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Li X, Wu Y, Yang K, Zhu M, Wen J. The impact of microbial community structure changes on the migration and release of typical heavy metal (loid)s during the revegetation process of mercury-thallium mining waste slag. ENVIRONMENTAL RESEARCH 2024; 251:118716. [PMID: 38490627 DOI: 10.1016/j.envres.2024.118716] [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: 11/28/2023] [Revised: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
The effect of changes in microbial community structure on the migration and release of toxic heavy metal (loid)s is often ignored in ecological restoration. Here, we investigated a multi-metal (mercury and thallium, Tl) mine waste slag. With particular focus on its strong acidity, poor nutrition, and high toxicity pollution characteristics, we added fish manure and carbonate to the slag as environmental-friendly amendments. On this basis, ryegrass, which is suitable for the remediation of metal waste dumps, was then planted for ecological restoration. We finally explored the influence of changes in microbial community structure on the release of Tl and As in the waste slag during vegetation reconstruction. The results show that the combination of fish manure and carbonate temporarily halted the release of Tl, but subsequently promoted the release of Tl and arsenic (As), which was closely related to changes in the microbial community structure in the waste slag after fish manure and carbonate addition. The main reason for these patterns was that in the early stage of the experiment, Bacillaceae inhibited the release of Tl by secreting extracellular polymeric substances; with increasing time, Actinobacteriota became the dominant bacterium, which promoted the migration and release of Tl by mycelial disintegration of minerals. In addition, the exogenously added organic matter acted as an electron transport medium for reducing microorganisms and thus helped to reduce nitrate or As (Ⅴ) in the substrate, which reduced the redox potential of the waste slag and promoted As release. At the same time, the phylum Firmicutes, including specific dissimilatory As-reducing bacteria that are capable of converting As into a more soluble form, further promoted the release of As. Our findings provide a theoretical basis for guiding the ecological restoration of relevant heavy-metal (loid) mine waste dumps.
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Affiliation(s)
- Xingying Li
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Yonggui Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guizhou University, Guiyang, 550025, China; Guizhou Hostile Environment Ecological Restoration Technology Engineering Research Centre, Guizhou University, Guiyang, 550025, China.
| | - Kaizhi Yang
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan, 030000, China
| | - Mei Zhu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Jichang Wen
- New Rural Development Research Institute, Guizhou University, Guiyang, 550025, China.
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2
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Hassan S, Bhadwal SS, Khan M, Sabreena, Nissa KU, Shah RA, Bhat HM, Bhat SA, Lone IM, Ganai BA. Revitalizing contaminated lands: A state-of-the-art review on the remediation of mine-tailings using phytoremediation and genomic approaches. CHEMOSPHERE 2024; 356:141889. [PMID: 38583533 DOI: 10.1016/j.chemosphere.2024.141889] [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: 01/09/2024] [Revised: 03/27/2024] [Accepted: 04/01/2024] [Indexed: 04/09/2024]
Abstract
The mining industry has historically served as a critical reservoir of essential raw materials driving global economic progress. Nevertheless, the consequential by-product known as mine tailings has consistently produced a substantial footprint of environmental contamination. With annual discharges of mine tailings surpassing 10 billion tons globally, the need for effective remediation strategies is more pressing than ever as traditional physical and chemical remediation techniques are hindered by their high costs and limited efficacy. Phytoremediation utilizing plants for remediation of polluted soil has developed as a promising and eco-friendly approach to addressing mine tailings contamination. Furthermore, sequencing of genomic DNA and transcribed RNA extracted from mine tailings presents a pivotal opportunity to provide critical supporting insights for activities directed towards the reconstruction of ecosystem functions on contaminated lands. This review explores the growing prominence of phytoremediation and metagenomics as an ecologically sustainable techniques for rehabilitating mine-tailings. The present study envisages that plant species such as Solidago chilensis, Festuca arundinacea, Lolium perenne, Polygonum capitatum, Pennisetum purpureum, Maireana brevifolia, Prosopis tamarugo etc. could be utilized for the remediation of mine-tailings. Furthermore, a critical evaluation of the organic and inorganic ammendments that optimize conditions for the remediation of mine tailings is also provided. The focus of this review extends to the exploration of environmental genomics to characterize microbial communities in mining sites. By delving into the multifaceted dimensions of phytoremediation and genomics for mine tailings, this study contributes to the ongoing efforts to revitalize contaminated lands for a sustainable and environmentally friendly future.
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Affiliation(s)
- Shahnawaz Hassan
- Department of Environmental Science, University of Kashmir, Srinagar, 190006, India.
| | - Siloni Singh Bhadwal
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Misba Khan
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, India
| | - Sabreena
- Department of Environmental Science, University of Kashmir, Srinagar, 190006, India
| | - Khair-Ul Nissa
- Department of Environmental Science, University of Kashmir, Srinagar, 190006, India
| | - Rameez Ahmad Shah
- Department of Environmental Science, University of Kashmir, Srinagar, 190006, India
| | - Haneef Mohammad Bhat
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, India
| | - Shabir Ahmad Bhat
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, India
| | - Ishfaq Maqbool Lone
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, India
| | - Bashir Ahmad Ganai
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, India.
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3
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Li Y, Sun X, Zhang M, Khan A, Sun W. Dominant role of rare bacterial taxa rather than abundant taxa in driving the tailing primary succession. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132807. [PMID: 37879275 DOI: 10.1016/j.jhazmat.2023.132807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/20/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023]
Abstract
Primary ecological succession is imperative for tailing vegetation, driven notably by microbes that enhance tailing nutrient status. Yet, the roles of abundant and rare taxa in tailing primary succession remain underexplored. This study investigates these subcommunities across three succession stages (i.e., original tailing, biological crusts, grasslands). Throughout primary succession, alpha diversity and functional gene abundances of the rare taxa (RT) group consistently rise from bare tailings to grasslands. Conversely, the abundant taxa (AT) group displays an opposing trend. Intriguingly, employing co-occurrence networks, keystone taxa, mantel tests, similarity percentage analysis, and structural equation model, the study uncovers that RT wields a more pivotal role than AT in driving tailing primary succession. Community assembly analysis reveals stochastic control of AT and deterministic control of RT. Additionally, primary succession reinforces stochastic processes in AT, while RT's deterministic process remains unaffected. By unveiling these dynamics, the research enriches our understanding of primary ecological succession in tailings. Recognition of unique diversity patterns and community assembly mechanisms for rare and abundant subcommunities advances tailing ecosystem comprehension and informs ecological restoration strategies. This study thus contributes valuable insights to the complex interplay of microbial taxa during tailing primary succession.
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Affiliation(s)
- Yongbin Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xiaoxu Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Miaomiao Zhang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Ajmal Khan
- Department of Environmental Sciences, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Weimin Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
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4
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Chen T, Wen X, Zhou J, Lu Z, Li X, Yan B. A critical review on the migration and transformation processes of heavy metal contamination in lead-zinc tailings of China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 338:122667. [PMID: 37783414 DOI: 10.1016/j.envpol.2023.122667] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/11/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
The health risks of lead-zinc (Pb-Zn) tailings from heavy metal (HMs) contamination have been gaining increasing public concern. The dispersal of HMs from tailings poses a substantial threat to ecosystems. Therefore, studying the mechanisms of migration and transformation of HMs in Pb-Zn tailings has significant ecological and environmental significance. Initially, this study encapsulated the distribution and contamination status of Pb-Zn tailings in China. Subsequently, we comprehensively scrutinized the mechanisms governing the migration and transformation of HMs in the Pb-Zn tailings from a geochemical perspective. This examination reveals the intricate interplay between various biotic and abiotic constituents, including environmental factors (EFs), characteristic minerals, organic flotation reagents (OFRs), and microorganisms within Pb-Zn tailings interact through a series of physical, chemical, and biological processes, leading to the formation of complexes, chelates, and aggregates involving HMs and OFRs. These interactions ultimately influence the migration and transformation of HMs. Finally, we provide an overview of contaminant migration prediction and ecological remediation in Pb-Zn tailings. In this systematic review, we identify several forthcoming research imperatives and methodologies. Specifically, understanding the dynamic mechanisms underlying the migration and transformation of HMs is challenging. These challenges encompass an exploration of the weathering processes of characteristic minerals and their interactions with HMs, the complex interplay between HMs and OFRs in Pb-Zn tailings, the effects of microbial community succession during the storage and remediation of Pb-Zn tailings, and the importance of utilizing process-based models in predicting the fate of HMs, and the potential for microbial remediation of tailings.
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Affiliation(s)
- Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
| | - Xiaocui Wen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jiawei Zhou
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Zheng Lu
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Xueying Li
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
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5
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Pérez R, Tapia Y, Antilén M, Ruiz A, Pimentel P, Santander C, Aponte H, González F, Cornejo P. Beneficial Interactive Effects Provided by an Arbuscular Mycorrhizal Fungi and Yeast on the Growth of Oenothera picensis Established on Cu Mine Tailings. PLANTS (BASEL, SWITZERLAND) 2023; 12:4012. [PMID: 38068648 PMCID: PMC10708390 DOI: 10.3390/plants12234012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/17/2023] [Accepted: 11/24/2023] [Indexed: 07/03/2024]
Abstract
Phytoremediation, an environmentally friendly and sustainable approach for addressing Cu-contaminated environments, remains underutilized in mine tailings. Arbuscular mycorrhizal fungi (AMF) play a vital role in reducing Cu levels in plants through various mechanisms, including glomalin stabilization, immobilization within fungal structures, and enhancing plant tolerance to oxidative stress. Yeasts also contribute to plant growth and metal tolerance by producing phytohormones, solubilizing phosphates, generating exopolysaccharides, and facilitating AMF colonization. This study aimed to assess the impact of AMF and yeast inoculation on the growth and antioxidant response of Oenothera picensis plants growing in Cu mine tailings amended with compost. Plants were either non-inoculated (NY) or inoculated with Meyerozyma guilliermondii (MG), Rhodotorula mucilaginosa (RM), or a combination of both (MIX). Plants were also inoculated with Claroideoglomus claroideum (CC), while others remained non-AMF inoculated (NM). The results indicated significantly higher shoot biomass in the MG-NM treatment, showing a 3.4-fold increase compared to the NY-NM treatment. The MG-CC treatment exhibited the most substantial increase in root biomass, reaching 5-fold that in the NY-NM treatment. Co-inoculation of AMF and yeast influenced antioxidant activity, particularly catalase and ascorbate peroxidase. Furthermore, AMF and yeast inoculation individually led to a 2-fold decrease in total phenols in the roots. Yeast inoculation notably reduced non-enzymatic antioxidant activity in the ABTS and CUPRAC assays. Both AMF and yeast inoculation promoted the production of photosynthetic pigments, further emphasizing their importance in phytoremediation programs for mine tailings.
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Affiliation(s)
- Rodrigo Pérez
- Plant Stress Physiology Laboratory, Centro de Estudios Avanzados en Fruticultura (CEAF), Rengo 2940000, Chile; (R.P.); (P.P.)
| | - Yasna Tapia
- Departamento de Ingeniería y Suelos, Universidad de Chile, Santiago 8820808, Chile;
| | - Mónica Antilén
- Departamento de Química Inorgánica, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
| | - Antonieta Ruiz
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile; (A.R.); (C.S.)
| | - Paula Pimentel
- Plant Stress Physiology Laboratory, Centro de Estudios Avanzados en Fruticultura (CEAF), Rengo 2940000, Chile; (R.P.); (P.P.)
| | - Christian Santander
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile; (A.R.); (C.S.)
- Grupo de Ingeniería Ambiental y Biotecnología, Facultad de Ciencias Ambientales y Centro EULA-Chile, Universidad de Concepción, Concepción 4070411, Chile
| | - Humberto Aponte
- Laboratory of Soil Microbiology and Biogeochemistry, Institute of Agri-Food, Animal and Environmental Sciences (ICA3), Universidad de O’Higgins, San Fernando 3070000, Chile;
- Centre of Systems Biology for Crop Protection (BioSav), Institute of Agri-Food, Animal and Environmental Sciences (ICA3), Universidad de O’Higgins, San Fernando 3070000, Chile
| | - Felipe González
- Programa de Doctorado en Ciencias Mención Biología Celular y Molecular Aplicada, Universidad de La Frontera, Temuco 4780000, Chile;
| | - Pablo Cornejo
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, San Francisco S/N, La Palma, Quillota 2260000, Chile
- Centro Regional de Investigación e Innovación para la Sostenibilidad de la Agricultura y los Territorios Rurales, CERES, La Palma, Quillota 2260000, Chile
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6
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Mahabub MS, Alahi F, Al Imran M. Unlocking the potential of microbes: biocementation technology for mine tailings restoration - a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:91676-91709. [PMID: 37526818 DOI: 10.1007/s11356-023-28937-4] [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: 02/27/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023]
Abstract
Mine tailings contain finer particles, crushed rocks, dugout-soil, water, and organic and inorganic metals or metalloids, including heavy metals and radionuclides, which are dumped as waste or non-economic by-products generated during mining and mineral processing. These abundant and untreated materials seriously threaten the environment, human health, and biodiversity because of the presence of heavy metals, radionuclides, and associated primary and secondary toxic components, including the risk of tailings dam failures. Biocementation technology, which involves the use of mining microbes to secrete cement-like materials that bind soil particles together, is a promising approach to restore mine tailing sites and reduce their mobility and toxicity. However, there is a lack of literature on the combined interactions among mining microbes, tailings residues, biocementation, and low-carbon cement (LCC) prospects. This comprehensive review article explores the prospects of mining microbes for mine tailings restoration using biocementation technology, the key influencing factors and their impact, mechanisms and metabolic pathways, and the effectiveness of biocementation technology in restoring mine tailings sites. In addition, it reviews the utilization of mine tailings materials as an alternative source of cement or construction materials for LCC technology. Furthermore, this review highlights the important issues, challenges, limitations, and applications of biocementation technology for mine tailings rehabilitation. Finally, it provides insights for future research and implementation of biocementation for mine tailings restoration and utilization of tailing materials in the industrial sector to reduce carbon emissions/footprints and achieve net-zero goals.
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Affiliation(s)
- Md Shakil Mahabub
- Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh.
| | - Fazley Alahi
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Maijdee, Noakhali, 3814, Bangladesh
| | - Md Al Imran
- Chemical and Biological Engineering, Faculty of Applied Science, The University of British Columbia, Vancouver Campus, Vancouver, BC, Canada
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7
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Sarathchandra SS, Rengel Z, Solaiman ZM. A Review on Remediation of Iron Ore Mine Tailings via Organic Amendments Coupled with Phytoremediation. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091871. [PMID: 37176929 PMCID: PMC10181287 DOI: 10.3390/plants12091871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/08/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative environmental impacts is of the utmost necessity. This review compares existing physical, chemical and amendment-assisted phytoremediation methods in the rehabilitation of mine tailings from the perspective of cost, reliability and durability. After review and discussion, it is concluded that amendment-assisted phytoremediation has received comparatively great attention; however, the selection of an appropriate phytoremediator is the critical step in the process. Moreover, the efficiency of phytoremediation is solely dependent on the amendment type and rate. Further, the application of advanced plant improvement technologies, such as genetically engineered plants produced for this purpose, would be an alternative solution. Further research is needed to determine the suitability of this method for the particular environment.
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Affiliation(s)
- Sajeevee S Sarathchandra
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zed Rengel
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zakaria M Solaiman
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
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8
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Alizadeh Sahraei A, Mejia Bohorquez B, Tremblay D, Moineau S, Garnier A, Larachi F, Lagüe P. Insight into the Binding Mechanisms of Quartz-Selective Peptides: Toward Greener Flotation Processes. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17922-17937. [PMID: 37010879 PMCID: PMC10103053 DOI: 10.1021/acsami.3c01275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
Mining practices, chiefly froth flotation, are being critically reassessed to replace their use of biohazardous chemical reagents in favor of biofriendly alternatives as a path toward green processes. In this regard, this study aimed at evaluating the interactions of peptides, as potential floatation collectors, with quartz using phage display and molecular dynamics (MD) simulations. Quartz-selective peptide sequences were initially identified by phage display at pH = 9 and further modeled by a robust simulation scheme combining classical MD, replica exchange MD, and steered MD calculations. Our residue-specific analyses of the peptides revealed that positively charged arginine and lysine residues were favorably attracted by the quartz surface at basic pH. The negatively charged residues at pH 9 (i.e., aspartic acid and glutamic acid) further showed affinity toward the quartz surface through electrostatic interactions with the positively charged surface-bound Na+ ions. The best-binding heptapeptide combinations, however, contained both positively and negatively charged residues in their composition. The flexibility of peptide chains was also shown to directly affect the adsorption behavior of the peptide. While attractive intrapeptide interactions were dominated by a weak peptide-quartz binding, the repulsive self-interactions in the peptides improved the binding propensity to the quartz surface. Our results showed that MD simulations are fully capable of revealing mechanistic details of peptide adsorption to inorganic surfaces and are an invaluable tool to accelerate the rational design of peptide sequences for mineral processing applications.
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Affiliation(s)
- Abolfazl Alizadeh Sahraei
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Barbara Mejia Bohorquez
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- PROTEO,
The Quebec Network for Research on Protein Function, Engineering,
and Applications, 1045
Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Denise Tremblay
- PROTEO,
The Quebec Network for Research on Protein Function, Engineering,
and Applications, 1045
Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- IBIS,
Institut de biologie intégrative et des systèmes, 1030 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- Department
of Biochemistry, Microbiology and Bioinformatics, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Sylvain Moineau
- PROTEO,
The Quebec Network for Research on Protein Function, Engineering,
and Applications, 1045
Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- IBIS,
Institut de biologie intégrative et des systèmes, 1030 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- Department
of Biochemistry, Microbiology and Bioinformatics, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Alain Garnier
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- PROTEO,
The Quebec Network for Research on Protein Function, Engineering,
and Applications, 1045
Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Faïçal Larachi
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Patrick Lagüe
- PROTEO,
The Quebec Network for Research on Protein Function, Engineering,
and Applications, 1045
Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- IBIS,
Institut de biologie intégrative et des systèmes, 1030 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- Department
of Biochemistry, Microbiology and Bioinformatics, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
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9
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Campoverde J, Guaya D. From Waste to Added-Value Product: Synthesis of Highly Crystalline LTA Zeolite from Ore Mining Tailings. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1295. [PMID: 37110881 PMCID: PMC10142727 DOI: 10.3390/nano13081295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 06/19/2023]
Abstract
The use of wastes is necessary to contribute to environmental sustainability. In this study, ore mining tailings were used as the raw material and precursor for the synthesis of LTA zeolite, a value-added product. Pre-treated mining tailings were submitted to the synthesis stages under specific established operational conditions. The physicochemical characterization of the synthesized products was performed with XRF, XRD, FTIR and SEM, to identify the most cost-effective synthesis condition. The LTA zeolite quantification and its crystallinity were determined as effects of the SiO2/Al2O3, Na2O/SiO2 and H2O/Na2O molar ratios used, as well as the influence of the synthesis conditions: mining tailing calcination temperature, homogenization, aging and hydrothermal treatment times. The zeolites obtained from the mining tailings were characterized by the LTA zeolite phase accompanied by sodalite. The calcination of mining tailings favored the production of LTA zeolite, and the influence of the molar ratios, aging and hydrothermal treatment times were determined. Highly crystalline LTA zeolite was obtained in the synthesized product at optimized conditions. Higher methylene blue adsorption capacity was associated with the highest crystallinity of synthesized LTA zeolite. The synthesized products were characterized by a well-defined cubic morphology of LTA zeolite and lepispheres of sodalite. The incorporation of lithium hydroxide nanoparticles over LTA zeolite synthesized (ZA-Li+) from mining tailings yielded a material with improved features. The adsorption capacity towards cationic dye was higher than for anionic dye, especially for methylene blue. The potential of using ZA-Li+ in environmental applications related to methylene blue deserves detailed study.
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10
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Wu M, Ye Y, Hu N, Wang Q, Tan W. Scientometric analysis on the review research evolution of tailings dam failure disasters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:13945-13959. [PMID: 36564690 PMCID: PMC9788663 DOI: 10.1007/s11356-022-24937-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
As the most severe damage form of tailings ponds, dam failure causes a serious threat and damage to the surrounding lives and environment. Therefore, based on the systematic collection and consultation of relevant data at home and abroad, the literature source analysis on tailings dam failure disasters is conducted using the CiteSpace scientometric tool. The research on tailings dam failure disasters can be classified into two stages: the preliminary germination stage and rapid development stage. Based on the scientometric knowledge map, the research hotspots of tailings dam failure disasters are analyzed and summarized as three main research directions: environmental impact, risk assessment, and mechanical behavior. With the maturity of the research on ecological problems caused by tailings leakage, ecological restoration has also gradually become a hot research topic. Through the analysis of keyword bursts and co-cited bursts, the research frontier of tailings dam break disaster is explored. "Risk management," "real-time monitoring," and "tailings characteristic" represent the current research frontier. Among them, risk management is burst for the longest time and is expected to be a very important research direction in the future. Finally, a tailings pond risk management and control suggestion is proposed with risk management as the core, emphasizing risk monitor, and combined with dynamic risk control, which provides a foundation for the construction of tailings dam safety management and dynamic monitoring systems.
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Affiliation(s)
- Menglong Wu
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, People's Republic of China
| | - Yicheng Ye
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, People's Republic of China
- Industrial Safety Engineering Technology Research Center of Hubei Province, Wuhan, 430081, Hubei, People's Republic of China
| | - Nanyan Hu
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, People's Republic of China.
| | - Qihu Wang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, People's Republic of China
| | - Wenkan Tan
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, People's Republic of China
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11
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Daraz U, Li Y, Ahmad I, Iqbal R, Ditta A. Remediation technologies for acid mine drainage: Recent trends and future perspectives. CHEMOSPHERE 2023; 311:137089. [PMID: 36336014 DOI: 10.1016/j.chemosphere.2022.137089] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/10/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Acid mine drainage (AMD) is a highly acidic solution rich in heavy metals and produced by mining activities. It can severely inhibit the growth of plants, and microbial communities and disturb the surrounding ecosystem. In recent years, the use of different bioremediation technologies to treat AMD pollution has received widespread attention due to its environment-friendly and low-cost nature. Various active and passive remediation technologies have been developed for the treatment of AMD. The active treatment involves the use of different chemical compounds while passive treatments utilize natural and biological processes like constructed wetlands, anaerobic sulfate-reducing bioreactors, anoxic limestone drains, vertical flow wetlands, limestone leach beds, open limestone channels, and various organic materials. Moreover, different nanomaterials have also been successfully employed in AMD treatment. There are also reports on certain plant growth-promoting rhizobacteria (PGPR) which have the potential to enhance the growth and productivity of plants under AMD-contaminated soil conditions. PGPR applied to plants with phytoremediation potential called PGPR-assisted phytoremediation has emerged as an economical and environment-friendly approach. Nevertheless, various approaches have been tested and employed, all the approaches have certain limitations in terms of efficiency, secondary pollution of chemicals used for the remediation of AMD, and disposal of materials used as sorbents or as phytoextractants as in the case of PGPR-assisted phytoremediation. In the future, more research work is needed to enhance the efficiency of various approaches employed with special attention to alleviating secondary pollutants production and safe disposal of materials used or biomass produced during PGPR-assisted phytoremediation.
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Affiliation(s)
- Umar Daraz
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, Anhui Province, China; State Key Laboratory of Grassland Agro-Ecosystems, Center for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yang Li
- Anhui University of Science and Technology, Huainan, Anhui, 232001, China
| | - Iftikhar Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad Vehari-Campus, Vehari, 61100, Pakistan.
| | - Rashid Iqbal
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Allah Ditta
- School of Biological Sciences, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia; Department of Environmental Sciences, Shaheed Benazir Bhutto University Sheringal, Dir (Upper) Khyber Pakhtunkhwa, 18000, Pakistan.
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12
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Chen T, Wen XC, Zhang LJ, Tu SC, Zhang JH, Sun RN, Yan B. The geochemical and mineralogical controls on the release characteristics of potentially toxic elements from lead/zinc (Pb/Zn) mine tailings. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120328. [PMID: 36202267 DOI: 10.1016/j.envpol.2022.120328] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Large quantities of lead/zinc (Pb/Zn) mine tailings were deposited at tailings impoundments without proper management, which have posed considerable risks to the local ecosystem and residents in mining areas worldwide. Therefore, the geochemical behaviors of potentially toxic elements (PTEs) in tailings were in-depth investigated in this study by a coupled use of batch kinetic tests, statistical analysis and mineralogical characterization. The results indicated that among these studied PTEs, Cd concentration fluctuated within a wide range of 0.83-6.91 mg/kg, and showed the highest spatial heterogeneity. The mean Cd concentrations generally increased with depth. Cd were mainly partitioned in the exchangeable and carbonate fractions. The release potential of PTEs from tailings was ranged as: Cd > Mn > Zn > Pb > As, Cd > Pb > Zn > Mn > As and Cd > Pb > Mn > Zn > As, respectively, under the assumed environmental scenarios, i.e. acid rain, vegetation restoration, human gastrointestinal digestion. The results from mineralogical characterization indicated that quartz, sericite, calcite and pyrite were typical minerals, cumulatively accounting for over 80% of the tailings. Sulfides (arsenopyrite, galena, and sphalerite), carbonates (calcite, dolomite, cerussite and kutnahorite), oxides (limonite) were identified as the most relevant PTEs-bearing phases, which significantly contributed to PTEs release from tailings. A combined result of statistical, geochemical and mineralogical approaches would be provided valuable information for the alteration characteristics and contaminant release of Pb/Zn mine tailings.
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Affiliation(s)
- Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Xiao-Cui Wen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Li-Juan Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Shu-Cheng Tu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jun-Hao Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Ruo-Nan Sun
- Department of Civil and Environmental Engineering, Rice University, Houston, 77005, USA
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
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13
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Chen G, Ye Y, Yao N, Fu F, Hu N, Zhang Z. Deformation failure and acoustic emission characteristics of continuous graded waste rock cemented backfill under uniaxial compression. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80109-80122. [PMID: 36190631 DOI: 10.1007/s11356-022-23394-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
In order to study the effect of backfill aggregate particle size on the compressive strength and failure mode of cemented backfill, uniaxial compression tests were carried out on seven kinds of cemented backfills with different particle size gradations. By analyzing the AE characteristics during the failure process of the backfill, the damage evolution mechanism of the cemented backfill with different particle size gradations was discussed. The test results show that with the increase of the Talbot gradation index n, the compressive strength of the backfill specimens first increases and then decreases, and the failure mode gradually changes from shear failure to tensile failure. With the increase of particle size gradation, the particle size of aggregate increases, the interface between aggregate and cement matrix is more likely to be fractured, and the characteristic parameters of acoustic emission are more active. During the failure process of backfill, the AE energy rate increases rapidly in the plastic development stage, and reaches maximum value before and after the peak stress, which can be used as the precursor to judge the failure of waste rock cemented backfill. According to the test results, the damage model and constitutive equations of waste rock cemented backfill with different Talbot particle size gradations are established, which can provide engineering guidance for filling mined-out areas with waste rock to ensure safe production of mines.
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Affiliation(s)
- Guan Chen
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yicheng Ye
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Industrial Safety Engineering Technology Research Center of Hubei Province, Wuhan, 430081, China
| | - Nan Yao
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China.
| | - Fanghui Fu
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Nanyan Hu
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Zhen Zhang
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
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14
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Xiao M, Xu S, Yang B, Zeng G, Qian L, Huang H, Ren S. Contamination, Source Apportionment, and Health Risk Assessment of Heavy Metals in Farmland Soils Surrounding a Typical Copper Tailings Pond. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192114264. [PMID: 36361145 PMCID: PMC9656670 DOI: 10.3390/ijerph192114264] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/23/2022] [Accepted: 10/26/2022] [Indexed: 06/05/2023]
Abstract
Tailings resulting from mining and smelting activities may cause soil heavy-metal pollution and harm human health. To evaluate the environmental impact of heavy metals from tailings on farmland soils in the surrounding area, heavy metals (As, Cd, Cr, Cu, Ni, Pb, and Zn) in tailings and farmland soils in the vicinity of a typical copper tailings pond were analyzed. Contamination status, potential sources, and health risks for farmland soils were investigated. The results showed that the tailings contained a high concentration of Cu (1136.23 mg/kg). The concentrations of Cd and Cu in the farmland soils exceeded the soil quality standard. The geoaccumulation index (Igeo) indicated that the soils were moderately polluted by Cu and Cd, and slightly polluted by Ni, Cr, and Zn. The absolute principal component scores-multiple linear regression (APCS-MLR) model was applied for source apportionment. The results showed that tailings release is the main source of soil heavy-metals contamination, accounting for 35.81%, followed by agricultural activities (19.41%) and traffic emission (16.31%). The health risk assessment suggested that the children in the study region were exposed to non-carcinogenic risks caused by As, while the non-carcinogenic risk to adults and the carcinogenic risk to both adults and children were at acceptable levels. It is necessary to take effective measures to control heavy-metal contamination from tailings releases to protect humans, especially children, from adverse health risks.
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Affiliation(s)
- Minsi Xiao
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Shitong Xu
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Bing Yang
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Guangcong Zeng
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Lidan Qian
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Haiwei Huang
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
| | - Sili Ren
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341400, China
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341400, China
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15
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Anupong W, Jutamas K, On-Uma R, Alshiekheid M, Sabour A, Krishnan R, Lan Chi NT, Pugazhendhi A, Brindhadevi K. Bioremediation competence of Aspergillus flavus DDN on pond water contaminated by mining activities. CHEMOSPHERE 2022; 304:135250. [PMID: 35675871 DOI: 10.1016/j.chemosphere.2022.135250] [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: 03/04/2022] [Revised: 05/23/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
This research was performed to evaluate the possibilities of reducing the physicochemical properties of polluted pond water situated around the magnesite mine tailing through indigenous metal tolerant fungi. The physicochemical analysis results revealed that most of the physicochemical properties of pond water sample were crossing the permissible limits. From the muddy pond soil sample, Aspergillus flavus DDN was identified (through molecular characterization) as predominant metal tolerant fungal strain and it showed resistance to Cr(VI), Pb(II), Zn(II), Cd(II), and Mg(IV) up to 1000 μg mL-1 concentrations. This strain also effectively reduced (through biosorption) these metals in a short duration of the bioremediation process. In a lab-scale bioremediation study, the A. flavus DDN significantly reduced most of the physicochemical parameters crossing the permissible limit in polluted pond water in the presence of FM1 minimal media in 10 days of incubation. The dissolved oxygen level was significantly increased up to 74.91% from 5.86 ± 0.39 to 10.25 ± 0.95 in 10 days of treatment. The metal reduction and other physicochemical properties reduction were directly related to the biomass of A. flavus DDN. These findings suggest that A. flavus DDN can remove pollutants from magnesite mine tailing polluted pond water because elevated fungal biomass resulted in the highest percentage of pollutant reduction from the sample.
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Affiliation(s)
- Wongchai Anupong
- Department of Agricultural Economy and Development, Faculty of Agriculture, Chiang Mai University, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Khumchai Jutamas
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Ruangwong On-Uma
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Maha Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Amal Sabour
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Ramakrishnan Krishnan
- Department of Business, Harrisburg University of Science and Technology, Harrisburg, PA, 17101, USA
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Kathirvel Brindhadevi
- Center for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
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16
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Li Y, Gao P, Sun X, Li B, Guo L, Yang R, Su X, Gao W, Xu Z, Yan G, Wang Q, Sun W. Primary Succession Changes the Composition and Functioning of the Protist Community on Mine Tailings, Especially Phototrophic Protists. ACS ENVIRONMENTAL AU 2022; 2:396-408. [PMID: 37101458 PMCID: PMC10125303 DOI: 10.1021/acsenvironau.1c00066] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Primary succession in mine tailings is a prerequisite for tailing vegetation. Microorganisms, including bacteria, fungi, and protists, play an important role in this process in the driving force for improving the nutritional status. Compared to bacteria and fungi, protist populations have rarely been investigated regarding their role in mine tailings, especially for those inhabiting tailings associated with primary succession. Protists are the primary consumers of fungi and bacteria, and their predatory actions promote the release of nutrients immobilized in the microbial biomass, as well as the uptake and turnover of nutrients, affecting the functions of the wider ecosystems. In this study, three different types of mine tailings associated with three successional stages (original tailings, biological crusts, and Miscanthus sinensis grasslands) were selected to characterize the protistan community diversity, structure, and function during primary succession. Some members classified as consumers dominated the network of microbial communities in the tailings, especially in the original bare land tailings. The keystone phototrophs of Chlorophyceae and Trebouxiophyceae showed the highest relative abundance in the biological crusts and grassland rhizosphere, respectively. In addition, the co-occurrences between protist and bacterial taxa demonstrated that the proportion of protistan phototrophs gradually increased during primary succession. Further, the metagenomic analysis of protistan metabolic potential showed that abundances of many functional genes associated with photosynthesis increased during the primary succession of tailings. Overall, these results suggest that the primary succession of mine tailings drives the changes observed in the protistan community, and in turn, the protistan phototrophs facilitate the primary succession of tailings. This research offers an initial insight into the changes in biodiversity, structure, and function of the protistan community during ecological succession on tailings.
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Affiliation(s)
- Yongbin Li
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Pin Gao
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xiaoxu Sun
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Baoqin Li
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Lifang Guo
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Rui Yang
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xianfa Su
- School
of Environment, Key Laboratory of Yellow River and Huai River Water
Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P.R. China
| | - Wenlong Gao
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Zhimin Xu
- Engineering
and Technology Research Center for Agricultural Land Pollution Prevention
and Control of Guangdong Higher Education Institutes, College of Resources
and Environment, Zhongkai University of
Agriculture and Engineering, Guangzhou 510225, China
| | - Geng Yan
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Qi Wang
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Weimin Sun
- National−Regional
Joint Engineering Research Center for Soil Pollution Control and Remediation
in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,
Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- School
of Environment, Key Laboratory of Yellow River and Huai River Water
Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P.R. China
- . Fax: 86-020-87024123. Phone: 86-020-87024633
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17
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Xu DM, Fu RB. The mechanistic insights into the leaching behaviors of potentially toxic elements from the indigenous zinc smelting slags under the slag dumping site scenario. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129368. [PMID: 35897171 DOI: 10.1016/j.jhazmat.2022.129368] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/04/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Since lager quantities of the zinc (Zn) smelting slags were traditionally dumped at the indigenous Zn smelting sites, the release characterization of potentially toxic elements (PTEs) from the Zn smelting slags under various environmental conditions were of great significance for an environmental risk analysis. The acidification of the Zn smelting slags to pH= 4 and 6 would result in the leaching concentrations of Cd and Mn exceeding the fourth-class standard of surface water quality standard in China (GB3838-2002). Notably, most metals exhibited an amphoteric leaching pattern, where the highest leached concentrations of As, Cd, Cu, Mn, Pb, and Zn were 4.15, 4.21, 140.0, 78.1, 156.9 and 477.0 mg/L, respectively. In addition, the highest release of toxic metals within 96 h reached 0.17 % of As, 3.50 % of Cd, 2.77 % of Cu, 6.92 % of Mn, 0.13 % of Pb, and 2.57 % of Zn, respectively. The combined results of various characterization techniques suggested that the PTEs remobilization effected by rhizosphere-like organic acids were mainly controlled by the precipitation of newly formed Fe, Mn and Al (hydr) oxides and the complexation of organic ligands. The present study results could provide valuable insights into the long-term leaching behaviors of PTEs from the Zn smelting slags to reduce ecological hazard.
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Affiliation(s)
- Da-Mao Xu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Rong-Bing Fu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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18
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Deng J, Ning XA, Shen J, Ou W, Chen J, Qiu G, Wang Y, He Y. Biomass waste as a clean reductant for iron recovery of iron tailings by magnetization roasting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115435. [PMID: 35751253 DOI: 10.1016/j.jenvman.2022.115435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/10/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The magnetization roasting with coal as primary reductants adds cost and causes environmental pollution. Therefore, it is of great importance to investigate the biomass application as a reductant for magnetization roasting to recover iron from low-utilization iron tailings for emission mitigation and green utilization. This study systematically investigated the impact of biomass (pyrolysis gas from agricultural and forestry waste) as a reductant on the conversion of iron tailings to magnetite in magnetization roasting. Additionally, the thermal decomposition of biomass, phase transformation and microstructure evolution of iron tailings were analyzed by TG, XRD, BET, and other methods to elucidate the conversion mechanism for facilitating magnetized hematite in iron tailings with biomass-derived gas. The results showed that woody biomass was a more appropriate reductant for magnetization roasting; 650 °C was the optimal temperature for the complete transformation of hematite to magnetite by reduction roasting with biomass waste. Through magnetic separation, the concentrate with an iron grade of 62.04% and iron recovery of 95.29% was obtained, and the saturation magnetization was enhanced from 0.60 emu/g to 58.03 emu/g of iron tailings. During the magnetization roasting, CO and H2 generated from biomass reduced the hematite in tailings particles from interior to exterior, forming a loose structure with rich microfissures, facilitating the subsequent separation operations. This study offers a novel reference for applying biomass to exploit hematite minerals and shows the potential of biomass for energy savings and emission reduction in the utilization of iron tailing resources.
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Affiliation(s)
- Jinhuan Deng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xun-An Ning
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Junhua Shen
- Shaoguan Pengrui Environmental Protection Technology Co., Ltd., Shaoguan, 512625, China
| | - Weixuan Ou
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jiayi Chen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guoqiang Qiu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yi Wang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yao He
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
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Penrose B, MacIntosh AE, Parbhakar-Fox A, Smith LBE, Sawyer T, D'Agnese E, Carver S. Heavy metal wombats? Metal exposure pathways to bare-nosed wombats (Vombatus ursinus) living on remediated tin mine tailings. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155526. [PMID: 35489482 DOI: 10.1016/j.scitotenv.2022.155526] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Rehabilitation of disused mine sites through stabilisation and botanical restoration is ecologically important, but metal transfer pathways to colonising wildlife are often less understood and have never been studied in marsupials. The rehabilitated Royal George tin mine tailings (Tasmania, Australia) and colonisation by bare-nosed wombats (Vombatus ursinus) represented an opportunity to examine potential metal transfer from mine tailings to an herbivorous marsupial. The aim of this study was to examine metal transfer pathways from the mine tailings to wombats, and to determine if wombats are at risk from metal exposure. Concentrations of metals were measured in the tailings substrate, surface water and vegetation, as well as fur samples from a resident wombat, and non-resident (control) wombats. The mineralogy of the tailings is dominated by quartz, muscovite, feldspars, topaz, kaolinite and calcite. Concentrations of several metals were high (exceeding varying health standards) in the tailings (As, Cu, Hg, Pb, Ni, Zn), water (As, Cd, Cu, Zn) and vegetation (As, Cd, Cu, Pb, Mn, Zn). Relative to non-resident wombats, elevated levels of As, Cd, Cu, Pb and Sn were measured in the fur of a resident wombat. Based on modelling of the exposure pathways, consumption of plant material is the most likely metal transfer pathway for As, Cu and Pb, although the risks from ingestion of tailings to this fossorial marsupial should not be discounted. This study is the first to investigate metal exposure pathways to marsupials using rehabilitated mine tailings. Further research is needed to accurately quantify ecological risks and toxicity for wombats and other marsupials native to mining landscapes.
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Affiliation(s)
- Beth Penrose
- Tasmanian Institute of Agriculture, University of Tasmania, Private Bag 98, Hobart, Tas 7001, Australia.
| | - Amy E MacIntosh
- School of Natural Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia
| | - Anita Parbhakar-Fox
- Centre for Ore Deposit and Earth Sciences (CODES), University of Tasmania, Private Bag 79, Sandy Bay, TAS 7001, Australia
| | - Laura B E Smith
- School of Natural Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia
| | - Terrie Sawyer
- Centre for Ore Deposit and Earth Sciences (CODES), University of Tasmania, Private Bag 79, Sandy Bay, TAS 7001, Australia
| | - Erin D'Agnese
- Tasmanian Institute of Agriculture, University of Tasmania, Private Bag 98, Hobart, Tas 7001, Australia
| | - Scott Carver
- School of Natural Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia
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20
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Xu DM, Fu RB. A typical case study from smelter-contaminated soil: new insights into the environmental availability of heavy metals using an integrated mineralogy characterization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57296-57305. [PMID: 35352226 DOI: 10.1007/s11356-022-19823-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Mineralogy was an important driver for the environmental release of heavy metals. Therefore, the present work was conducted by coupling mineral liberation analyzer (MLA) with complementary geochemical tests to evaluate the geochemical behaviors and their potential environmental risks of heavy metals in the smelter contaminated soil. MLA analysis showed that the soil contained 34.0% of quartz, 17.15% of biotite, 1.36% of metal sulfides, 19.48% of metal oxides, and 0.04% of gypsum. Moreover, As, Pb, and Zn were primarily hosted by arsenopyrite (29.29%), galena (88.41%), and limonite (24.15%), respectively. The integrated geochemical results indicated that among the studied metals, Cd, Cu, Mn, Pb, and Zn were found to be more bioavailable, bioaccessible, and mobile. Based on the combined mineralogical and geochemical results, the environmental release of smelter-driven elements such as Cd, Cu, Mn, Pb, and Zn were mainly controlled by the acidic dissolution of minerals with neutralizing potential, the reductive dissolution of Fe/Mn oxides, and the partial oxidation of metal sulfide minerals. The present study results have confirmed the great importance of mineralogy analysis and geochemical approaches to explain the contribution of smelting activities to soil pollution risks.
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Affiliation(s)
- Da-Mao Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
- Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai, 200092, People's Republic of China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China
| | - Rong-Bing Fu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China.
- Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai, 200092, People's Republic of China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China.
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21
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Bai Y, Zhang T, Zhai Y, Jia Y, Ren K, Hong J. Strategies for improving the environmental performance of nickel production in China: Insight into a life cycle assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 312:114949. [PMID: 35367689 DOI: 10.1016/j.jenvman.2022.114949] [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: 11/18/2021] [Revised: 03/03/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
Nickel is a critical metal for global low-carbon energy transition, but its production processes require massive energy inputs and emit large amounts of pollutants. This study constructed life cycle inventories of the mainstream electrolytic nickel production chains in China at the industrial level and subsequently evaluated their environmental performance via a regionalised life cycle impact assessment method. Results show that environmental indicator results of the electrolytic nickel production from the leaching electrowinning method were 17.7%-40.2% lower than those from the grind and flotation electrolytic method. At the endpoint level, the nickel mining and beneficiation stages contributed 54.7%-65.91% of human health damage, 83.0%-84.7% of ecosystem quality damage and 80.8%-83.7% of resources damage. The key processes, including direct processes, cement input and energy consumption (e.g., electricity and coal), accounted for more than 62.1% of the impacts in the key midpoint categories. The potential environmental damage of China's nickel mining and beneficiation industry increased by 29.2% from 2010 to 2018 because of the growing trend of nickel ore demand. In the case that China's nickel metal recovery rate reaches the global average level, then approximately 3.83 × 102 Daly of human health damage, 59.83 Species·year of ecosystem quality damage and 1.64 × 108 $ of resources damage can be avoided annually. Strategies for promoting the full assimilation of renewable electricity, applying the clinker-free cemented backfill materials in the mining process, precious recovery by bioleaching from tailings and reusing waste rock as building materials are recommended. Meanwhile, extended producer responsibility should to be comprehensively implemented in the nickel-related industries to alleviate the environmental implications and nickel supply pressures from geo-mining.
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Affiliation(s)
- Yueyang Bai
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Tianzuo Zhang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yijie Zhai
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yuke Jia
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Ke Ren
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Jinglan Hong
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China; Shandong University Climate Change and Health Center, Public Health School, Shandong University, Jinan, 250012, China.
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22
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Liu M, Liu X, Sun P, Tang G, Yang Y, Kan Y, Ye M, Zong Z. Thermoplastic polyurethane composites based on aluminum hypophosphite/modified iron tailings system with outstanding fire performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.52486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mengru Liu
- School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan China
| | - Xinliang Liu
- School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan China
| | - Po Sun
- Analysis and Testing Central Facility Anhui University of Technology Ma'anshan China
| | - Gang Tang
- School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan China
| | - Yadong Yang
- School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan China
| | - Yongchun Kan
- State Key Laboratory of Fire Science University of Science and Technology of China Hefei China
| | - Mingfu Ye
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials Anhui University Hefei China
| | - Zhifang Zong
- School of Civil Engineering and Architecture Anhui University of Technology Ma'anshan China
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23
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Liu Q, Tang Q, Zhao W, Su Z, Liang C, Duan X, Liang J. Ultrafine Grinded and Silane Grafted Iron Ore Tailings as Reinforcing Filler of Styrene Butadiene Rubber. MATERIALS 2022; 15:ma15051756. [PMID: 35268987 PMCID: PMC8911268 DOI: 10.3390/ma15051756] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 02/01/2023]
Abstract
In order to realize the high value-added resource utilization of solid waste and reduce the cost of rubber manufacturing, iron ore tailings (IOTs) were used as raw material to prepare a reinforcing filler of rubber through ultrafine grinding and surface organic modification techniques. We studied the effects of ball mill grinding conditions on the particle size and distribution of grinded iron ore tailings (G-IOTs). The effects of bis-(triethoxy-silyl-propyl)-tetrasulfide (Si69)-modified G-IOT (Si69-G-IOT) loading levels on the cure characteristics, static mechanical and dynamic mechanical properties of the styrene butadiene rubber (SBR) composites were also explored in this paper. The grinding and modification mechanism of IOTs and the combination of filler and SBR matrix were explored by grinding simulation of population balance model, X-ray diffraction analysis, Fourier transform infrared spectroscopy and scanning electron microscopy. The results showed that when grinding IOTs at 2000 r/min for 150 min, the particle size distribution of the resulting G-IOTs was the narrowest, with a D90 value of 4.42 μm. The tensile strength and elongation at break of SBR filled with 120 phr Si69-G-IOT were 14.97 MPa and 596.36%, respectively.
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Affiliation(s)
- Qian Liu
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
| | - Qingguo Tang
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
- Key Laboratory of Special Function Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China
- Correspondence:
| | - Weiwei Zhao
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
| | - Zhiyuan Su
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
| | - Cong Liang
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
| | - Xinhui Duan
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
- Key Laboratory of Special Function Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China
| | - Jinsheng Liang
- Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China; (Q.L.); (W.Z.); (Z.S.); (C.L.); (X.D.); (J.L.)
- Key Laboratory of Special Function Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China
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24
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Pan M, Wang W, Duan C, Jiang H, Zhao Y, Qiao J, Huang L, Wang Z, Shen Y, Shi W. Process enhancement of vibrating classifier for tailings classification-dewatering and industrial application. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Maltsev Y, Maltseva S, Maltseva I. Diversity of Cyanobacteria and Algae During Primary Succession in Iron Ore Tailing Dumps. MICROBIAL ECOLOGY 2022; 83:408-423. [PMID: 33893532 DOI: 10.1007/s00248-021-01759-y] [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: 02/15/2021] [Accepted: 04/18/2021] [Indexed: 06/12/2023]
Abstract
The extraction of commercial minerals is often accompanied by the formation of large areas of quarry and dump technogenic ecosystems. This stimulates the search for measures to reduce their negative impact on the environment, as well as a detailed study of all the constituent elements of ecosystems that spontaneously or after reclamation form on them. Primary stages of syngenesis on the tailing dumps of iron ore mines in Kryvorizhzhia took place involving cyanobacteria and eukaryotic algae. The dynamics of the community structures of algae and cyanobacteria depends on the mineralogical composition of tailings, salinity conditions, pH, and content of particles of physical clay and humus. The assessment of the features of the dynamics of algae communities was carried out based on the ordination procedure because of the method of non-metric multidimensional scaling. The considered environmental variables were statistically significant predictors of community structure and could explain 47-90% of the variation in measurements. Diagnostic signs of the species composition of communities of algae and cyanobacteria tailing dumps were established by physical and chemical parameters. An increase in the content of physical clay particles in the substrate and a pH shift towards the alkaline side increased the species richness of cyanobacteria, while an increase in the humus content increased the total species diversity. Based on the specificity of the type of growth and the species composition of algae communities, when describing the primary successions, it is proposed to allocate the following stages of development of algae and cyanobacteria communities: dispersal aerophyton, stratose epilitophyton, algal crust, mixed moss and algal crust, and edaphone.
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Affiliation(s)
- Yevhen Maltsev
- К.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow, 127276, Russia.
| | - Svetlana Maltseva
- К.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow, 127276, Russia
| | - Irina Maltseva
- Bohdan Khmelnitsky Melitopol State Pedagogical University, Melitopol, 72312, Ukraine
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26
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Rodriguez Rodriguez N, Everaert M, Folens K, Bussé J, Abo Atia T, Williamson AJ, Machiels L, Spooren J, Boon N, Du Laing G, Binnemans K. Combined Hydro–Solvo–Bioleaching Approach toward the Valorization of a Sulfidic Copper Mine Tailing. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nerea Rodriguez Rodriguez
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. box 2404, Leuven B-3001, Belgium
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
| | - Maarten Everaert
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO n.v.), Boeretang 200, Mol B-2400, Belgium
| | - Karel Folens
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent B-9000, Belgium
| | - Jakob Bussé
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. box 2404, Leuven B-3001, Belgium
| | - Thomas Abo Atia
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. box 2404, Leuven B-3001, Belgium
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO n.v.), Boeretang 200, Mol B-2400, Belgium
| | - Adam J. Williamson
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent B-9000, Belgium
| | - Lieven Machiels
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. box 2404, Leuven B-3001, Belgium
- SIM vzw, Technologiepark 48, Zwijnaarde, Gent B-9052, Belgium
| | - Jeroen Spooren
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO n.v.), Boeretang 200, Mol B-2400, Belgium
| | - Nico Boon
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent B-9000, Belgium
- Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), p/a Ghent University, Coupure Links 653, Gent 9000, Belgium
| | - Gijs Du Laing
- Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), p/a Ghent University, Coupure Links 653, Gent 9000, Belgium
- Laboratory of Analytical Chemistry and Applied Ecochemistry (Ecochem), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent B-9000, Belgium
| | - Koen Binnemans
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. box 2404, Leuven B-3001, Belgium
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Cheng J, Shao Z, Xu T, Wei W, Qiao R, Yuan Y. Experimental research on sintering construction spoil bricks based on microwave heating technology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:69367-69380. [PMID: 34302238 DOI: 10.1007/s11356-021-15331-1] [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: 04/28/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
The accumulation of construction spoil has brought great challenges to urban construction and environmental protection. It is an effective way to solve the problem of construction spoil accumulation by using construction spoil to sinter brick. At the same time, it can also reduce the waste of clay resources and farmland destruction caused by the production of sintered brick. Microwave sintering technology can greatly improve the sintering efficiency of materials. Sintering brick by microwave sintering technology can avoid a series of environmental problems in the traditional production process of sintered brick and can lead to an eco-friendly production of bricks. In this study, construction spoil was used as the raw material, and Al2O3, Fe2O3, and TiO2 powders were studied as MASM for improving the temperature rise rate and sintering efficiency of the brick in microwave sintering process. The characteristics of construction spoil brick sintered by microwave were studied by series experiments including unit weight, compressive strength, and meso-analysis. Results proven that microwave sintering technology is an efficient technology for brick making. The MASM can effectively increase the temperature rise rate of the sample and simultaneously improve the impermeability of the sample and sintering efficiency.
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Affiliation(s)
- Junxi Cheng
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China
| | - Zhushan Shao
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China.
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China.
| | - Teng Xu
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China
| | - Wei Wei
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China
| | - Rujia Qiao
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China
| | - Yuan Yuan
- School of Civil Engineering, Xi'an University of Architecture & Technology, 710055, Xi'an, China
- Shaanxi Key Lab of Geotechnical and Underground Space Engineering, 710055, Xi'an, China
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28
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Zheng B, Wang J, Zhang D, Zhao L, Wang W. Laboratory experimental study of the evaporation and mechanical behaviour of deposited tailings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67565-67576. [PMID: 34258702 DOI: 10.1007/s11356-021-14951-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Surface deposition has been widely used in the mining industry to manage mill tailings. Tailings are generally discharged in the form of a slurry into tailings ponds. The slurried tailings are deposited in layers that undergo complex processes, e.g. evaporation, desiccation and consolidation. The evaporation of the deposited tailings controls their geotechnical engineering behaviour, which is necessary to characterise the physical properties. In this study, a constant temperature device was employed in evaporation tests to investigate two classes of deposited tailings, and the effects of the initial concentration, particle size, exposure area and deposited layer thickness on the evaporation processes were analysed. The test results showed four stages in the evaporation processes of deposited coarse and fine tailings. Dewatering of the deposited tailings occurred during the first two stages, which were keys to improving the desiccation efficiency of the tailings in the pond. The exposure area and deposited layer thickness also had a considerable influence on evaporation. The evaporation rate increased with the exposure area and layer thickness. Direct shear tests were performed to measure the shear strength of intact tailings during evaporation and used to determine the variation law of the mechanical properties of the test tailings.
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Affiliation(s)
- Binbin Zheng
- School of Management Science and Engineering, Shandong Technology and Business University, Yantai, 264005, Shandong, China.
| | - Jiahe Wang
- School of Management Science and Engineering, Shandong Technology and Business University, Yantai, 264005, Shandong, China
| | - Dongming Zhang
- School of Resources and Safety Engineering, Chongqing University, Chongqing, 400030, China
| | - Lei Zhao
- School of Engineering and Information Technology, Federation University Australia, University Drive, Mt Helen, VIC, 3353, Australia
| | - Wensong Wang
- School of Resources and Safety Engineering, Chongqing University, Chongqing, 400030, China
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29
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Maltsev Y, Maltseva A, Maltseva S. Differential Zn and Mn sensitivity of microalgae species from genera Bracteacoccus and Lobosphaera. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:57412-57423. [PMID: 34409533 DOI: 10.1007/s11356-021-15981-1] [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: 05/06/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
One of the most common pollutants in natural ecosystems is heavy metals. Algae are sensitive to the action of heavy metals. This allows to use algae to assess the toxicity of heavy metals, bioindication, and during phycoremediation. This study examines the effect of different Zn and Mn concentrations (1.0, 5.0, 25.0, 50.0, 500.0, 1000.0 mg L-1) on green algae Bracteacoccus minor and Lobosphaera incisa in a chronic bioassay. The results of this study showed that the toxic effect of Zn and Mn on B. minor and L. incisa begins to manifest itself at the lowest of the studied metal concentrations-1 mg L-1. The critical concentration of Zn, which leads to the complete death of B. minor and L. incisa, is 50.0 and 500.0 mg L-1, and Mn is 1000.0 mg L-1 and 500.0 mg L-1, respectively. It was found that principal component (PC) 1 accounts for 60.47% of the total variance and reflects changes associated with low concentrations of heavy metals (up to 5.0 mg L-1). PC2 accounts for 27.95% of the total variance. PC2 is mostly associated with high concentrations of ions of heavy metals. Thus, the effect of Zn and Mn concentrations up to 5 mg L-1and above 50 mg L-1on B. minor and L. incisa has a different character. At the same time, the response of the studied algae species to the action of Zn and Mn has individual differences. In general, B. minor is more resistant to Mn, while L. incisa is more resistant to Zn.
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Affiliation(s)
- Yevhen Maltsev
- К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276, Moscow, Russia.
| | - Anna Maltseva
- Bogdan Khmelnitsky Melitopol State Pedagogical University, Melitopol, 72312, Ukraine
| | - Svetlana Maltseva
- К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276, Moscow, Russia
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Fang N, He Q, Sheng L, Xi Y, Zhang L, Liu H, Cheng H. Toward broader applications of iron ore waste in pollution control: Adsorption of norfloxacin. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126273. [PMID: 34329023 DOI: 10.1016/j.jhazmat.2021.126273] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 06/13/2023]
Abstract
Norfloxacin, a kind of antibiotic frequently detected in environments, represents a group of non-persistent organic pollutants with latent risks to the ecosystem. Iron ore waste, generated and accumulated in large quantities from the iron/steel industry, was evaluated as a potential sorbent for norfloxacin removal. Kinetics analysis showed that the adsorption process reached equilibrium at 72 h, and the adsorption process could be best defined by the pseudo-second-order kinetics with the primary mechanism of norfloxacin adsorption suggested to be cation exchange. Further, adsorption of norfloxacin to iron ore waste was shown to be facilitated by the pH range of 2-10, low cation concentration, and low temperature, which are characteristic of natural surface waters, suggesting the potential of practical applications in aquatic environments. These findings provide new insight into the potentials of beneficial reuse for iron ore waste in the adsorptive removal of environmental pollutants.
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Affiliation(s)
- Nan Fang
- Biology institute, Hebei academy of science, Shijiazhuang 050081, PR China; Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, PR China
| | - Qiang He
- Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA
| | - Long Sheng
- Chengde City Geological Team, Chengde 067000, PR China
| | - Yanhua Xi
- Biology institute, Hebei academy of science, Shijiazhuang 050081, PR China
| | - Liping Zhang
- Biology institute, Hebei academy of science, Shijiazhuang 050081, PR China
| | - Hongwei Liu
- Biology institute, Hebei academy of science, Shijiazhuang 050081, PR China
| | - Huicai Cheng
- Biology institute, Hebei academy of science, Shijiazhuang 050081, PR China.
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Wang JX, Xu DM, Fu RB, Chen JP. Bioavailability Assessment of Heavy Metals Using Various Multi-Element Extractants in an Indigenous Zinc Smelting Contaminated Site, Southwestern China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:8560. [PMID: 34444310 PMCID: PMC8392273 DOI: 10.3390/ijerph18168560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 11/16/2022]
Abstract
Despite recent studies have investigated the strong influences of smelting activities on heavy metal contamination in the soil environment, little studies have been conducted on the current information about the potential environmental risks posed by toxic heavy metals in smelting contaminated sites. In the present study, a combination of the bioavailability, speciation, and release kinetics of toxic heavy metals in the indigenous zinc smelting contaminated soil were reliably used as an effective tool to support site risk assessment. The bioavailability results revealed that the bioavailable metal concentrations were intrinsically dependent on the types of chemical extractants. Interestingly, 0.02 mol/L EDTA + 0.5 mol/L CH3COONH4 was found to be the best extractant, which extracted 30.21% of Cu, 31.54% of Mn, 2.39% of Ni and 28.89% of Zn, respectively. The sequential extraction results suggested that Cd, Pb, and Zn were the most mobile elements, which would pose the potential risks to the environment. The correlation of metal bioavailability with their fractionation implied that the exchangeable metal fractions were easily extracted by CaCl2 and Mehlich 1, while the carbonate and organic bound metal fractions could be extracted by EDTA and DTPA with stronger chelating ability. Moreover, the kinetic modeling results suggested that the chemical desorption mechanism might be the major factor controlling heavy metal release. These results could provide some valuable references for the risk assessment and management of heavy metals in the smelting contaminated sites.
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Affiliation(s)
- Jun-Xian Wang
- Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, China;
- Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Da-Mao Xu
- Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, China;
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Rong-Bing Fu
- Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, China;
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Jia-Peng Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
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Jiang L, Sun H, Peng T, Ding W, Liu B, Liu Q. Comprehensive evaluation of environmental availability, pollution level and leaching heavy metals behavior in non-ferrous metal tailings. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112639. [PMID: 33991766 DOI: 10.1016/j.jenvman.2021.112639] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/06/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Amounts of abandoned non-ferrous metal tailings(NMT) piled in the open air are released under geochemistry and migrated to the surrounding environment, causing severe harm to the environment and human health. It is essential to evaluate the heavy metal pollution of NMT. In this study, RAC, Igeo, EF, and RI were used to evaluate the heavy metal pollution risk of NMT. To uniformly simplify the four evaluation results into a comprehensive evaluation result that can reflect the degree of heavy metal pollution risk. Assuming heavy metals' concentration, occurrence, and mobility make the same contribution to the degree of heavy metal pollution. Score the above four evaluation results according to the pollution level, and then weigh the scores to obtain a complete integral result: CRSMo (17) > CRSCd (13) > CRSPb (11) > CRSSr(8) > CRSMn(7) > CRSCu(5) > CRSNi(4) > CRSCr(3) = CRSZn(3). Five higher risk heavy metal elements Mo, Cd, Pb, Sr, and Mn, were found. Cu, Ni, Cr, and Zn are at lower risk. The results showed that Mo, Mn, and Sr's evaluation is more accurate. Pb and Cd have not reached the detection limit for the time being, indicating that the release of heavy metal elements in tailings is not only related to the total concentration, occurrence state, and mobility of heavy metals but also affected by the pH of the tailings. This study's most significant finding is to propose a comprehensive integration result of pollution risk levels based on RAC, Igeo, EF, and RI as the comprehensive evaluation result of heavy metal pollution risk. Simultaneously, this research is also a valuable supplement to the existing risk assessment of heavy metal pollution.
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Affiliation(s)
- Lei Jiang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China; School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Hongjuan Sun
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Tongjiang Peng
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Wenjin Ding
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Bo Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Quan Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China; Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang, 621010, China
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Abstract
Mullite (3Al2O3·2SiO2) is an aluminosilicate characterized by excellent physical properties, which makes it an important ceramic material. In this way, ceramics based on mullite find applications in different technological fields as refractory material (metallurgy, glass, ceramics, etc.), matrix in composite materials for high temperature applications, substrate in multilayer packaging, protective coatings, components of turbine engines, windows transparent to infrared radiation, etc. However, mullite is scarce in nature so it has to be manufactured through different synthesis methods, such as sintering, melting-crystallization or through a sol-gel route. Commonly, mullite is fabricated from pure technical grade raw materials, making the manufacturing process expensive. An alternative to lowering the cost is the use of mining waste as silica (SiO2) and alumina (Al2O3) feedstock, which are the necessary chemical compounds required to manufacture mullite ceramics. In addition to the economic benefits, the use of mining waste brings out environmental benefits as it prevents the over-exploitation of natural resources and reduces the volume of mining waste that needs to be managed. This article reviews the scientific studies carried out in order to use waste (steriles and tailings) generated in mining activities for the manufacture of clay-based ceramic materials containing mullite as a main crystalline phase.
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Punia A. Role of temperature, wind, and precipitation in heavy metal contamination at copper mines: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:4056-4072. [PMID: 33188519 DOI: 10.1007/s11356-020-11580-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
The increasing demand for minerals pressurizing the mining authorities to extract low-grade ore results in more mining waste and degradation of the environment. The main aim of review was to understand the role of climatic factors (temperature, wind, and precipitation) in dispersal and mobility of heavy metals in soil, water, and vegetation in Cu mining region. The major source of contamination in the mining sector is tailings, overburden rocks, and abandoned mines. The contaminates or fine particles of sulfide-rich mining waste follow two major pathways for the dispersal: aerial and leaching. Sulfides on exposure to oxygen and water generate acid mine drainage which results in leaching of heavy metals. The pit water of abandoned mines is also a cause of concern which contaminates the groundwater resources. Climatic factors such as temperature, precipitation, and wind significantly influence the paths of contaminate dispersal. In arid/semi-arid regions, high temperature forms fine-grained efflorescence salts on tailings or exposed surficial mines which are carried away by strong winds/water and contaminates the surroundings. In wet regions, the leaching of heavy metals from both tailings and overburden rocks sulfides results in environmental contamination. The application of impermeable layers is highly recommended. The climatic factors (temperature, wind, and precipitation) significantly control the dispersal and mobility of heavy metals in Cu mining region. The implementation of waste management policies and pollution control technologies is recommended after considering the climatic factors.
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Affiliation(s)
- Anita Punia
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
- Department of Civil Engineering, Indian Institute of Technology, Guwahati, Assam, 781039, India.
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