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Wei X, Shi X, Yang M, Tan Q, Xu Z, Ma B, Pan D, Wu W. Phosphate and illite colloid pose a synergistic risk of enhanced uranium transport in groundwater: A challenge for phosphate immobilization remediation of uranium contaminated environmental water. WATER RESEARCH 2024; 255:121514. [PMID: 38554633 DOI: 10.1016/j.watres.2024.121514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/13/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
The phosphorus-containing reagents have been proposed to remediate the uranium contaminated sites due to the formation of insoluble uranyl phosphate mineralization products. However, the colloids, including both pseudo and intrinsic uranium colloids, could disturb the environmental fate of uranium due to its nonnegligible mobility. In this work, the transport pattern and micro-mechanism of uranium coupled to phosphate and illite colloid (IC) were investigated by combining column experiments and micro-spectroscopic evidences. Results showed that uranium transport was facilitated in granular media by forming the intrinsic uranyl phosphate colloid (such as Na-autunite) when the pH > 3.5 and CNa+ < 10 mM. Meanwhile, the mobility of uranium depended greatly on the typical water chemistry parameters governing the aggregation and deposit of intrinsic uranium colloids. However, the attachment of phosphate on illite granule increased the repulsive force and enhanced the dispersion stability of IC in the IC-U(VI)-phosphate ternary system. The non-preequilibrium transport and retention profiles, HRTEM-mapping, as well as TRLFS spectra revealed that the IC enhanced uranium mobility by forming the ternary IC-uranyl phosphate hybrid, and acted as the coagulation preventing agent for uranyl phosphate particles. This observed facilitation of uranium transport resulted from the formation of intrinsic uranyl phosphate colloids and IC-uranyl phosphate hybrids should be taken into consideration when evaluating the potential risk of uranium migration and optimizing the in-situ mineralization remediation strategy for uranium contaminated environmental water.
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Affiliation(s)
- Xiaoyan Wei
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China; Laboratory for Waste Management, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland
| | - Xinyi Shi
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Meilin Yang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Qi Tan
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Zhen Xu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Bin Ma
- Laboratory for Waste Management, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Duoqiang Pan
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Wangsuo Wu
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
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Robinson C, Shaw S, Lloyd JR, Graham J, Morris K. Phosphate (Bio)mineralization Remediation of 90Sr-Contaminated Groundwaters. ACS ES&T WATER 2023; 3:3223-3234. [PMID: 37854271 PMCID: PMC10580321 DOI: 10.1021/acsestwater.3c00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 10/20/2023]
Abstract
Historical operations at nuclear mega-facilities such as Hanford, USA, and Sellafield, UK have led to a legacy of radioactivity-contaminated land. Calcium phosphate phases (e.g., hydroxyapatite) can adsorb and/or incorporate radionuclides, including 90Sr. Past work has shown that aqueous injection of Ca-phosphate-generating solutions into the contaminated ground on both laboratory and field scales can reduce the amount of aqueous 90Sr in the systems. Here, two microbially mediated phosphate amendment techniques which precipitated Ca-phosphate, (i) Ca-citrate/Na-phosphate and (ii) glycerol phosphate, were tested in batch experiments alongside an abiotic treatment ((iii) polyphosphate), using stable Sr and site relevant groundwaters and sediments. All three amendments led to enhanced Sr removal from the solution compared to the sediment-only control. The Ca-citrate/Na-phosphate treatment removed 97%, glycerol phosphate 60%, and polyphosphate 55% of the initial Sr. At experimental end points, scanning electron microscopy showed that Sr-containing, Ca-phosphate phases were deposited on sediment grains, and XAS analyses of the sediments amended with Ca-citrate/Na-phosphate and glycerol phosphate confirmed Sr incorporation into Ca-phosphates occurred. Overall, Ca-phosphate-generating treatments have the potential to be applied in a range of nuclear sites and are a key option within the toolkit for 90Sr groundwater remediation.
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Affiliation(s)
- Callum Robinson
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, U.K.
| | - Samuel Shaw
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, U.K.
| | - Jonathan R. Lloyd
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, U.K.
| | - James Graham
- National
Nuclear Laboratory, Sellafield, Cumbria CA20 1PG, U.K.
| | - Katherine Morris
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, U.K.
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Singh G, Bhadange S, Bhawna F, Shewale P, Dahiya R, Aggarwal A, Manju F, Arya SK. Phytoremediation of radioactive elements, possibilities and challenges: special focus on agricultural aspects. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1-8. [PMID: 35244498 DOI: 10.1080/15226514.2022.2043239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The radioactive contamination has been reported frequently from agricultural lands and ground water. The main reason behind the radioactive pollution is unprotected mining of radioactive elements, unsafe discard of nuclear industrial waste, military applications, dumping of medically used radioisotopes, globally situated (>400) nuclear power plants and use of phosphate fertilizers in farming. Radionuclides are well known potent carcinogens that may cause the various types of cancers to human and animals due to the long exposure to radioactive contaminated sites. To get rid of from the radioactive pollution there is a need of practically successful and cost effective bioremediation technologies that should able to decontaminate the effected lands and water to benefit the mankind. Microbial and phytoremediation are well studied methods for decreasing or gradually eliminating the radioactive contaminants. In this review, we discussed the different strategies of microbial and phytoremediation of radionuclides and recent advancements, that can play the major role in bioremediation of soil and water.
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Affiliation(s)
- Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
| | - Surabhi Bhadange
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
| | - Fnu Bhawna
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
| | - Pratiksha Shewale
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
| | - Rahul Dahiya
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
| | | | - Fnu Manju
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, India
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Milojevic T, Treiman AH, Limaye SS. Phosphorus in the Clouds of Venus: Potential for Bioavailability. ASTROBIOLOGY 2021; 21:1250-1263. [PMID: 34342520 DOI: 10.1089/ast.2020.2267] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Aerosol phase elements such as phosphorus (P), sulfur (S), and metals including iron (Fe) are essential nutrients that could help sustain potential biodiversity in the cloud deck of Venus. While the presence of S and Fe in the venusian cloud deck has been broadly discussed (Zasova et al., 1981; Krasnopolsky, 2012, 2013, 2016, 2017; Markiewicz et al., 2014), less attention has been given to the presence of P in the aerosols and its involvement in the multiphase chemistry of venusian clouds and potential sources of P deposition in the venusian atmosphere. A detailed characterization of phosphorus atmospheric chemistry in the cloud deck of Venus is crucial for understanding its solubility and bioavailability for potential venusian cloud microbiota (Schulze-Makuch et al., 2004; Grinspoon and Bullock, 2007; Limaye et al., 2018). We summarize our current understanding of the presence of P in the clouds of Venus and its role in a hypothetical atmospheric (bio)chemical cycle. The results of the VeGa lander measurements are put into perspective with regard to nutrient limitation for a potential biosphere in venusian clouds. Our work combines the results of the VeGa measurements and focuses on P as an inorganic nutrient component and its potential sources and chemical behavior as part of multiple transformations of atmospheric chemistry. The VeGa data indicate that a plentiful phosphorus layer exists within a layer that reaches into the lower venusian clouds and exceeds minimum P abundances for terrestrial microbial life. Extreme acidification of airborne phases in the atmosphere of Venus may facilitate P solubilization and its bioavailability for a potential ecosystem in venusian clouds. Further sampling and P abundance measurements in the atmosphere of Venus would improve our knowledge of P speciation and facilitate determination of a bioavailable fraction of P detected in venusian clouds. The previous results deserve further experimental and modeling analyses to diminish uncertainties and understand the rates of atmospheric deposition of P and its role in a potential venusian cloud ecosystem.
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Affiliation(s)
- Tetyana Milojevic
- Space Biochemistry Group, Department of Biophysical Chemistry, University of Vienna, Vienna, Austria
| | | | - Sanjay S Limaye
- Space Science and Engineering Center, University of Wisconsin, Madison, Wisconsin, USA
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Edayilam N, Ferguson B, Montgomery D, Al Mamun A, Martinez N, Powell BA, Tharayil N. Dissolution and Vertical Transport of Uranium from Stable Mineral Forms by Plants as Influenced by the Co-occurrence of Uranium with Phosphorus. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:6602-6609. [PMID: 32319755 DOI: 10.1021/acs.est.9b06559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plants could mobilize (dissolution followed by vertical transport) uranium (U) from mineral forms that are otherwise stable. However, the variability of this plant-mediated mobilization of U as a function of the presence of various essential plant nutrients contained in these minerals remains unknown. A series of column experiments were conducted using Andropogon virginicus to quantify the vertical transport of U from stable mineral forms as influenced by the chemical and physical coexistence of U with the essential nutrient, phosphorus (P). The presence of plants significantly increased the vertical migration of U only when U was precipitated with P (UO2HPO4·4H2O; chernikovite) but not from UO2 (uraninite) that lacks any essential plant nutrient. The U dissolution was further increased when chernikovite co-occurred with a sparingly available form of P (FePO4) under P-limited growing conditions. Similarly, A. virginicus accumulated the highest amount of U from chernikovite (0.05 mg/g) in the presence of FePO4 compared to that of uraninite (no-P) and chernikovite supplemented with KH2PO4. These results signify an increased plant-mediated dissolution, uptake, and leaching of radioactive contaminants in soils that are nutrient deficient, a key factor that should be considered in management at legacy contamination sites.
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Affiliation(s)
- Nimisha Edayilam
- Department of Plant & Environmental Sciences, Clemson University, Clemson, South Carolina 29634, United States
| | - Brennan Ferguson
- Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Court, Anderson, South Carolina 29625, United States
| | - Dawn Montgomery
- Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Court, Anderson, South Carolina 29625, United States
| | - Abdullah Al Mamun
- Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Court, Anderson, South Carolina 29625, United States
| | - Nicole Martinez
- Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Court, Anderson, South Carolina 29625, United States
| | - Brian A Powell
- Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Court, Anderson, South Carolina 29625, United States
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Nishanth Tharayil
- Department of Plant & Environmental Sciences, Clemson University, Clemson, South Carolina 29634, United States
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6
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Uranyl phosphate (MUO2PO4, M = Na+, K+, NH4+) precipitation for uranium sequestering: formation and physicochemical characterisation. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07154-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
Apatite ore from Lao Cai (Vietnam) has large reserves and low prices. Its main component is fluorapatite. The purification and modification of apatite ore can produce a material that can be used as an absorbent for heavy metals with high efficiency. The molecular structure, phase component, specific surface area, element component, and morphology of modified apatite ore from Lao Cai province, Vietnam, were characterized by IR, XRD, BET, EDX, and SEM methods. The IR and XRD results show that the modified process transformed apatite ore from fluorapatite to nanohydroxyapatite. The specific surface area of modified apatite ore (100.79 m2/g) is much higher than the original ore (3.97 m2/g). The modified apatite ore was used to adsorb Cd2+ and Cu2+ ions in water. The effect of adsorbent mass, pH, contact time, and initial concentration of Cd2+ and Cu2+ on the adsorption efficiency and capacity was investigated. Besides, the isotherm adsorption model was determined using Freundlich and Langmuir theories.
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8
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Foster RI, Kim KW, Oh MK, Lee KY. Effective removal of uranium via phosphate addition for the treatment of uranium laden process effluents. WATER RESEARCH 2019; 158:82-93. [PMID: 31022530 DOI: 10.1016/j.watres.2019.04.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 06/09/2023]
Abstract
We have investigated the suitability of phosphate addition, in the form MH2PO4 (M = Na+, K+ or NH4+), for the selective removal of uranium from a complex waste effluent. The effluent in question is generated as part of a treatment strategy for a spent uranium catalyst, used in the production of acrylonitrile (Sohio process), which has been in temporary storage in Korea since 2004. Both pH (3.0-11.0) and phosphate dosages (0.25-10 mM) have been screened to identify the optimal conditions of 6.25 and 1 mM, respectively, for an initial uranium concentration of 0.16 mM. Precipitation kinetics have been investigated revealing the rapid removal of uranium from solution, with 30 min found to be optimal. The effluent was effectively decontaminated via Meta-ankoleite (K(UO2)(PO4)·3H2O) formation to uranium levels below the Korean release limit of 1 ppm for uranium-bearing liquid wastes, with KH2PO4 addition being chosen for the real process. Final decontamination factors of the order of ≥ 8000 were readily achieved. Aluminium, calcium and iron containing coagulants were screened for the clean-up of the remaining supernatant, post-uranium removal, ensuring the final effluent meets the relevant release criteria (pH, total suspended solids, total phosphate and turbidity) for general, non-radioactive, effluents. A process scheme is presented and discussed for adaptation to similar uranium containing effluents.
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Affiliation(s)
- Richard I Foster
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong, Daejeon, 305-353, Republic of Korea.
| | - Kwang-Wook Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong, Daejeon, 305-353, Republic of Korea
| | - Maeng-Kyo Oh
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong, Daejeon, 305-353, Republic of Korea
| | - Keun-Young Lee
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong, Daejeon, 305-353, Republic of Korea
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9
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Hechelski M, Louvel B, Dufrénoy P, Ghinet A, Waterlot C. The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminated soils from labile and phytoavailable potentially toxic elements to contribute into a circular economy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17489-17498. [PMID: 31020530 DOI: 10.1007/s11356-019-05129-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Aided phytoremediation was studied for 48 weeks with the aim of reducing extractable and phytoavailable toxic elements and producing potential marketable biomass. In this sense, biomass of ryegrass was produced under greenhouse on two contaminated garden soils that have been amended with two successive additions of phosphates. After the first addition of phosphates, seeds of ryegrass were sown and shoots were harvested twice. A second seedling was performed after carefully mixing the roots from the first production (used as compost), soils and phosphates. Forty-eight weeks after starting the experiments, the concentrations of Cd, Pb, Zn, Cu, Fe, and Mn extracted using the rhizosphere-based method were generally lower than those measured before the addition of phosphates and cultivation (except for Pb and Fe in the most contaminated soil). The concentrations of metals in the shoots of ryegrass from the second production were lower than those from the first (except for Al). The best results were obtained with phosphates and were the most relevant in the lowest contaminated soil, demonstrating that the available metal concentrations have to be taken into account in the management of contaminated soils. In view of the concentration of metals defined as carcinogens, mutagens, and reprotoxics (e.g., Cd, Pb) and those capable to be transformed into Lewis acids (e.g., Zn, Fe), the utilization of ryegrass in the revegetation of contaminated soils and in risk management may be a new production of marketable biomass. The development of phytomanagement in combination with this type of biomass coincided with the view that contaminated soils can still represent a valuable resource that should be used sustainably.
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Affiliation(s)
- Marie Hechelski
- Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d'Agriculture, 48 Boulevard Vauban, 59046, Lille Cedex, France
| | - Brice Louvel
- Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d'Agriculture, 48 Boulevard Vauban, 59046, Lille Cedex, France
| | - Pierrick Dufrénoy
- Laboratoire de chimie durable et santé, Yncréa Hauts-de-France, Ecole des Hautes Etudes d'Ingénieur, 13 rue de Toul, 59046, Lille Cedex, France
- Normandie University, UNILEHAVRE, FR 3038 CNRS, URCOM, BP: 1123, 76600, Le Havre, France
- EA 3221, INC3M CNRS-FR 3038, UFR ST 25 rue Philipe Lebon, Cedex, 76063, Le Havre, France
| | - Alina Ghinet
- Laboratoire de chimie durable et santé, Yncréa Hauts-de-France, Ecole des Hautes Etudes d'Ingénieur, 13 rue de Toul, 59046, Lille Cedex, France
- Faculté de médecine - Pôle recherche Inserm U995, LIRIC, Université de Lille, CHU de Lille, Place Verdun, 59045, Lille Cedex, France
- Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iasi, Bd. Carol I nr. 11, 700506, Iasi, Romania
| | - Christophe Waterlot
- Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d'Agriculture, 48 Boulevard Vauban, 59046, Lille Cedex, France.
- Equipe Biotechnologie et Gestion des Agents Pathogènes en agriculture (BIOGAP), Yncréa Hauts-de-France, Institut Supérieur d'Agriculture, 48 boulevard Vauban, 59046, Lille Cedex, France.
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Kulakovskaya T. Inorganic polyphosphates and heavy metal resistance in microorganisms. World J Microbiol Biotechnol 2018; 34:139. [DOI: 10.1007/s11274-018-2523-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022]
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Edayilam N, Montgomery D, Ferguson B, Maroli AS, Martinez N, Powell BA, Tharayil N. Phosphorus Stress-Induced Changes in Plant Root Exudation Could Potentially Facilitate Uranium Mobilization from Stable Mineral Forms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7652-7662. [PMID: 29722538 DOI: 10.1021/acs.est.7b05836] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Apparent deficiency of soil mineral nutrients often triggers specific physio-morphological changes in plants, and some of these changes could also inadvertently increase the ability of plants to mobilize radionuclides from stable mineral forms. This work, through a series of sand-culture, hydroponics, and batch-equilibration experiments, investigated the differential ability of root exudates of Andropogon virginicus grown under conditions with variable phosphorus (P) availability (KH2PO4, FePO4, Ca3(PO4)2, and no P) to solubilize uranium (U) from the uranyl phosphate mineral Chernikovite. The mineral form of P, and hence the bioavailability of P, affected the overall composition of the root exudates. The lower bioavailable forms of P (FePO4 and Ca3(PO4)2), but not the complete absence of P, resulted in a higher abundance of root metabolites with chelating capacity at 72 hrs after treatment application. In treatments with lower P-bioavailability, the physiological amino acid concentration inside of the roots increased, whereas the concentration of organic acids in the roots decreased due to the active exudation. In batch dissolution experiments, the organic acids, but not amino acids, increase the dissolution U from Chernikovite. The root exudate matrix of plants exposed to low available forms of P induced a >60% increase in U dissolution from Chernikovite due to 5-16 times greater abundance of organic acids in these treatments. However, this was ca. 70% of the theoretical dissolution achievable by this exudate matrix. These results highlight the potential of using active management of soil P as an effective tool to alter the plant-mediated mobilization of U in contaminated soil.
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Affiliation(s)
- Nimisha Edayilam
- Department of Plant & Environmental Sciences , Clemson University , Clemson , South Carolina 29634 , United States
| | - Dawn Montgomery
- Department of Environmental Engineering and Earth Sciences , Clemson University , 342 Computer Court , Anderson , South Carolina 29625 , United States
| | - Brennan Ferguson
- Department of Environmental Engineering and Earth Sciences , Clemson University , 342 Computer Court , Anderson , South Carolina 29625 , United States
| | - Amith S Maroli
- Department of Plant & Environmental Sciences , Clemson University , Clemson , South Carolina 29634 , United States
| | - Nicole Martinez
- Department of Environmental Engineering and Earth Sciences , Clemson University , 342 Computer Court , Anderson , South Carolina 29625 , United States
| | - Brian A Powell
- Department of Environmental Engineering and Earth Sciences , Clemson University , 342 Computer Court , Anderson , South Carolina 29625 , United States
| | - Nishanth Tharayil
- Department of Plant & Environmental Sciences , Clemson University , Clemson , South Carolina 29634 , United States
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12
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Adverse effect of heavy metals (As, Pb, Hg, and Cr) on health and their bioremediation strategies: a review. Int Microbiol 2018; 21:97-106. [DOI: 10.1007/s10123-018-0012-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 01/23/2023]
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13
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Stenzler B, Hinz A, Ruuskanen M, Poulain AJ. Ionic Strength Differentially Affects the Bioavailability of Neutral and Negatively Charged Inorganic Hg Complexes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:9653-9662. [PMID: 28701033 DOI: 10.1021/acs.est.7b01414] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mercury (Hg) bioavailability to bacteria in marine systems is the first step toward its bioamplification in food webs. These systems exhibit high salinity and ionic strength that will both alter Hg speciation and properties of the bacteria cell walls. The role of Hg speciation on Hg bioavailability in marine systems has not been teased apart from that of ionic strength on cell wall properties, however. We developed and optimized a whole-cell Hg bioreporter capable of functioning under aerobic and anaerobic conditions and exhibiting no physiological limitations of signal production to changes in ionic strength. We show that ionic strength controls the bioavailability of Hg species, regardless of their charge, possibly by altering properties of the bacterial cell wall. The unexpected anaerobic bioavailability of negatively charged halocomplexes may help explain Hg methylation in marine systems such as the oxygen-deficient zone in the oceanic water column, sea ice or polar snow.
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Affiliation(s)
- Benjamin Stenzler
- Biology Department, University of Ottawa , 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Aaron Hinz
- Biology Department, University of Ottawa , 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Matti Ruuskanen
- Biology Department, University of Ottawa , 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Alexandre J Poulain
- Biology Department, University of Ottawa , 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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14
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Comarmond MJ, Steudtner R, Stockmann M, Heim K, Müller K, Brendler V, Payne TE, Foerstendorf H. The Sorption Processes of U(VI) onto SiO 2 in the Presence of Phosphate: from Binary Surface Species to Precipitation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11610-11618. [PMID: 27754663 DOI: 10.1021/acs.est.6b02075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The ternary system containing aqueous U(VI), aqueous phosphate and solid SiO2 was comprehensively investigated using a batch sorption technique, in situ attenuated total reflection Fourier-transform infrared (ATR FT-IR) spectroscopy, time-resolved luminescence spectroscopy (TRLS), and surface complexation modeling (SCM). The batch sorption studies on silica gel (10 g/L) in the pH range 2.5 to 5 showed no significant increase in U(VI) uptake in the presence of phosphate at equimolar concentration of 20 μM, but significant increase in U(VI) uptake was observed for higher phosphate concentrations. In situ infrared and luminescence spectroscopic studies evidence the formation of two binary U(VI) surface species in the absence of phosphate, whereas after prolonged sorption in the presence of phosphate, the formation of a surface precipitate, most likely an autunite-like phase, is strongly suggested. From SCM, excellent fitting results were obtained exclusively considering two binary uranyl surface species and the formation of a solid uranyl phosphate phase. Ternary surface complexes were not needed to explain the data. The results of this study indicate that the sorption of U(VI) on SiO2 in the presence of inorganic phosphate initially involves binary surface-sorption species and evolves toward surface precipitation.
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Affiliation(s)
- M Josick Comarmond
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Robin Steudtner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
| | - Madlen Stockmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
| | - Karsten Heim
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
| | - Katharina Müller
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
| | - Vinzenz Brendler
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
| | - Timothy E Payne
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Harald Foerstendorf
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology , Bautzner Landstr. 400, D-01328 Dresden, Germany
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15
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Marques CR. Bio-rescue of marine environments: On the track of microbially-based metal/metalloid remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 565:165-180. [PMID: 27161138 DOI: 10.1016/j.scitotenv.2016.04.119] [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: 03/05/2016] [Revised: 04/17/2016] [Accepted: 04/18/2016] [Indexed: 06/05/2023]
Abstract
The recent awareness of the huge relevance of marine resources and ecological services is driving regulatory demands for their protection from overwhelming contaminants, such as metals/metalloids. These contaminants enter and accumulate in different marine niches, hence deeply compromising their quality and integrity. Bioremediation has been flourishing to counteract metal/metalloid impacts, since it provides cost-effective and sustainable options by relying on ecology-based technologies. The potential of marine microbes for metal/metalloid bioremediation is the core of many studies, due to their high plasticity to overcome successive environmental hurdles. However, any thorough review on the advances of metal/metalloid bioremediation in marine environments was so far unveiled. This review is designed to (i) outline the characteristics and potential of marine microbes for metal/metalloid bioremediation, (ii) describe the underlying pathways of resistance and detoxification, as well as useful methodologies for their characterization, (iii) identify major bottlenecks on metal/metalloid bioremediation with marine microbes, (iv) present alternative strategies based on microbial consortia and engineered microbes for enhanced bioremediation, and (v) propose key research avenues to keep pace with a changing society, science and economy in a sustainable manner.
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Affiliation(s)
- Catarina R Marques
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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16
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Kuppusamy S, Palanisami T, Megharaj M, Venkateswarlu K, Naidu R. Ex-Situ Remediation Technologies for Environmental Pollutants: A Critical Perspective. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2016; 236:117-192. [PMID: 26423074 DOI: 10.1007/978-3-319-20013-2_2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Pollution and the global health impacts from toxic environmental pollutants are presently of great concern. At present, more than 100 million people are at risk from exposure to a plethora of toxic organic and inorganic pollutants. This review is an exploration of the ex-situ technologies for cleaning-up the contaminated soil, groundwater and air emissions, highlighting their principles, advantages, deficiencies and the knowledge gaps. Challenges and strategies for removing different types of contaminants, mainly heavy metals and priority organic pollutants, are also described.
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Affiliation(s)
- Saranya Kuppusamy
- CERAR-Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, SA, 5095, Australia
- CRC CARE-Cooperative Research Centre for Contamination Assessment and Remediation of Environment, 486, Salisbury South, SA, 5106, Australia
| | - Thavamani Palanisami
- CRC CARE-Cooperative Research Centre for Contamination Assessment and Remediation of Environment, 486, Salisbury South, SA, 5106, Australia
- GIER- Global Institute for Environmental Research, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- CRC CARE-Cooperative Research Centre for Contamination Assessment and Remediation of Environment, 486, Salisbury South, SA, 5106, Australia.
- GIER- Global Institute for Environmental Research, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur, 515055, India
| | - Ravi Naidu
- CRC CARE-Cooperative Research Centre for Contamination Assessment and Remediation of Environment, 486, Salisbury South, SA, 5106, Australia
- GIER- Global Institute for Environmental Research, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
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