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Ammar A, Nouira A, El Mouridi Z, Boughribil S. Recent trends in the phytoremediation of radionuclide contamination of soil by cesium and strontium: Sources, mechanisms and methods: A comprehensive review. CHEMOSPHERE 2024; 359:142273. [PMID: 38750727 DOI: 10.1016/j.chemosphere.2024.142273] [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: 02/23/2024] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/19/2024]
Abstract
This comprehensive review examines recent trends in phytoremediation strategies to address soil radionuclide contamination by cesium (Cs) and strontium (Sr). Radionuclide contamination, resulting from natural processes and nuclear-related activities such as accidents and the operation of nuclear facilities, poses significant risks to the environment and human health. Cs and Sr, prominent radionuclides involved in nuclear accidents, exhibit chemical properties that contribute to their toxicity, including easy uptake, high solubility, and long half-lives. Phytoremediation is emerging as a promising and environmentally friendly approach to mitigate radionuclide contamination by exploiting the ability of plants to extract toxic elements from soil and water. This review focuses specifically on the removal of 90Sr and 137Cs, addressing their health risks and environmental implications. Understanding the mechanisms governing plant uptake of radionuclides is critical and is influenced by factors such as plant species, soil texture, and physicochemical properties. Phytoremediation not only addresses immediate contamination challenges but also provides long-term benefits for ecosystem restoration and sustainable development. By improving soil health, biodiversity, and ecosystem resilience, phytoremediation is in line with global sustainability goals and environmental protection initiatives. This review aims to provide insights into effective strategies for mitigating environmental hazards associated with radionuclide contamination and to highlight the importance of phytoremediation in environmental remediation efforts.
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Affiliation(s)
- Ayyoub Ammar
- Laboratory of Virology, Microbiology, Quality and Biotechnology /Eco-toxicology and Biodiversity (LVMQB/EB), Faculty of Sciences and Techniques Mohammedia, University Hassan II, Casablanca, Morocco; National Center for Energy, Sciences, and Nuclear Techniques (CNESTEN), Rabat, Morocco; Laboratory of Environment and Conservation of Natural Resources, National Institute of Agronomique Research (INRA), Rabat, Morocco.
| | - Asmae Nouira
- National Center for Energy, Sciences, and Nuclear Techniques (CNESTEN), Rabat, Morocco
| | - Zineb El Mouridi
- Laboratory of Environment and Conservation of Natural Resources, National Institute of Agronomique Research (INRA), Rabat, Morocco
| | - Said Boughribil
- Laboratory of Virology, Microbiology, Quality and Biotechnology /Eco-toxicology and Biodiversity (LVMQB/EB), Faculty of Sciences and Techniques Mohammedia, University Hassan II, Casablanca, Morocco
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Kumar V, Rout C, Singh J, Saharan Y, Goyat R, Umar A, Akbar S, Baskoutas S. A review on the clean-up technologies for heavy metal ions contaminated soil samples. Heliyon 2023; 9:e15472. [PMID: 37180942 PMCID: PMC10172878 DOI: 10.1016/j.heliyon.2023.e15472] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/19/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
The soil contamination with heavy metal ions is one of the grave intricacies faced worldwide over the last few decades by the virtue of rapid industrialization, human negligence and greed. Heavy metal ions are quite toxic even at low concentration a swell as non-biodegradable in nature. Their bioaccumulation in the human body leads to several chronic and persistent diseases such as lung cancer, nervous system break down, respiratory problems and renal damage etc. In addition to this, the increased concentration of these metal ions in soil, beyond the permissible limits, makes the soil unfit for further agricultural use. Hence it is our necessity, to monitor the concentration of these metal ions in the soil and water bodies and adopt some better technologies to eradicate them fully. From the literature survey, it was observed that three main types of techniques viz. physical, chemical, and biological were employed to harness the heavy metal ions from metal-polluted soil samples. The main goal of these techniques was the complete removal of the metal ions or the transformation of them into less hazardous and toxic forms. Further the selection of the remediation technology depends upon different factors such as process feasibility/mechanism of the process applied, nature and type of contaminants, type and content of the soil, etc. In this review article, we have studied in detail all the three technologies viz. physical, chemical and biological with their sub-parts, mechanism, pictures, advantages and disadvantages.
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Affiliation(s)
- Vikas Kumar
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Chadetrik Rout
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Joginder Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
- Corresponding author.
| | - Yajvinder Saharan
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Rohit Goyat
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, And Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
- Corresponding author. Department of Chemistry, Faculty of Science and Arts, and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia.
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - S. Baskoutas
- Department of Materials Science, University of Patras, Patras, Greece
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Kumar A, Thakur A, Panesar PS. A review on the industrial wastewater with the efficient treatment techniques. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02779-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Singh AD, Khanna K, Kour J, Dhiman S, Bhardwaj T, Devi K, Sharma N, Kumar P, Kapoor N, Sharma P, Arora P, Sharma A, Bhardwaj R. Critical review on biogeochemical dynamics of mercury (Hg) and its abatement strategies. CHEMOSPHERE 2023; 319:137917. [PMID: 36706814 DOI: 10.1016/j.chemosphere.2023.137917] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/21/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Mercury (Hg) is among the naturally occurring heavy metal with elemental, organic, and inorganic distributions in the environment. Being considered a global pollutant, high pools of Hg-emissions ranging from >6000 to 8000 Mg Hg/year get accumulated by the natural and anthropogenic activities in the atmosphere. These toxicants have high persistence, toxicity, and widespread contamination in the soil, water, and air resources. Hg accumulation inside the plant parts amplifies the traces of toxic elements in the linking food chains, leads to Hg exposure to humans, and acts as a potential genotoxic, neurotoxic and carcinogenic entity. However, excessive Hg levels are equally toxic to the plant system and severely disrupt the physiological and metabolic processes in plants. Thus, a plausible link between Hg-concentration and its biogeochemical behavior is highly imperative to analyze the plant-soil interactions. Therefore, it is requisite to bring these toxic contaminants in between the acceptable limits to safeguard the environment. Plants efficiently incorporate or absorb the bioavailable Hg from the soil thus a constructive understanding of Hg uptake, translocation/sequestration involving specific heavy metal transporters, and detoxification mechanisms are drawn. Whereas recent investigations in biological remediation of Hg provide insights into the potential associations between the plants and microbes. Furthermore, intense research on Hg-induced antioxidants, protein networks, metabolic mechanisms, and signaling pathways is required to understand these bioremediations techniques. This review sheds light on the mercury (Hg) sources, pollution, biogeochemical cycles, its uptake, translocation, and detoxification methods with respect to its molecular approaches in plants.
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Affiliation(s)
- Arun Dev Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India.
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Jaspreet Kour
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Shalini Dhiman
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Tamanna Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Kamini Devi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Neerja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pardeep Kumar
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Nitika Kapoor
- P.G. Department of Botany, Hans Raj Mahila Maha Vidyalaya, Jalandhar, Punjab, India
| | - Priyanka Sharma
- School of Bioengineering Sciences and Research, MIT-ADT University, Pune, Maharashtra, India
| | - Priya Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India.
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Sandu T, Sârbu A, Căprărescu S, Stoica EB, Iordache TV, Chiriac AL. Polymer Membranes as Innovative Means of Quality Restoring for Wastewater Bearing Heavy Metals. MEMBRANES 2022; 12:membranes12121179. [PMID: 36557086 PMCID: PMC9783154 DOI: 10.3390/membranes12121179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 05/31/2023]
Abstract
The problem that has aroused the interest of this review refers to the harmful effect of heavy metals on water sources due to industrial development. In this respect, the review is aimed at achieving a literature survey on the outstanding results and advancements in membranes and membrane technologies for the advanced treatment of heavy metal-loaded wastewaters. Particular attention is given to synthetic polymer membranes, for which the proper choice of precursor material can provide cost benefits while ensuring good decontamination activity. Furthermore, it was also found that better removal efficiencies of heavy metals are achieved by combining the membrane properties with the adsorption properties of inorganic powders. The membrane processes of interest from the perspective of industrial applications are also discussed. A noteworthy conclusion is the fact that the main differences between membranes, which refer mainly to the definition and density of the pore structure, are the prime factors that affect the separation process of heavy metals. Literature studies reveal that applying UF/MF approaches prior to RO leads to a better purification performance.
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Affiliation(s)
- Teodor Sandu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Andrei Sârbu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Simona Căprărescu
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Ghe. Polizu Street, No. 1-7, 011061 Bucharest, Romania
| | - Elena-Bianca Stoica
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Tanța-Verona Iordache
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Anita-Laura Chiriac
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
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Wang Y, Luo Z, Liu D, Li Y. Immobilization of mercury in tailings originating from the historical artisanal and small-scale gold mining using sodium polysulfide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:56562-56578. [PMID: 35347614 DOI: 10.1007/s11356-022-19569-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
A series of sodium polysulfides (SPSs) with different sulfur indexes was prepared as stabilizers to amend elemental mercury-contaminated artisanal small-scale gold mine (ASGM) tailings in Hubei, China, by controlling the molar ratio of sulfur and sodium sulfides as 1:1, 2:1, 3:1, and 4:1 during the synthesis. XRD, XPS, and laser Raman spectroscopy all suggested that the synthesized SPSs were a mixture of multiple polysulfides, sulfur, sodium sulfides, and sodium thiosulfate. Based on toxicity characteristic leaching procedure test (TCLP), mercury stabilization efficiency of SPSs was evaluated and proved to be more superior than sulfur, sodium sulfide, and also calcium polysulfide, with an optimal stabilization efficiency of 97.16% at SPS/THg = 1:2, SPSs pH = initial pH, and liquid-to-solid ratio = 20:7. A pseudo-second-order kinetic model was able to interpret the stabilization kinetics and demonstrated that mercury stabilization rate increased with the sulfur index in the SPSs, but excess SPSs were potentially to inhibit the precipitation of mercury. Speciation analysis results determined with sequential extraction indicated that the unstable mercury, elemental mercury, and organic-bound mercury fractions decreased respectively by up to 88.6%, 53.5%, and 26.3%. Pearson correlation analysis showed that the mercury stabilization in the mine tailings amended with SPSs mainly occurs from the precipitation of the elemental mercury, and the organic mercury fraction reduction was correlated with the decrease of the unstable mercury.
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Affiliation(s)
- Yu Wang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Zhiqiang Luo
- Yangtze Ecology and Environment Co. Ltd, Wuhan, 430062, China
| | - Danqing Liu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.
| | - Yilian Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
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Removal of Iron(II) from Effluents of Steel Mills Using Chemically Modified Pteris vittata Plant Leaves Utilizing the Idea of Phytoremediation. WATER 2022. [DOI: 10.3390/w14132004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dargai District Malakand, Pakistan, is a tax-free zone that attracts many industrialists to install their plants in this area. Along with other industries, a number of steel mills are polluting the natural environment of this locality. This study aimed to evaluate heavy metals levels in steel mills effluents and fabricate an efficient adsorbent from the leaves of plants growing on the banks of the drainage lines of the industries and having high phytoremediation capabilities, through chemical modifications. Initially, the effluents were analyzed for heavy metal concentrations, then the leaves of a plant (Pteris vittata) with better phytoremediation capability were chemically modified. The leaves of Pteris vittata were crushed into a fine powder, followed by chemical modification with HNO3, then washed with distilled water, neutralized with NaOH and finally activated through calcium chloride to enhance its biosorption ability, abbreviated as CMPVL. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), surface area analyzer, energy dispersive X-ray spectroscopy (EDX), and thermal gravimetric analysis (TGA) were used to characterize the CMPVL. The modified leaves in the powdered form were then used for the reclamation of Fe(II) present in the effluents of the mentioned industries. Batch biosorption tests were performed under varied physicochemical conditions of pH (2–9), contact time (10–140 min), temperature (293–333 K), biosorbent dose (0.01–0.13 g), and initial metal concentration (20–300 mg L−1) to optimize the removal of the selected metal. Langmuir, Jovanovic, Freundlich, Temkin, and Harkins–Jura isotherm models were used to assess the equilibrium data. With a high R2 value of 0.977, the Langmuir model offered an excellent match to the equilibrium data. The pseudo-first order, pseudo-second order, power function, intraparticle diffusion, and Natarajan–Khalaf models were applied to experimental kinetics data. With R2 values of 0.999, the pseudo-second order model well fitted the obtained data. The Van’t Hoff equation was used to calculate ΔH°, ΔS° and ΔG° of Fe(II) sorption on CMPVL. The ∆H° and ∆G° were negative, whereas ΔS° was positive, suggesting that the biosorption process was exothermic, favorable, and spontaneous. The selected plant leaves were found to be efficient in the reclamation of iron from the industrial effluents (as the plant has a high natural capability for remediating the selected metal ion) after chemical modification and may be used as an alternative to activated carbon as being a low-cost material and a high phytoremediator of iron metal. Such natural phenomena of phytoremediation should be utilized in obtaining efficient adsorbents for other metals as well.
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Han I, Whitworth KW, Christensen B, Afshar M, An Han H, Rammah A, Oluwadairo T, Symanski E. Heavy metal pollution of soils and risk assessment in Houston, Texas following Hurricane Harvey. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 296:118717. [PMID: 34933061 PMCID: PMC8883480 DOI: 10.1016/j.envpol.2021.118717] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 11/30/2021] [Accepted: 12/17/2021] [Indexed: 05/02/2023]
Abstract
In August 2017, after Hurricane Harvey made landfall, almost 52 inches of rain fell during a three-day period along the Gulf Coast Region of Texas, including Harris County, where Houston is located. Harris County was heavily impacted with over 177,000 homes and buildings (approximately 12 percent of all buildings in the county) experiencing flooding. The objective of this study was to measure 13 heavy metals in soil in residential areas and to assess cancer and non-cancer risk for children and adults after floodwaters receded. Between September and November 2017, we collected 174 surface soil samples in 10 communities, which were classified as "High Environmental Impact" or "Low Environmental Impact" communities, based on a composite metric of six environmental parameters. A second campaign was conducted between May 2019 and July 2019 when additional 204 soil samples were collected. Concentrations of metals at both sampling campaigns were higher in High Environmental Impact communities than in Low Environmental Impact communities and there was little change in metal levels between the two sampling periods. The Pollution Indices of lead (Pb), zinc, copper, nickel, and manganese in High Environmental Impact communities were significantly higher than those in Low Environmental Impact communities. Further, cancer risk estimates in three communities for arsenic through soil ingestion were greater than 1 in 1,000,000. Although average soil Pb was lower than the benchmark of the United States Environmental Protection Agency, the hazard indices for non-cancer outcomes in three communities, mostly attributed to Pb, were greater than 1. Health risk estimates for children living in these communities were greater than those for adults.
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Affiliation(s)
- Inkyu Han
- Department of Epidemiology and Biostatistics, Temple University College of Public Health, Philadelphia, PA, 19122, USA
| | - Kristina W Whitworth
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA; Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Brian Christensen
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA; Centers for Disease Control and Prevention, National Institute of Occupational Safety and Health Cincinnati, OH, 45213, USA
| | - Masoud Afshar
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA
| | - Heyreoun An Han
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Amal Rammah
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Temitope Oluwadairo
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA
| | - Elaine Symanski
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA; Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, 77030, USA.
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Sahito ZA, Zehra A, Chen S, Yu S, Tang L, Ali Z, Hamza S, Irfan M, Abbas T, He Z, Yang X. Rhizobium rhizogenes-mediated root proliferation in Cd/Zn hyperaccumulator Sedum alfredii and its effects on plant growth promotion, root exudates and metal uptake efficiency. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127442. [PMID: 34673390 DOI: 10.1016/j.jhazmat.2021.127442] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/29/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
In this study, Rhizobium rhizogenes-mediated root proliferation system in Sedum alfredii has been established. Twenty strains of R. rhizogenes were screened for root proliferation. A significant difference (P < 0.01) was observed in plant morphological characters under influence of different bacterial strains. The highest root fresh weight (3.236 g/plant) was observed with strain AS12556. Furthermore, significant difference (P < 0.05) was observed in the chemical composition of organic acids, Tartaric acid (TA), Succinic acid (SA), Malic acid (MA), Citric acid (CA) and Oxalic acid (OA), pH, Total Nitrogen (TN), Total Organic Carbon (TOC) and soluble sugars in root exudates with different R. rhizogenes mediated roots. Furthermore, a series of hydroponics experiments were conducted with varying concentrations of Cd (25, 50 and 75 µM) and Zn (100, 200 and 500 µM) to assess the phytoextraction efficiency of proliferated roots with Rhizobium. Several plants with proliferated roots showed enhanced growth and improved metal extraction efficiency. Five strains (LBA 9402, K599, AS12556, MSU440 and C58C1) were identified as potential strains for root proliferation in Sedum alfredii. R. rhizogenes strain AS12556 improved Cd/Zn phytoextraction by exogenous production of phytochemicals to promote root proliferation, improved shoot biomass, lowered oxidative damage and enhanced phytoextraction efficiency in S. alfredii. Therefore, it has been selected as a potential microbial partner of S. alfredii to develop extensive rooting system for better growth and enhanced phytoremediation potential. Results suggest that R. rhizogenes mediated root proliferation system can be used for optimizing metal extraction from contaminated soils.
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Affiliation(s)
- Zulfiqar Ali Sahito
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China; Department of Earth and Environmental Sciences, Bahria University Karachi Campus, Karachi 75300, Pakistan
| | - Afsheen Zehra
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China; Department of Botany, Federal Urdu University of Arts, Science and Technology, Karachi 75300, Pakistan
| | - Shaoning Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Song Yu
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Lin Tang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Zarina Ali
- Department of Botany, Federal Urdu University of Arts, Science and Technology, Karachi 75300, Pakistan
| | - Salma Hamza
- Department of Earth and Environmental Sciences, Bahria University Karachi Campus, Karachi 75300, Pakistan
| | - Muhammad Irfan
- Department of Earth and Environmental Sciences, Bahria University Karachi Campus, Karachi 75300, Pakistan
| | - Tanveer Abbas
- Department of Microbiology, University of Karachi, Karachi 75250, Pakistan
| | - Zhenli He
- University of Florida, Institute of Food and Agricultural Sciences, Indian River Research and Education Center, Fort Pierce, FL 34945, United States
| | - Xiaoe Yang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China.
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Song H, Chung H, Nam K. Effect of monovalent and divalent ion solutions as washing agents on the removal of Sr and Cs from soil near a nuclear power plant. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125165. [PMID: 33540261 DOI: 10.1016/j.jhazmat.2021.125165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/20/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
Solutions of monovalent and divalent ions, including calcium, magnesium, ammonium, and potassium, were tested in the removal of Sr and Cs from soil near a nuclear power plant. The Ca2+ and K+ solutions exhibited removal efficiencies of 68.2% and 81.3% for Sr and Cs, respectively. This high performance was probably due to the physicochemical similarities between 'Ca and Sr' and 'K and Cs'. Alternatively, the Mg2+ and NH4+ solutions performed much worse, despite having the same valences as Ca2+ and K+, respectively. Ca2+ and K+ solutions could also simultaneously remove cationic toxic metals present with the nuclides, albeit much less efficiently (30-40%). For anionic metalloid As and anionic toxic metal Cr, the efficiency was even lower (< 20%). The five-step sequential extraction experiment confirmed that all chemical forms of Sr and Cs, except the residual form, were extensively removed by the Ca2+ and K+ solutions, respectively. For comparison, widely used washing agents exhibited removal efficiencies of 25-30%. Notably, Fe2+ and Mn2+ ions were hardly detected in the Ca2+ solution, while their concentrations were much higher in the common washing agents, suggesting the involvement of an ion-exchange mechanism in Sr and Cs removal, rather than a Fe/Mn oxide dissolution mechanism.
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Affiliation(s)
- Hojae Song
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Korea
| | - Hyeonyong Chung
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Korea
| | - Kyoungphile Nam
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Korea.
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Liu C, Liu J, Guo P, Peng J, Zhang L, Li Y. Mercury removal from spent low‐level mercury catalyst by thermal treatment. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chao Liu
- State Key Laboratory of Nuclear Resources and Environment East China University of Technology Nanchang China
| | - Jian Liu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and Technology Kunming China
- Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming China
| | - Ping Guo
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and Technology Kunming China
- Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming China
| | - Jinhui Peng
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and Technology Kunming China
- Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming China
| | - Libo Zhang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and Technology Kunming China
- Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming China
| | - Yaping Li
- Guangdong Key Laboratory of Radioactive and Rare Resource Utilization Shaoguan China
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12
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Benavides BJ, Drohan PJ, Spargo JT, Maximova SN, Guiltinan MJ, Miller DA. Cadmium phytoextraction by Helianthus annuus (sunflower), Brassica napus cv Wichita (rapeseed), and Chyrsopogon zizanioides (vetiver). CHEMOSPHERE 2021; 265:129086. [PMID: 33340834 DOI: 10.1016/j.chemosphere.2020.129086] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/13/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
The use of phytoextraction plant species to accumulate soil metals into harvestable plant parts is a method used for managing soils with high cadmium (Cd). We evaluated three Cd accumulating species recently recommended for such use in cacao farms where Cd removal is needed to maintain markets: Helianthus annuus (sunflower), Brassica napus (rapeseed), and Chyrsopogon zizanioides (vetiver). Plants were grown in two greenhouse pot experiments with different Cd-spiked growth media: (sand plus perlite) and a natural soil. Plant total Cd and Cd uptake in shoot biomass of all species, across both experiments, increased linearly with increasing amounts of added Cd. Rapeseed had the highest plant total Cd and sunflower had the highest Cd uptake in shoot biomass. The highest application of Cd corresponded to the highest plant total Cd and shoot biomass Cd uptake, regardless of species. The bioconcentration factor (BCF) for each species increased in a curvilinear manner with added Cd, with maximum BCF values for plants grown in the sand and perlite matrix at 2.5 mg kg-1 added Cd and in the natural soil at 5.0 mg kg-1 added Cd. We conclude that the Cd uptake (shoot biomass only) capability of the three species examined is greatest for sunflower given its increased uptake with Cd additions, its BCF value > 1, and lack of observed visual Cd toxicity symptoms, fungus and insect damage. Although these species had BCF >1, the potential annual removal of Cd would have been too small to support a meaningful phytoextraction practice.
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Affiliation(s)
- Bolaños J Benavides
- Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - P J Drohan
- Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - J T Spargo
- Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - S N Maximova
- Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - M J Guiltinan
- Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - D A Miller
- Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.
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13
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Taketani NF, Taketani RG, Leite SGF, Melo IS, de Lima-Rizzo AC, Andreote FD, da Cunha CD. Application of extracellular polymers on soil communities exposed to oil and nickel contamination. Braz J Microbiol 2021; 52:651-661. [PMID: 33443727 DOI: 10.1007/s42770-021-00428-z] [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: 07/24/2020] [Accepted: 01/07/2021] [Indexed: 11/24/2022] Open
Abstract
The petrochemical industry is responsible for many accidental releases of pollutants in soil such as hydrocarbons and toxic metals. This co-contamination is responsible for a delay in the degradation of the organic pollution. Many successful technologies to remove these metals apply extracellular polymeric substances (EPS). In this study, we tested the application of an EPS from a Paenibacillus sp. to aid the bioremediation of soils contaminated with crude oil and nickel. We conducted a microcosm experiment to soils containing combinations of oil, nickel, and EPS. The final concentration of oil was evaluated with an infrared spectrometer. Also, we sequenced the metagenomes of the samples in an ion torrent sequencer. The application of EPS did not aid the removal of hydrocarbons with or without the presence of nickel. However, it led to a smaller decrease in the diversity indexes. EPS decreased the abundance of Actinobacteria and increased that of Proteobacteria. The EPS also decreased the connectivity among Actinobacteria in the network analysis. The results indicated that the addition of EPS had a higher effect on the community structure than nickel. Altogether, our results indicate that this approach did not aid the bioremediation of hydrocarbons likely due to its effect in the community structure that affected hydrocarbonoclastic microorganisms.
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Affiliation(s)
- Natália Franco Taketani
- Department of Pharmacy, University São Francisco, R. Waldemar César da Silveira, 105 - Jardim Cura D'ars, Campinas, SP, 13045-510, Brazil. .,Coordination of Metallurgical and Environmental Process, Centre of Mineral Technology, Av. Pedro Calmon, 900 - Cidade Universitária, Rio de Janeiro, RJ, 21941-908, Brazil.
| | - Rodrigo Gouvêa Taketani
- Coordination of Metallurgical and Environmental Process, Centre of Mineral Technology, Av. Pedro Calmon, 900 - Cidade Universitária, Rio de Janeiro, RJ, 21941-908, Brazil. .,Department of Soil Sciences, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil.
| | - Selma Gomes Ferreira Leite
- Biochemistry Department, Chemistry School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Andrea Camardella de Lima-Rizzo
- Coordination of Metallurgical and Environmental Process, Centre of Mineral Technology, Av. Pedro Calmon, 900 - Cidade Universitária, Rio de Janeiro, RJ, 21941-908, Brazil
| | - Fernando Dini Andreote
- Department of Soil Sciences, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Cláudia Duarte da Cunha
- Coordination of Metallurgical and Environmental Process, Centre of Mineral Technology, Av. Pedro Calmon, 900 - Cidade Universitária, Rio de Janeiro, RJ, 21941-908, Brazil.
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14
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Ke X, Zhang FJ, Zhou Y, Zhang HJ, Guo GL, Tian Y. Removal of Cd, Pb, Zn, Cu in smelter soil by citric acid leaching. CHEMOSPHERE 2020; 255:126690. [PMID: 32387903 DOI: 10.1016/j.chemosphere.2020.126690] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 05/27/2023]
Abstract
Soil washing has been verified as a feasible technology for source reduction for contaminated soil with heavy metals. We conducted batch and column leaching experiments to investigate the removal of Cd, Pb, Cu and Zn from smelter soil by citric acid. The removal efficiency of heavy metals by batch leaching reached a maximum (89.1% Cd, 26.8% Pb, 41.7% Zn, 14.2% Cu) at a concentration of 0.1 M and a pH of 5. Citric acid also removed 91.3%, 11.1%, 39.2% and 11.1% of Cd, Pb, Zn, and Cu respectively after column leaching. Citric acid mainly removed exchangeable, carbonate bound and oxide bound Cd, Pb, Cu and Zn fractions. Vertical distributions of Cd, Cu and Zn similarly increased with increasing soil depth. Chestnut shells were applied to the recovery of citric acid from the waste eluent, which removed 84.4%, 97.5%, 74.6%, 70.3% of Cd, Pb, Zn, and Cu, respectively, due to chestnut shell chelation. Fresh and regenerated citric acid was used in batch leaching of heavy metal-contaminated soil, and they showed similar ability to extract heavy metals.
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Affiliation(s)
- Xin Ke
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, 110136, Shen Yang, China
| | - Fei Jie Zhang
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, 110136, Shen Yang, China; Technical Centre For, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, 100012, Beijing, China
| | - Yan Zhou
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, 110136, Shen Yang, China
| | - Hai Jun Zhang
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, 110136, Shen Yang, China
| | - Guan Lin Guo
- Technical Centre For, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, 100012, Beijing, China.
| | - Yu Tian
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, 110136, Shen Yang, China
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15
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Efficacy of Enzymatically Induced Calcium Carbonate Precipitation in the Retention of Heavy Metal Ions. SUSTAINABILITY 2020. [DOI: 10.3390/su12177019] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study evaluated the efficacy of enzyme induced calcite precipitation (EICP) in restricting the mobility of heavy metals in soils. EICP is an environmentally friendly method that has wide ranging applications in the sustainable development of civil infrastructure. The study examined the desorption of three heavy metals from treated and untreated soils using ethylene diamine tetra-acetic acid (EDTA) and citric acid (C6H8O7) extractants under harsh conditions. Two natural soils spiked with cadmium (Cd), nickel (Ni), and lead (Pb) were studied in this research. The soils were treated with three types of enzyme solutions (ESs) to achieve EICP. A combination of urea of one molarity (M), 0.67 M calcium chloride, and urease enzyme (3 g/L) was mixed in deionized (DI) water to prepare enzyme solution 1 (ES1); non-fat milk powder (4 g/L) was added to ES1 to prepare enzyme solution 2 (ES2); and 0.37 M urea, 0.25 M calcium chloride, 0.85 g/L urease enzyme, and 4 g/L non-fat milk powder were mixed in DI water to prepare enzyme solution 3 (ES3). Ni, Cd, and Pb were added with load ratios of 50 and 100 mg/kg to both untreated and treated soils to study the effect of EICP on desorption rates of the heavy metals from soil. Desorption studies were performed after a curing period of 40 days. The curing period started after the soil samples were spiked with heavy metals. Soils treated with ESs were spiked with heavy metals after a curing period of 21 days and then further cured for 40 days. The amount of CaCO3 precipitated in the soil by the ESs was quantified using a gravimetric acid digestion test, which related the desorption of heavy metals to the amount of precipitated CaCO3. The order of desorption was as follows: Cd > Ni > Pb. It was observed that the average maximum removal efficiency of the untreated soil samples (irrespective of the load ratio and contaminants) was approximately 48% when extracted by EDTA and 46% when extracted by citric acid. The soil samples treated with ES2 exhibited average maximum removal efficiencies of 19% and 10% when extracted by EDTA and citric acid, respectively. It was observed that ES2 precipitated a maximum amount of calcium carbonate (CaCO3) when compared to ES1 and ES3 and retained the maximum amount of heavy metals in the soil by forming a CaCO3 shield on the heavy metals, thus decreasing their mobility. An approximate improvement of 30% in the retention of heavy metal ions was observed in soils treated with ESs when compared to untreated soil samples. Therefore, the study suggests that ESs can be an effective alternative in the remediation of soils contaminated with heavy metal ions.
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16
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Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy. SUSTAINABILITY 2020. [DOI: 10.3390/su12156278] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Circular Economy (CE) is expected to accelerate the use of resources with bio-based origin. Cities have an important role in such an economy, not only as main consumers but also because vegetation provides numerous ecosystem services essential for the well-being of urban dwellers. Urban lands are, however, heavily burdened with both past and present activities and ongoing urbanization. Retrofitting obsolete and potentially contaminated brownfields provides an opportunity to engage with bio-based land uses within the city. At the same time, plants are an important part of Gentle Remediation Options (GROs), a more sustainable alternative for managing contamination risks and restoring soil health. This paper (1) provides a tentative selection of Urban Greenspaces (UGSs) relevant for brownfields, and a compilation of ecosystem services provided by the selected UGSs, and (2) presents a framework covering the 14 selected bio-based land uses on brownfields, including GRO interventions over time. This framework provides three practical tools: the conceptualization of linkages between GROs and prospective UGS uses, a scatter diagram for the realization of 14 UGS opportunities on brownfields, and a decision matrix to analyze the requirements for UGS realization on brownfields.
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17
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Lahori AH, Mierzwa-Hersztek M, Demiraj E, Sajjad RU, Ali I, Shehnaz H, Aziz A, Zuberi MH, Pirzada AM, Hassan K, Zhang Z. Direct and residual impacts of zeolite on the remediation of harmful elements in multiple contaminated soils using cabbage in rotation with corn. CHEMOSPHERE 2020; 250:126317. [PMID: 32120154 DOI: 10.1016/j.chemosphere.2020.126317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/04/2020] [Accepted: 02/22/2020] [Indexed: 05/10/2023]
Abstract
In the present work, in-situ two pot trials were conducted to explore the direct and residual influences of zeolite (ZL) on plant height, dry biomass and bioavailability of Pb, Cd, Cu, and Zn by growing cabbage followed by corn in goldmine-contaminated (GM-C), smelter factory-contaminated (SF-C), and farmland-contaminated (FL-C) soils. Initially, a single treatment of ZL was applied at 20 t/ha, and cabbage was grown under greenhouse pot conditions. After cabbage harvesting, corn was grown in the same pots without additional application of ZL. The results indicated that ZL as an amendment evidently promoted the cabbage and corn yields, whereas the residual influence of ZL did not promote corn dry matter yield in SF-C and FL-C soils compared to CK. Incorporation of ZL potentially decreased the mobility of Pb, Cd, Cu and Zn in contaminated soils after harvesting cabbage and corn compared with CK. In both crops, the Pb, Cd, Cu and Zn contents in plants root and shoot biomasses were dramatically reduced by the direct and residual impacts of ZL rather than CK. This study highlights that the direct and residual influences of ZL at a 20 t/ha application rate have the possibility to support the reclamation of soils polluted with harmful elements and that, by itself, ZL can promote plant growth and increase the value of field crops. The detailed studied regarding residual influence of ZL for restoration of multi-metal polluted soils would be confirmed at the ex-situ condition.
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Affiliation(s)
- Altaf Hussain Lahori
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi, 712100, China; Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Monika Mierzwa-Hersztek
- Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120, Krakow, Poland; AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, Department of Mineralogy, Petrography and Geochemistry, al. Mickiewicza 30, 30-059, Krakow, Poland
| | - Erdona Demiraj
- Department of Agro-Environment and Ecology, Faculty of Agriculture and Environment, Agriculture University of Tirana, 9302, Albania
| | - Raja Umer Sajjad
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Imran Ali
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Hina Shehnaz
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Ambreen Aziz
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Mohammad Hashim Zuberi
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Abdul Majeed Pirzada
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Khalid Hassan
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi, 712100, China.
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18
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Begum ZA, Rahman IMM, Ishii K, Tsukada H, Hasegawa H. Dynamics of Strontium and geochemically correlated elements in soil during washing remediation with eco-complaint chelators. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 259:110018. [PMID: 32072959 DOI: 10.1016/j.jenvman.2019.110018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/28/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
In the study, the dynamics of Sr2+ and geochemically correlated elements (Ca2+, Ba2+, and Y3+) in soil with chelators in the mix (soil to chelator ratio, 1:10; matrix, H2O) were assessed to understand chemical-induced washing remediation of radiogenic waste solids. Specifically, EDTA (2,2',2″,2‴-(ethane-1,2-diyldinitrilo)tetraacetic acid), EDDS (2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid), GLDA (2-[bis(carboxymethyl)amino]pentanedioic acid), and HIDS (2-(1,2-dicarboxyethylamino)-3-hydroxy-butanedioic acid) are chelators that are used as extractants. The effect of solution pH on chelator-induced extractions of the target elements (t-Es: Sr2+, Ca2+, Ba2+, or Y3+) from soil and stability constants of the t-Es complexes with chelators were used to explain the trends and magnitudes in interactions. Pre- and post-extractive solid-phase speciation was used to define the extent of the competence of each chelator in persuading dissolution of t-Es in the soil. The effects of ultrasonic energy, admixtures of biodegradable chelators, and excess chelators in solution (1:20) were also analyzed on the extractive removal of t-Es from soil. The results indicate that the Sr2+ removal with biodegradable chelators significantly exceeded (approximately 70%) when compared to that of environmentally-persistent EDTA at lower solution pHs and a higher soil to chelator ratio (GLDA > HIDS > EDDS ≈ EDTA). However, the extraction of the geochemically related element was significantly lower.
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Affiliation(s)
- Zinnat A Begum
- Venture Business Laboratory, Advanced Science and Social Co-Creation Promotion Organization, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan; Department of Civil Engineering, Southern University, 739/A Mehedibag Road, Chittagong, 4000, Bangladesh.
| | - Ismail M M Rahman
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima, 960-1296, Japan.
| | - Kento Ishii
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan
| | - Hirofumi Tsukada
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima, 960-1296, Japan
| | - Hiroshi Hasegawa
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan.
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19
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Gailey AD, Schachter AE, Egendorf SP, Mielke HW. Quantifying soil contamination and identifying interventions to limit health risks. Curr Probl Pediatr Adolesc Health Care 2020; 50:100740. [PMID: 32008961 DOI: 10.1016/j.cppeds.2019.100740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Indexed: 01/10/2023]
Abstract
Numerous toxicants contaminate soil and negatively affect the environments that children explore. Accurately measuring these toxicants and characterizing the level of soil contamination may be difficult and must include measurements of both the environmental concentrations and the exposure responses of human populations. This article reviews the current methods and technologies available for quantifying soil contamination. Several intervention strategies exist for limiting human exposure to contaminated soils and the strengths and weaknesses of these methods are discussed. Lastly, current policies on soil contamination and the importance of protecting vulnerable populations by developing means to improve health conditions for children are reviewed.
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Affiliation(s)
- Andrew D Gailey
- The University of North Carolina School of Medicine, Chapel Hill, NC 27516, United States
| | - Aubrey E Schachter
- Louisiana State University Health Science Center, New Orleans, LA 70112, United States
| | - Sara P Egendorf
- The Advanced Science Research Center at the Graduate Center and Brooklyn College, City University of New York, NY 10031, United States
| | - Howard W Mielke
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112, United States.
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20
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Wang L, Hou D, Cao Y, Ok YS, Tack FMG, Rinklebe J, O'Connor D. Remediation of mercury contaminated soil, water, and air: A review of emerging materials and innovative technologies. ENVIRONMENT INTERNATIONAL 2020; 134:105281. [PMID: 31726360 DOI: 10.1016/j.envint.2019.105281] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/23/2019] [Accepted: 10/20/2019] [Indexed: 05/24/2023]
Abstract
Mercury contamination in soil, water and air is associated with potential toxicity to humans and ecosystems. Industrial activities such as coal combustion have led to increased mercury (Hg) concentrations in different environmental media. This review critically evaluates recent developments in technological approaches for the remediation of Hg contaminated soil, water and air, with a focus on emerging materials and innovative technologies. Extensive research on various nanomaterials, such as carbon nanotubes (CNTs), nanosheets and magnetic nanocomposites, for mercury removal are investigated. This paper also examines other emerging materials and their characteristics, including graphene, biochar, metal organic frameworks (MOFs), covalent organic frameworks (COFs), layered double hydroxides (LDHs) as well as other materials such as clay minerals and manganese oxides. Based on approaches including adsorption/desorption, oxidation/reduction and stabilization/containment, the performances of innovative technologies with the aid of these materials were examined. In addition, technologies involving organisms, such as phytoremediation, algae-based mercury removal, microbial reduction and constructed wetlands, were also reviewed, and the role of organisms, especially microorganisms, in these techniques are illustrated.
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Affiliation(s)
- Liuwei Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China.
| | - Yining Cao
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Filip M G Tack
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Seoul, Republic of Korea
| | - David O'Connor
- School of Environment, Tsinghua University, Beijing 100084, China
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21
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Fedje KK, Strömvall AM. Enhanced soil washing with copper recovery using chemical precipitation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 236:68-74. [PMID: 30716692 DOI: 10.1016/j.jenvman.2019.01.098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 01/22/2019] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
Worldwide, the number of contaminated sites is large, and remediation methods including recovery of metals have potential to be key aspects of a sustainable and circular economy. Soil washing, followed by chemical precipitation is a possible method for recovery of metals. The purpose of this study is to propose a complete recovery method, where Cu is efficiently leached from samples with contaminated bark ash and soil. Thereafter the Cu is precipitated as metal hydroxide. The results show that pH is the most important parameter that controls the leaching of Cu. The leaching process was independent of the liquid to solid ratio (L/S) for the soil, while the leaching increased with the L/S ratio for the bark ash. The shaking method used for leaching affected the results, as a low leaching efficiency was achieved with the turn-over-end technique used. The final Cu precipitation product from the bark ash contained ≥40 wt % Cu, whereas the corresponding soil precipitation product contained ≤15 wt % Cu. The conclusion is that the bark ash precipitation product is of interest for further refining within the metal industry. Due to inefficient leaching and washing, the soil and bark ash residues left after leaching are classified as hazardous waste.
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Affiliation(s)
- Karin Karlfeldt Fedje
- Water Environment Technology, Department of Architecture and Civil Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden; Recycling and Waste Management, Renova AB, Box 156, SE-401 22 Gothenburg, Sweden.
| | - Ann-Margret Strömvall
- Water Environment Technology, Department of Architecture and Civil Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
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22
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Franić M, Galić V. As, Cd, Cr, Cu, Hg: Physiological Implications and Toxicity in Plants. PLANT METALLOMICS AND FUNCTIONAL OMICS 2019:209-251. [DOI: 10.1007/978-3-030-19103-0_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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23
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Lu G, Yue C, Qiu G, Guo M, Cheng F, Zhang M. High mercury leachate containing HgS 22- complex ion: Detoxifying solidification and high efficiency Hg extraction. J Environ Sci (China) 2018; 73:177-184. [PMID: 30290866 DOI: 10.1016/j.jes.2018.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/22/2018] [Accepted: 01/26/2018] [Indexed: 06/08/2023]
Abstract
Clean and efficient treatment of high-mercury leachate produced from remediation of mercury-polluted soil has become a huge challenge for environmental scientists. In this work, cement solidification was firstly adopted to treat the high-concentration mercury leachate, which had high alkalinity. Different mercury concentrations, namely 3.120mg/L Hg mercury leachate and 9.243mg/L Hg mercury concentrated leachate, were separately solidified by Portland cement. The results indicated that simply using the cement can properly solidify both the leachates to meet the waste landfill standard, with liquid (mL)/solid (g) ratio (L/S ratio) of 4:10-6:10. In order to make full use of mercury in the leachates, a Hg extraction method was subsequently carried out under different experimental parameters, such as temperature and pH value. It was shown that the Hg extraction ratio could reach as high as 99.84% and almost all the mercury in the leachate could be transformed to HgS precipitate; moreover, the Hg concentration in the treated leachate was reduced from 3.120 to 0.005mg/L at pH2.98 and 30°C, which was much less than the limit of the national standard, indicating that the leachate had been completely cleaned and could be discharged freely. Hence, simple cement solidification renders high-mercury leachate nontoxic, and the Hg extraction method can successfully recover the Hg and enable the residual leachate to be discharged safely.
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Affiliation(s)
- Guanghua Lu
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Changsheng Yue
- Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China
| | - Guibo Qiu
- Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China
| | - Min Guo
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Fangqin Cheng
- Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes in Shanxi University, Taiyuan 030006, China
| | - Mei Zhang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes in Shanxi University, Taiyuan 030006, China.
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Mauko Pranjić A, Oprčkal P, Mladenovič A, Zapušek P, Urleb M, Turk J. Comparative Life Cycle Assessment of possible methods for the treatment of contaminated soil at an environmentally degraded site. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 218:497-508. [PMID: 29709818 DOI: 10.1016/j.jenvman.2018.04.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 04/05/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
This study reports on the assessment of the environmental sustainability of different management practices for an environmentally degraded site in Slovenia: the Old Zinc-Works in the town of Celje. Life Cycle Assessments (LCAs) were applied in order to evaluate possible trade-offs by comparing a proposed in situ remediation scenario with two other reclamation scenarios (scenario 2: incineration, metal extraction, underground disposal and reclamation of the site by refilling it with replacement material, and scenario 3: underground disposal and reclamation of the site by refilling it with replacement material) and with a no-action scenario. The results of the comparisons performed show that in the case of the in situ remediation scenario, the consumption of resources is smaller by a factor of 51 compared to that in the second scenario and by a factor of 7 compared to that in the third scenario. The impacts on human health and ecosystem quality are approximately 30 and 3.5 times less in the first scenario than in the second and third scenarios, respectively. Compared to the impact of the no-action scenario, the impact on human health of the in situ soil remediation scenario is approximately 6 times less, whereas its impact on the ecosystem is approximately 4 times less. The results confirmed that the in situ soil remediation scenario is the most sustainable practice from an environmental point of view. Its main advantage lies in the achieved conservation of natural resources. Despite the recovery of valuable metals (Zn, Pb, Cu, and Ni) from the bottom ash, the second scenario is significantly more environmentally burdensome compared to both the first and third scenarios. This outcome is due to the significantly high impacts related to the consumption of fuels needed to support the incineration of low-calorific contaminated soil and to electricity consumption. The present study demonstrates that the results of LCA studies, in addition to technological, economic and social indicators, yield important information about the sustainability of different management practices and therefore should be an important part of decision-making when approaching the reclamation of environmentally degraded sites.
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Affiliation(s)
- Alenka Mauko Pranjić
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia.
| | - Primož Oprčkal
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia.
| | - Ana Mladenovič
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia.
| | - Peter Zapušek
- Stonex d.o.o., Cesta Leona Dobrotinjška 18, 3230 Šentjur, Slovenia.
| | - Marjan Urleb
- Stonex d.o.o., Cesta Leona Dobrotinjška 18, 3230 Šentjur, Slovenia.
| | - Janez Turk
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia.
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Huang TH, Lai YJ, Hseu ZY. Efficacy of cheap amendments for stabilizing trace elements in contaminated paddy fields. CHEMOSPHERE 2018; 198:130-138. [PMID: 29421722 DOI: 10.1016/j.chemosphere.2018.01.109] [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: 10/19/2017] [Revised: 12/27/2017] [Accepted: 01/22/2018] [Indexed: 06/08/2023]
Abstract
In situ stabilization of trace elements by adding cheap amendments is an emerging technology for large-scale soil remediation. Various amendments have been examined well in the literature, but related have focused predominantly on short-term laboratory scale incubation or pot experiments. This study applied dolomitic lime at 40 ton ha-1, oyster shell (OS) at 80 ton ha-1, and sugarcane bagasse compost (SC) at 60 ton ha-1 to a paddy field in Taiwan for two rice (Oryza sativa L.) cropping seasons. The aims of study were to gain an understanding of the bioavailable concentrations of Cr, Ni, Cu, and Zn in the amended soil and the metal uptake of rice for practical amendment use in field-scale remediation of contaminated soils. The treatments of lime and OS significantly (p < 0.05) decreased the 0.1 N HCl-extractable metals in the soil. The increase in soil pH was the key factor in decreasing the bioavailable pool of metals in the soil by using lime and OS. The concentrations of Cu, Zn, and Ni in the brown rice were substantially reduced only through the addition of OS, and thus OS met the requirement of being a cheap, locally available, and environmentally compatible amendment for field-scale soil remediation. The translocation of Cr in rice plants is heavily restricted, and thus no significant differences in Cr uptake by rice grain were observed between the different amendment treatments. However, SC is not recommended as an immobilization agent because it caused a pH decrease in the amended soil.
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Affiliation(s)
| | - Yun-Jie Lai
- Apollo Technology Co., LTD, Taipei 10595, Taiwan
| | - Zeng-Yei Hseu
- Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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Kumpiene J, Nordmark D, Carabante I, Sužiedelytė-Visockienė J, Aksamitauskas VČ. Remediation of soil contaminated with organic and inorganic wood impregnation chemicals by soil washing. CHEMOSPHERE 2017; 184:13-19. [PMID: 28575800 DOI: 10.1016/j.chemosphere.2017.05.140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/17/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
The aim of this study was to evaluate the efficiency of a large scale washing/wet sieving technique for a soil contaminated with wood impregnation chemicals by 1) defining the final distribution of trace elements (As, Cu, Cr, Zn) and polycyclic aromatic hydrocarbons (PAH) in separated soil particle size fractions; and 2) defining the leaching behavior of the contaminants in these soil fractions. A soil washing experiment was implemented at waste management facility in Sweden using a full scale soil sorting and washing equipment. Five tons of soil was loaded to the equipment and wet-sieved into the following fractions: >16 mm, 8-16 mm, 2-8 mm, 0.2-2 mm, <0.2 mm and a fraction that floated on top of the slurry before the final separation phase, composed of organic matter (OM). Analysis of total concentrations of contaminants in all soil fractions indicated that wet sieving/soil washing was not efficient to reduce the total volume of soil that needs further treatment. Even the coarsest soil fractions (>8 mm) contained elevated concentrations of total As and PAH. Leaching of As from all washed soil fractions was so high, that none of the particle size fractions could be disposed of without additional treatment.
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Affiliation(s)
- Jurate Kumpiene
- Waste Science and Technology, Luleå University of Technology, 971 87 Luleå, Sweden.
| | - Désirée Nordmark
- Waste Science and Technology, Luleå University of Technology, 971 87 Luleå, Sweden
| | - Ivan Carabante
- Waste Science and Technology, Luleå University of Technology, 971 87 Luleå, Sweden
| | - Jūratė Sužiedelytė-Visockienė
- Department of Geodesy and Cadastre, Vilnius Gediminas Technical University, Saulėtekio Av. 11, LT-10223 Vilnius, Lithuania
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Complexation behavior of SrII and geochemically-related elements (MgII, CaII, BaII, and YIII) with biodegradable aminopolycarboxylate chelators (GLDA and HIDS). J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ramzani PMA, Coyne MS, Anjum S, Khan WUD, Iqbal M. In situ immobilization of Cd by organic amendments and their effect on antioxidant enzyme defense mechanism in mung bean (Vigna radiata L.) seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 118:561-570. [PMID: 28783510 DOI: 10.1016/j.plaphy.2017.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
In situ immobilization of Cd is desirable due to the damaging effects of ex situ remediation techniques on soil. In this greenhouse study, the role of biochar (BC), chitosan (CH), and green waste (GW) was studied for in-situ Cd immobilization and alleviating Cd toxicity in mung bean seedlings. Amendments were applied at rates of 0.5% and 1% (w/w). The minimum mean value of Cd, in root, shoot, and soil (DTPA-Cd) (12.2, 4.7, and 0.7 mg kg-1, respectively), occurred in the Cd + 1% CH treatment compared to all Cd amended treatments. Shoot dry weight (21%) increased significantly in Cd + 1% BC amended soil compared to the control. Reactive oxygen species were affected significantly, with the lowest increased value of hydrogen peroxide (4%) in the Cd + 1% CH treatment while the minimum increase in the value of superoxide (O2•-) occurred in the Cd + 1% BC soil compared to the control. Malondialdehyde (20%) increased lowest with Cd + 1% CH treatment. Protein, ascorbate (AsA) contents, and catalase (CAT) activity increased the most (3, 2, and 15%, respectively) in the Cd + 1% BC treatment while dehydroascorbate reductase (DHAR) and superoxide dismutase (SOD) activity increased the most (9 and 234%, respectively) in the Cd + 1% CH soil compared to the control. Glutathione reductase (GR), ascorbate peroxidase (APX), and glutathione peroxidase (GPX), activity were reduced the most in the Cd + 1.0% BC treatment while dehydroascorbate (DHA) and glutathione S-transferase (GST) activity decreased the most in the Cd + 1% CH soil. Overall, in situ immobilization by amendments improved growth and antioxidant defense mechanisms of mung bean seedlings and was reflected by tolerance to Cd-toxicity.
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Affiliation(s)
| | - Mark S Coyne
- Department of Plant and Soil Sciences, University of Kentucky, KY 40546-0091, USA
| | - Shazia Anjum
- Cholistan Institute of Desert Studies, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Waqas-Ud-Din Khan
- Sustainable Development Study Center, Government College University, Lahore 54000, Pakistan
| | - Muhammad Iqbal
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad 38000 Pakistan
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Guemiza K, Coudert L, Metahni S, Mercier G, Besner S, Blais JF. Treatment technologies used for the removal of As, Cr, Cu, PCP and/or PCDD/F from contaminated soil: A review. JOURNAL OF HAZARDOUS MATERIALS 2017; 333:194-214. [PMID: 28359036 DOI: 10.1016/j.jhazmat.2017.03.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 06/07/2023]
Abstract
The contamination of soils by metals such as arsenic, chromium, copper and organic compounds such as pentachlorophenol (PCP) and dioxins and furans (PCDD/F) is a major problem in industrialized countries. Excavation followed by disposal in an appropriate landfilling is usually used site to manage these contaminated soils. Many researches have been conducted to develop physical, biological, thermal and chemical methods to allow the rehabilitation of contaminated sites. Thermal treatments including thermal desorption seemed to be the most appropriate methods, allowing the removal of more than 99.99% of organic contaminants but, they are ineffective for inorganic compounds. Biological treatments have been developed to remove inorganic and hydrophobic organic contaminants but their applications are limited to soils contaminated by easily biodegradable organic compounds. Among the physical technologies available, attrition is the most commonly used technique for the rehabilitation of soils contaminated by both organic and inorganic contaminants. Chemical processes using acids, bases, redox agents and surfactants seemed to be an interesting option to simultaneously extract organic and inorganic contaminants from soils. This paper will provide an overview of the recent developments in the field of decontamination technologies applicable for the removal of As, Cr, Cu, PCP and/or PCDD/F from contaminated soils.
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Affiliation(s)
- Karima Guemiza
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1 K 9A9, Canada.
| | - Lucie Coudert
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1 K 9A9, Canada.
| | - Sabrine Metahni
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1 K 9A9, Canada.
| | - Guy Mercier
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1 K 9A9, Canada.
| | - Simon Besner
- Institut de recherche d'Hydro-Québec (IREQ), IREQ, 1800, boul. Lionel-Boulet, Varennes, QC, J3X 1S1, Canada.
| | - Jean-François Blais
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1 K 9A9, Canada.
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30
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Lime and Phosphate Amendment Can Significantly Reduce Uptake of Cd and Pb by Field-Grown Rice. SUSTAINABILITY 2017. [DOI: 10.3390/su9030430] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Tao X, Li A, Yang H. Immobilization of metals in contaminated soils using natural polymer-based stabilizers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:348-355. [PMID: 28024809 DOI: 10.1016/j.envpol.2016.12.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 11/03/2016] [Accepted: 12/06/2016] [Indexed: 06/06/2023]
Abstract
Three low-cost natural polymer materials, namely, lignin (Ln), carboxymethyl cellulose, and sodium alginate, were used for soil amendment to immobilize lead and cadmium in two contaminated soil samples collected from a mining area in Nanjing, China. The remediation effects of the aforementioned natural polymers were evaluated by toxicity characteristic leaching procedure (TCLP) and sequential extractions. The stabilizers could lower the bioavailability of Pb and Cd in the contaminated soils, and the amount of the exchangeable forms of the aforementioned two metals were reduced evidently. TCLP results showed that the leaching concentrations of Pb and Cd were decreased by 5.46%-71.1% and 4.25%-49.6%, respectively, in the treated soils. The contents of the organic forms of the two metals both increased with the increase in stabilizer dose on the basis of the redistribution of metal forms by sequential extractions. These findings were due to the fact that the abundant oxygen-containing groups on the polymeric amendments were effective in chelating and immobilizing Pb and Cd, which have been further confirmed from the metal adsorptions in aqueous solutions. Moreover, Ln achieved the greatest effect among the three polymers under study because of the former's distinct three-dimensional molecular structure, showing the preferential immobilization of Pb over Cd in soils also. Thus, the above-mentioned natural polymers hold great application potentials for reducing metal ion entry into the food chain at a field scale.
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Affiliation(s)
- Xue Tao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Hu Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
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32
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Mahbub KR, Krishnan K, Andrews S, Venter H, Naidu R, Megharaj M. Bio-augmentation and nutrient amendment decrease concentration of mercury in contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 576:303-309. [PMID: 27788445 DOI: 10.1016/j.scitotenv.2016.10.083] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 06/06/2023]
Abstract
Four mercury (Hg) contaminated soils with different pH (7.6, 8.5, 4.2 and 7.02) and total organic carbon contents (2.1, 2.2, 4 and 0.9%) were subjected to bioremediation utilizing a Hg volatilizing bacterial strain Sphingobium SA2 and nutrient amendment. In a field with ~280mg/kgHg, 60% of Hg was removed by bio-augmentation in 7days, and the removal was improved when nutrients were added. Whereas in artificially spiked soils, with ~100mg/kgHg, removal due to bio-augmentation was 33 to 48% in 14days. In the field contaminated soil, nutrient amendment alone without bio-augmentation removed 50% of Hg in 28days. Nutrient amendment also had an impact on Hg remediation in the spiked soils, but the best results were obtained when the strain and nutrients both were applied. The development of longer root lengths from lettuce and cucumber seeds grown in the remediated soils confirmed that the soil quality improved after bioremediation. This study clearly demonstrates the potential of Hg-reducing bacteria in remediation of Hg-contaminated soils. However, it is desirable to trap the volatilized Hg for enhanced bioremediation.
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Affiliation(s)
- Khandaker Rayhan Mahbub
- Global Centre for Environmental Remediation, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), Mawson Lakes, Adelaide, SA 5095, Australia.
| | - Kannan Krishnan
- Global Centre for Environmental Remediation, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), Mawson Lakes, Adelaide, SA 5095, Australia
| | - Stuart Andrews
- University of South Australia, Adelaide, SA 5001, Australia
| | - Henrietta Venter
- School of Pharmacy & Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5000, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), Mawson Lakes, Adelaide, SA 5095, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), Mawson Lakes, Adelaide, SA 5095, Australia
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Mahbub KR, Bahar MM, Labbate M, Krishnan K, Andrews S, Naidu R, Megharaj M. Bioremediation of mercury: not properly exploited in contaminated soils! Appl Microbiol Biotechnol 2017; 101:963-976. [DOI: 10.1007/s00253-016-8079-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 12/14/2016] [Indexed: 12/18/2022]
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Jobin P, Coudert L, Taillard V, Blais JF, Mercier G. Remediation of inorganic contaminants and polycyclic aromatic hydrocarbons from soils polluted by municipal solid waste incineration residues. ENVIRONMENTAL TECHNOLOGY 2016; 37:1983-1995. [PMID: 26729603 DOI: 10.1080/09593330.2015.1137636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three soils polluted by municipal solid waste (MSW) incineration residues and containing various concentrations of Cu, Pb, Sb, Sn and Zn were treated using magnetism, gravity separation (jig and shaking table) and flotation/leaching. The process removed between 18% and 39% of the contaminants present in soil 1, between 31% and 53% of the contaminants present in soil 2 and between 42% and 56% of the contaminants present in soil 3. Polycyclic aromatic hydrocarbons were present only in soil 3, and the process removed 64% of its PAHs total content. Magnetism seemed to be the most efficient technique to remove metals from contaminated soils, followed by gravity separation and finally flotation/leaching. The global efficiency of the process was higher when the initial contaminant concentrations were lower (smaller proportions of MSW incineration residues). The estimated costs of the process, including direct and indirect costs, varied from $82 to $88 per ton of treated soil depending on the proportion of MSW incineration residues mixed with the soil.
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Affiliation(s)
- Philippe Jobin
- a Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec , Québec , Canada
| | - Lucie Coudert
- a Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec , Québec , Canada
| | | | - Jean-Francois Blais
- a Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec , Québec , Canada
| | - Guy Mercier
- a Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec , Québec , Canada
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Hu Y, Cheng H, Tao S. The Challenges and Solutions for Cadmium-contaminated Rice in China: A Critical Review. ENVIRONMENT INTERNATIONAL 2016; 92-93:515-32. [PMID: 27179698 DOI: 10.1016/j.envint.2016.04.042] [Citation(s) in RCA: 390] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 05/08/2023]
Abstract
The wide occurrence of Cd-contaminated rice in southern China poses significant public health risk and deserves immediate action, which arises primarily from extensive metal (including Cd) contamination of paddies with the fast expansion of nonferrous metal mining and smelting activities. Accumulation of Cd in rice grains can be reduced by removing Cd from the contaminated paddy soils, reducing its bioavailability, and controlling its uptake by rice plants. Although a range of measures can be taken to rehabilitate Cd-contaminated lands, including soil replacement and turnover, chemical washing, and phytoremediation, they are either too expensive and/or too slow. Various amendment materials, including lime, animal manures, and biochar, can be used to immobilize Cd in soils, but such fixation approach can only temporarily reduce Cd availability to rice uptake. Cultivation of alternative crops with low Cd accumulation in edible plant parts is impractical on large scales due to extensive contamination and food security concerns in southern China. Transgenic techniques can help develop rice cultivars with low Cd accumulation in grains, but little public acceptance is expected for such products. As an alternative, selection and development of low-Cd rice varieties and hybrids through plant biotechnology and breeding, particularly, by integration of marker-assisted selection (MAS) with traditional breeding, could be a practical and acceptable option that would allow continued rice production in soils with high bioavailability of Cd. Plant biotechnology and breeding can also help develop Cd-hyperaccumulating rice varieties, which can greatly facilitate phytoremediation of contaminated paddies. To eliminate the long-term risk of Cd entering the food chain, soils contaminated by Cd should be cleaned up when cost-effective remediation measures are available.
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Affiliation(s)
- Yuanan Hu
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China
| | - Hefa Cheng
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
| | - Shu Tao
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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36
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Emadi M, Savasari M, Bahmanyar MA, Biparva P. Application of stabilized zero valent iron nanoparticles for immobilization of lead in three contrasting spiked soils. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2494-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Woldetsadik D, Drechsel P, Keraita B, Marschner B, Itanna F, Gebrekidan H. Effects of biochar and alkaline amendments on cadmium immobilization, selected nutrient and cadmium concentrations of lettuce (Lactuca sativa) in two contrasting soils. SPRINGERPLUS 2016; 5:397. [PMID: 27047723 PMCID: PMC4816957 DOI: 10.1186/s40064-016-2019-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 03/16/2016] [Indexed: 11/25/2022]
Abstract
To assess the efficiency of seven treatments including biochars produced from dried faecal matter and manures as stabilizing agents of cadmium (Cd)-spiked soils, lettuce was grown in glasshouse on two contrasting soils. The soils used were moderately fertile silty loam and less fertile sandy loam and the applied treatments were 7 % w/w. The reduction of bioavailable Cd (ammonium nitrate extractable) and its phytoavailability for lettuce were used as assessment criteria in the evaluation of stabilization performance of each treatment. Moreover, the agronomic values of the treatments were also investigated. Ammonium nitrate extraction results indicated that faecal matter biochar, cow manure biochar and lime significantly reduced bioavailable Cd by 84–87, 65–68 and 82–91 %, respectively, as compared to the spiked controls. Unpredictably, coffee husk biochar induced significant increment of Cd in NH4NO3 extracts. The immobilization potential of faecal matter biochar and lime were superior than the other treatments. However, lime and egg shell promoted statistically lower yield and P, K and Zn concentrations response of lettuce plants compared to the biochar treatments. The lowest Cd and highest P tissue concentrations of lettuce plants were induced by faecal matter and cow manure biochar treatments in both soils. Additionally, the greatest Cd phytoavailability reduction for lettuce was induced by poultry litter and cow manure biochars in the silty loam soil. Our results indicate that faecal matter and animal manure biochars have shown great potential to promote Cd immobilization and lettuce growth response in heavily contaminated agricultural fields.
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Affiliation(s)
- Desta Woldetsadik
- School of Natural Resources Management and Environmental Sciences, Haramaya University, 138, Dire Dawa, Ethiopia
| | - Pay Drechsel
- International Water Management Institute, Colombo, Sri Lanka
| | - Bernard Keraita
- Department of Global Health, University of Copenhagen, Copenhagen, Denmark
| | - Bernd Marschner
- Department of Soil Science/Soil Ecology, Ruhr-University Bochum, Bochum, Germany
| | - Fisseha Itanna
- Department of Crop Science, University of Nambia, Windhoek, Namibia
| | - Heluf Gebrekidan
- School of Natural Resources Management and Environmental Sciences, Haramaya University, 138, Dire Dawa, Ethiopia
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Jez E, Lestan D. Prediction of blood lead levels in children before and after remediation of soil samples in the upper Meza Valley, Slovenia. JOURNAL OF HAZARDOUS MATERIALS 2015; 296:138-146. [PMID: 25917691 DOI: 10.1016/j.jhazmat.2015.04.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 04/08/2015] [Accepted: 04/16/2015] [Indexed: 06/04/2023]
Abstract
The Meza Valley, Slovenia, has been contaminated by Pb smelting, resulting in an epidemic of lead poisoning in childhood. The potential of remediation with EDTA soil washing to mitigate the risk from Pb poisoning was investigated by applying the Integrated Exposure Uptake Bio-kinetic (IEUBK) model. Soils from 79 locations were collected and the total and bio-accessible Pb concentrations were determined before and after extraction with 60 mmol kg(-1) EDTA. Extraction reduced the soil Pb concentration in towns of Mezica, Zerjav and Crna by 53, 67 and 62%, respectively, and the concentration of in vitro bio-accessible Pb in the simulated human gastric phase by 2.6-, 3.2- and 2.9-times, respectively. The predictions of the IEUBK model based on Pb contamination data were verified with data on blood Pb levels in children. The IEUBK model predicted that, after soil remediation, the number of locations at which the expected blood Pb level in children was higher than the stipulated 10 μg d L(-1) would decrease by 90, 38 and 91% in the towns of Mezica, Zerjav and Crna, respectively. The results confirmed the feasibility of soil washing with EDTA as an efficient remediation measure in Mezica and Crna and advice for soil capping/removal for the most polluted town of Zerjav.
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Affiliation(s)
- Erika Jez
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Domen Lestan
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; Envit Ltd., Slovenia.
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Cundy A, Bardos P, Puschenreiter M, Witters N, Mench M, Bert V, Friesl-Hanl W, Müller I, Weyens N, Vangronsveld J. Developing Effective Decision Support for the Application of “Gentle” Remediation Options: The GREENLAND Project. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/rem.21435] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Markus Puschenreiter
- Department of Forest and Soil Sciences, Rhizosphere Ecology and Biogeochemistry Group, University of Natural Resources and Life Sciences, Vienna
| | - Nele Witters
- Environmental Economics Research Group at the Centre for Environmental Sciences at Hasselt University
| | | | | | | | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology (LfULG), Germany
| | - Nele Weyens
- Centre for Environmental Sciences at Hasselt University
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40
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The influence of nickel on the bioremediation of multi-component contaminated tropical soil: microcosm and batch bioreactor studies. World J Microbiol Biotechnol 2015; 31:1127-35. [PMID: 25940327 DOI: 10.1007/s11274-015-1862-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
Abstract
Large petrochemical discharges are responsible for organic and inorganic pollutants in the environment. The purpose of this study was to evaluate the influence of nickel, one of the most abundant inorganic element in crude oil and the main component of hydrogen catalysts for oil refining, on the microbial community structure in artificially petroleum-contaminated microcosms and in solid phase bioreactor studies. In the presence of metals, the oil biodegradation in microcosms was significantly delayed during the first 7 days of operation. Also, increasing amounts of moisture generated a positive influence on the biodegradation processes. The oil concentration, exhibiting the most negative influence at the end of the treatment period. Molecular fingerprinting analyses (denaturing gradient gel electrophoresis--DGGE) indicated that the inclusion of nickel into the contaminated soil promoted direct changes to the microbial community structure. By the end of the experiments, the results of the total petroleum hydrocarbons removal in the bioreactor and the microcosm were similar, but reductions in the treatment times were observed with the bioreactor experiments. An analysis of the microbial community structure by DGGE using various markers showed distinct behaviors between two treatments containing high nickel concentrations. The main conclusion of this study was that Nickel promotes a significant delay in oil biodegradation, despite having only a minor effect over the microbial community.
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41
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Travar I, Kihl A, Kumpiene J. The release of As, Cr and Cu from contaminated soil stabilized with APC residues under landfill conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 151:1-10. [PMID: 25528268 DOI: 10.1016/j.jenvman.2014.11.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 11/27/2014] [Accepted: 11/30/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to investigate the stability of As, Cr and Cu in contaminated soil treated with air pollution control residues under landfill conditions. The influence of landfill gas and temperature on the release of trace elements from stabilized soil was simulated using a diffusion test. The air pollution control residues immobilized As through the precipitation of Ca-As minerals (calcium arsenate (Ca5H2(AsO4)3 × 5H2O), weilite (CaAsO4) and johnbaumite (Ca5(AsO4)3(OH)), incorporation of As into ettringite (Ca6Al2(SO4)3(OH)12 × 26H2O) and adsorption by calcite (CaCO3). The air pollution control residues generally showed a high resistance to pH reduction, indicating high buffer capacity and stability of immobilized As in a landfill over time. Generation of heat in a landfill might increase the release of trace elements. The release of As from stabilized soil was diffusion-controlled at 60 °C, while surface wash-off, dissolution, and depletion prevailed at 20 °C. The air pollution control residues from the incineration of municipal solid waste immobilized Cr, indicating its stability in a landfill. The treatment of soil with air pollution control residues was not effective in immobilization of Cu. Contaminated soils treated with air pollution control residues will probably have a low impact on overall leachate quality from a landfill.
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Affiliation(s)
- I Travar
- Division of Waste Science and Technology, Luleå University of Technology, SE-971 87 Luleå, Sweden; Ragn Sells AB, Box 952, 19129 Sollentuna, Sweden.
| | - A Kihl
- Ragn Sells AB, Box 952, 19129 Sollentuna, Sweden
| | - J Kumpiene
- Division of Waste Science and Technology, Luleå University of Technology, SE-971 87 Luleå, Sweden
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42
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Improvement of zeolites on solidification/stabilization of mercury-contaminated wastes in chemically bonded phosphate ceramics: stabilization effect and mechanism study. ASIA-PAC J CHEM ENG 2015. [DOI: 10.1002/apj.1865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Zhang S, Zhang X, Xiong Y, Wang G, Zheng N. Effective solidification/stabilisation of mercury-contaminated wastes using zeolites and chemically bonded phosphate ceramics. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2015; 33:183-190. [PMID: 25568090 DOI: 10.1177/0734242x14563376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, two kinds of zeolites materials (natural zeolite and thiol-functionalised zeolite) were added to the chemically bonded phosphate ceramic processes to treat mercury-contaminated wastes. Strong promotion effects of zeolites (natural zeolite and thiol-functionalised zeolite) on the stability of mercury in the wastes were obtained and these technologies showed promising advantages toward the traditional Portland cement process, i.e. using Portland cement as a solidification agent and natural or thiol-functionalised zeolite as a stabilisation agent. Not only is a high stabilisation efficiency (lowered the Toxicity Characteristic Leaching Procedure Hg by above 10%) obtained, but also a lower dosage of solidification (for thiol-functionalised zeolite as stabilisation agent, 0.5 g g(-1) and 0.7 g g(-1) for chemically bonded phosphate ceramic and Portland cement, respectively) and stabilisation agents (for natural zeolite as stabilisation agent, 0.35 g g(-1) and 0.4 g g(-1) for chemically bonded phosphate ceramic and Portland cement, respectively) were used compared with the Portland cement process. Treated by thiol-functionalised zeolite and chemically bonded phosphate ceramic under optimum parameters, the waste containing 1500 mg Hg kg(-1) passed the Toxicity Characteristic Leaching Procedure test. Moreover, stabilisation/solidification technology using natural zeolite and chemically bonded phosphate ceramic also passed the Toxicity Characteristic Leaching Procedure test (the mercury waste containing 625 mg Hg kg(-1)). Moreover, the presence of chloride and phosphate did not have a negative effect on the chemically bonded phosphate ceramic/thiol-functionalised zeolite treatment process; thus, showing potential for future application in treatment of 'difficult-to-manage' mercury-contaminated wastes or landfill disposal with high phosphate and chloride content.
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Affiliation(s)
- Shaoqing Zhang
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Xinyan Zhang
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People's Republic of China
| | - Ya Xiong
- Beijing Municipal Research Institute of Environmental Protection, Beijing, People's Republic of China
| | - Guoping Wang
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Na Zheng
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, People's Republic of China
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Xu J, Bravo AG, Lagerkvist A, Bertilsson S, Sjöblom R, Kumpiene J. Sources and remediation techniques for mercury contaminated soil. ENVIRONMENT INTERNATIONAL 2015; 74:42-53. [PMID: 25454219 DOI: 10.1016/j.envint.2014.09.007] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 09/12/2014] [Accepted: 09/16/2014] [Indexed: 05/04/2023]
Abstract
Mercury (Hg) in soils has increased by a factor of 3 to 10 in recent times mainly due to combustion of fossil fuels combined with long-range atmospheric transport processes. Other sources as chlor-alkali plants, gold mining and cement production can also be significant, at least locally. This paper summarizes the natural and anthropogenic sources that have contributed to the increase of Hg concentration in soil and reviews major remediation techniques and their applications to control soil Hg contamination. The focus is on soil washing, stabilisation/solidification, thermal treatment and biological techniques; but also the factors that influence Hg mobilisation in soil and therefore are crucial for evaluating and optimizing remediation techniques are discussed. Further research on bioremediation is encouraged and future study should focus on the implementation of different remediation techniques under field conditions.
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Affiliation(s)
- Jingying Xu
- Department of Ecology and Genetics, Limnology, University of Uppsala, Uppsala 75236, Sweden; Waste Science and Technology, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå 97187, Sweden
| | - Andrea Garcia Bravo
- Department of Ecology and Genetics, Limnology, University of Uppsala, Uppsala 75236, Sweden
| | - Anders Lagerkvist
- Waste Science and Technology, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå 97187, Sweden
| | - Stefan Bertilsson
- Department of Ecology and Genetics, Limnology, University of Uppsala, Uppsala 75236, Sweden
| | - Rolf Sjöblom
- Waste Science and Technology, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå 97187, Sweden
| | - Jurate Kumpiene
- Waste Science and Technology, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå 97187, Sweden
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45
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Temporal variations of accumulated cesium in natural soils after an uncharacteristic external exposure. Microchem J 2015. [DOI: 10.1016/j.microc.2014.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kumpiene J, Bert V, Dimitriou I, Eriksson J, Friesl-Hanl W, Galazka R, Herzig R, Janssen J, Kidd P, Mench M, Müller I, Neu S, Oustriere N, Puschenreiter M, Renella G, Roumier PH, Siebielec G, Vangronsveld J, Manier N. Selecting chemical and ecotoxicological test batteries for risk assessment of trace element-contaminated soils (phyto)managed by gentle remediation options (GRO). THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 496:510-522. [PMID: 25108253 DOI: 10.1016/j.scitotenv.2014.06.130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/21/2014] [Accepted: 06/29/2014] [Indexed: 05/26/2023]
Abstract
During the past decades a number of field trials with gentle remediation options (GRO) have been established on trace element (TE) contaminated sites throughout Europe. Each research group selects different methods to assess the remediation success making it difficult to compare efficacy between various sites and treatments. This study aimed at selecting a minimum risk assessment battery combining chemical and ecotoxicological assays for assessing and comparing the effectiveness of GRO implemented in seven European case studies. Two test batteries were pre-selected; a chemical one for quantifying TE exposure in untreated soils and GRO-managed soils and a biological one for characterizing soil functionality and ecotoxicity. Soil samples from field studies representing one of the main GROs (phytoextraction in Belgium, Sweden, Germany and Switzerland, aided phytoextraction in France, and aided phytostabilization or in situ stabilization/phytoexclusion in Poland, France and Austria) were collected and assessed using the selected test batteries. The best correlations were obtained between NH4NO3-extractable, followed by NaNO3-extractable TE and the ecotoxicological responses. Biometrical parameters and biomarkers of dwarf beans were the most responsive indicators for the soil treatments and changes in soil TE exposures. Plant growth was inhibited at the higher extractable TE concentrations, while plant stress enzyme activities increased with the higher TE extractability. Based on these results, a minimum risk assessment battery to compare/biomonitor the sites phytomanaged by GROs might consist of the NH4NO3 extraction and the bean Plantox test including the stress enzyme activities.
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Affiliation(s)
- Jurate Kumpiene
- Luleå University of Technology, Waste Science & Technology, SE-97187 Luleå, Sweden.
| | - Valérie Bert
- INERIS, Technologies and Sustainable and Clean Processes, Parc Technologique Alata, BP2, 60550 Verneuil en Halatte, France
| | - Ioannis Dimitriou
- Swedish University of Agriculture Sciences, Department of Crop Production Ecology, SE-750 07 Uppsala, Sweden
| | - Jan Eriksson
- Swedish University of Agriculture Sciences, Department of Soil and Environment, SE-750 07 Uppsala, Sweden
| | - Wolfgang Friesl-Hanl
- AIT Austrian Institute of Technology GmbH, Health and Environment Department, 3430 Tulln, Austria
| | - Rafal Galazka
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Rolf Herzig
- Phytotech Foundation and AGB, Quartiergasse 12, 3013 Bern, Switzerland
| | - Jolien Janssen
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Petra Kidd
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela 15706, Spain
| | - Michel Mench
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - Silke Neu
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - Nadège Oustriere
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Markus Puschenreiter
- University of Natural Resources and Life Sciences Vienna - BOKU, Department of Forest and Soil Sciences, 3430 Tulln, Austria
| | - Giancarlo Renella
- University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 28, I-50144 Florence, Italy
| | - Pierre-Hervé Roumier
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Grzegorz Siebielec
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Nicolas Manier
- INERIS, Expertise and Assays in Ecotoxicology, Parc Technologique Alata, BP2, 60550 Verneuil en Halatte, France
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Hseu ZY, Huang YT, Hsi HC. Effects of remediation train sequence on decontamination of heavy metal-contaminated soil containing mercury. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2014; 64:1013-1020. [PMID: 25282998 DOI: 10.1080/10962247.2014.917129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 04/12/2014] [Indexed: 06/03/2023]
Abstract
When a contaminated site contains pollutants including both nonvolatile metals and Hg, one single remediation technology may not satisfactorily remove all contaminants. Therefore, in this study, chemical extraction and thermal treatment were combined as a remediation train to remove heavy metals, including Hg, from contaminated soil. A 0.2 M solution of ethylenediamine tetraacetic acid (EDTA) was shown to be the most effective reagent for extraction of considerable amounts of Cu, Pb, and Zn (> 50%). Hg removal was ineffective using 0.2 M EDTA, but thermogravimetric analysis suggested that heating to 550 degrees C with a heating rate of 5 degrees C/min for a duration of 1 hr appeared to be an effective approach for Hg removal. With the employment of thermal treatment, up to 99% of Hg could be removed. However executing thermal treatment prior to chemical extraction reduced the effectiveness of the subsequent EDTA extraction because nonvolatile heavy metals were immobilized in soil aggregates after the 550 degrees C treatment. The remediation train of chemical extraction followed by thermal treatment appears to remediate soils that have been contaminated by many nonvolatile heavy metals and Hg. Implications: A remediation train conjoining two or more techniques has been initialized to remove multiple metals. Better understandings of the impacts of treatment sequences, namely, which technique should be employed first on the soil properties and the decontamination efficiency, are in high demand. This study provides a strategy to remove multiple heavy metals including Hg from a contaminated soil. The interactions between thermal treatment and chemical extraction on repartitioning of heavy metals was revealed. The obtained results could offer an integrating strategy to remediate the soil contaminated with both heavy metals and volatile contaminants.
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Bian R, Joseph S, Cui L, Pan G, Li L, Liu X, Zhang A, Rutlidge H, Wong S, Chia C, Marjo C, Gong B, Munroe P, Donne S. A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment. JOURNAL OF HAZARDOUS MATERIALS 2014; 272:121-8. [PMID: 24685528 DOI: 10.1016/j.jhazmat.2014.03.017] [Citation(s) in RCA: 290] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/17/2014] [Accepted: 03/07/2014] [Indexed: 05/20/2023]
Abstract
Heavy metal contamination in croplands has been a serious concern because of its high health risk through soil-food chain transfer. A field experiment was conducted in 2010-2012 in a contaminated rice paddy in southern China to determine if bioavailability of soil Cd and Pb could be reduced while grain yield was sustained over 3 years after a single soil amendment of wheat straw biochar. Contaminated biochar particles were separated from the biochar amended soil and microscopically analyzed to help determine where, and how, metals were immobilized with biochar. Biochar soil amendment (BSA) consistently and significantly increased soil pH, total organic carbon and decreased soil extractable Cd and Pb over the 3 year period. While rice plant tissues' Cd content was significantly reduced, depending on biochar application rate, reduction in plant Pb concentration was found only in root tissue. Analysis of the fresh and contaminated biochar particles indicated that Cd and Pb had probably been bonded with the mineral phases of Al, Fe and P on and around and inside the contaminated biochar particle. Immobilization of the Pb and Cd also occurred to cation exchange on the porous carbon structure.
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Affiliation(s)
- Rongjun Bian
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Stephen Joseph
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China; School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia; Discipline of Chemistry, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Liqiang Cui
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Genxing Pan
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China.
| | - Lianqing Li
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Xiaoyu Liu
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Afeng Zhang
- Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Helen Rutlidge
- Solid State and Elemental Analysis Unit, Mark Wainwright Analytical Centre, University of New South Wales, Kensington, NSW 2052, Australia
| | - Singwei Wong
- Electron Microscope Unit, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Chee Chia
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Chris Marjo
- Solid State and Elemental Analysis Unit, Mark Wainwright Analytical Centre, University of New South Wales, Kensington, NSW 2052, Australia
| | - Bin Gong
- Solid State and Elemental Analysis Unit, Mark Wainwright Analytical Centre, University of New South Wales, Kensington, NSW 2052, Australia
| | - Paul Munroe
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Scott Donne
- Discipline of Chemistry, University of Newcastle, Callaghan, NSW 2308, Australia
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Voglar D, Lestan D. Chelant soil-washing technology for metal-contaminated soil. ENVIRONMENTAL TECHNOLOGY 2014; 35:1389-1400. [PMID: 24701937 DOI: 10.1080/09593330.2013.869265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrate here, in a pilot-scale experiment, the feasibility of ethylenediaminetetraacetate (EDTA)based washing technology for soils contaminated with potentially toxic metals. Acid precipitation coupled to initial alkaline toxic metal removal and an electrochemical advanced oxidation process were used for average recovery of 76 +/- 2% of EDTA per batch and total recycle of water in a closed process loop. No waste water was generated; solid wastes were efficiently bitumen-stabilized before disposal. The technology embodiment, using conventional process equipment, such as a mixer for soil extraction, screen for soil/gravel separation, filter chamber presses for soil/liquid and recycled EDTA separation and soil rinsing, continuous centrifuge separator for removal of precipitated metals and electrolytic cells for process water cleansing, removed up to 72%, 25% and 66% of Pb, Zn and Cd from garden soil contaminated with up to 6960, 3797 and 32.6 mg kg(-1) of Pb, Zn and Cd, respectively, in nine 60kg soil batches. Concentrations of Pb and Zn remaining in the remediated soil and bioaccessible from the simulated human intestinal phase soil were reduced by 97% and 96% and were brought under the level of determination for Cd. In the most cost-effective operation mode, the material and energy costs of remediation amounted to 50.5 Euros ton(-1) soil and the total cost to 299 Euros ton(-1).
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50
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Jelusic M, Lestan D. Effect of EDTA washing of metal polluted garden soils. Part I: Toxicity hazards and impact on soil properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 475:132-141. [PMID: 24315027 DOI: 10.1016/j.scitotenv.2013.11.049] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 11/08/2013] [Accepted: 11/09/2013] [Indexed: 06/02/2023]
Abstract
We applied a multi-level approach assessing the quality, toxicity and functioning of Pb, Zn and Cd contaminated/remediated soil from a vegetable garden in Meza Valley, Slovenia. Contaminated soil was extracted with EDTA and placed into field experimental plots equipped with lysimeters. Soil properties were assessed by standard pedological analysis. Fractionation and leachability of toxic metals were analyzed by sequential extraction and TCLP and metal bioaccessibility by UBM tests. Soil respiration and enzyme activities were measured as indicators of soil functioning. Remediation reduced the metal burden by 80, 28 and 72% for Pb, Zn and Cd respectively, with a limited impact on soil pedology. Toxic metals associated with labile soil fractions were largely removed. No shifts between labile and residual fractions were observed during the seven months of the experiment. Initial metal leaching measured through lysimeters eventually ceased. However, remediation significantly diminished potential soil enzyme activity and no trends were observed of the remediated soil recovering its biological properties. Soil washing successfully removed available forms of Pb, Zn and Cd and thus lowered the human and environmental hazards of the remediated soil; however, remediation also extracted the trace elements essential for soil biota. In addition to reduced water holding capacity, soil health was not completely restored.
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Affiliation(s)
- Masa Jelusic
- Agronomy Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Domen Lestan
- Agronomy Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.
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