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Oladipo B, Govender-Opitz E, Ojumu TV. Kinetics, Thermodynamics, and Mechanism of Cu(II) Ion Sorption by Biogenic Iron Precipitate: Using the Lens of Wastewater Treatment to Diagnose a Typical Biohydrometallurgical Problem. ACS OMEGA 2021; 6:27984-27993. [PMID: 34722998 PMCID: PMC8552342 DOI: 10.1021/acsomega.1c03855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Indexed: 06/13/2023]
Abstract
The feasibility of improving typical biohydrometallurgical operation to minimize copper losses was investigated by the use of biogenic iron precipitate for the uptake of Cu(II) ions from aqueous solutions. The iron precipitate was obtained from mineral sulfide bioleaching and characterized using SEM/EDS, XRD, FTIR, BET, TGA, and pHpzc analyses. The results show that the precipitate is highly heterogeneous and that Cu(II) ion adsorption can be described by both Freundlich and Langmuir adsorption isotherms, with a maximum adsorption capacity of 7.54 mg/g at 30 °C and 150 mg/L. The sorption followed pseudo-second-order kinetics, while the major presence of -OH and -NH2 functional groups initiated a chemisorption mechanism through an ion-exchange pathway for the process. Ionic Cu(II) (radius (0.72 Å)) attached easily to the active sites of the precipitate than hydrated Cu(II) (radius (4.19 Å)). With an estimated activation energy of 23.57 kJ/mol, the obtained thermodynamic parameters of ΔS° (0.034-0.050 kJ/mol K), ΔG° (8.37-10.64 kJ/mol), and ΔH° (20.07-23.81 kJ/mol) indicated that the adsorption process was chemically favored, nonspontaneous, and endothermic, respectively. The 43% Cu(II) removal within 60 min equilibrium contact time at pH 5 was indicative of the reduced efficiency of copper extraction observed in a real-life biohydrometallurgical process due to sorption by the iron precipitate. The result of this study might provide an insight into the management of the biohydrometallurgical process to minimize copper losses. It may also help mitigate environmental pollution caused by the disposal of these biogenic iron precipitate residues.
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Affiliation(s)
- Babatunde Oladipo
- Department
of Chemical Engineering, Cape Peninsula
University of Technology, Bellville, Cape Town 7535, South
Africa
| | - Elaine Govender-Opitz
- Department
of Chemical Engineering, University of Cape
Town, Rondebosch, Cape Town 7700, South
Africa
| | - Tunde V. Ojumu
- Department
of Chemical Engineering, Cape Peninsula
University of Technology, Bellville, Cape Town 7535, South
Africa
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Song Y, Yang L, Wang H, Sun X, Bai S, Wang N, Liang J, Zhou L. The coupling reaction of Fe 2+ bio-oxidation and resulting Fe 3+ hydrolysis drastically improve the formation of iron hydroxysulfate minerals in AMD. ENVIRONMENTAL TECHNOLOGY 2021; 42:2325-2334. [PMID: 31797752 DOI: 10.1080/09593330.2019.1701564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
The oxidation of Fe2+ by Acidithiobacillus ferrooxidans (A. ferrooxidans) in acid mine drainage (AMD) is often accompanied by formation of iron hydroxysulfate minerals, such as schwertmannite and jarosite. This study reported that 80 mmol L-1 of Fe2+ could be completely oxidized by A. ferrooxidans LX5 within 48 h, but only 27.7% of the resultant Fe3+ precipitated to form schwertmannite. However, the conversion efficiency to jarosite was much higher (54.5%). The formation of jarosite lasted 120 h, while only 24 h when conversed to schwertmannite. By constructing a cyclic process of 'Cu-reducing coupled with bio-oxidization', the total Fe in AMD could be fully converted into mineral precipitates. The resultant mineral specie could be regulated simply by control the K+ concentration. Thermodynamically, Fe3+ cannot hydrolyze spontaneously to form schwertmannite due to the positive Gibbs free energy (ΔrGm∘ = 6.63 kJ mol-1) of the reaction. However, if Fe2+ were biologically oxidized by A. ferrooxidans, the resultant Fe3+ could spontaneously form schwertmannite because the aforementioned coupling reaction has a negative Gibbs free energy (ΔrGm∘ = -34.12 kJ mol-1). Even though Fe3+ itself could hydrolyze to form jarosite spontaneously with ΔrGm∘ = -22.20 kJ mol-1, the coupling reaction of Fe2+ bio-oxidation followed by Fe3+ hydrolysis in the presence of K+ could easily promote the formation of jarosite, which exhibited a great negative Gibbs energy (ΔrGm∘ = -67.45 kJ mol-1).
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Affiliation(s)
- Yongwei Song
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, People's Republic of China
| | - Linlin Yang
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, People's Republic of China
| | - Heru Wang
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, People's Republic of China
| | - Xinxin Sun
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, People's Republic of China
| | - Shuangyou Bai
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Ning Wang
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Jianru Liang
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Lixiang Zhou
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, People's Republic of China
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S B, Manu B, M Y S. Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton's catalyst in selective herbicide degradation. PLoS One 2021; 16:e0243444. [PMID: 33784303 PMCID: PMC8009436 DOI: 10.1371/journal.pone.0243444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/23/2020] [Indexed: 11/23/2022] Open
Abstract
A novel isolated strain Acidithiobacillus ferrooxidans BMSNITK17 has been investigated for its bioleaching potential from lateritic soil and the results are presented. System conditions like pH, feed mineral particle size, pulp density, temperature, rotor speed influences bioleaching potential of Acidithiobcillus ferrooxidans BMSNITK17 in leaching out iron from laterite soil. Effect of sulfate addition on bioleaching efficiency is studied. The bioleached laterite iron (BLFe's) on evaluation for its catalytic role in Fenton's oxidation for the degradation of ametryn and dicamba exhibits 94.24% of ametryn degradation and 92.45% of dicamba degradation efficiency. Fenton's oxidation performed well with the acidic pH 3. The study confirms the role of Acidithiobacillus ferrooxidans in leaching iron from lateritic ore and the usage of bioleached lateritic iron as catalyst in the Fenton's Oxidation.
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Affiliation(s)
- Bhaskar S
- Department of Civil Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Basavaraju Manu
- Department of Civil Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Sreenivasa M Y
- Department of Studies in Microbiology, University of Mysore, Mysuru, Karnataka, India
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Srichandan H, Mohapatra RK, Singh PK, Mishra S, Parhi PK, Naik K. Column bioleaching applications, process development, mechanism, parametric effect and modelling: A review. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.07.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Wang X, Ma L, Wu J, Xiao Y, Tao J, Liu X. Effective bioleaching of low-grade copper ores: Insights from microbial cross experiments. BIORESOURCE TECHNOLOGY 2020; 308:123273. [PMID: 32247948 DOI: 10.1016/j.biortech.2020.123273] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
The interaction between microorganisms and minerals was a hot topic to reveal the transformation of key elements that affecting bioleaching efficiency. Three typical low-grade copper ores, the main copper-bearing components of which were primary sulfide, secondary sulfide and high-oxidative sulfide copper, were obtained from Dexing, Zijinshan and Luanshya copper mine, respectively. Meanwhile, six typical microorganisms were isolated from each of the three habitats, and assembled as communities based on their origins. Cross bioleaching was carried out under identical conditions. The leaching parameters showed that native strains played excellent roles in their corresponding ore bioleaching process, and community structure was greatly determined by mineral composition, indicating that domestication for longitudinal adaption was an effective way to improve microbial leaching performance. Leptospirillum ferriphilum and Acidithiobacillus ferrooxidans promoted copper release by shifting redox potential and pH of the leachate, respectively, indicating that microbial population regulation was another effective way to improve bioleaching efficiency.
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Affiliation(s)
- Xingjie Wang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China
| | - Liyuan Ma
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China.
| | - Jiangjun Wu
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Yunhua Xiao
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Jiemeng Tao
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China
| | - Xueduan Liu
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China
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Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00688-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Song Y, Zhang J, Wang H. Initial pH and K + concentrations jointly determine the types of biogenic ferric hydroxysulfate minerals and their effect on adsorption removal of Cr(VI) in simulated acid mine drainage. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:2183-2192. [PMID: 30629546 DOI: 10.2166/wst.2018.499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is of practical significance to promote the transformation of Fe in acid mine drainage (AMD) into ferric hydroxysulfate minerals with strong ability to remove heavy metals or metalloids. To investigate the types of biogenic ferric hydroxysulfate minerals generated in AMD by Acidithiobacillus ferrooxidans (A. ferrooxidans), different pH and K+ concentrations are tested for the formation of precipitates in media containing 160 mmol/L Fe2+. The Cr(VI) removal efficiencies of ferric hydroxysulfate minerals in AMD with different acidities are also compared. Results indicate that the mineralizing abilities of the initial pH levels (pH 3.0 > pH 2.5 > pH 2.0) and K+ concentrations (53.3 mmol/L > 3.2 mmol/L ≈ 0.8 mmol/L) differ, with cumulative Fe precipitation efficiencies of 58.7%, 58.0%, and 44.2% (K+ = 53.3 mmol/L), and 58.7%, 29.9%, and 29.6% (pH 3.0) after 96 h of A. ferrooxidans incubation, respectively. X-ray diffraction indicates that K-jarosites are formed in the treatments n(Fe)/n(K) = 0.1 and 3 at pH 2.0-3.0, while only schwertmannite is generated in a system of pH 3.0 and n(Fe)/n(K) = 200. X-ray photoelectron spectroscopy reveals that HCrO4 - may be adsorbed as an inner-sphere complex on schwertmannite when the AMD pH is 3.0.
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Affiliation(s)
- Yongwei Song
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China E-mail:
| | - Jianyu Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Heru Wang
- Department of Environmental Engineering, School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China E-mail:
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Song Y, Wang H, Yang J, Zhou L, Zhou J, Cao Y. Evaluation and optimization of a new microbial enhancement plug-flow ditch system for the pretreatment of acid mine drainage: semi-pilot test. RSC Adv 2018; 8:1039-1046. [PMID: 35538942 PMCID: PMC9076946 DOI: 10.1039/c7ra10765j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/17/2017] [Indexed: 12/05/2022] Open
Abstract
Acid mine drainage (AMD) is typically characterized by low pH, a high concentration of sulfate and dissolved heavy metals. Therefore, it is of practical significance to promote the transformation of soluble Fe and SO42− into iron hydroxysulfate minerals by biomineralization of Acidithiobacillus ferrooxidans. This enhances the lime neutralization efficiency of AMD by reducing the production of ferric hydroxide and waste gypsum. In this study, a new microbial enhanced plug-flow ditch reaction system was developed for the pretreatment of AMD on a semi-pilot scale. System stability under different hydraulic retention times (HRTs) was examined and the effects of microbe enhancement-lime neutralization technology and direct lime neutralization technology were compared. The bio-oxidation efficiency of Fe2+ (5 g L−1) reached 100% in some parts of the system when HRT was 3 and 2 days, and the time taken to reach steady state was 6 and 4 days, respectively. When the HRT was 1 day, the reaction system had operated for 4 days before the equilibrium was lost. At the optimum HRT (2 days) and after the system was stable, the average precipitation rate of total Fe was 53.62% and the average removal rate of As(iii) was 17.27%. Following microbial enhanced pretreatment, the amount of lime required and waste residues generated for AMD neutralization decreased by 75.00% and 85.25%, respectively. This result supports the application of microbial enhancement-lime neutralization passive treatment technology for AMD. Acid mine drainage (AMD) is typically characterized by low pH, a high concentration of sulfate and dissolved heavy metals.![]()
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Affiliation(s)
- Yongwei Song
- Department of Environmental Engineering
- School of Information and Safety Engineering
- Zhongnan University of Economics and Law
- Wuhan 430073
- China
| | - Heru Wang
- Department of Environmental Engineering
- School of Information and Safety Engineering
- Zhongnan University of Economics and Law
- Wuhan 430073
- China
| | - Jun Yang
- Department of Environmental Engineering
- School of Information and Safety Engineering
- Zhongnan University of Economics and Law
- Wuhan 430073
- China
| | - Lixiang Zhou
- Department of Environmental Engineering
- College of Resources and Environmental Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Jingcheng Zhou
- Department of Environmental Engineering
- School of Information and Safety Engineering
- Zhongnan University of Economics and Law
- Wuhan 430073
- China
| | - Yanxiao Cao
- Department of Environmental Engineering
- School of Information and Safety Engineering
- Zhongnan University of Economics and Law
- Wuhan 430073
- China
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