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Wang S, Xu Z, Tian X, Hu H, Wang J, Shan H, Lou M, Liu X, Gu H. Profiling mechanism of Hippophae rhamnoides phytoremediation on microecosystem of rhizosphere soil surrounding a magnetite tailings pond in North China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 286:117167. [PMID: 39405974 DOI: 10.1016/j.ecoenv.2024.117167] [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: 07/20/2024] [Revised: 09/24/2024] [Accepted: 10/06/2024] [Indexed: 11/08/2024]
Abstract
Tailings pond poses a serious threat to the surrounding environment. This study aimed to explore the current status and mechanism of Hippophae rhamnoides (H. rhamnoides) restoration in the Zhoutaizi magnetite tailings pond in Chengde city by analyzing the physicochemical properties, heavy metal content, and microbial community characteristics of the rhizosphere soil of H. rhamnoides. Rhizosphere soil samples were collected from the planting areas (10 m, 50 m, and 80 m) at distances of 10, 50, and 80 m from the mountain, the dead plants areas (D) at a distance of 80 m from the mountain, and the unplanted areas (U) in the center of the Zhoutaizi magnetite tailings pond. The available manganese (Mn) content in groups 10 m, 50 m, 80 m, and D was higher than in group U (p< 0.05). Mn contributed to the relative abundances of Articulospora, Mortierella, Minimedusa, and Knufia, but negatively correlated with that of Fusarium and Cistella (p< 0.05). These results indicated that H. rhamnoides can improve soil quality and microbial community structure by increasing Mn content. The Chao and Ace indices in groups 10 m, 50 m, 80 m and D were higher than in group U (p< 0.05), implying that H. rhamnoides can increase the total number of soil microbial species. The electrical conductivity (EC) of groups D and U was higher than that of the other groups (p< 0.05). EC was positively correlated with Cistella, while negatively correlated with Minimedusa and Knufia (p< 0.05). Therefore, we speculated that the increase of harmful bacteria and the decrease of beneficial bacteria caused by high EC were one of the reasons for H. rhamnoides death. In short, H. rhamnoides can be used to some extent for restoring magnetite tailings pond, but high EC is the main obstacle to its restoration. This study provides a theoretical basis for the construction of green mines.
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Affiliation(s)
- Shuyuan Wang
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Zhaohe Xu
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China; Key Laboratory of Botany (Hebei Minzu Normal University) State Ethnic Affairs Commission, Chengde 067000, China
| | - Xue Tian
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Huannuo Hu
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Jiaqi Wang
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Huiqi Shan
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Mengjie Lou
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China
| | - Xiaoguang Liu
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China; Key Laboratory of Botany (Hebei Minzu Normal University) State Ethnic Affairs Commission, Chengde 067000, China
| | - Hanqi Gu
- School of Biology and Food Science, Hebei Minzu Normal University, Chengde 067000, China; Key Laboratory of Botany (Hebei Minzu Normal University) State Ethnic Affairs Commission, Chengde 067000, China.
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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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Wang YW, Bai DS, Luo XG, Zhang Y. Effects of Setaria viridis on heavy metal enrichment tolerance and bacterial community establishment in high-sulfur coal gangue. CHEMOSPHERE 2024; 351:141265. [PMID: 38246497 DOI: 10.1016/j.chemosphere.2024.141265] [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: 11/23/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
Plant enrichment and tolerance to heavy metals are crucial for the phytoremediation of coal gangue mountain. However, understanding of how plants mobilize and tolerate heavy metals in coal gangue is limited. This study conducted potted experiments using Setaria viridis as a pioneer remediation plant to evaluate its tolerance to coal gangue, its mobilization and enrichment of metals, and its impact on the soil environment. Results showed that the addition of 40% gangue enhanced plant metal and oxidative stress resistance, thereby promoting plant growth. However, over 80% of the gangue inhibited the chlorophyll content, photoelectron conduction rate, and biomass of S. viridis, leading to cellular peroxidative stress. An analysis of metal resistance showed that endogenous S in coal gangue promoted the accumulation of glutathione, plant metal chelators, and non-protein thiols, thereby enhancing its resistance to metal stress. Setaria viridis cultivation affected soil properties by decreasing nitrogen, phosphorus, conductivity, and urease and increasing sucrase and acid phosphatase in the rhizosphere soil. In addition, S. viridis planting increased V, Cr, Ni, As, and Zn in the exchangeable and carbonate-bound states within the gangue, effectively enriching Cd, Cr, Fe, S, U, Cu, and V. The increased mobility of Cd and Pb was correlated with a higher abundance of Proteobacteria and Acidobacteria. Heavy metals, such as As, Fe, V, Mn, Ni, and Cu, along with environmental factors, including total nitrogen, total phosphorus, urease, and acid phosphatase, were the primary regulatory factors for Sphingomonas, Gemmatimonas, and Bryobacter. In summary, S. viridis adapted to gangue stress by modulating antioxidant and elemental enrichment systems and regulating the release and uptake of heavy metals through enhanced bacterial abundance and the recruitment of gangue-tolerant bacteria. These findings highlight the potential of S. viridis for plant enrichment in coal gangue areas and will aid the restoration and remediation of these environments.
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Affiliation(s)
- Yi-Wang Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | | | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
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Mu H, Wan W, Song J, Kuang R, Deng T. Mitochondrial Lipid Peroxidation and Microsomal Drug-metabolizing Enzyme Activity of Rat Hepatotoxicity under Heavy Metals from Slag Waste Exposure. Cell Biochem Biophys 2023:10.1007/s12013-023-01134-3. [PMID: 37268808 DOI: 10.1007/s12013-023-01134-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/04/2023] [Indexed: 06/04/2023]
Abstract
Heavy metals from slag waste (HMSWs) have attracted much attention because of their serious toxicity to the environment and human organs, especially hepatotoxicity. The aim of this study was to explore the effects of different HMSWs exposure on mitochondrial lipid peroxidation, microsomal drug metabolizing enzyme activities as well as their relationship in the rat liver injury. Based on toxicogenomic analysis, heavy metals including iron, copper, cobalt, nickel and manganese, might interfere with pathophysiological processes such as oxidative stress, cell death, and energy metabolism regulation in vivo, and participate in the regulation of HIF-1 signaling pathway, peroxisomes, drug metabolism-cytochrome P450, ferroptosis, and other signaling pathways. HMSWs exposure caused weight loss, and significantly increased lactate dehydrogenase (LDH), malondialdehyde (MDA), alanine transaminase (ALT), and aspartate transaminase (AST) in different groups of rat liver, suggesting the presence of mitochondrial lipid peroxidation damage. In addition, the ratios of AST/ALT and ALT/LDH were down-regulated, especially the ALT/LDH ratios were less than 1, indicating that hepatic ischemic injury occurred in the process of liver injury. The superoxide dismutase (SOD) and mitochondrial membrane potential (MMP) activities in rats also showed significant decreases, indicating the occurrence of hepatic oxidative/antioxidant dysfunction imbalance. Further decision tree analysis of live biochemical abnormalities suggested that AST > 58.78 U/gprot and MDA > 173.2 nmol/mgprot could be used for hepatotoxicity warning. Liver microsomal cytochrome P4501A2 (CYP1A2) and 3A1 (CYP3A1) enzymes were also involved in the hepatotoxic process of heavy metals. These results suggest that lipid peroxidation damage and metabolic damage in liver mitochondria and peroxisomes, may be one of the key events in heavy metal-induced liver injury.
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Affiliation(s)
- Haishuo Mu
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Wangjun Wan
- Technology Center of Hangzhou Customs, Hangzhou, China
| | - Jingwu Song
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Rong Kuang
- NMPA Key Laboratory for Animal Alternative Testing Technology of Cosmetics, Zhejiang Institute for Food and Drug Control, Hangzhou, China
| | - Tongle Deng
- College of Life Sciences, China Jiliang University, Hangzhou, China.
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Wang X, Wu Y, Xie R, Yang K, Wu H, Wang T. Effects of Zinc Smelting Waste Slag Treated with Root Organic Acids on the Liver of Zebrafish (Danio rerio). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:1167-1175. [PMID: 33554276 DOI: 10.1007/s00128-021-03119-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Vegetation reconstruction was widely adopted for the waste slag site. But the toxic elements may be made public from slag due to the organic acid secreted by plant roots, which will pollute the surrounding environment and harm human health. The purpose of the study was to evaluate the harm of toxic substances released from zinc (Zn) smelting waste slag to zebrafish. The effect was simulated by adding organic acid to slag, and the toxicity of the slag was evaluated through the enzyme activity, genetic toxicity, tissue sections of zebrafish liver tissue. The results showed that more heavy metals were made public from the slag, as the concentration of organic acids increased. Exposure to toxic substances for 14 days, the antioxidant enzyme activities, termed as superoxide dismutase (SOD) and catalase (CAT), were significantly affected, which caused obvious malondialdehyde (MDA) accumulation. A comet assay revealed dose-dependent DNA damage in hepatocytes. Depending on the histopathological analysis, atrophy and necrosis of cells and increased hepatic plate gap were observed. The obtained results highlighted that toxic substances from slag may be deleterious to zebrafish.
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Affiliation(s)
- Xiaorui Wang
- 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 Kast Environmental Ecosystem Observation and Research Station, Ministry of Education, Guiyang, 550025, China.
| | - Rong Xie
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Kaizhi Yang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Hongyue Wu
- College of Resources and Environment, Soil and Water Conservation and Desertification Combating, Northwest A&F University, Yangling, 712100, China
| | - Tieyun Wang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
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Sun H, Li X, Wu Y. Effects of four woody plant species revegetation on habitat improvement and the spatial distribution of arsenic and antimony in zinc smelting slag. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1506-1518. [PMID: 34019774 DOI: 10.1080/15226514.2021.1915954] [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] [Indexed: 06/12/2023]
Abstract
Broussonetia papyrifera, Cryptomeria fortunei, Arundo donax, and Robinia pseudoacacia were planted on a zinc smelting slag site. The habitat conditions and spatial distribution of arsenic (As) and antimony (Sb) in slag were analyzed after seven years of restoration. The results showed that the pH, conductivity (EC), and moisture content of phytoremediated slag were lower than those of the control slag. The redox potential (Eh) and EC decreased with increasing slag depth. Phytostabilization significantly increased the contents of total nitrogen (TN), total phosphorus (TP), available nitrogen (AN), available phosphorus (AP), and dissolved organic carbon (DOC) in slag. TN, AN, AP, and DOC in slag showed obvious surface polymerization. Phytostabilization increased the content of calcite and gypsum in the slag. As and Sb concentrations were significantly lower than control slag, with an average decrease of 651-844 and 422-693 mg·kg -1, respectively. Residual As and Sb in phytoremediated slag was the most present form, the proportion of which was higher than that in the control slag. The proportions of calcium-bound and aluminum-bound As and Sb were lower. The contents of arsenic and antimony in plants had lower levels and followed the order of roots > leaves > stems. As and Sb showed a strong positive correlation with pH, EC, moisture content, and a negative correlation with TN, TP, AN, AP, and DOC. In summary, phytostabilization significantly improved slag site conditions and reduce As and Sb available concentrations. Novelty statement Co-contamination of As and Sb is common in mining areas because of similar chemical properties. There are only few reports on the effects of matrix modification and phytoremediation (without additional soil cover) on the soil physicochemical properties, the spatial distribution, and the bioavailability of As and Sb in zinc slag with an alkaline pH. The research determined that phytostabilization significantly improved slag site conditions and reduce As and Sb available concentrations. The results obtained can be used as necessary information for the large-scale ecological restoration or vegetation reconstruction of zinc smelting slag yards.
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Affiliation(s)
- Hang Sun
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, China
| | - Xinlong Li
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, China
| | - Yonggui Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, China
- Institute of Applied Ecology, Guizhou University, Guiyang, China
- Guizhou Kast Environmental Ecosystem Observation and Research Station, Ministry of Education, Guiyang, China
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Wu S, You F, Hall M, Huang L. Native plant Maireana brevifolia drives prokaryotic microbial community development in alkaline Fe ore tailings under semi-arid climatic conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:144019. [PMID: 33341617 DOI: 10.1016/j.scitotenv.2020.144019] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Native pioneer plants of high environmental tolerance may be exploited as early colonisers in alkaline Fe-ore tailings to drive the development of functional prokaryotic microbial communities, which is one of the critical pedogenic processes leading to in situ soil formation in the tailings. The present study deployed high throughput Illumina Miseq sequencing, to characterise the diversity and potential functionality of prokaryotic microbial communities in the aged Fe-ore tailings and topsoils colonised by native plant species Maireana brevifolia at an Fe ore mine in Western Australia, in comparison with those in the tailings/topsoils without plants. The composition of prokaryotic microbial communities differed between the aged tailings (AT) and topsoil sites (TS). Aged tailings (AT1-AT3) contained more bacteria tolerant of alkaline/saline conditions (e.g., Alkalilimnicola sp.) and those related to Fe biogeochemical cycling (e.g., Acidiferrobacter sp., Aciditerrimonas sp.). In comparison, the prokaryotic microbial communities in the topsoil (TS) contained abundant bacteria related to N cycling (e.g., Rhizobium sp., Frankia sp.). The presence of M. brevifolia plants significantly increased the diversity of prokaryotic microbial communities in tailings and topsoil, particularly favouring the development of bacteria related to N cycling and OM degradations (e.g., Mesorhizobium sp. Paracoccus sp., Oxalicibacterium horti, and Microbacterium sp.). The variation of microbial community were mainly explained by pH, amorphous Fe, and total N, which were regulated by M. brevifolia colonisation. The beneficial roles of pioneer plants M. brevifolia in the development of prokaryotic microbial community in the alkaline Fe ore tailings may be integrated as a key factor when designing and scaling up the process of eco-engineering Fe-ore tailings into soil under semi-arid climatic conditions.
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Affiliation(s)
- Songlin Wu
- Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Fang You
- Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Merinda Hall
- Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Longbin Huang
- Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia.
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Hottenstein JD, Neilson JW, Gil-Loaiza J, Root RA, White SA, Chorover J, Maier RM. Soil Microbiome Dynamics During Pyritic Mine Tailing Phytostabilization: Understanding Microbial Bioindicators of Soil Acidification. Front Microbiol 2019; 10:1211. [PMID: 31275251 PMCID: PMC6593306 DOI: 10.3389/fmicb.2019.01211] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/13/2019] [Indexed: 11/17/2022] Open
Abstract
Challenges to the reclamation of pyritic mine tailings arise from in situ acid generation that severely constrains the growth of natural revegetation. While acid mine drainage (AMD) microbial communities are well-studied under highly acidic conditions, fewer studies document the dynamics of microbial communities that generate acid from pyritic material under less acidic conditions that can allow establishment and support of plant growth. This research characterizes the taxonomic composition dynamics of microbial communities present during a 6-year compost-assisted phytostabilization field study in extremely acidic pyritic mine tailings. A complementary microcosm experiment was performed to identify successional community populations that enable the acidification process across a pH gradient. Taxonomic profiles of the microbial populations in both the field study and microcosms reveal shifts in microbial communities that play pivotal roles in facilitating acidification during the transition between moderately and highly acidic conditions. The potential co-occurrence of organoheterotrophic and lithoautotrophic energy metabolisms during acid generation suggests the importance of both groups in facilitating acidification. Taken together, this research suggests that key microbial populations associated with pH transitions could be used as bioindicators for either sustained future plant growth or for acid generation conditions that inhibit further plant growth.
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Affiliation(s)
- John D Hottenstein
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Julie W Neilson
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Juliana Gil-Loaiza
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Robert A Root
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Scott A White
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Jon Chorover
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
| | - Raina M Maier
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, United States
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Umlaufová M, Száková J, Najmanová J, Sysalová J, Tlustoš P. The soil-plant transfer of risk elements within the area of an abandoned gold mine in Libčice, Czech Republic. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:1267-1276. [PMID: 30596320 DOI: 10.1080/10934529.2018.1528041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/06/2018] [Indexed: 06/09/2023]
Abstract
Abandoned gold mines are often suggested as potential sources of environmental pollution. Thus, the soils within the area of a gold mine in Libčice, Czech Republic, were monitored. Elevated element contents were found of As, Cd, Cu, Hg, Pb, and Zn. The risk assessment codes (RACs) indicated high environmental risk from soil Cd, and moderate risk from Zn, whereas the risk of As, Cu, and Pb was low. It was supported by the analysis of 134 samples of aboveground biomass of plants, where the levels of As and Pb were below the detection limit. For Cd, the plant uptake reflected the high mobility of this element, where the bioaccumulation factors (BAFs) varied in range 0.032 (Fragaria vesca) and 1.97 (Circia arvensis). For 11% of samples the BAF values for Cd exceeded 1. For Hg, although the maximum BAF did not exceed 0.37 (Lotus corniculatus), the Hg contents in plants occasionally exceeded the threshold limits for Hg contents in raw feedstuffs. The investigated gold mine does not represent a direct environmental risk, but the fate of Cd and Hg in the soils and plants suggests the necessity of a deeper understanding of the penetration of these elements into the surrounding environment.
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Affiliation(s)
- Martina Umlaufová
- a Department of Agroenvironmental Chemistry and Plant Nutrition , Czech University of Life Sciences Prague , Prague , Czech Republic
| | - Jiřina Száková
- a Department of Agroenvironmental Chemistry and Plant Nutrition , Czech University of Life Sciences Prague , Prague , Czech Republic
| | - Jana Najmanová
- a Department of Agroenvironmental Chemistry and Plant Nutrition , Czech University of Life Sciences Prague , Prague , Czech Republic
| | - Jiřina Sysalová
- b AAS laboratory , University of Chemistry and Technology , Prague , Czech Republic
| | - Pavel Tlustoš
- a Department of Agroenvironmental Chemistry and Plant Nutrition , Czech University of Life Sciences Prague , Prague , Czech Republic
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Sun W, Ji B, Khoso SA, Tang H, Liu R, Wang L, Hu Y. An extensive review on restoration technologies for mining tailings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:33911-33925. [PMID: 30324370 DOI: 10.1007/s11356-018-3423-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Development of mineral resources and the increasing mining waste emissions have created a series of environmental and health-related issues. Nowadays, the ecological restoration of mining tailings has become one of the urgent tasks for mine workers and environmental engineers all over the world. Aim of the present paper is to highlight the previous restoration techniques and the challenges encountered during the restoration of mine tailings. As it is a common practice that, before restoring of tailings, the site should be evaluated carefully. Studies showed that the mine tailings' adverse properties, including excessive heavy metal concentration, acidification, improper pH value, salinization and alkalization, poor physical structure and inadequate nutrition, etc., are the major challenges of their restoration. Generally, four restoration technologies, including physical, chemical, phytoremediation, and bioremediation, are used to restore the mining tailings. The working mechanism, advantages, and disadvantages of these techniques are described in detail. In addition, selection of the suitable restoration techniques can largely be carried out by considering both the economic factors and time required. Furthermore, the ecosystem restoration is perceived to be a more promising technology for mine tailings. Therefore, this extensive review can act as a valuable reference for the researchers involved in mine tailing restoration.
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Affiliation(s)
- Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
| | - Bin Ji
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
| | - Sultan Ahmed Khoso
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
| | - Honghu Tang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
| | - Runqing Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
| | - Li Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China.
| | - Yuehua Hu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China
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11
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Li Y, Wu Z, Dong X, Wang D, Qiu H, Jia Z, Sun Q. Glucose-induced changes in the bacterial communities of mine tailings at different acidification stages. Can J Microbiol 2018; 65:201-213. [PMID: 30452287 DOI: 10.1139/cjm-2017-0782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ecological restoration technologies applied to tailings can influence the associated bacterial communities. However, it is unknown if the shifts in these bacterial communities are caused by increased organic carbon. Glucose-induced respiration and high-throughput sequencing were used to assess the microbial activity and bacterial communities, respectively. Glucose addition increased the microbial activity, and glucose + ammonium nitrate addition resulted in slightly higher CO2 emission than did glucose addition alone, suggesting that carbon and nitrogen limited microbial community growth. In neutral pH tailings, the bacterial taxa that increased by glucose addition were assigned to the phyla Proteobacteria, Acidobacteria, Actinobacteria, Bacteroidetes, Firmicutes, and Planctomycetes. However, the bacterial taxa that increased by glucose addition in acidic tailings only belonged to the phylum Actinobacteria (maximum increase of 43.78%). In addition, the abundances of the total nitrogen-fixing genera and of the genus Arthrobacter (representing approximately 97.89% of the total nitrogen-fixing genera) increased by glucose addition in acidic tailings (maximum increase of 46.98%). In contrast, the relative abundances of the total iron- and (or) sulfur-oxidizing bacteria decreased (maximum decrease of 10.41%) in response to the addition of glucose. These findings indicate that the addition of organic carbon is beneficial to the development of bacterial communities in mine tailings.
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Affiliation(s)
- Yang Li
- a School of Resources and Environmental Engineering, Anhui University, Hefei, Anhui Province, P.R. China.,b State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu Province, P.R. China
| | - Zhaojun Wu
- a School of Resources and Environmental Engineering, Anhui University, Hefei, Anhui Province, P.R. China
| | - Xingchen Dong
- c College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu Province, P.R. China
| | - Dongmei Wang
- b State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu Province, P.R. China
| | - Huizhen Qiu
- c College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu Province, P.R. China
| | - Zhongjun Jia
- b State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu Province, P.R. China
| | - Qingye Sun
- a School of Resources and Environmental Engineering, Anhui University, Hefei, Anhui Province, P.R. China
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Valentín-Vargas A, Neilson JW, Root RA, Chorover J, Maier RM. Treatment impacts on temporal microbial community dynamics during phytostabilization of acid-generating mine tailings in semiarid regions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 618:357-368. [PMID: 29132003 PMCID: PMC5773348 DOI: 10.1016/j.scitotenv.2017.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 09/28/2017] [Accepted: 11/01/2017] [Indexed: 05/27/2023]
Abstract
Direct revegetation, or phytostabilization, is a containment strategy for contaminant metals associated with mine tailings in semiarid regions. The weathering of sulfide ore-derived tailings frequently drives acidification that inhibits plant establishment resulting in materials prone to wind and water dispersal. The specific objective of this study was to associate pyritic mine waste acidification, characterized through pore-water chemistry analysis, with dynamic changes in microbial community diversity and phylogenetic composition, and to evaluate the influence of different treatment strategies on the control of acidification dynamics. Samples were collected from a highly instrumented one-year mesocosm study that included the following treatments: 1) unamended tailings control; 2) tailings amended with 15% compost; and 3) the 15% compost-amended tailings planted with Atriplex lentiformis. Tailings samples were collected at 0, 3, 6 and 12months and pore water chemistry was monitored as an indicator of acidification and weathering processes. Results confirmed that the acidification process for pyritic mine tailings is associated with a temporal progression of bacterial and archaeal phylotypes from pH sensitive Thiobacillus and Thiomonas to communities dominated by Leptospirillum and Ferroplasma. Pore-water chemistry indicated that weathering rates were highest when Leptospirillum was most abundant. The planted treatment was most successful in disrupting the successional evolution of the Fe/S-oxidizing community. Plant establishment stimulated growth of plant-growth-promoting heterotrophic phylotypes and controlled the proliferation of lithoautotrophic Fe/S-oxidizers. The results suggest the potential for eco-engineering a microbial inoculum to stimulate plant establishment and inhibit proliferation of the most efficient Fe/S-oxidizing phylotypes.
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Affiliation(s)
- Alexis Valentín-Vargas
- Department of Soil, Water and Environmental Science, 429 Shantz Bldg. #38, 1177 E. Fourth Street, University of Arizona, Tucson, AZ 85721-0038, USA
| | - Julia W Neilson
- Department of Soil, Water and Environmental Science, 429 Shantz Bldg. #38, 1177 E. Fourth Street, University of Arizona, Tucson, AZ 85721-0038, USA.
| | - Robert A Root
- Department of Soil, Water and Environmental Science, 429 Shantz Bldg. #38, 1177 E. Fourth Street, University of Arizona, Tucson, AZ 85721-0038, USA
| | - Jon Chorover
- Department of Soil, Water and Environmental Science, 429 Shantz Bldg. #38, 1177 E. Fourth Street, University of Arizona, Tucson, AZ 85721-0038, USA
| | - Raina M Maier
- Department of Soil, Water and Environmental Science, 429 Shantz Bldg. #38, 1177 E. Fourth Street, University of Arizona, Tucson, AZ 85721-0038, USA
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Soil-covered strategy for ecological restoration alters the bacterial community structure and predictive energy metabolic functions in mine tailings profiles. Appl Microbiol Biotechnol 2016; 101:2549-2561. [DOI: 10.1007/s00253-016-7969-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/17/2016] [Accepted: 10/25/2016] [Indexed: 11/26/2022]
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