/n, Pueblito de Rocha, C.P. 36040 Guanajuato, Gto, Mexico
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Abstract
Cation-exchange displacement chromatography of VO2+ was carried out for studying vanadium isotope effects in carboxylate ligand-exchange systems. The heavier isotope 51V was enriched in the carboxylate complex solution. The isotope separation coefficients epsilon(= alpha-1) for 50V/51V were 2.2 x 10(-4) and 2.4 x 10(-4) for citrate and lactate systems at 298 K, respectively. These values are much larger than those obtained in a previous study on the malate system. The existence of binuclear complexes of VO2+ may create the conditions for larger isotope fractionation. From the viewpoint of the process development of isotope separation, the heights equivalent to a theoretical plate of these processes were analyzed and found to be very small in each system due to the homogeneous, small and highly porous resin used. Citrate may be better than the other tested systems for the vanadium isotope separation.
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Affiliation(s)
- Yong-Hong Zhang
- Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 0-okayama, Meguro-ku, Tokyo 152-8550, Japan
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Abstract
Slab-gel electrophoresis has been applied to the speciation of vanadium in serum. The electrophoresis separation is an adaptation of the blue native polyacrylamide gel electrophoresis separation necessary to ensure the stability of the vanadium-protein complex; Coomassie blue was used to shift the charges of the proteins and to stabilize the vanadium complex. The detection of the vanadium species was made possible by the use of the (48)V radiotracer and the phosphor-screen technology. The method was first developed using transferrin, incubated with (48)V, as a model. After it was proved that the vanadium-transferrin complex was stable during separation, the method was validated by separating serum incubated with (48)V. The efficiency of the separation was assessed according to two parameters: resolution and conservation of the species. First, the resolution of the separation was as expected from a native separation. Second, the release of free vanadium from the transferrin complex, which was the main vanadium species expected, was negligible, which proves that the species remain intact during separation. In accordance with the literature, it was found that vanadium binds to transferrin in incubated serum at these low concentrations.
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Affiliation(s)
- Cyrille C Chéry
- Laboratory of Analytical Chemistry, Ghent University, Ghent, Belgium.
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Abstract
A speciation method for vanadium(IV) and vanadium(V) is presented that uses a combination of HPLC and ICP-AES. In this method, 1 mM HNO3 solution and 100 mM HNO3 solution were applied in sequence as eluent. A vanadium(IV) and vanadium(V) mixture was injected into a HPLC anion-exchange column; and vanadium(IV) cation was then eluted by 1 mM HNO3, while vanadium(V) oxoacid anion was trapped on the column. After this separation, vanadium(V) was eluted as a cation from the column by 100 mM HNO3. Vanadium was detected by ICP-AES. In this separation, about 15% of vanadium(V) interfered with vanadium(IV), and trace vanadium(IV) interfered with vanadium(V). This interference could be estimated by simple calculation based on standard observations, and the speciation of vanadium(IV) and vanadium(V) was performed. The lower determination limit was 1 microgram/mL, which is insufficient to speciate vanadium sampled by conventional sampling methods in a working environment. However, impurity of the other valent vanadium species in a vanadium(V) reagent can be determined by the present method, which should be valuable in precisely assessing the toxicities of vanadium species.
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Affiliation(s)
- M Takaya
- National Institute of Industrial Health, Kawasaki, Japan
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Buratti M, Pellegrino O, Caravelli G, Calzaferri G, Bettinelli M, Colombi A, Maroni M. Sensitive determination of urinary vanadium by solvent extraction and atomic absorption spectroscopy. Clin Chim Acta 1985; 150:53-8. [PMID: 4042363 DOI: 10.1016/0009-8981(85)90310-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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