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Xie Z, Liu R, Lu F, Jing D, Zhao Y, Liang J, Huang W, Liu Y. Study on harmless treatment of electrolytic manganese residue by low temperature thermochemical method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:42342-42356. [PMID: 38872036 DOI: 10.1007/s11356-024-33932-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 06/03/2024] [Indexed: 06/15/2024]
Abstract
The Electrolytic Manganese Residue (EMR) is a by-product of the electrolytic manganese metal (EMM) industry, containing high concentrations of potential pollutants such as NH4+-N and soluble Mn2+. These components pose a serious threat to the ecological environment. To explore accurate, efficient, and harmless treatment methods for EMR, this study proposes a low-temperature thermochemical approach. The orthogonal experiment design investigates the effects of reaction temperature, reaction time, quicklime (CaO), sodium carbonate (Na2CO3), sodium phosphate (Na3PO4) (Reviewer #3), and water consumption on manganese solidified and ammonia removal from EMR. The results indicate that optimal conditions are a reaction temperature of 60 ℃ (Reviewer #3) and a reaction time of 10 min. CaO precipitates Mn2+ as manganese hydroxide (Mn(OH)2) (Reviewer #3), achieving effective manganese solidified and ammonia removal. The addition of Na2CO3 causes Mn2+ to form manganesecarbonate (MnCO3) (Reviewer #3)precipitate, while Na3PO4 makes Mn2+ form Manganese phosphate trihydrate (Mn3(PO4)2·3H2O) (Reviewer #3). Increased water consumption enhances the interaction adequacy between ions. Under optimal conditions (CaO 10%, Na2CO3 1%, Na3PO4 0.5%, and 80% water consumption), the removal rate of ammonium ions reaches 98.5%, and the solidification rate of soluble Mn2+ is 99.9%. The order of influence on ammonium ion removal is CaO > water consumption > Na3PO4 > Na2CO3. Therefore, this study provides a new method for low-cost process disposal and efficient harmless treatment of EMR (Reviewer #3).
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Affiliation(s)
- Zhihan Xie
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
| | - Rongjin Liu
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China.
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China.
- Key Laboratory of New Processing Technology for Nonferrous Metal & Materials, Ministry of Education, Guilin University of Technology, Guilin, 541004, China.
- Guangxi Engineering and Technology Center for Utilization of Industrial Waste Residue in Building Materials, Guilin, 541004, China.
| | - Fuhua Lu
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
| | - Daiyan Jing
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
| | - Yanrong Zhao
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
- Key Laboratory of New Processing Technology for Nonferrous Metal & Materials, Ministry of Education, Guilin University of Technology, Guilin, 541004, China
- Guangxi Engineering and Technology Center for Utilization of Industrial Waste Residue in Building Materials, Guilin, 541004, China
| | - Jianbo Liang
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
| | - Wanyu Huang
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
| | - Yuhang Liu
- College of Material Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin, 541004, China
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Mishra S, Ghosh S, van Hullebusch ED, Singh S, Das AP. A Critical Review on the Recovery of Base and Critical Elements from Electronic Waste-Contaminated Streams Using Microbial Biotechnology. Appl Biochem Biotechnol 2023; 195:7859-7888. [PMID: 36988841 DOI: 10.1007/s12010-023-04440-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 03/30/2023]
Abstract
Pollution by end-of-life electronics is a rapid ever-increasing threat and is a universal concern with production of million metric tons of these wastes per annum. Electronic wastes (E-waste) are rejected electric or electronic equipment which have no other applications. The aggrandized unproper land filling of E-waste may generate hazardous effects on living organisms and ecosystem. At present, millions of tons of E-waste await the advancement of more efficient and worthwhile recycling techniques. Recovery of base and critical elements from electronic scraps will not only reduce the mining of these elements from natural resources but also reduces the contamination caused by the hazardous chemicals (mostly organic micropollutants) released from these wastes when unproperly disposed of. Bioleaching is reported to be the most eco-friendly process for metal recycling from spent electronic goods. A detailed investigation of microbial biodiversity and a molecular understanding of the metabolic pathways of bioleaching microorganisms will play a vital function in extraction of valuable minerals from the end-of-life scraps. Bioleaching technique as an economic and green technology costs around 7 USD per kg for effective reusing of E-waste as compared to other physical and chemical techniques. This review provides a summary of worldwide scenario of electronic pollutants; generation, composition and hazardous components of electronic waste; recycling of valuable elements through bioleaching; mechanism of bioleaching; microorganisms involved in base and critical element recovery from E-waste; commercial bioleaching operations; and upcoming aspects of this eco-friendly technique.
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Affiliation(s)
- Sunanda Mishra
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India
| | | | - Eric D van Hullebusch
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, 75005, Paris, France
| | - Shikha Singh
- Department of Life Sciences, Rama Devi Women's University, 751022, Bhubaneswar, Odisha, India
| | - Alok Prasad Das
- Department of Life Sciences, Rama Devi Women's University, 751022, Bhubaneswar, Odisha, India.
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3
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Liu A, Bai Y, Wang C, Lin X, Guo F. Study on the removal of iron (II) and manganese (II) in acidic mine drainage by red mud: Performance and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117970-117980. [PMID: 37875753 DOI: 10.1007/s11356-023-30378-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/06/2023] [Indexed: 10/26/2023]
Abstract
Red mud is an environmental burden during the alumina production process. To mitigate the hazards associated with red mud storage, this study investigated the utilization of alkaline red mud as a treatment agent for acidic mine drainage (AMD) with high concentrations of Fe(II) and Mn(II). This study explored the influence of reaction times, addition amounts of red mud, and pH values on the removal efficiency of Fe (II) and Mn(II) from high-concentration AMD. Various parameters such as suspended solids levels, effluent pH, and zeta potentials were measured to meet discharge standards. The adsorption mechanism of red mud was examined using SEM, XRD, EDX, XPS, and 3D-EEM analysis. Optimal conditions were determined as a reaction time of 2 h, pH value of 5.01 and the addition of 100 g/L red mud, achieving effective removal of Fe(II) (reduced from 1000 to 0.224 mg/L) and Mn (II) (reduced from 20 to 1.03 mg/L). The treated AMD meets discharge standards with reduced suspended matter content of 37.4 mg/L. These findings provided valuable insights for the utilization of red mud waste in engineering applications.
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Affiliation(s)
- Ang Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 10012, China
| | - Yingchen Bai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 10012, China
| | - Chao Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 10012, China
- School of Environment, Liaoning University, Shenyang, 110036, Liaoning, China
| | - Xianglong Lin
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 10012, China
| | - Fei Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 10012, China.
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Zhang Q, Liang L, Jing M, Yan X, Peng Y. Bioleaching of available silicon from coal tailings using Bacillus mucilaginosus: a sustainable solution for soil improvement. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:93142-93154. [PMID: 37501029 DOI: 10.1007/s11356-023-28921-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
In China, a large amount of soil lack available silicon, which leads to a decrease in crop yield. Furthermore, the solid waste coal tailings contain abundant minerals that are rich in silicon, which have not been fully utilized. In this work, we used Bacillus mucilaginosus as the leaching agent to convert insoluble silicon in coal tailings into available silicon for crop. After single-factor experiments, the optimal leaching conditions with bacterial dosage, coal tailings weight, initial pH, leaching temperature, and shaking speed were obtained. Kinetic analysis showed that the controlling process of the leaching was a chemical reaction. The leaching process was characterized by X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), Fourier transform infrared spectrometer (FT-IR), and high-performance liquid chromatography (HPLC). The results showed that bioleaching is a feasible and efficient method to extract silicon from coal tailings, with a maximum leaching amount of 260 mg L-1 after 16 days, which occupied 93% of the total effective silicon. In conclusion, this work demonstrates that bioleaching technology can effectively solve the problem of the environmental utilization of coal tailings by converting them into a soil improver that can provide beneficial nutrients for crop growth.
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Affiliation(s)
- Qingshan Zhang
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
| | - Long Liang
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
| | - Mengjuan Jing
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
| | - Xinxin Yan
- Institute of Geochemistry Chinese Academy of Science, Guiyang, 550081, China
| | - Yaoli Peng
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
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5
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Han Z, Levett A, Edraki M, Jones MWM, Howard D, Southam G. Microbially influenced tungsten mobilization and formation of secondary minerals in wolframite tailings. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130508. [PMID: 36473257 DOI: 10.1016/j.jhazmat.2022.130508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/02/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Wolframite [(Fe,Mn)WO4] tailings represent a hazardous waste that can pose a threat to the environment, humans, animals and plants. The present study aims to conduct a high-resolution depth profile characterization of wolframite tailings from Wolfram Camp, North Queensland, Australia, to understand the biogeochemical influences on W mobilization. Several indigenous Fe- and S-oxidizing bacteria (e.g., Streptococcus pneumoniae and Thiomonas delicata) in wolframite tailings were found highly associated with W, As, and rare earth elements. Biooxidation of metal sulfides, i.e., pyrite, molybdenite and bismuthinite, produced sulfuric acid, which accelerated the weathering of wolframite, mobilizing tungstate (WO42-). Using synchrotron-based X-ray fluorescence microscopy (XFM) and W L-edge X-ray absorption near-edge spectroscopy (µ-XANES) analysis, wolframite was initially transformed into Na- and Bi- tungstate as well as tungstic acid (partial weathering) followed by the formation of Ga- and Zn- tungstate after extensive weathering, i.e., the wolframite had disappeared. While W (VI) was the major W species in wolframite tailings, minor W(0) and W(II), and trace W(IV) were also detected. The major contaminant in the Wolfram Camp tailings was As. Though wolframite tailings are hazardous waste, the toxicity of W was unclear. Tungsten waste still has industrial value; apart from using them as substitution material for cement and glass production, there is interest in reprocessing W waste for valuable metal recovery. If the environmental benefits are taken into consideration, i.e., preventing the release of toxic metals into surrounding waterways, reprocessing may be economic.
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Affiliation(s)
- Zhengdong Han
- WH Bryan Mining Geology Research Centre, Sustainable Minerals Institute, The University of Queensland, Brisbane, Qld 4068, Australia.
| | - Alan Levett
- Centre for Water in the Minerals Industry, Sustainable Minerals Institute, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Mansour Edraki
- Centre for Water in the Minerals Industry, Sustainable Minerals Institute, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Michael W M Jones
- Central Analytical Research Facility and School of Chemistry and Physics, Queensland University of Technology, Brisbane, Qld 4000, Australia
| | - Daryl Howard
- Australian Synchrotron, Melbourne, Vic 3168, Australia
| | - Gordon Southam
- School of Earth & Environmental Sciences, The University of Queensland, Brisbane, Qld 4072, Australia
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Zhou Y, He Y, Wang R, Mao Y, Bai J, Dou Y. Modification of Multiwalled Carbon Nanotubes and Their Mechanism of Demanganization. Molecules 2023; 28:molecules28041870. [PMID: 36838859 PMCID: PMC9963761 DOI: 10.3390/molecules28041870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Multiwalled carbon nanotubes (MWCNTs) were modified by oxidation and acidification with concentrated HNO3 and H2SO4, and the modified multiwalled carbon nanotubes (M-MWCNTs) and raw MWCNTs were characterized by several analytical techniques. Then the demanganization effects of MWCNTs and M-MWCNTs were well investigated and elucidated. The experimental data demonstrated that the adsorption efficiency of Mn(II) could be greatly promoted by M-MWCNTs from about 20% to 75%, and the optimal adsorption time was 6 h and the optimal pH was 6. The results of the kinetic model studies showed that Mn(II) removal by M-MWCNTs followed the pseudo-second-order model. Isothermal studies were conducted and the results demonstrated that the experimental data fitted well with the three models. The reliability of the experimental results was well verified by PSO-BP simulation, and the present conclusion could be used as a condition for further simulation. The research results provide a potential technology for promoting the removal of manganese from wastewater; at the same time, the application of various mathematical models also provides more scientific ideas for the research of the mechanism of adsorption of heavy metals by nanomaterials.
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Affiliation(s)
- Yuan Zhou
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yingying He
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Ruixue Wang
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yongwei Mao
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Jun Bai
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yan Dou
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Correspondence:
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Li C, Chai X, Liu H, Cheng H, Jia D, Di L, Qin S, Jin Y. Research on the Mechanical Properties and Microstructure of Modified Silt Sediment Geopolymer Materials. Gels 2022; 8:gels8120792. [PMID: 36547315 PMCID: PMC9778291 DOI: 10.3390/gels8120792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The treatment of silted sediment in the river is a global problem. The accumulation of waste sediment will lead to an adverse impact on the environment. In this paper, the silted sediment was reused to produce geopolymer composite materials via alkali-activated gelling modification. The effects of the modifiers of sodium silicate solution, quicklime, and Na2SO4 admixture, and the dosage of the slag, fly ash, and silica fume admixture, and curing conditions and age, on the compressive strength and microstructure of the geopolymer-modified sediment materials were studied. The crystalline phase and hydration products of the modified sediment geopolymer composites were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), respectively. A compressive strength test was conducted to evaluate the mechanical properties of the composites. The results showed that the type and dosage of modifier, amount of mineral admixture additive, cure conditions, and cure age had significant effects on the mechanical properties of the composites. The effect of the addition of mineral admixture on the compressive strength of the modified sediment specimens was more noticeable than that of the modifier. The compressive strength of the geopolymer-modified specimens was greatly increased by the addition of mineral dopants. When 10 wt.% silica fume is added, the compressive strength reaches a maximum value of 33.25 MPa at 60 days. The SEM-EDS results show that the C-S-H gels and C-A-S-H gels were the main hydration products. The results indicate that river siltation sediment is an excellent raw material for geopolymer-modified materials. It is feasible to produce reliable and sustainable hydraulic engineering materials by using river sediment geopolymer-modified materials.
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Affiliation(s)
- Changming Li
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
- International Joint Research Lab for Eco-Building Materials and Engineering of Henan, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
- Correspondence: (C.L.); (H.L.); Tel.: +86-371-6566-7990 (C.L.)
| | - Xiaoxiong Chai
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
| | - Hui Liu
- Engineering and Technical Research Center of Levee Safety and Disease Control, Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China
- Correspondence: (C.L.); (H.L.); Tel.: +86-371-6566-7990 (C.L.)
| | - Haifeng Cheng
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
| | - Dongyang Jia
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
| | - Longfei Di
- Power Construction Corporation of China, Henan Wanshan Green Building Materials Co., Ltd., Luoyang 471000, China
| | - Songlin Qin
- Power Construction Corporation of China, Henan Wanshan Green Building Materials Co., Ltd., Luoyang 471000, China
| | - Yongbao Jin
- Power Construction Corporation of China, Henan Wanshan Green Building Materials Co., Ltd., Luoyang 471000, China
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8
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Selective recovery of manganese and lead from electrolytic manganese residues in a sulfuric acid solution with galena as the reductant. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Mishra S, Dash D, Das AP. Detection, characterization and possible biofragmentation of synthetic microfibers released from domestic laundering wastewater as an emerging source of marine pollution. MARINE POLLUTION BULLETIN 2022; 185:114254. [PMID: 36306713 DOI: 10.1016/j.marpolbul.2022.114254] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Synthetic microfibers are universally recognized as an emerging pollutant in all ecosystems. The present investigation focuses on the evaluation and quantification of synthetic microfiber released from domestic laundering wastewater from different regions of Bhubaneswar city of Odisha state of India. The estimated number of microfibers collected from 500 ml of sample varied from 200 to 500 in numbers with an average amount of biomass in the range of 0.4-4 g. The surface morphology of the samples was assessed by Scanning Electron Microscopic analysis which revealed that the fibers were having a length of approximately 10-30 mm and diameter of 10-20 μm. Carbonyl (CO) stretching band at 1711 cm-1 and Aldehyde (CH) Weak bond at 2917.38 cm-1 absorption were recorded from Fourier transform infrared spectroscopic analysis. As microfibers released from synthetic apparels are major source of environmental microplastic pollution their precise detection could help in controlling this problem.
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Affiliation(s)
- Sunanda Mishra
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, India
| | - Debasis Dash
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, India
| | - Alok Prasad Das
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India.
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Tripathy B, Dash A, Das AP. Detection of Environmental Microfiber Pollutants through Vibrational Spectroscopic Techniques: Recent Advances of Environmental Monitoring and Future Prospects. Crit Rev Anal Chem 2022:1-11. [PMID: 36370114 DOI: 10.1080/10408347.2022.2144994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A robust environmental monitoring system is highly essential for the instant detection of environmental microfiber pollutants for the sustainable management of the environment and human health. The extent of microfiber pollution is growing exponentially across the globe in both terrestrial and marine environments. An immediate and accurate environmental monitoring system is crucial to investigate the composition and distribution of these micropollutants. Fourier Transform Infrared Spectroscopy and Raman Spectroscopy are vibrational spectroscopic techniques that have the novel ability to detect microfibers within a minute concentration from diverse environmental samples. The major micropollutants which have been analyzed are polyethylene, polypropylene, nylon 6, polystyrene, and polyethylene terephthalate. After a detailed and critical study of the various aspects of spectroscopic analysis, the review is concluded with a comprehensive discussion of the significance of these robust methods and their application in future aspects for further preventing microfiber pollution in the marine environment. This study highlights the utilities and significance of vibrational spectroscopic detection techniques for the immediate and accurate identification of synthetic microfibers. This review also evaluated the implementation of spectroscopic methods as a precise tool for the characterization and monitoring of microfiber pollutants in the environment.
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Affiliation(s)
- Banismita Tripathy
- Department of Life Sciences, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Akankshya Dash
- Department of Life Sciences, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Alok Prasad Das
- Department of Life Sciences, Rama Devi Women's University, Bhubaneswar, Odisha, India
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11
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A Review on Heavy Metal Ion Adsorption on Synthetic Microfiber Surface in Aquatic Environments. Appl Biochem Biotechnol 2022; 194:4639-4654. [PMID: 35779174 DOI: 10.1007/s12010-022-04029-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2022] [Indexed: 11/02/2022]
Abstract
Synthetic microfibers (SMFs), tiny particles which gets fragmented from large fragments of large synthetic fibers having less than 10 µm in diameter, have gathered ubiquitously in each and every corner of the earth. After their release into the aquatic environment, they remain there without natural degradation. Furthermore, it can be anticipated that floating units are transported along the food chain leading to bioaccumulation. It has been estimated that approximately 10-20 Mt of large fabric products as garbage enter into aquatic system per annum. Recently, these synthetic fragments have been investigated as transporters of heavy metal ions (HMs) showing different types of interactions. Yet, the underlying mechanism of these types of interaction is not known, especially the factors stimulating this process and how badly they affect biotic communities. Through this article, a detailed survey was carried out on the sources of microfibers and HMs into the aquatic environment, adsorption of different types of HMs on the SMF surface, mechanics favors these HM-MF interactions, particularly highlighting the significant roles of interaction on microbial biofilm formation. Their collaborative effects which possess harmful effects on aquatic as well as terrestrial organisms was also discussed. Lastly, the future investigations should focus on rigorous research in this field. This article to the best of our knowledge briefly describes the current research developments and emphasizes the vital function of the microorganisms on MFs-HMs interactions with the encouragement for rigorous research in this field to reveal accurate mechanisms and decrease the hazards related with MF presence.
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12
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Kang J, Wang Y, Qiu Y. The effect of Fe3+ ions on the electrochemical behaviour of ocean manganese nodule reduction leaching in sulphuric acid solution. RSC Adv 2022; 12:1121-1129. [PMID: 35425098 PMCID: PMC8978982 DOI: 10.1039/d1ra08440b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/16/2021] [Indexed: 12/02/2022] Open
Abstract
The effect of Fe3+ ions on the ocean manganese nodule reductive leaching in imitated sulphuric acid solutions was investigated. This work is presented in two courses, including the influence of Fe3+ ions on valuable metal extraction and the electrochemical reductive dissolution of manganese nodules. The results show that the beneficial effects of Fe3+ ion can be interpreted based on two aspects: the first is the acceleration caused by the active transformation of Fe3+/Fe2+ pair, and the second is the hydrogen ion buffer action generated by Fe3+ ion hydrolysis on the surface. On one side, Fe3+ ion could lessen the hydrogen consumption happening at the interface layer of the nodule supported by the leaching test and cyclic voltammetry results. On the other side, Fe3+ ions could be converted into Fe2+ ions and then preferentially reduce manganese oxide leading to an acceleration of the charge transfer reaction of the manganese nodule based on cyclic voltammetry, polarization, and impedance analysis results. The reduction leaching of manganese nodules in sulphuric acid solution is mainly controlled by the electrochemical interface reduction corresponding to manganese oxide dissolution, and the active conversion of the Fe3+/Fe2+ couple affects the dissolution of high valence manganese oxide. The effect of Fe3+ ions on the ocean manganese nodule reductive leaching in imitated sulphuric acid solutions was investigated.![]()
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Affiliation(s)
- Jinxing Kang
- China ENFI Engineering Co., Ltd, China Minmetal, Beijing 100038, China
| | - Yayun Wang
- China ENFI Engineering Co., Ltd, China Minmetal, Beijing 100038, China
| | - Yunfei Qiu
- China ENFI Engineering Co., Ltd, China Minmetal, Beijing 100038, China
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He D, Shu J, Wang R, Chen M, Wang R, Gao Y, Liu R, Liu Z, Xu Z, Tan D, Gu H, Wang N. A critical review on approaches for electrolytic manganese residue treatment and disposal technology: Reduction, pretreatment, and reuse. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126235. [PMID: 34126381 DOI: 10.1016/j.jhazmat.2021.126235] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/10/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Electrolytic manganese residue (EMR) has become a barrier to the sustainable development of the electrolytic metallic manganese (EMM) industry. EMR has a great potential to harm local ecosystems and human health, due to it contains high concentrations of soluble pollutant, especially NH4+ and Mn2+, and also the possible dam break risk because of its huge storage. There seems to be not a mature and stable industrial solution for EMR, though a lot of researches have been done in this area. Hence, by fully considering the EMM ecosystem, we analyzed the characteristics and eco-environmental impact of EMR, highlighted state-of-the-art technologies for EMR reduction, pretreatment, and reuse; indicated the factors that block EMR treatment and disposal; and proposed plausible and feasible suggestions to solve this problem. We hope that the results of this review could help solve the problem of EMR and thus promote the sustainable development of EMM industry.
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Affiliation(s)
- Dejun He
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Jiancheng Shu
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China.
| | - Rong Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Mengjun Chen
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Rui Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Yushi Gao
- Guizhou Academy of Sciences, Guiyang 550001, China; Guizhou Institute of Building Materials Scientific Research and Design Limited Company, Guiyang 550007, China
| | - Renlong Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Zuohua Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Zhonghui Xu
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Daoyong Tan
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang 621010, China
| | - Hannian Gu
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Ning Wang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
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Lan J, Dong Y, Xiang Y, Zhang S, Mei T, Hou H. Selective recovery of manganese from electrolytic manganese residue by using water as extractant under mechanochemical ball grinding: Mechanism and kinetics. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125556. [PMID: 33752086 DOI: 10.1016/j.jhazmat.2021.125556] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/08/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
This research aimed to address the issue of residual manganese in electrolytic manganese residue (EMR), which is difficult to recycle and can easily become an environmental hazard and resource waste. This research developed a method for the efficient and selective recovery of manganese from EMR and the removal of ammonia nitrogen (ammonium sulfate) under the combined action of ball milling and oxalic acid. The optimum process parameters of this method were obtained through single-factor experiment and response-surface model. Results showed that the recovery rate of manganese can exceed 98%, the leaching rate of iron was much lower than 2%, and the leaching rates of manganese and ammonia nitrogen after EMR ball grinding were 1.01 and 13.65 mg/L, respectively. Kinetics and mechanism studies revealed that ammonium salts were primarily removed in the form of ammonia, and that insoluble manganese (MnO2) was recovered by the reduction of FeS and FeS2 in EMR under the action of oxalic acid. Iron was solidified in the form of Fe2O3 and Fe2(SiO3)3. The technology proposed in this research has great industrial application value for the recycling and harmless treatment of EMR.
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Affiliation(s)
- Jirong Lan
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China
| | - Yiqie Dong
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China
| | - Yuwei Xiang
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China
| | - Shanshan Zhang
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China
| | - Tao Mei
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China
| | - Haobo Hou
- School of Resource and Environmental Sciences, Wuhan University, PR China; Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan 430072, PR China.
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15
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Ghosh S, Gandhi M, van Hullebusch ED, Das AP. Proteomic insights into Lysinibacillus sp.-mediated biosolubilization of manganese. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:40249-40263. [PMID: 33011949 DOI: 10.1007/s11356-020-10863-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
There has been alarming depletion of manganese (Mn) reserves owing to the ongoing extensive mining operations for catering the massive industrial demand of this element. Moreover, the mining operations have been leading to the generation of Mn-rich waste, thereby contaminating both terrestrial and aquatic bodies. The current scenario necessitates the development of alternative processes for bioremediation as well as economic recovery of Mn from mining wastes. The present investigation aims to report the bioleaching of Mn by Lysinibacillus sp. from mining waste residues in the context of mine waste remediation. Results confirmed that the native isolate had a high Mn biosolubilization potential with a solubilizing efficiency of 84% at the end of a 21-day study under optimized conditions of pulp density 2% (< 150-μm particle size), pH 6.5, and temperature 30 °C. Fourier transform infrared spectroscopy (FTIR) studies followed by liquid chromatography mass spectrometry (LC-MS) analysis were used to ascertain the change in microbial protein conformation, configuration, and protein identification. The results revealed the expression of heat shock proteins (HSP) from the family HSP which is predominantly expressed in bacteria during stress conditions. This study represents the application of native bacterial strain in Mn biosolubilization. We foresee the utility of proteomics-based studies to provide a methodological framework to the underlying mechanism of metal solubilization, thereby facilitating the two-tier benefit of recovery of Mn from alternative sources as well as bioremediation of waste having high manganese content.
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Affiliation(s)
- Shreya Ghosh
- Amity Institute of Biotechnology, Amity University, New Town, Kolkata, 700135, India
| | - Mayuri Gandhi
- Centre for Research in Nano Technology & Science (CRNTS), Sophisticated Analytical Instrument Facility (SAIF), Indian Institute of Technology Bombay, Mumbai, India
| | - Eric D van Hullebusch
- Institut de physique du globe de Paris, CNRS, Université de Paris, F-75005, Paris, France
| | - Alok Prasad Das
- Department of Life Science, Rama Devi Women's University, Bhoinagar P.O, Bhubaneswar, Odisha, 751002, India.
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16
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Hydrometallurgical Production of Electrolytic Manganese Dioxide (EMD) from Furnace Fines. MINERALS 2021. [DOI: 10.3390/min11070712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The ferromanganese (FeMn) alloy is produced through the smelting-reduction of manganese ores in submerged arc furnaces. This process generates large amounts of furnace dust that is environmentally problematic for storage. Due to its fineness and high volatile content, this furnace dust cannot be recirculated through the process, either. Conventional MnO2 production requires the pre-reduction of low-grade ores at around 900 °C to convert the manganese oxides present in the ore into their respective acid-soluble forms; however, the furnace dust is a partly reduced by-product. In this study, a hydrometallurgical route is proposed to valorize the waste dust for the production of battery-grade MnO2. By using dextrin, a cheap organic reductant, the direct and complete dissolution of the manganese in the furnace dust is possible without any need for high-temperature pre-reduction. The leachate is then purified through pH adjustment followed by direct electrowinning for electrolytic manganese dioxide (EMD) production. An overall manganese recovery rate of >90% is achieved.
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Lan J, Sun Y, Chen X, Zhan W, Du Y, Zhang TC, Ye H, Du D, Hou H. Bio-leaching of manganese from electrolytic manganese slag by Microbacterium trichothecenolyticum Y1: Mechanism and characteristics of microbial metabolites. BIORESOURCE TECHNOLOGY 2021; 319:124056. [PMID: 33038655 DOI: 10.1016/j.biortech.2020.124056] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
The related microbial metabolomics on biological recovery of manganese (Mn) from Electrolytic Manganese Slag (EMS) has not been studied. This study aimed at open the door to the metabolic characteristics of microorganisms in leaching Mn from EMS by using waste molasses (WM) as carbon source. Results show Microbacterium trichothecenolyticum Y1 (Y1) could effectively leach Mn from EMS in combination with using waste molasses as carbon and energy sources. For the first time, Y1 was identified to be capable of generating and then metabolizing several organic acids or other organic matter (e.g., fumaric acid, succinic acid, malic acid, glyoxylic acid, 3-hydroxybutyric acid, glutaric acid, L(+)-tartaric acid, citric acid, tetrahydrofolic acid, and L-methionine). The production of organic acids by Y1 bacteria was promoted by EMS with the carbon source. This study demonstrated for the first time that metabolic characteristics and carbon source metabolic pathways of Y1 in bioleaching of Mn from EMS.
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Affiliation(s)
- Jirong Lan
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China; School of Resource and Environmental Sciences, Wuhan University, Wuhan, PR China
| | - Yan Sun
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Xiaohong Chen
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Wei Zhan
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Yaguang Du
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China.
| | - Tian C Zhang
- Civil and Environmental Engineering Department, College of Engineering, University of Nebraska-Lincoln, Omaha, NE 68182, USA
| | - Hengpeng Ye
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Dongyun Du
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Haobo Hou
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, PR China
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18
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Lv Y, Li J, Ye H, Du D, Sun P, Ma M, Zhang TC. Bioleaching of silicon in electrolytic manganese residue (EMR) by Paenibacillus mucilaginosus: Impact of silicate mineral structures. CHEMOSPHERE 2020; 256:127043. [PMID: 32445999 DOI: 10.1016/j.chemosphere.2020.127043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 04/26/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
Electrolytic manganese residue (EMR) is characterized by high silicon content, and thus, is an important silicon source. While considerable research has been conducted on bioleaching EMR for silicon recovery, sufficient information is not available on the impact of specific silicate mineral structures in EMR on silicon bioleaching. In the present study, the mineral composition of EMR was determined firstly, and then the leaching effect of Paenibacillus mucilaginosus on these different silicate minerals were investigated by shake flask experiments. Results showed that the silicon in EMR was mainly composed of quartz, sericite, muscovite, biotite, olivine and rhodonite; Paenibacillus mucilaginosus had a significantly different weathering and decomposition effects on different silicate minerals. Among them, sericite, muscovite and biotite with layered structure had the most obvious silicon leaching effect, followed by rhodonite with island structure, while silicon leaching from olivine with chained structure and quartz with frame structure was much more difficult. One can roughly judge the adaptability of bioleaching of silicon in EMR using Paenibacillus mucilaginosus if the main form of silicate minerals in EMR is determined.
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Affiliation(s)
- Ying Lv
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Jia Li
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China; School of Forestry & Environmental Studies, Yale University, New Haven, 06511, CT, United States.
| | - Hengpeng Ye
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Dongyun Du
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Peng Sun
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Mengyu Ma
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Tian C Zhang
- Civil Engineering Department, University of Nebraska-Lincoln (Omaha Campus), Omaha, NE, 68182, USA
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Singh RP, Mishra S, Das AP. Synthetic microfibers: Pollution toxicity and remediation. CHEMOSPHERE 2020; 257:127199. [PMID: 32480092 DOI: 10.1016/j.chemosphere.2020.127199] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 05/23/2023]
Abstract
The ever-increasing use of domestic washing machine by urban population is playing a major role in synthetic microfibers (SMFs) pollution via entering the ecosystem. Although many of the sources of fragmented plastic pollution in oceanic environments have been well known, urban areas are playing a major contributor due to huge populations. Thousands of scientific investigations are now reporting the adverse effect of these micro pollutants on aquatic and terrestrial environment, food chain and human health. Microfiber particles along with washing machine grey waters are emitted into urban drainage adjoining the lakes and river which ultimately mix in ocean water and after emission these tiny particles dispersed though out the ocean water by currents due to their low density. Environmental pollution cause by domestic laundering processes of synthetic clothes has been reported as the major cause of primary microplastics in the marine system. While community awareness and improved education will be successful in making public conscious of this problem, there needs to be more research on global scale to mitigate the ecological consequences of microfiber pollution by urban habitats through environmental friendly approach. This paper focuses to improve the understanding of urban population influence on microfiber pollution, their ecological toxicity to aquatic organism and humans, detection and characterization techniques with an emphasis on future research for prevention and control of microfiber pollution.
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Affiliation(s)
| | - Sunanda Mishra
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Alok Prasad Das
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India.
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20
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A High Manganese-Tolerant Pseudomonas sp. Strain Isolated from Metallurgical Waste Heap Can Be a Tool for Enhancing Manganese Removal from Contaminated Soil. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10165717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Manganese (Mn) is widely used in industry. However, its extensive applications have generated a great amount of manganese waste, which has become an ecological problem and has led to a decrease in natural resources. The use of microorganisms capable of accumulating Mn ions from contaminated ecosystems offers a potential alternative for the removal and recovery of this metal. The main aim of this work was an investigation of removal potential of Mn from soil by isolated bacterial. For this purpose, eleven bacterial strains were isolated from the soil from metallurgical waste heap in Upper Silesia, Poland. Strain named 2De with the highest Mn removal potential was selected and characterized taking into account its ability for Mn sorption and bioaccumulation from soil and medium containing manganese dioxide. Moreover, the protein profile of 2De strain before and after exposition to Mn was analyzed using SDS/PAGE technique. The 2De strain was identified as a Pseudomonas sp. The results revealed that this strain has an ability to grow at high Mn concentration and possesses an enhanced ability to remove it from the solution enriched with the soil or manganese dioxide via a biosorption mechanism. Moreover, changes in cellular protein expression of the isolated strain were observed. This study demonstrated that autochthonous 2De strain can be an effective tool to remove and recover Mn from contaminated soil.
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Solouki A, Viscomi G, Lamperti R, Tataranni P. Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review. MATERIALS 2020; 13:ma13143146. [PMID: 32679685 PMCID: PMC7411772 DOI: 10.3390/ma13143146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 11/16/2022]
Abstract
Carbon footprint reduction of paving materials could be explored through recycling mining by-products into different applications, which will preserve natural resources and decrease environmental issues. One possible approach is to reuse quarry dust and mining ore waste as precursors in geopolymer applications. geopolymers are mineral polymers rich in aluminosilicates with an amorphous to a semi-crystalline three-dimensional structure. The current review aims to summarize the studies conducted during the past decade on geopolymers containing quarry dust and mine tailings. The first section discusses various precursors used for geopolymer cement production such as metakaolin, ground granulated blast furnace slag (GGBFS), fly ash, and quarry/mining ore wastes including silt, tungsten, vanadium, copper, gold, zinc, marble, iron, basalt, and lithium. Different calcination treatments and curing conditions have been summarized. In some cases, the precursors are required to be calcined to increase their reactivity. Both ambient temperature and elevated temperature curing conditions have been summarized. Less attention has been paid to room temperature curing, which is necessary for field and industrial implementations. Engineering properties such as compressive strength, density, durability and acid resistance, water absorption and abrasion of geopolymers containing mining waste were reviewed. One of the main barriers preventing the widespread use of waste powders, in addition to economic aspects, in geopolymers could be due to their unstable chemical structure. This was shown through extensive leachate of Na+ or K+ cations in geopolymer structures. The review of over 100 articles indicated the need for further research on different aspects of quarry waste geopolymer productions before its full industrial implementation.
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Affiliation(s)
- Abbas Solouki
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40136 Bologna, Italy;
- SAPABA, 40037 Pontecchio Marconi BO, Italy;
- Correspondence:
| | | | | | - Piergiorgio Tataranni
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40136 Bologna, Italy;
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22
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Assessing the Freshwater Quality of a Large-Scale Mining Watershed: The Need for Integrated Approaches. WATER 2019. [DOI: 10.3390/w11091797] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Water quality assessments provide essential information for protecting aquatic habitats and stakeholders downstream of mining sites. Moreover, mining companies must comply with environmental quality standards and include public participation in water quality monitoring (WQM) practices. However, overarching challenges beyond corporate environmental responsibility are the scientific soundness, political relevance and harmonization of WQM practices. In this study, a mountainous watershed supporting large-scale gold mining in the headwaters, besides urban and agricultural landuses at lower altitudes, is assessed in the dry season. Conventional physicochemical and biological (Biological Monitoring Water Party-Colombia index) freshwater quality parameters were evaluated, including hydromorphological and land-use characteristics. According to the indicators used, water quality deterioration by mining was absent, in contrast to the effects of urban economic activities, hydromorphological alterations and (less important) agricultural pollutants. We argue that mining impacts are hardly captured due to the limited ecological knowledge of high-mountain freshwaters, including uncharacterized mining-specific bioindicators, environmental baselines and groundwater processes, as well as ecotoxicological and microbial freshwater quality components. Lessons for overcoming scientific and operational challenges are drawn from joint efforts among governments, academia and green economy competitiveness. Facing a rapid development of extractive industries, interinstitutional and multidisciplinary collaborations are urgently needed to implement more integrated freshwater quality indicators of complex mining impacts.
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Mishra S, Rath CC, Das AP. Marine microfiber pollution: A review on present status and future challenges. MARINE POLLUTION BULLETIN 2019; 140:188-197. [PMID: 30803634 DOI: 10.1016/j.marpolbul.2019.01.039] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/18/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
Microfibers are emerging pollutants with widespread distribution in the environment and have adverse ecological impacts. Approximately 2 million tonnes of microfibers are released into the ocean every year from various sources, of which 700,000 micro fleeces are released from each garment through domestic laundry. Microfibers are the major marine pollutant throughout the world estimating 13 million tonnes of coastal synthetic fabric waste entering the ocean each year, out of which 2.5 million tonnes enter through adjoining rivers. It is anticipated that, to date, 1.5 million trillion of microfibers are present in the ocean. Microfibers are mistakenly ingested by marine animals and cause hazardous effects to aquatic species. Microfiber treatment techniques are under progress for efficient control of this pollutant. This article focuses on global microfiber generation and its sources, pathway of its entry into the environment and food chain, potential threat to aquatic animals and humans, present treatment technologies, and future challenges.
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Affiliation(s)
- Sunanda Mishra
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Chandi Charan Rath
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Alok Prasad Das
- Department of Life Science, Rama Devi Women's University, Bhubaneswar, Odisha, India.
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New understanding of the reduction mechanism of pyrolusite in the Acidithiobacillus ferrooxidans bio-leaching system. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Electrochemical Behavior of Ocean Polymetallic Nodules and Low-Grade Nickel Sulfide Ore in Acidithiobacillus Ferrooxidans-Coupled Bio-Leaching. MINERALS 2019. [DOI: 10.3390/min9020070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Efficient extraction of Ni, Co, Cu, and Mn from low-grade and refractory ores is a common technical challenge. The present study proposes an Acidithiobacillus ferrooxidans-coupled leaching of Ni, Cu, Co, and Mn from oceanic polymetallic nodules and low-grade nickel sulfide ore, and focuses on the electrochemical behavior of the ores in simulated bio-leaching solutions. In the dissolution of polymetallic nodules, A. ferrooxidans facilitates the diffusion of H+ and accelerates electron transfer, producing a decrease in charge transfer resistance and promoting the Mn(IV)-preceding reaction. The use of A. ferrooxidans is beneficial for lower impedance of sulfur-nickel ore, faster diffusion rate of product layer, and better transformation of the Fe3+/Fe2+ couple and S0/S2− couple. A. ferrooxidans increases the potential difference between the nodule cathode and sulfide anode, and increases electron liberation from the sulfide ore. This motivates a significant increase in the average extraction rates of Ni, Co, Cu, and Mn in the bacterial solution. The bio-leaching efficiencies of Ni, Co, Cu, and Mn were as high as 95.4%, 97.8%, 92.2% and 97.3%, respectively, representing improvements of 17.1%, 11.5%, 14.3% and 12.9% relative to that of the germ- and Fe(III)-free acidic 9 K basic system.
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Nguyen VK, Ha MG, Shin S, Seo M, Jang J, Jo S, Kim D, Lee S, Jung Y, Kang P, Shin C, Ahn Y. Electrochemical effect on bioleaching of arsenic and manganese from tungsten mine wastes using Acidithiobacillus spp. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 223:852-859. [PMID: 29986334 DOI: 10.1016/j.jenvman.2018.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/06/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Mine wastes from tungsten mine which contain a high concentration of arsenic (As) may expose many environmental problems because As is very toxic. This study aimed to evaluate bioleaching efficiency of As and manganese (Mn) from tungsten mine wastes using the pure and mixed culture of Acidithiobacillus ferrooxidans and A. thiooxidans. The electrochemical effect of the electrode through externally applied voltage on bacterial growth and bioleaching efficiency was also clarified. The obtained results indicated that both the highest As extraction efficiency (96.7%) and the highest Mn extraction efficiency (100%) were obtained in the mixed culture. A. ferrooxidans played a more important role than A. thiooxidans in the extraction of As whereas A. thiooxidans was more significant than A. ferrooxidans in the extraction of Mn. Unexpectedly, the external voltage applied to the bioleaching did not enhance metal extraction rate but inhibited bacterial growth, resulting in a reverse effect on bioleaching efficiency. This could be due to the low electrical tolerance of bioleaching bacteria. However, this study asserted that As and Mn could be successfully removed from tungsten mine waste by the normal bioleaching using the mixed culture of A. ferrooxidans and A. thiooxidans.
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Affiliation(s)
- Van Khanh Nguyen
- Department of Environmental Engineering, Dong-A University, Busan 49315, Republic of Korea
| | - Myung-Gyu Ha
- Korea Basic Science Institute, Busan Center, Busan 46742, Republic of Korea
| | - Seunghye Shin
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Minhyeong Seo
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Jongwon Jang
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Seungjin Jo
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Donghyeon Kim
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Sungmin Lee
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Yoonho Jung
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | | | - Chajeong Shin
- BUSAN IL Science High School, Busan 49317, Republic of Korea
| | - Yeonghee Ahn
- Department of Environmental Engineering, Dong-A University, Busan 49315, Republic of Korea.
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Metagenomic insights into the microbial diversity in manganese-contaminated mine tailings and their role in biogeochemical cycling of manganese. Sci Rep 2018; 8:8257. [PMID: 29844399 PMCID: PMC5974364 DOI: 10.1038/s41598-018-26311-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 05/08/2018] [Indexed: 11/08/2022] Open
Abstract
To extend the knowledge on the microbial diversity of manganese rich environments, we performed a clone library based study using metagenomic approach. Pyrosequencing based analysis of 16S rRNA genes were carried out on an Illumina platform to gain insights into the bacterial community inhabiting in a manganese mining site and the taxonomic profiles were correlated with the inherent capacities of these strains to solubilise manganese. The application of shot gun sequencing in this study yielded results which revealed the highest prevalence of Proteobacteria (42.47%), followed by Actinobacteria (23.99%) in the area of study. Cluster of orthologous group (COG) functional category has 85,066 predicted functions. Out of which 11% are involved in metabolism of amino acid, 9% are involved in production and conversion of energy while Keto Encyclopedia of Gene and Genomes (KEGG) functional category has 107,388 predicted functions, out of which 55% are involved in cellular metabolism, 15% are environmental and information processing and 12% are genetic information processing in nature. The isolated microbial consortia demonstrated visible growth in presence of high concentrations of Mn. Solubilisation studies resulted in 86% of manganese recovery after 20 days. The result presented in this study has important implications in understanding the microbial diversity in manganese contaminated mine tailings and their role in natural geochemical cycling of Mn.
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Mohanty S, Ghosh S, Nayak S, Das AP. Bioleaching of manganese by Aspergillus sp. isolated from mining deposits. CHEMOSPHERE 2017; 172:302-309. [PMID: 28086158 DOI: 10.1016/j.chemosphere.2016.12.136] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 06/06/2023]
Abstract
A comprehensive study on fungus assisted bioleaching of manganese (Mn) was carried out to demonstrate Mn solubilization of collected low grade ore from mining deposits of Sanindipur, Odisha, India. A native fungal strain MSF 5 was isolated and identified as Aspergillus sp. by Inter Transcribed Spacer (ITS) sequencing. The identified strain revealed an elevated tolerance ability to Mn under varying optimizing conditions like initial pH (2, 3, 4, 5, 6, 7), carbon sources (dextrose, sucrose, fructose and glucose) and pulp density (2%, 3%, 4%, 5% and 6%). Bioleaching studies carried out under optimized conditions of 2% pulp density of Mn ore at pH 6, temperature 37 °C and carbon dosage (dextrose) resulted with 79% Mn recovery from the ore sample within 20 days. SEM-EDX characterization of the ore sample and leach residue was carried out and the micrographs demonstrated porous and coagulated precipitates scattered across the matrix. The corresponding approach of FTIR analysis regulating the Mn oxide formation shows a distinctive peak of mycelium cells with and without treated Mn, resulting with generalized vibrations like MnOx stretching and CH2 stretch. Thus, our investigation endeavors' the considerate possible mechanism involved in fungal surface cells onto Mn ore illustrating an alteration in cellular Mn interaction.
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Affiliation(s)
- Sansuta Mohanty
- Bioengineering & Biomineral Processing Laboratory, Centre of Biotechnology, Siksha O Anusandhan University, Khandagiri Square, Bhubaneswar, India
| | - Shreya Ghosh
- Bioengineering & Biomineral Processing Laboratory, Centre of Biotechnology, Siksha O Anusandhan University, Khandagiri Square, Bhubaneswar, India
| | - Sanghamitra Nayak
- Bioengineering & Biomineral Processing Laboratory, Centre of Biotechnology, Siksha O Anusandhan University, Khandagiri Square, Bhubaneswar, India
| | - Alok Prasad Das
- Department of Chemical and Polymer Engineering, Tripura University (A Central University), Suryamaninagar, Tripura, India.
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