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Kirichkov MV, Polyakov VA, Shende SS, Minkina TM, Nevidomskaya DG, Wong MH, Bauer TV, Shuvaeva VA, Mandzhieva SS, Tsitsuashvili VS. Application of X-ray based modern instrumental techniques to determine the heavy metals in soils, minerals and organic media. CHEMOSPHERE 2024; 349:140782. [PMID: 38013028 DOI: 10.1016/j.chemosphere.2023.140782] [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: 06/26/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
To evaluate the environmental concerns associated with heavy metals (HMs) during their translocations in food chains, it is crucial to gather data on the types of HMs present in soils in order to ascertain their toxicity and potential to migrate. An overview of the findings from several physical techniques used to determine and identify the HMs, sediments, individual minerals, and organic components in contaminated agricultural and industrial soils, is provided in this review article. These studies cover a variety of X-ray-based analytical techniques, including most widely used ones like X-ray absorption near edge structure, extended X-ray absorption fine structure, X-ray diffraction, and less popular ones X-ray fluorescence, etc. When compared to techniques that rely on laboratory radiation sources, synchrotron radiation offers more precision and efficiency. These methods could pinpoint the primary mechanisms influencing the soil's ability to transport contaminants and track their subsequent migration up the food chain.
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Affiliation(s)
| | | | | | | | | | - Ming Hung Wong
- Southern Federal University, Rostov-on-Don, 344090, Russia; Consortium on Health, Environment, Education, and Research (CHEER), The Education University of Hong Kong, Hong Kong, China
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Manzoor M, Shafiq M, Gul I, Kamboh UR, Guan DX, Ali Alazba A, Tomforde S, Arshad M. Enhanced lead phytoextraction and soil health restoration through exogenous supply of organic ligands: Geochemical modeling". JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119435. [PMID: 37890401 DOI: 10.1016/j.jenvman.2023.119435] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/28/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023]
Abstract
Phytoremediation of lead (Pb) contaminated soil is a green technology to reduce Pb exposure and root exudates-derived organic acids play a vital role in this treatment process. In this study, Pb hyperaccumulator Pelargonium hortorum was chosen to investigate root-induced organic acid secretions and their subsequent role in Pb phytoextraction. In the first step, root exudation of P. hortorum was investigated in hydroponic experiments (0.2X Hoagland solution) under control and Pb stress conditions. Possible chemical interactions between Pb and the observed root exudates were then analyzed using Visual MINTEQ modeling. In the next step, the effects of the exogenous application of organic acids on Pb phytoextraction and soil enzymatic activities were studied in a pot experimental setup. Results indicated significant exudation of malic acid > citric acid > oxalic acid > tartaric acid in root exudates of P. hortorum under 50 mg L-1 Pb. Visual MINTEQ modeling results revealed that organic acids directly affect Pb dissolution in the nutrient solution by modulation of solution pH. Experimental results revealed that malic acid and citric acid significantly increased available Pb contents (7.2- and 6.7-folds) in the soil with 1500 mg kg-1 Pb contamination. Whereas, in shoot and root, the highest increase in Pb concentration was observed with citric acid (2.01-fold) and malic (3.75-fold) supplements, respectively. Overall, Pb uptake was notably higher when malic acid was applied (2.8-fold) compared to other organic acids, followed by citric acid (2.7-fold). In the case of soil enzymatic activities, oxalic acid significantly improved dehydrogenase, alkaline phosphatase, and microbial biomass by 1.6-, 1.4- and 1.3-folds, respectively. The organic acids were successful in reviving enzyme activity in Pb-contaminated soil, and might thus be used for long-term soil regeneration.
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Affiliation(s)
- Maria Manzoor
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan; Institute of Plant Nutrition and Soil Science, Christian-Albrechts-Universit, 24118, Kiel, Germany; College of Environmental and Resource Sciences, Zhejiang University, China.
| | - Muhammad Shafiq
- Department of Agricultural Engineering, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Iram Gul
- Department of Earth and Environmental Sciences, Hazara University, Mansehra, Pakistan
| | - Usman Rauf Kamboh
- The Intelligent System Group at Christian-Albrechts-Universit at zu Kiel, Germany
| | - Dong-Xing Guan
- College of Environmental and Resource Sciences, Zhejiang University, China
| | - Abdulrahman Ali Alazba
- Department of Agricultural Engineering, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Sven Tomforde
- The Intelligent System Group at Christian-Albrechts-Universit at zu Kiel, Germany
| | - Muhammad Arshad
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
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Yu X, Jiang N, Yang Y, Liu H, Gao X, Cheng L. Heavy metals remediation through bio-solidification: Potential application in environmental geotechnics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115305. [PMID: 37517309 DOI: 10.1016/j.ecoenv.2023.115305] [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: 02/23/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 08/01/2023]
Abstract
Heavy metals are pervasive pollutants found in water, soil, and solid wastes. Bio-solidification offers an environmentally friendly approach to immobilize heavy metal ions using two types of bacteria: urease-producing bacteria (UPB) and phosphatase-producing bacteria (PPB). UPB, exemplified by Sporosarcina pasteurii, secretes urease to hydrolyze urea and generate CO32- ions, while PPB, like Bacillus subtilis, produces alkaline phosphatase to hydrolyze organophosphate monoester (ROP) and produce PO43- ions. These ions react with heavy metal ions, effectively reducing their concentration by forming insoluble carbonate or phosphate precipitates. The success of bio-solidification is influenced by various factors, including substrate concentration, temperature, pH, and bacterial density. Optimal operational conditions can significantly enhance the remediation performance of heavy metals. UPB and PPB hold great potential for remediating heavy metal pollution in diverse contaminated areas such as tailings ponds, electroplating sewage, and garbage incineration plants. In conclusion, harnessing the power of these microbial methods can provide effective solutions for remediating heavy metal-induced pollution across a range of environmental conditions.
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Affiliation(s)
- Xiaoniu Yu
- Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189, China.
| | - Ningjun Jiang
- Institute of Geotechnical Engineering, Southeast University, Nanjing, Jiangsu 211189, China.
| | - Yang Yang
- School of Civil Engineering, Chongqing University, No. 174 Shazhengjie, Shapingba, Chongqing 400044, China.
| | - Haijun Liu
- School of Civil Engineering, Chongqing University, No. 174 Shazhengjie, Shapingba, Chongqing 400044, China.
| | - Xuecheng Gao
- School of Civil Engineering, Chongqing University; Chongqing University Industrial Technology Research Institute, Chongqing 400045, China.
| | - Liang Cheng
- School of Environmental and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China.
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Paes ÉDC, Veloso GV, de Castro Filho MN, Barroso SH, Fernandes-Filho EI, Fontes MPF, Soares EMB. Potential of plant species adapted to semi-arid conditions for phytoremediation of contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:131034. [PMID: 36827724 DOI: 10.1016/j.jhazmat.2023.131034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/30/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Physical and chemical remediation techniques used in contaminated areas are expensive and damaging to the soil structure. Biological alternatives, such as phytoremediation, are economical and applicable to large areas. The main limitation of phytoremediation is identifying plants that are both capable of stabilizing and/or absorbing metals from soil and adapted to edaphoclimatic conditions of the contaminated areas. The objective of this study is to evaluate the ability of plant species adapted to Brazilian semi-arid conditions to grow in soils contaminated with Pb. A greenhouse experiment was carried out in a 4 × 5 factorial: four plant species (M. oleifera, P. juliflora, A. peregrina, and U. ruziziensis) and five Pb concentrations in soil (0.0; 0.52; 1.05; 2.10, and 4.20 g kg-1). All species grew at all Pb levels, but only P. juliflora and A. peregrina did not exhibit significant reductions in most growth variables. U. ruziziensis, despite showing reductions in growth variables, was the species with the highest dry matter accumulation in both shoots and roots, in addition to accumulating higher amounts of Pb. We conclude that the species P. juliflora, A. peregrina and U. ruziziensis are more suitable for cultivation in soils containing high levels of Pb.
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Affiliation(s)
- Ésio de Castro Paes
- Department of Soil and Plant Nutrition, Federal University of Viçosa, Campus UFV, 36570-900 Viçosa, Brazil.
| | - Gustavo Vieira Veloso
- Department of Soil and Plant Nutrition, Federal University of Viçosa, Campus UFV, 36570-900 Viçosa, Brazil.
| | | | - Saulo Henrique Barroso
- Department of Soil and Plant Nutrition, Federal University of Viçosa, Campus UFV, 36570-900 Viçosa, Brazil.
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Nyarko F, Tack FMG, Mouazen AM. Potential of visible and near infrared spectroscopy coupled with machine learning for predicting soil metal concentrations at the regional scale. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 841:156582. [PMID: 35714741 DOI: 10.1016/j.scitotenv.2022.156582] [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: 08/27/2021] [Revised: 05/31/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Chemical analytical methods for metal analysis in soils are laborious, time-consuming and costly. This paper aims to evaluate the potential of short-range (SR) and full-range (FR) visible and infrared spectroscopy (vis-NIR) combined with linear and nonlinear calibration methods to estimate concentrations of nickel (Ni), cobalt (Co), cadmium (Cd), lead (Pb) and copper (Cu) in soils. A total of 435 soil samples were collected over agricultural sites, forest (7 %), pasture (5 %) and fallow land across a region in the northern part of Belgium. Generally, better predictions were obtained when using partial least squares regression (PLSR) and nonlinear calibration method [i.e., random forest (RF)] for processing of the spectral data, than when using support vector machine (SVM). FR generally outperformed SR and provided the best prediction results for Ni (R2p = 0.76), Co (R2p = 0.77), Cd (R2p = 0.64) and Pb (R2p = 0.65), when using PLSR and RF. SVM produced the best prediction result only for Pb (R2p = 0.57) using the SR spectra. The metals Ni, Co, Cd and Pb can be predicted successfully (good accuracy) from the FR vis-NIR spectra using PLSR for Co, and RF for Ni, Cd, Pb and Cu. Compared to the FR spectrophotometer, improvement in accuracy was obtained for Cd and Co, using the SR spectra when combined with PLSR and RF, respectively. It is concluded that the SR spectrometer can be used successfully for the prediction of Co with RF (R2p = 0.70), while it best predicted Cd with PLSR with an R2p value of 0.67, which is of value for regional survey.
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Affiliation(s)
- Felix Nyarko
- Department of Environment, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Filip M G Tack
- Department of Green Chemistry and Technology, Ghent University, Frieda Saeysstraat 1, 9052 Gent, Belgium
| | - Abdul M Mouazen
- Department of Environment, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
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Rashid MS, Liu G, Yousaf B, Hamid Y, Rehman A, Munir MAM, Arif M, Ahmed R, Song Y. Assessing the influence of sewage sludge and derived-biochar in immobilization and transformation of heavy metals in polluted soil: Impact on intracellular free radical formation in maize. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 309:119768. [PMID: 35841993 DOI: 10.1016/j.envpol.2022.119768] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/02/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
As one of the most common ways to get rid of municipal waste, landfill leachate, waste with complicated compositions and high levels of contaminants, has become a significant threat to the world's environment. Here, the impact of sewage sludge (SS) and derived-biochar (SSB) amendments on the immobilization and potential mobility of heavy metals in a contaminated soil-plant system was investigated. The sequential fractionation findings showed that using SS-2%, SSB-2%, and SSBC-1% reduced the potential mobility of heavy metals while increasing the residual fraction in polluted soils. The translocation and bioconcentration factors showed that heavy metals were slightly transferred into shoots from roots and lowered accumulation in roots from contaminated soils. Fourier transform infrared (FTIR) and X-ray photoelectron spectrum (XPS) comprehensive characterization results indicated the significant role of applied amendments for heavy metals transformation from the exchangeable-soluble fractions to the least available form by lowering their mobility to confirm the adsorption-based complexes, which results in the surface adsorption of heavy metals with functional groups. The electron paramagnetic resonance (EPR) results indicated the dominance of reactive oxygen species (ROS) in the intracellular formation of hydroxyl radicals (•OH) in maize plant roots and shoots. ROS (•OH) generation plays a critical influence in the interaction between the physiological processes of plants and heavy metals. Moreover, all the amendments increased maize growth and biomass production. Our study suggests that alone and combined application of SS and SSB have great potential to remediate heavy metals contaminated soil for environmental sustainability.
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Affiliation(s)
- Muhammad Saqib Rashid
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China
| | - Yasir Hamid
- 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
| | - Abdul Rehman
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Mehr Ahmed Mujtaba Munir
- 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
| | - Muhammad Arif
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; Department of Soil and Environmental Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Rafay Ahmed
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Yu Song
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, PR China
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Wang K, He J, Zhao N, Zhao Y, Qi F, Fan F, Wang Y. Effects of melatonin on growth and antioxidant capacity of naked oat ( Avena nuda L) seedlings under lead stress. PeerJ 2022. [DOI: 10.7717/peerj.13978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Melatonin (MT) plays an important role in plant response to abiotic stress. In recent years, lead (Pb) pollution has seriously affected the living environment of plants. In this study, we applied two different concentrations of MT to naked oat seedlings under Pb stress to explore the effect of MT on naked oat seedlings under Pb pollution. The results showed that Pb stress seriously inhibited the growth and development of naked oat seedlings, which was alleviated by MT. MT could increase the soluble protein content and decrease the proline content of naked oat seedlings to maintain the osmotic balance of naked oat seedlings. The application of MT could accelerate the removal of reactive oxygen species (ROS) and improve the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), so as to maintain the redox balance in naked oat seedlings. Exogenous melatonin could significantly increase the chlorophyll content of naked oat seedlings under Pb treatment, so as to improve the photosynthesis efficiency of naked oat seedlings. MT could also remarkably up regulate the expression of the genes of LOX, POX and Asmap1, and affect the expression of transcription factors NAC and WRKY1. It might regulate the expression of downstream genes through MAPKs pathways and TFs to improve the Pb tolerance of naked oat seedlings. These results proved that MT could significantly promote the growth and development of naked oats seedlings under Pb stress, which is expected to be applied in agricultural production practice.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Jinjin He
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Ningbo Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Yajing Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Fangbing Qi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Fenggui Fan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
| | - Yingjuan Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xian, China
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