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Polasko AL, Koutnik VS, Tsai K, Alkidim S, Borthakur A, Mohanty S, Mahendra S. Evaluation of historical data on persistent organic pollutants and heavy metals in Lake Baikal: Implications for accumulation in marine environments. ENVIRONMENTAL RESEARCH 2024; 252:119035. [PMID: 38685302 DOI: 10.1016/j.envres.2024.119035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Lake Baikal, the largest freshwater lake by volume, provides drinking water and aquatic food supplies to over 2.5 million people. However, the lake has been contaminated with recalcitrant pollutants released from surrounding industrial complexes, agriculture, and natural lands, thereby increasing the risk of their bioaccumulation in fish and seals. Yet, a collective analysis of historical concentration data and their bioaccumulation potential as well as what factors drive their accumulation in fish or seals remains largely unknown. We analyzed concentration data from 42 studies collected between 1985 and 2019 in water, sediment, fish, and seals of Lake Baikal. Heavy metals had the highest concentrations in water and biota followed closely by polycyclic aromatic hydrocarbons (PAHs) and organochlorines. Among organochlorines, polychlorinated biphenyls (PCBs) showed the highest levels in water, surpassing hexachlorocyclohexane (HCH) concentrations, particularly after normalizing to solubility. While naphthalene and phenanthrene exhibited the highest average concentrations among polycyclic aromatic hydrocarbons (PAHs), their relative concentrations significantly decreased upon solubility normalization. The analysis confirmed that bioconcentration and biomagnification of organochlorine pesticides, PCBs, PAHs, and heavy metals depend primarily on source strength to drive their concentration in water and secondarily on their chemical characteristics as evidenced by the higher concentrations of low-solubility PCBs and high molecular weight PAHs in water and sediment. The differential biomagnification patterns of Cu, Hg, and Zn compared to Pb are attributed to their distinct sources and bioavailability, with Cu, Hg, and Zn showing more pronounced biomagnification due to prolonged industrial release, in contrast to the declining Pb levels. Dibenzo-p-dioxins were detected in sediment and seals, but not in water or fish compartments. These data highlight the importance of addressing even low concentrations of organic and inorganic pollutants and the need for more consistent and frequent monitoring to ensure the future usability of this and other similar essential natural resources.
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Affiliation(s)
| | | | | | - Sarah Alkidim
- Brown University, Department of Physics, Providence, RI, USA
| | - Annesh Borthakur
- St. Louis University, Department of Civil, Computer, and Electrical Engineering, 1 N. Grand Blvd, St. Lous, MO, USA
| | - Sanjay Mohanty
- University of California at Los Angeles (UCLA), Department of Civil and Environmental Engineering, Los Angeles, CA, USA
| | - Shaily Mahendra
- University of California at Los Angeles (UCLA), Department of Civil and Environmental Engineering, Los Angeles, CA, USA
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2
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Ghazali MA, Umor MR, Kayode JS, Rafek AG, Arifin MH. A novel subsurface slopes hazardous mapping with engineering geologic and geophysical characterizations. Heliyon 2024; 10:e31308. [PMID: 38826710 PMCID: PMC11141351 DOI: 10.1016/j.heliyon.2024.e31308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 06/04/2024] Open
Abstract
Engineering geological characterizations, and geophysical mapping of subsurface structures to monitor some susceptible infrastructural facilities to hazardous slopes for effectiveness, safety to lives and properties, in addition to policy management for sustainable development. Novel integrated engineering geology, geoelectrical resistivity (ER), and borehole data analysis, to characterize subsurface for slope instability, determining critical zones prone to hazardous slopes in Peninsular Malaysian (PM), east coast areas was focused on. Engineering Laboratory soil investigations using disturbed and undisturbed samples collected to obtain firsthand information on the subsurface soils, and rocks physical properties, integrated with ER data to obtain subsurface geoelectric profiles. Regions delineated as loose and marked as water saturated residual soils prone to slopes corresponds to ER values < 100 Ω-m. ER values between 100 ≥ 500 Ω-m, were delineated as residual soils zones devoid of water contents. Subsurface geoelectric profiles related to hard materials were delineated as weathered and fractured bedrock zones corresponding to ER values between 500 ≥ 2000 Ω-m. Granitic bedrock units delineated as subsurface lithological zones with ER values > 4000 Ω-m. Slope Mass Ratings (SMR), was carried out to construct suitability, and slope assessment system (SAS) model ratings map for the four classes obtained.
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Affiliation(s)
- Mohamad Anuri Ghazali
- Program Geologi, Department of Earth Science and Natural Resources, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
- Geo Mag Engineering. No. 31B, Tingkat 2, Jalan Pelabur B 23/B Seksyen 23, 40300, Shah Alam, Selangor, Malaysia
| | - Mohd Rozi Umor
- Program Geologi, Department of Earth Science and Natural Resources, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - John Stephen Kayode
- Department of Physics, Nigerian Army University, Biu, No 1, Gombe road, PMB 1500, Biu, Borno State, Nigeria
| | - Abd Ghani Rafek
- Geo Mag Engineering. No. 31B, Tingkat 2, Jalan Pelabur B 23/B Seksyen 23, 40300, Shah Alam, Selangor, Malaysia
| | - Mohd Hariri Arifin
- Program Geologi, Department of Earth Science and Natural Resources, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
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3
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Shams A, Fischer A, Bodnar A, Kliegman M. Perspectives on Genetically Engineered Microorganisms and Their Regulation in the United States. ACS Synth Biol 2024; 13:1412-1423. [PMID: 38669097 PMCID: PMC11106772 DOI: 10.1021/acssynbio.4c00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/17/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
Genetically engineered microorganisms (GEMs) represent a new paradigm in our ability to address the needs of a growing, changing world. GEMs are being used in agriculture, food production and additives, manufacturing, commodity and noncommodity products, environmental remediation, etc., with even more applications in the pipeline. Along with modern advances in genome-manipulating technologies, new manufacturing processes, markets, and attitudes are driving a boom in more products that contain or are derived from GEMs. Consequentially, researchers and developers are poised to interact with biotechnology regulatory policies that have been in effect for decades, but which are out of pace with rapidly changing scientific advances and knowledge. In the United States, biotechnology is regulated by multiple agencies with overlapping responsibilities. This poses a challenge for both developers and regulators to simultaneously allow new innovation and products into the market while also ensuring their safety and efficacy for the public and environment. This article attempts to highlight the various factors that interact between regulatory policy and development of GEMs in the United States, with perspectives from both regulators and developers. We present insights from a 2022 workshop hosted at the University of California, Berkeley that convened regulators from U.S. regulatory agencies and industry developers of various GEMs and GEM-derived products. We highlight several new biotechnologies and applications that are driving innovation in this space, and how regulatory agencies evaluate and assess these products according to current policies. Additionally, we describe recent updates to regulations that incorporate new technology and knowledge and how they can adapt further to effectively continue regulating for the future.
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Affiliation(s)
- Arik Shams
- Kavli
Center for Ethics, Science, and the Public, University of California—Berkeley, Berkeley, California 94720, United States
| | - Alexandria Fischer
- United
States Department of Agriculture, Washington, D.C. 20250, United States
| | - Anastasia Bodnar
- United
States Department of Agriculture, Washington, D.C. 20250, United States
| | - Melinda Kliegman
- Innovative
Genomics Institute, University of California—Berkeley, Berkeley, California 94720, United States
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4
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Dong Y, Hua Z, Zeng Y, Yue T, Tang H, Sun W. High efficiency regulating sedimentation and rheological properties of copper tailings using polycarboxylate superplasticizers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168637. [PMID: 37984662 DOI: 10.1016/j.scitotenv.2023.168637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
The recovery of low grade and fine particle copper ore usually requires sufficient dissociation, which reduces the particle size to the submicron level, presenting new challenges in subsequent copper tailings disposal. Flocculants can improve tailings sedimentation efficiency, but they also change the rheological properties of the slurry, resulting in low efficiency and high energy consumption during long-distances pumping. To address this issue, this study introduced polycarboxylate ether (PCE) superplasticizers as auxiliary additives for tailings treatment to improve fine particles sedimentation efficiency while enhancing slurry flowability. The results showed that compared to non-ionic polyacrylamide (NPAM) treated slurries, the synergistic effects of PCE and NPAM increased the initial sedimentation rate (ISR) by up to 3.4 times while decreasing the yield stress by up to 8 times and the thixotropic loop area by 10.5 times. DLVO theory calculations showed that PCE mainly affects particle interactions through a significant decrease in electrostatic repulsion. By in-situ monitoring with a focused beam reflectance measurement (FBRM) device, it was demonstrated that the synergistic effect of PCE improved the flocculation ability, strength, and regrowth ability of flocs. Furthermore, strong correlations were found between floc properties and fluid rheological properties. Overall, this study indicated that PCE additive was a promising reagent for fine particles slurry rapid settling and flowability enhancement, providing a new approach for copper tailings disposal.
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Affiliation(s)
- Yingdi Dong
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China
| | - Zhongbao Hua
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China
| | - Yong Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China
| | - Tong Yue
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China
| | - Honghu Tang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China.
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Carbon Emission Reduction in Development and Utilization of Metal Resources, Ministry of Education, Central South University, Changsha 410083, China
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5
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Oliveira LA, Santos JLO, Teixeira LSG. Determination of thallium in water samples via solid sampling HR-CS GF AAS after preconcentration on chromatographic paper. Talanta 2024; 266:124945. [PMID: 37478764 DOI: 10.1016/j.talanta.2023.124945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/07/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023]
Abstract
A method for determining thallium in water samples via solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry (SS HR-CS GF AAS) after preconcentration using chromatographic filter paper as a solid support was proposed. The effects of pH, stirring time, and sample volume in the analyte preconcentration step were studied. The presence of potential interferences in the sample and the type of masking agent were also examined. In the proposed procedure, the sample was placed in contact with the solid phase in a polypropylene tube, and after stirring for 3 min, thallium determination was performed via HR-CS GF AAS directly on chromatographic filter paper. A preconcentration factor of 55, a precision of 9.4% (n = 10; 10 μg L-1), a limit of detection of 0.018 μg L-1, and a limit of quantification of 0.059 μg L-1 were achieved. Analyte addition and recovery tests were performed, and the results ranged from 91% to 110%. The accuracy of the method was evaluated by analyzing a water reference material. The procedure was used to determine thallium in water samples collected in Barreiras, Bahia, Brazil. The results were compared with those obtained using inductively coupled plasma‒mass spectrometry (ICP‒MS). Thallium concentrations in the analyzed samples ranged from <0.059 to 0.80 μg L-1.
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Affiliation(s)
- Luana A Oliveira
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil
| | - Jorge L O Santos
- Universidade Federal Do Oeste da Bahia, Centro Multidisciplinar de Bom Jesus da Lapa, 47600-000, Bom Jesus da Lapa, Bahia, Brazil
| | - Leonardo S G Teixeira
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil; INCT de Energia e Ambiente, Universidade Federal da Bahia, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil.
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6
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Cen L, Cheng H, Liu Q, Wang S, Wang X. Arsenic release from arsenopyrite weathering in acid mine drainage: Kinetics, transformation, and effect of biochar. ENVIRONMENT INTERNATIONAL 2022; 170:107558. [PMID: 36202015 DOI: 10.1016/j.envint.2022.107558] [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: 08/22/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Arsenopyrite (FeAsS) oxidative dissolution provides an important source for the occurrence of high arsenic in acid mine drainage (AMD). Biochar is a potent material that can dramatically sequestrate an array of heavy metals in water. However, little is known about the role of biochar on the fate of As from arsenopyrite in AMD. This study investigates the effects of biochar concentrations, AMD acidities, and temperatures on the release of As from arsenopyrite in a simulated AMD over a range of environmentally relevant conditions. Results show that biochar inhibits As release and further acidification without changing the arsenopyrite weathering mechanism. Arsenopyrite is first oxidized to Fe(II), As(III) and S0 and ultimately oxidized to Fe(III), As(V) and SO42-, respectively. Higher concentration, temperature or higher acidity promotes the arsenic release rate. Electrochemical studies showed that biochar inhibited As release and acidification for reduced the charge transfer resistance at the double layer and film resistance at the passivation layer, which was mainly attributed to Fe(III) ions in AMD being adsorbed, oxidized, and As complexed to biochar-Fe-As(V). This study reveals the release mechanism of As from arsenopyrite weathering in AMD and suggests the applicability of biochar in mitigating arsenic pollution and further acidification in sulfide mineral mine drainage.
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Affiliation(s)
- Ling Cen
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Hongguang Cheng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Qingyou Liu
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.
| | - Shuai Wang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Xi Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100039, China
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Abstract
Driven by rapidly increasing demand for mineral resources, both industrial mining and artisanal mining are intensifying across the tropical biome. A number of regional studies have analyzed mining-induced deforestation, but scope and patterns across all tropical countries have not yet been investigated. Focusing on industrial mining, we use geospatial data to quantify direct forest loss within mining sites in 26 countries. We also perform a statistical assessment to test whether industrial mining drives indirect deforestation in the mine surroundings. We show that direct deforestation concentrates only in a few countries, while industrial mining causes indirect deforestation in two-thirds of tropical countries. In order to preserve tropical forests, direct and indirect deforestation impacts of mining projects should be fully considered. Growing demand for minerals continues to drive deforestation worldwide. Tropical forests are particularly vulnerable to the environmental impacts of mining and mineral processing. Many local- to regional-scale studies document extensive, long-lasting impacts of mining on biodiversity and ecosystem services. However, the full scope of deforestation induced by industrial mining across the tropics is yet unknown. Here, we present a biome-wide assessment to show where industrial mine expansion has caused the most deforestation from 2000 to 2019. We find that 3,264 km2 of forest was directly lost due to industrial mining, with 80% occurring in only four countries: Indonesia, Brazil, Ghana, and Suriname. Additionally, controlling for other nonmining determinants of deforestation, we find that mining caused indirect forest loss in two-thirds of the investigated countries. Our results illustrate significant yet unevenly distributed and often unmanaged impacts on these biodiverse ecosystems. Impact assessments and mitigation plans of industrial mining activities must address direct and indirect impacts to support conservation of the world’s tropical forests.
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8
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Chen J, Liu Y, Diep P, Mahadevan R. Genetic engineering of extremely acidophilic Acidithiobacillus species for biomining: Progress and perspectives. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129456. [PMID: 35777147 DOI: 10.1016/j.jhazmat.2022.129456] [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: 04/12/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
With global demands for mineral resources increasing and ore grades decreasing, microorganisms have been increasingly deployed in biomining applications to recover valuable metals particularly from normally considered waste, such as low-grade ores and used consumer electronics. Acidithiobacillus are a genus of chemolithoautotrophic extreme acidophiles that are commonly found in mining process waters and acid mine drainage, which have been reported in several studies to aid in metal recovery from bioremediation of metal-contaminated sites. Compared to conventional mineral processing technologies, biomining is often cited as a more sustainable and environmentally friendly process, but long leaching cycles and low extraction efficiency are main disadvantages that have hampered its industrial applications. Genetic engineering is a powerful technology that can be used to enhance the performance of microorganisms, such as Acidithiobacillus species. In this review, we compile existing data on Acidithiobacillus species' physiological traits and genomic characteristics, progresses in developing genetic tools to engineer them: plasmids, shutter vectors, transformation methods, selection markers, promoters and reporter systems developed, and genome editing techniques. We further propose genetic engineering strategies for enhancing biomining efficiency of Acidithiobacillus species and provide our perspectives on their future applications.
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Affiliation(s)
- Jinjin Chen
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Canada
| | - Yilan Liu
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Canada
| | - Patrick Diep
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Canada
| | - Radhakrishnan Mahadevan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Canada; Institute of Biomedical Engineering, University of Toronto, Toronto, Canada.
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9
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Integrated Underground Mining Hazard Assessment, Management, Environmental Monitoring, and Policy Control in Pakistan. SUSTAINABILITY 2021. [DOI: 10.3390/su132413505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study focused on the significance of underground mining in Pakistan, resulting in the employment of operational staff to undertake the primary tasks of this sector, such as explosions, rock excavation, mineral research, mining-supporting walls, and mine compactivity. Occupational accidents and illnesses arise due to the activities mentioned above because the working circumstances are not optimal. The decision-matrix risk-assessment (DMRA) approach, in which incidents are evaluated according to their severity and probability, was also utilized to improve working conditions, including public health and environment protection. To assess the risks and to select which actions should continue in the same manner, we highlighted hazards that need control measures and, as the last option, those that must be stopped. By taking into account the results of the study, corrective actions were proposed that can help avoid the occurrence of the presented accidents through applying occupational safety and health regulations issued by the Department of Minerals and Mines, which is a governmental entity responsible for both the issuing and the compliance to those regulations. The current study also outlined the requirements that must be reported under mining-related laws.
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Ma L, Huang S, Wu P, Xiong J, Wang H, Liao H, Liu X. The interaction of acidophiles driving community functional responses to the re-inoculated chalcopyrite bioleaching process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149186. [PMID: 34375243 DOI: 10.1016/j.scitotenv.2021.149186] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Re-inoculation was an effective way to improve bioleaching efficiency by enhancing the synergetic effects of biogenic Fe3+ coupling with S0 oxidation. However, the complex microbial interactions after re-inoculation have received far less attention, which was crucial to the bioleaching performances. Herein, the enriched ferrous oxidizers (FeO) or sulfur oxidizers (SO) were inoculated to chalcopyrite microcosm, then they were crossly re-inoculated again to characterize the interspecific interaction patterns. The results showed that the dominant species in Fe groups were Acidithiobacillus ferrooxidans, while A. thiooxidans predominated in S groups. Introducing FeO resulted in a great disturbance by shifting the community diversity and evenness significantly (p < 0.05). In comparison, the communities intensified by SO maintained the original composition and structures. Microbial networks were constructed positively and modularly. The networks intensified by FeO were less connected and complex with less nodes and edges, but showed faster responses to the re-inoculation disturbance reflected by shorter average path length. Interestingly, the genus Leptospirillum were identified as keystones in S groups, playing critical roles in iron-oxidizing with lots of sulfur oxidizers. The introduced sulfur oxidizers enhanced microbial cooperation, formed robust community with strong bio-dissolution capability, and harbored the highest bioleaching efficiency. These findings improved our understanding about the acidophiles interactions, which drive community functional responses to the re-inoculated bioleaching process.
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Affiliation(s)
- Liyuan Ma
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China.
| | - Shanshan Huang
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China; School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Peiyi Wu
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Junming Xiong
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Hongmei Wang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Hehuan Liao
- Springboard, San Francisco, CA 94063, United States
| | - Xueduan Liu
- Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China; School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
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11
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Rebello S, Nathan VK, Sindhu R, Binod P, Awasthi MK, Pandey A. Bioengineered Microbes for Soil Health Restoration - Present Status and Future. Bioengineered 2021; 12:12839-12853. [PMID: 34775906 PMCID: PMC8810056 DOI: 10.1080/21655979.2021.2004645] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
According to the United Nations Environment Programme (UNEP), soil health is declining over the decades and it has an adverse impact on human health and food security. Hence, soil health restoration is a need of the hour. It is known that microorganisms play a vital role in remediation of soil pollutants like heavy metals, pesticides, hydrocarbons, etc. However, the indigenous microbes have a limited capacity to degrade these pollutants and it will be a slow process. Genetically modified organisms (GMOs) can catalyze the degradation process as their altered metabolic pathways lead to hypersecretions of various biomolecules that favor the bioremediation process. This review provides an overview on the application of bioengineered microorganisms for the restoration of soil health by degradation of various pollutants. It also sheds light on the challenges of using GMOs in environmental application as their introduction may affect the normal microbial community in soil. Since soil health also refers to the potential of native organisms to survive, the possible changes in the native microbial community with the introduction of GMOs are also discussed. Finally, the future prospects of using bioengineered microorganisms in environmental engineering applications to make the soil fertile and healthy have been deciphered. With the alarming rates of soil health loss, the treatment of soil and soil health restoration need to be fastened to a greater pace and the combinatorial efforts unifying GMOs, plant growth-promoting rhizobacteria, and other soil amendments will provide an effective solution to soil heath restoration ten years ahead.
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Affiliation(s)
| | - Vinod Kumar Nathan
- School of Chemical and Biotechnology, Sastra University, Thanjavur, India
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum - 695 019, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum - 695 019, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, North West A & F University, Yangling, Shaanxi - 712 100, China
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR- Indian Institute for Toxicology Research, Lucknow - 226 001, India.,Centre for Energy and Environmental Sustainability, Lucknow-226 029, Uttar Pradesh, India
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12
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Frachini E, S Reis Ferreira C, Kroetz BL, Urbano A, Abrão T, Santos MJ. Modeling the kinetics of potentially toxic elements desorption in sediment affected by a dam breakdown disaster in Doce River - Brazil. CHEMOSPHERE 2021; 283:131157. [PMID: 34182633 DOI: 10.1016/j.chemosphere.2021.131157] [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: 02/19/2021] [Revised: 04/28/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
On November 5th, 2015, a mining dam spilled a huge plume of mining waste in the Doce River. Even though many studies have reported the environmental impact from the Doce River's tragedy, the transport of potentially toxic elements (PTE) by kinetic modeling to determine how long the basin takes to achieve the natural balance has not been described. Therefore, samples of sludge, sediment, and water were collected along the Doce River basin, to assess the elements' total leaching by kinetic modeling. The elements Fe, Al, Mn, Cu, Ag, Pb, Cd, and As were evaluated. An innovative mobilization factor (FS/D) indicated that Mn2+, Ag+, and Cd2+ can be mobilized about 80, 89, and 57 times more than its initial concentration. Besides, in low pH, the Al and Pb ions can be mobilized. The desorption kinetics showed a lower rate constant (k) and higher initial desorption constant (h) for Mn2+ than Cd2+ and Ag+, suggesting both high- and low-affinity interaction sites for Mn2+. The exponential decay demonstrated that metals can leach for months or years. Thus, the long-lasting release of metals from mining tailing waste in concentrations that endanger the ecosystem and human health makes clear the need for long-term monitoring.
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Affiliation(s)
- Emilli Frachini
- Chemistry Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | | | | | - Alexandre Urbano
- Physics Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Taufik Abrão
- Electrical Engineering Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Maria Josefa Santos
- Chemistry Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil.
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Liao R, Yang B, Huang X, Hong M, Yu S, Liu S, Wang J, Qiu G. Combined effect of silver ion and pyrite on AMD formation generated by chalcopyrite bio-dissolution. CHEMOSPHERE 2021; 279:130516. [PMID: 33878694 DOI: 10.1016/j.chemosphere.2021.130516] [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: 12/10/2020] [Revised: 03/17/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Chalcopyrite is a crucial contributor causing acid mine drainage (AMD). Silver and pyrite are commonly co-existed with chalcopyrite, and can significantly affect the copper release from chalcopyrite bio-dissolution process. However, the combined effect of them on chalcopyrite bio-dissolution has not been illustrated up to now. To fill this knowledge gap, the combined effect of silver and pyrite on chalcopyrite dissolution with Acidithiobacillus ferrooxidans was investigated in this study. The copper extraction reached the maximum value (62.3 ± 0.1%) with the presence of silver and pyrite, which was 43.8 ± 0.1% higher than the control group (without addition). This suggested more copper ions and acids were released under this circumstance. According to bio-dissolution results, SEM, XRD and XPS analyses, the promotion effect of silver and pyrite on chalcopyrite bio-dissolution was mainly attributed to the increase of ferric ions in solution and the reduction of passivation layer (Sn2-/S0) on chalcopyrite surface. The investigation into the bio-dissolution of chalcopyrite is important for controlling the generation of copper ions and acids. Silver or pyrite bearing chalcopyrite should be carefully treated to avoid the pollution of heavy metal copper and acid in the mining environment.
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Affiliation(s)
- Rui Liao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Baojun Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Xiaotao Huang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Maoxing Hong
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Shichao Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Shitong Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
| | - Jun Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China.
| | - Guanzhou Qiu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China
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Arifin MH, Kayode JS, Ismail MKI, Abdullah AM, Embrandiri A, Nazer NSM, Azmi A. Environmental hazard assessment of industrial and municipal waste materials with the applications of RES2-D method and 3-D Oasis Montaj modeling: A case study at Kepong, Kuala Lumpur, Peninsula Malaysia. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124282. [PMID: 33199149 DOI: 10.1016/j.jhazmat.2020.124282] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 05/07/2023]
Abstract
Environmental hazards, industrial, and municipal wastes geochemical and geophysical assessments were carried out at an industrial waste disposal (IWD) site at Bukit Kepong, Kuala Lumpur, Malaysia. RES2-D geophysical method was applied, capable of identification and quantification of the industrial wastes; buried hazardous materials (BHM) and their effects on the subsurface stratum, from the moderately saturated zones, to fully saturated zones housing the aquifer units underneath the water table. Six RES2-D survey profiles were respectively acquired along E-W, and N-S directions. The perpendicular arrangement of the RES2-D survey lines, was tenaciously designed to make possible, the industrial waste materials (IWM)and municipal solid waste (MSW) quantification, with sufficient length of survey lines set at 200 m, and electrode spacing of 5 m, to cover as much details segments of the IWM and MSW as possible. The six RES2-D inversion results, helped in the subsurface stratum classification into three layers, namely; soft layers, which encompasses the waste materials, with varied resistivity values i.e., 0-100 Ω-m, at 10-15 m depths. The consolidated layers produced varied resistivity values i.e., 101-400 Ω-m, at 15-20 m depths. The bedrock has the highest resistivity values i.e., 401-2000 Ω-m, at depths > 20 m. The estimated volume of the waste materials was 312,000 m 3, using 3-D Oasis Montaj modeling via rectangular prism model generated from the inverted RES2-D. Results from the geochemical analysis helped in the validation of the site as a potential contaminated zone with severe health effects.
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Affiliation(s)
- Mohd Hariri Arifin
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - John Stephen Kayode
- Universiti Teknologi PETRONAS, Institute of Hydrocarbon Recovery, Department of Research and Innovations. Shale Gas Research Group, Persiaran UTP, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.
| | | | - Abdul Manan Abdullah
- Geo Technology Resources SDN BHD, 31-1, Jalan Mawar 5B, Taman Mawar, 43900 Sepang, Selangor, Malaysia
| | - Asha Embrandiri
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, P.O. Box 1145, Dessie, Amhara, Ethiopia
| | - Nor Shahidah Mohd Nazer
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Azrin Azmi
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
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Arifin MH, Kayode JS, Ismail MKI, Abdullah AM, Embrandiri A, Nazer NSM, Azmi A. A novel method for the quantification of industrial and municipal waste materials for environmental hazard assessment. MethodsX 2020; 8:101182. [PMID: 33365262 PMCID: PMC7749425 DOI: 10.1016/j.mex.2020.101182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/09/2020] [Indexed: 11/25/2022] Open
Abstract
Development of a novel method to assess environmnetal hazards of industrial, and municipal wastes. Application of the inverted RES2-D data using the Oasis Montaj to generate a rectangular prism model. Using the rectangular prism model developed to estimate the volume of IWM and MSW materials. Quantification of the leachate contaminant plumes flow from IWM and MSW for remediation.
A novel methodological approach was developed to quantified the volume of industrial waste desposal (IWD) site, combined with municipal waste materials (MWM), through the integration of a non-invasive, fast, and less expenssive RES2-D Electrical Resistivity Technique (ERT), using Wenner-Schlumberger electrode array geophysical method with Oasis Montaj software. Underground water bearing structures, and the eco-system are being contaminated through seepage of the plumes emanating from the mixtures of the industrial waste materials (IWM), made of moist cemented soil with municipal solid wastes (MSW) dumped at the site. The distribution of the contiminant hazardous plumes emanating from the waste materials' mixtures within the subsurface structural lithological layers was clearly map and delineated within the near-surface structures, using the triplicate technique to collect samples of the soil with the waste mixtures, and the water analysis for the presence of dissolved ions. The deployed method helped to monitor the seepage of the contaminant leachate plumes to the groundwater aquifer units via the ground surface, through the subsurface stratum lithological layers, and hence, estimation of the waste materials' volume was possibly approximated to be 312,000 m3. In summary, the novel method adopted are as presented below:The novel method is transferable, reproduce-able, and most importantly, it is unambiguous technique for the quantification of environmental, industrial and municipal waste materials. It helps to map the distribution of the plumes emanating from the waste materials' mixtures within the subsurface structural lithological layers that was clearly delineated within the near-surface structures underlain the study site. The procedure helped in the monitoring of leachate contaminants plumes seepages into the surface water bodies and the groundwater aquifer units, via the ground surface, through to the porous subsurface stratum lithological layers.
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Affiliation(s)
- Mohd Hariri Arifin
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - John Stephen Kayode
- Universiti Teknologi PETRONAS, Institute of Hydrocarbon Recovery, Department of Research and Innovations. Shale Gas Research Group, Persiaran UTP, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | | | - Abdul Manan Abdullah
- Geo Technology Resources SDN BHD. 31-1, Jalan Mawar 5B, Taman Mawar, 43900 Sepang, Selangor
| | - Asha Embrandiri
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University. Dessie P.O. Box 1145, Amhara
| | - Nor Shahidah Mohd Nazer
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Azrin Azmi
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
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Arifin MH, Kayode JS, Ismail KI, Abdullah M, Embrandiri A, Nazer SM, Azmi A. Data for the industrial and municipal environmental wastes hazard contaminants assessment with integration of RES2D techniques and Oasis Montaj software. Data Brief 2020; 33:106595. [PMID: 33318980 PMCID: PMC7726653 DOI: 10.1016/j.dib.2020.106595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/13/2020] [Accepted: 11/23/2020] [Indexed: 12/04/2022] Open
Abstract
Industrial, and municipal wastes are part of the main sources of environmental hazards as well as groundwater and surface water pollutions. If not well composed, treated, and safely disposed, it could permeate through the subsurface lithologies by reaching down to the underground water aquifers, particularly in zones of unprotected aquifer units. Pollutants, most especially the landfills leachates that encompassed organic contaminants, ammonia, nitrates, total nitrogen, suspended solids, heavy metals and soluble inorganic salts, i.e., soluble nitrogen, sulphur compound, sulphate and chlorides, could posed undesirable environmental impacts due to inappropriate disposals that may give rise to gaseous fumes and leachate formations. An electrical resistivity geophysical technique utilizing the RES2D no-invasive, cost-effective and rapid method of data collection was integrated with the 3D Oasis Montaj software to approximate the volume of the generated rectangular prism model of the contaminants delineated from mixtures of the industrial, and municipal wastes plumes to be 312,000 m 3.
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Affiliation(s)
- Mohd Hariri Arifin
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - John Stephen Kayode
- Department of Research and Innovations, Shale Gas Research Group, Universiti Teknologi PETRONAS, Institute of Hydrocarbon Recovery, Persiaran UTP, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Khairel Izzuan Ismail
- Geo Technology Resources SDN BHD. 31-1, Jalan Mawar 5B, Taman Mawar, 43900 Sepang, Selangor, Malaysia
| | - Manan Abdullah
- Geo Technology Resources SDN BHD. 31-1, Jalan Mawar 5B, Taman Mawar, 43900 Sepang, Selangor, Malaysia
| | - Asha Embrandiri
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, Dessie P.O. Box 1145, Amhara, Ethiopia
| | - Shahidah Mohd Nazer
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Azrin Azmi
- Program Geologi, Pusat Sains Bumi dan Alam Sekitar, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
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