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Qu T, Ma Y, Yun M, Zhao C. Transcriptome Analysis Revealed the Possible Reasons for the Change of Ni Resistance in Rhus typhina after Spraying Melatonin. PLANTS (BASEL, SWITZERLAND) 2024; 13:1287. [PMID: 38794358 PMCID: PMC11126081 DOI: 10.3390/plants13101287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/04/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024]
Abstract
Melatonin (MT) plays an important role in alleviating the stress of soil heavy metal pollution on plants. However, its ability to improve the tolerance of Rhus typhina to Ni stress and its mechanism of action are still unclear. Therefore, MT (0, 50, 100, and 200 μmol·L-1) was sprayed on the leaf surface of R. typhina seedlings under Ni (0 and 250 mg·kg-1) stress to study the differences in growth, physiology, and gene expression. The results showed that exogenous MT could improve the ability of R. typhina to resist Ni stress by inhibiting the degradation of chlorophyll and carotenoid, enhancing photosynthesis, and augmenting the activity of antioxidant enzymes. Moreover, 100 μmol·L-1 MT could increase the Ni concentration in R. typhina seedlings and reduce the translocation factor. Transcriptome analysis showed that MT mainly regulated the expression of related genes in plant hormone signal transduction, starch and sucrose metabolism, and various amino acid metabolism pathways. This study combined physiological and transcriptomic analysis to reveal the molecular mechanism of MT enhancing Ni resistance in R. typhina, and provides a new direction for expanding its application in phytoremediation.
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Affiliation(s)
| | | | | | - Chunli Zhao
- College of Forestry and Grassland, Jilin Agricultural University, Changchun 130118, China; (T.Q.); (Y.M.); (M.Y.)
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2
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Lu Q, Xu Z, Chen Z, Qiu G. Effects of foliar application of Zn combined with organic matters on Cd accumulation and its chemical forms in rice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:25182-25191. [PMID: 38466386 DOI: 10.1007/s11356-024-32808-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/03/2024] [Indexed: 03/13/2024]
Abstract
Rice consumption is a key Cd exposure pathway, which poses a health risk to humans. Reducing cadmium (Cd) concentrations in rice remains challenging. In this study, a pot experiment was conducted to examine the effects of foliar spray of Zn combined with organic matters (including Zn-lysine (Zn-Lys), Zn-fulvic acid (Zn-FA), Zn-amino acid (Zn-AA), and Zn combined with glutathione (Zn + GSH)) on Cd accumulation in rice grains. Compared with the control group, all treatment groups exhibited reduced Cd concentration in rice grains, while improving plant growth, and reducing Cd transport from other tissues to the grains. Zn-FA was found to be the most effective fertilizer, which considerably reduced Cd concentrations in grains from 0.77 ± 0.068 to 0.14 ± 0.021 mg/kg and yielded reductions of up to 81%, which is within the Chinese food maximum tolerable limit of 0.2 mg/kg. Furthermore, the analysis of the chemical forms of Cd of rice tissues indicated that the treatment groups had increased proportions of integrated with pectates and protein in the stems. Except for the group treated with Zn-Lys spray, the percentages of undissolved Cd phosphate in the leaves were increased in all treatment groups, which reduced Cd toxicity to rice plants. The foliar application of Zn combined with organic matters may be a promising strategy to decrease Cd concentration in rice grains cultivated in severely Cd-contaminated agricultural soil, particularly in the karst area in southwest China with limited available cultivable agricultural land.
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Affiliation(s)
- Qinhui Lu
- School of Public Health, The Key Laboratory of Environment Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Zhidong Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Zhuo Chen
- School of Chemistry and Materials Science, Guizhou Normal University, Guiyang, 550001, China
| | - Guangle Qiu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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3
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Wang F, Chen Y, Zheng J, Yang C, Li L, Li R, Shi M, Li Z. Preparation of potential organic fertilizer rich in γ-polyglutamic acid via microbial fermentation using brewer's spent grain as basic substrate. BIORESOURCE TECHNOLOGY 2024; 394:130216. [PMID: 38122994 DOI: 10.1016/j.biortech.2023.130216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Brewer's spent grain (BSG) is a main byproduct of the beer industry. BSG is rich in a variety of nutrients, and the search for its effective, high-value utilization is ongoing. Environmental probiotic factor γ-PGA was produced by fermenting Bacillus subtilis with BSG substrate and the fermenting grain components were analyzed. The γ-PGA yield reached 31.58 ± 0.21 g/kg of BSG. Gas chromatography-mass spectrometry and non-targeted metabolomics analyses revealed 73 new volatile substances in the fermenting grains. Furthermore, 2,376 metabolites were upregulated after fermentation and several components were beneficial for plant growth and development (such as ectoine, acetyl eugenol, L-phenylalanine, niacin, isoprene, pantothenic acid, dopamine, glycine, proline, jasmonic acid, etc). These results show that it is possible to synthesize adequate amounts of γ-PGA for use as a functional fertilizer.
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Affiliation(s)
- Fengqing Wang
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Yanmei Chen
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Jia Zheng
- Wuliangye Yibin Co., Ltd., Yibin, Sichuan 644000, China
| | - Can Yang
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Li Li
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Rong Li
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Meilin Shi
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China
| | - Zhongxuan Li
- College of Biotechnology, Sichuan University of Science and Engineering, Yibin 644000, China.
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4
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Carpintero M, Marcet I, Zornoza M, Rendueles M, Díaz M. Effect of Birch Sap as Solvent and Source of Bioactive Compounds in Casein and Gelatine Films. MEMBRANES 2023; 13:786. [PMID: 37755208 PMCID: PMC10536005 DOI: 10.3390/membranes13090786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/28/2023]
Abstract
Birch sap consists of a natural water-based solution with valuable compounds such as minerals, sugars, organic acids and phenolic compounds that can be used advantageously in the preparation of edible films. In this study, gelatine- and casein-based films were prepared using birch sap as biopolymer solvent and source of bioactive compounds with the aim of developing new bioactive materials for food packaging. The physical, mechanical, barrier, antioxidant and iron-chelating properties of the obtained films were investigated. Birch sap enhanced the mechanical properties of the films by increasing puncture strength and flexibility, as well as their ultraviolet-visible light barrier properties. In addition, the presence of bioactive compounds endowed the birch sap films with an antioxidant capacity of almost 90% and an iron-chelating capacity of 40-50% with respect to the control films. Finally, to test these films as food packaging material, a photosensitive curcumin solution was packed and exposed to ultraviolet light. Tested films were able to protect curcumin against photodegradation, and the presence of bioactive compounds inside the birch-sap-enriched materials offered an additional 10% photoprotective effect compared to control films. Results showed the potential of birch sap as an environmentally friendly biopolymer solvent and plasticizer that can improve the mechanical and photoprotective properties of the prepared materials.
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Affiliation(s)
| | | | | | - Manuel Rendueles
- Department of Chemical and Environmental Engineering, University of Oviedo, C/Julian Clavería 8, 33006 Oviedo, Spain; (M.C.); (I.M.); (M.D.)
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5
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Daurov D, Zhambakin K, Shamekova M. Phytoremediation as a way to clean technogenically polluted areas of Kazakhstan. BRAZ J BIOL 2023; 83:e271684. [PMID: 37222372 DOI: 10.1590/1519-6984.271684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/23/2023] [Indexed: 05/25/2023] Open
Abstract
One of the most serious problems worldwide is heavy metal (HM) pollution. HMs can have a toxic effect on human health and thus cause serious diseases. To date, several methods have been used to clean environments contaminated by HMs, but most of them are expensive, and it is difficult to achieve the desired result. Phytoremediation is currently an effective and affordable processing solution used to clean and remove HMs from the environment. This review article discusses in detail the technology of phytoremediation and mechanisms of HM absorption. In addition, methods are described using genetic engineering of various plants to enhance the resistance and accumulation of HMs. Thus, phytoremediation technology can become an additional aid to traditional methods of purification.
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Affiliation(s)
- D Daurov
- Institute of Plant Biology and Biotechnology, Department of Breeding and Biotechnology, Almaty, Kazakhstan
- Kazakh National Agrarian Research University, Almaty, Kazakhstan
| | - K Zhambakin
- Institute of Plant Biology and Biotechnology, Department of Breeding and Biotechnology, Almaty, Kazakhstan
| | - M Shamekova
- Institute of Plant Biology and Biotechnology, Department of Breeding and Biotechnology, Almaty, Kazakhstan
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6
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Macchia A, Colasanti IA, Rivaroli L, Favero G, de Caro T, Pantoja Munoz L, Campanella L, La Russa MF. Natural based products for cleaning copper and copper alloys artefacts. Nat Prod Res 2023; 37:1177-1184. [PMID: 34753376 DOI: 10.1080/14786419.2021.2000408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Copper alloys objects can deteriorate their conservation state through irreversible corrosion. Since in the cultural heritage field every artefact is unique and any loss irreplaceable, solutions for conservation are needed. Hence, there is the necessity to stop the corrosion process with a suitable cleaning and conservation process to avoid further degradation processes without changing its morphological aspect. Chelating solutions are commonly used in chemical cleaning, mainly sodium salts of ethylenediaminetetraacetic acid (EDTA). However, it is resistant to water purification procedures and is not biodegradable. The goal of this study was to see if applying an ecologically friendly chelating agent as an alternative to EDTA cleaning procedures for cultural heritage was suitable. In this study were chosen six natural-based chelators that could be a new green non-toxic alternative to EDTA in corrosion-inhibiting properties. They were tested for cleaning copper artefacts exposed to atmospheric environment in polluted areas. The study considered four amino acids, a glucoheptonate (CSA) and an industrial green chelator (GLDA). The effectiveness was tested on corrosion copper compounds and on laboratory corroded copper sheets. Finally, the cleaning efficacy was tested on four Roman coins and a modern copper painting. To define the cleaning efficacy, surface analytical investigations have been carried out by means ICP-OES, UV-VIS, µ-Raman, spectro-colorimetry, XRD and FTIR. Among the amino acids, alanine was the most effective, showing an unaltered noble patina and a good effective copper recovery from corrosion patinas.
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Affiliation(s)
| | - Irene Angela Colasanti
- Science and Technology for the Conservation of Cultural Heritage, Sapienza University of Rome, Rome, Italy
| | | | - Gabriele Favero
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Tilde de Caro
- CNRM-ISMN RM1-Montelibretti Research Area, Monterotondo, Italy
| | - Leonardo Pantoja Munoz
- Department of Natural Sciences, Middlesex University London, Hendon, London, Regno Unito
| | - Luigi Campanella
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
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7
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Huang Y, Li B, Chen H, Li J, Xu J, Li X. Gamma-Aminobutyric Acid Enhances Cadmium Phytoextraction by Coreopsis grandiflora by Remodeling the Rhizospheric Environment. PLANTS (BASEL, SWITZERLAND) 2023; 12:1484. [PMID: 37050110 PMCID: PMC10096890 DOI: 10.3390/plants12071484] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Gamma-aminobutyric acid (GABA) significantly affects plant responses to heavy metals in hydroponics or culture media, but its corresponding effects in plant-soil systems remain unknown. In this study, different GABA dosages (0-8 g kg-1) were added to the rhizosphere of Coreopsis grandiflora grown in Cd-contaminated soils. Cd accumulation in the shoots of C. grandiflora was enhanced by 38.9-159.5% by GABA in a dose-dependent approach because of accelerated Cd absorption and transport. The increase in exchangeable Cd transformed from Fe-Mn oxide and carbonate-bound Cd, which may be mainly driven by decreased soil pH rather than GABA itself, could be a determining factor responsible for this phenomenon. The N, P, and K availability was affected by multiple factors under GABA treatment, which may regulate Cd accommodation and accumulation in C. grandiflora. The rhizospheric environment dynamics remodeled the bacterial community composition, resulting in a decline in overall bacterial diversity and richness. However, several important plant growth-promoting rhizobacteria, especially Pseudomonas and Sphingomonas, were recruited under GABA treatment to assist Cd phytoextraction in C. grandiflora. This study reveals that GABA as a soil amendment remodels the rhizospheric environment (e.g., soil pH and rhizobacteria) to enhance Cd phytoextraction in plant-soil systems.
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Affiliation(s)
- Yingqi Huang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | - Boqun Li
- Science and Technology Information Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Huafang Chen
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | - Jingxian Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | - Jianchu Xu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | - Xiong Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
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8
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Deng Y, Wang S, Beadham I, Gao X, Ji M, Wang G, Zhang C, Ruan W. Effect of Soil Washing with an Amino-Acid-Derived Ionic Liquid on the Properties of Cd-Contaminated Paddy Soil. TOXICS 2023; 11:288. [PMID: 36977053 PMCID: PMC10054802 DOI: 10.3390/toxics11030288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
To reduce contamination levels in Cd-contaminated paddy soil while retaining soil characteristics, we have studied the Cd-removing ability of 15 different amino acid-based ionic liquids, which are considered to be green solvents, as soil washing agents and their impact on soil. The results indicated that the glycine hydrochloride ([Gly][Cl]) removed the most Cd, and under optimized conditions could remove 82.2% of the total Cd. Encouragingly, the morphology of the soil had not been significantly changed by the washing process. After the soil was rinsed twice with water and the pH was adjusted to 6.2 by adding Ca(OH)2, the germination index of the rice increased by 7.5%. The growth of the rice was also stimulated, with lengths and weights of the rice plants increasing by 56% and 32%, respectively, after two weeks. These experiments demonstrate that amino-acid-derived ionic liquids can be promising soil-washing agents of Cd-contaminated paddy soil.
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Affiliation(s)
- Yun Deng
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Sheng Wang
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Ian Beadham
- School of Pharmacy and Chemistry, Kingston University, Kingston upon Thames KT1 2EE, UK
| | - Xin Gao
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Mengmeng Ji
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Guang Wang
- National Key Laboratory of Water Environment Simulation and Pollution Control, South China Institute of Environment Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou 510665, China
| | - Changbo Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Wenquan Ruan
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
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9
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Smječanin N, Nuhanović M, Sulejmanović J, Mašić E, Sher F. Highly effective sustainable membrane based cyanobacteria for uranium uptake from aqueous environment. CHEMOSPHERE 2023; 313:137488. [PMID: 36528157 DOI: 10.1016/j.chemosphere.2022.137488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/27/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Wastewater from industrial process of uranium ore mining contains a large amount of this radioactive pollutant. Regarding the advantages of biosorption, it was found that varieties of biomasses such as agricultural waste, algae and fungi are effective for uranium removal. However, there is limited research on cyanobacteria, therefore, cyanobacteria, Anagnostidinema amphibium (CAA) was investigated by batch method for the first time for biosorption of uranium (VI). Optimization of biosorption parameters showed that maximum removal efficiency of 92.91% was reached at pH range of 9-11 with 50 mg of cyanobacteria to 100 mg/L U(VI) initial concentration, at 25 °C within 40 min. Used biosorbent exhibited very good selectivity for U(VI) ions and reusability in IV sorption/desorption cycles. Characterization of CAA surface was performed by FTIR, EDS, EDXRF and SEM analysis and it has shown various functional groups (CONH, COOH, OH, PO alkyl group) and that it is very rich in elements such as iron, potassium and calcium. In binary systems, contained of U(VI) and selected ions, CAA exhibits very good selectivity towards U(VI) ions. Kinetic data revealed the best accordance of experimental data with the pseudo-second-order model and isotherms data agreed with Freundlich model. Thermodynamic data implied that U(VI) biosorption process by A. amphibium exhibited spontaneity and modelling of the investigated process showed that the adsorption of uranium ions occurs mainly via peptidoglycan carboxyl groups. Overall results show that these cyanobacteria with a maximum sorption capacity of 324.94 mg/g have great potential for the processing of wastewater polluted with uranium (VI).
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Affiliation(s)
- Narcisa Smječanin
- Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, 71000, Bosnia and Herzegovina; International Society of Engineering Science and Technology, Nottingham, United Kingdom
| | - Mirza Nuhanović
- Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, 71000, Bosnia and Herzegovina
| | - Jasmina Sulejmanović
- Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, 71000, Bosnia and Herzegovina; International Society of Engineering Science and Technology, Nottingham, United Kingdom
| | - Ermin Mašić
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, 71000, Bosnia and Herzegovina
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom.
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10
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Xu J, Xing Y, Wang J, Yang Y, Ye C, Sun R. Effect of poly-γ-glutamic acid on the phytoremediation of ramie (Boehmeria nivea L.) in the Hg-contaminated soil. CHEMOSPHERE 2023; 312:137280. [PMID: 36403812 DOI: 10.1016/j.chemosphere.2022.137280] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/26/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Farmlands around the Hg mining areas have suffered from severe Hg contamination issues, triggering a phenomenon of high Hg content in crops, and subsequently threatening human health. In this study, ramie (Boehmeria nivea L.) assisted with poly-γ-glutamic acid (γ-PGA) was employed to remediate the Hg-contaminated soil through incubation experiments. After the soil was amended with γ-PGA, the leaf Hg content increased by 4.4-fold, and the translocation factor value even reached 3.5, indicating that γ-PGA could dramatically enhance the translocation of Hg from root and stem to leaf. γ-PGA could induce the transformation of potentially available Hg to available fractions, resulting in the soil Hg being more bioavailable. Batch trials verified that γ-PGA could mask the adsorption function of Hg ions by soil organic matter, significantly stimulating the desorption of Hg ions from the soil. As a result, the soil Hg would transfer to the aqueous phase and be assimilated by the root of ramie more easily and effectively. The γ-PGA chelated Hg is hydrophilic and has a high affinity with -SH and -S-; thereby, it can easily stride over the Casparian strip, enter the vessel, be translocated upwards, be sequestered in the tissues of leaf, and be incorporated irreversibly. This study can provide a new method for the remediation of Hg-contaminated soil.
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Affiliation(s)
- Jing Xu
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Ying Xing
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Jun Wang
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Yang Yang
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Cai Ye
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Rongguo Sun
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China.
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11
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Narayanasamy R, Thiyagarajan C, Pillai MP, Muthunalliappan M, Subburamu K, Subramanian M. Organic acid and amino acid coated multi-nutrient fertilizer granules (MNFG): synthesis and characterization. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04596-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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12
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Li X, Tian L, Li B, Chen H, Zhao G, Qin X, Liu Y, Yang Y, Xu J. Polyaspartic acid enhances the Cd phytoextraction efficiency of Bidens pilosa by remolding the rhizospheric environment and reprogramming plant metabolism. CHEMOSPHERE 2022; 307:136068. [PMID: 35985384 DOI: 10.1016/j.chemosphere.2022.136068] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/17/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
The green soil chelator polyaspartic acid (PASP) can enhance heavy metal phytoextraction efficiency, but the potential mechanisms are not clearly understood from the whole soil-plant system. In this study, we explored the effects and potential mechanisms of PASP addition in soils on plant growth and cadmium (Cd) uptake in the Cd hyperaccumulator Bidens pilosa by analysing variations in chemical elements, rhizospheric microbial community, and plant metabolomics. The results showed that PASP significantly promoted the biomass yield and Cd concentration in B. pilosa, leading to an increase in the total accumulated Cd by 46.4% and 76.4% in shoots and 124.7% and 197.3% in roots under 3 and 6 mg kg-1 PASP addition, respectively. The improved soil-available nutrients and enriched plant growth-promoting rhizobacteria (e.g., Sphingopyxis, Sphingomonas, Cupriavidus, Achromobacter, Nocardioides, and Rhizobium) were probably responsible for the enhanced plant growth after PASP addition. The increase in Cd uptake by plants could be due to the improved rhizosphere-available Cd, which was directly activated by PASP and affected by the induced rhizobacteria involved in immobilizing/mobilizing Cd (e.g., Sphingomonas, Cupriavidus, Achromobacter, and Rhizobium). Notably, PASP and/or these potassium (K)-solubilizing rhizobacteria (i.e., Sphingomonas, Cupriavidus, and Rhizobium) highly activated rhizosphere-available K to enhance plant growth and Cd uptake in B. pilosa. Plant physiological and metabolomic results indicated that multiple processes involving antioxidant enzymes, amino acids, organic acids, and lipids contributed to Cd detoxification in B. pilosa. This study provides novel insights into understanding how soil chelators drive heavy metal transfer in soil-plant systems.
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Affiliation(s)
- Xiong Li
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Liyan Tian
- School of Energy and Environment Science, Yunnan Normal University, Kunming, 650500, China
| | - Boqun Li
- Science and Technology Information Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Huafang Chen
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Gaojuan Zhao
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiangshi Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yuanyuan Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yongping Yang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Xishuangbanna, 666303, China.
| | - Jianchu Xu
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
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Effects of Exogenous L-Asparagine on Poplar Biomass Partitioning and Root Morphology. Int J Mol Sci 2022; 23:ijms232113126. [DOI: 10.3390/ijms232113126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/26/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
L-Asparagine (Asn) has been regarded as one of the most economical molecules for nitrogen (N) storage and transport in plants due to its relatively high N-to-carbon (C) ratio (2:4) and stability. Although its internal function has been addressed, the biological role of exogenous Asn in plants remains elusive. In this study, different concentrations (0.5, 1, 2, or 5 mM) of Asn were added to the N-deficient hydroponic solution for poplar ‘Nanlin895’. Morphometric analyses showed that poplar height, biomass, and photosynthesis activities were significantly promoted by Asn treatment compared with the N-free control. Moreover, the amino acid content, total N and C content, and nitrate and ammonia content were dramatically altered by Asn treatment. Moreover, exogenous Asn elicited root growth inhibition, accompanied by complex changes in the transcriptional pattern of genes and activities of enzymes associated with N and C metabolism. Combined with the plant phenotype and the physiological and biochemical indexes, our data suggest that poplar is competent to take up and utilize exogenous Asn dose-dependently. It provides valuable information and insight on how different forms of N and concentrations of Asn influence poplar root and shoot growth and function, and roles of Asn engaged in protein homeostasis regulation.
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14
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Han M, Xu M, Su T, Wang S, Wu L, Feng J, Ding C. Transcriptome Analysis Reveals Critical Genes and Pathways in Carbon Metabolism and Ribosome Biogenesis in Poplar Fertilized with Glutamine. Int J Mol Sci 2022; 23:ijms23179998. [PMID: 36077396 PMCID: PMC9456319 DOI: 10.3390/ijms23179998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Exogenous Gln as a single N source has been shown to exert similar roles to the inorganic N in poplar 'Nanlin895' in terms of growth performance, yet the underlying molecular mechanism remains unclear. Herein, transcriptome analyses of both shoots (L) and roots (R) of poplar 'Nanlin895' fertilized with Gln (G) or the inorganic N (control, C) were performed. Compared with the control, 3109 differentially expressed genes (DEGs) and 5071 DEGs were detected in the GL and GR libraries, respectively. In the shoots, Gln treatment resulted in downregulation of a large number of ribosomal genes but significant induction of many starch and sucrose metabolism genes, demonstrating that poplars tend to distribute more energy to sugar metabolism rather than ribosome biosynthesis when fertilized with Gln-N. By contrast, in the roots, most of the DEGs were annotated to carbon metabolism, glycolysis/gluconeogenesis and phenylpropanoid biosynthesis, suggesting that apart from N metabolism, exogenous Gln has an important role in regulating the redistribution of carbon resources and secondary metabolites. Therefore, it can be proposed that the promotion impact of Gln on poplar growth and photosynthesis may result from the improvement of both carbon and N allocation, accompanied by an efficient energy switch for growth and stress responses.
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Affiliation(s)
- Mei Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Mingyue Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Tao Su
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
- Key Laboratory of State Forestry Administration on Subtropical Forest Biodiversity Conservation, Nanjing Forestry University, Nanjing 210037, China
- Correspondence: (T.S.); (C.D.); Tel.: +86-1589-598-3381 (T.S.)
| | - Shizhen Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Liangdan Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Junhu Feng
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Changjun Ding
- Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
- Correspondence: (T.S.); (C.D.); Tel.: +86-1589-598-3381 (T.S.)
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15
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Chelating Extractants for Metals. METALS 2022. [DOI: 10.3390/met12081275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
In the present review, works on the classes of chelating extractants for metals, compounds with several amide and carboxyl groups, azomethines, oximes, macrocyclic compounds (crown ethers and calixarenes), phenanthroline derivatives, and others are systematized. This review focuses on the efficiency and selectivity of the extractants in the recovery of metals from industrial wastewater, soil, spent raw materials, and the separation of metal mixtures. As a result of this study, it was found that over the past seven years, the largest number of works has been devoted to the extraction of heavy metals with amino acids (16 articles), azomethines and oximes (12 articles), lanthanids with amide compounds (15 articles), lanthanides and actinides with phenanthroline derivatives (7 articles), and noble metals with calixarenes (4 articles). Analysis of the literature showed that amino acids are especially effective for extracting heavy metals from the soil; thiodiglycolamides and aminocalixarenes for extracting noble metals from industrial waste; amide compounds, azomethines, oximes, and phenanthroline derivatives for extracting actinides; amide compounds for extracting lanthanides; crown ethers for extracting radioactive strontium, rhenium and technetium. The most studied parameters of extraction processes in the reviewed articles were the distribution ratios and separation factors. Based on the reviewed articles, it follows that chelate polydentate compounds are more efficient compounds for the extraction of metals from secondary resources compared to monodentate compounds.
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16
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Xu M, Liu M, Si L, Ma Q, Sun T, Wang J, Chen K, Wang X, Wu L. Spraying high concentrations of chelated zinc enhances zinc biofortification in wheat grain. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3590-3598. [PMID: 34862638 DOI: 10.1002/jsfa.11705] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/11/2021] [Accepted: 12/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Foliar application of highly concentrated ZnSO4 fertilizer improves Zn biofortification in wheat grains. However, excess ZnSO4 ·7H2 O concentration (≥5 g kg-1 , w v-1 ) has been associated with leaf burn and yield loss, necessitating Zn sources with a high threshold concentration. The aim of this study, based on a 2 year field experiment conducted on wheat cultivated in acidic and alkaline soil, was to identify a suitable Zn formulation with a high Zn concentration or efficient adjuvant to achieve optimal Zn biofortification levels without compromising agronomic performance. RESULTS There was a continued increase in the Zn concentration in wheat grains and a decrease in grain yield with an increase in the concentration of the Zn foliar sprays in both soil types examined. Wheats treated with chelated Zn foliar sprays - Zn glycine chelate (ZnGly) and Zn-ethylenediaminetetraacetic acid (ZnEDTA) - had less foliar injury than those treated with unchelated Zn fertilizers. Furthermore, irrespective of wheat cultivars and soil types, ZnEDTA applied to wheat at a concentration of 10 g kg-1 achieved the highest grain Zn concentration without negatively affecting the wheat performance. Adjuvant type and concentration caused no significant variation in grain Zn concentration. CONCLUSION Overall, without foliar burn, wheat treated with 10 g kg-1 ZnEDTA foliar spray had the best performance with regard to grain Zn concentration and grain yield, which could have considerable implications for Zn biofortification of wheat grain. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Meng Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Mengjiao Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Linlin Si
- Institute of Environment and Resource & Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Qingxu Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Tao Sun
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jun Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Kaijun Chen
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xiangjie Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Lianghuan Wu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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17
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Liu X, Wu M, Li C, Yu P, Feng S, Li Y, Zhang Q. Interaction Structure and Affinity of Zwitterionic Amino Acids with Important Metal Cations (Cd 2+, Cu 2+, Fe 3+, Hg 2+, Mn 2+, Ni 2+ and Zn 2+) in Aqueous Solution: A Theoretical Study. Molecules 2022; 27:molecules27082407. [PMID: 35458605 PMCID: PMC9028192 DOI: 10.3390/molecules27082407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 01/25/2023] Open
Abstract
Heavy metals are non-biodegradable and carcinogenic pollutants with great bio-accumulation potential. Their ubiquitous occurrence in water and soils has caused serious environmental concerns. Effective strategies that can eliminate the heavy metal pollution are urgently needed. Here the adsorption potential of seven heavy metal cations (Cd2+, Cu2+, Fe3+, Hg2+, Mn2+, Ni2+ and Zn2+) with 20 amino acids was systematically investigated with Density Functional Theory method. The binding energies calculated at B3LYP-D3/def2TZVP level showed that the contribution order of amino acid side chains to the binding affinity was carboxyl > benzene ring > hydroxyl > sulfhydryl > amino group. The affinity order was inversely proportional to the radius and charge transfer of heavy metal cations, approximately following the order of: Ni2+ > Fe3+ > Cu2+ > Hg2+ > Zn2+ > Cd2+ > Mn2+. Compared to the gas-phase in other researches, the water environment has a significant influence on structures and binding energies of the heavy metal and amino acid binary complexes. Collectively, the present results will provide a basis for the design of a chelating agent (e.g., adding carboxyl or a benzene ring) to effectively remove heavy metals from the environment.
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Affiliation(s)
- Xinning Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China; (X.L.); (Q.Z.)
| | - Menghan Wu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; (M.W.); (P.Y.)
| | - Chenchen Li
- School of Management, Ocean University of China, Qingdao 266101, China;
| | - Peng Yu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; (M.W.); (P.Y.)
| | - Shanshan Feng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
| | - Yanwei Li
- Environment Research Institute, Shandong University, Qingdao 266237, China; (X.L.); (Q.Z.)
- Shenzhen Research Institute, Shandong University, Shenzhen 518057, China
- Correspondence: ; Tel.: +86-0532-58631990
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Qingdao 266237, China; (X.L.); (Q.Z.)
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18
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Xu M, Du L, Liu M, Zhou J, Pan W, Fu H, Zhang X, Ma Q, Wu L. Glycine-chelated zinc rather than glycine-mixed zinc has lower foliar phytotoxicity than zinc sulfate and enhances zinc biofortification in waxy corn. Food Chem 2022; 370:131031. [PMID: 34509153 DOI: 10.1016/j.foodchem.2021.131031] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/24/2021] [Accepted: 08/29/2021] [Indexed: 01/18/2023]
Abstract
To determine whether high spraying concentrations of Zn sources increase the Zn concentration in waxy corn (Zea mays L. var. ceratina Kulesh) seeds without compromising agronomic performance, field experiments were conducted between 2018 and 2020. Excess ZnSO4 application caused foliar burn, barren ear tip, and grain yield loss. ZnEDTA and Glycine-chelated Zn (ZnGly) caused less foliar burn, but Glycine-mixed Zn caused more foliar burn than ZnSO4. The seed Zn concentration increased with spraying Zn concentration. ZnEDTA (≤0.8%) had a higher threshold concentration than ZnGly (≤0.4%). Nevertheless, Zn biofortification efficacy did not significantly differ between 0.4% ZnGly and 0.8% ZnEDTA, and the grain Zn recovery rate of 0.4% ZnGly was much higher than that of 0.8% ZnEDTA. Additionally, dual-isotope labelling tests confirmed that 15N-glycine and 68Zn in ZnGly interacted. In the future, chelating technology is essential for developing new Zn fertilizers to optimize Zn biofortification efficacy.
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Affiliation(s)
- Meng Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Longgang Du
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Mengjiao Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jingjie Zhou
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wankun Pan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haoran Fu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Zhang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qingxu Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Lianghuan Wu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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19
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Yi S, Li F, Wu C, Wei M, Tian J, Ge F. Synergistic leaching of heavy metal-polycyclic aromatic hydrocarbon in co-contaminated soil by hydroxamate siderophore: Role of cation-π and chelation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127514. [PMID: 34879514 DOI: 10.1016/j.jhazmat.2021.127514] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Exploring a novel green efficient bioeluant is a golden key to unlock the ex-situ scale remediation of soil contaminated with heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs). Hydroxamate siderophore (HDS) produced by Pseudomonas fluorescens HMP01, with certain hydrophobicity and strong coordination because of its special chemical structure (e.g., hydroxamic acid and dihydroxy quinoline chromophore), was used to investigate the bioleaching efficiency of HMs and PAHs from actual contaminated soils and underlying mechanisms. Results showed that leaching efficiency for HMs and PAHs from the co-contaminated soil was higher than that of single contaminated soil due to the cation-π interaction and coordination, which was closely related to the spacial configuration changes of the complex. HDS not only increased the bioleaching efficiency of cationic HMs by chelation (the leaching amount of Cd2+, Pb2+, Hg2+, Cu2+, Zn2+, and Ni2+ achieved 27.5, 110.4, 6.9, 477.7, 10,606.9, and 137.4 mg/kg HDS, respectively) but also enhanced the bioleaching amount of PAHs by solubilization (the leaching amount of phenanthrene reached 90.2 mg/kg HDS. Also, the residual HDS in soils caused no significant ecological risk. As expected, HDS is a desirable bioeluant to promote the scale application of the ex-situ remediation of soil contaminated with HMs and PAHs.
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Affiliation(s)
- Shengwei Yi
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China
| | - Feng Li
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China.
| | - Chen Wu
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China
| | - Ming Wei
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China
| | - Jiang Tian
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China
| | - Fei Ge
- College of Environment Science and Resources, Xiangtan University, Xiangtan 411105, PR China; Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, PR China; Scientific Research Innovation Platform of Environmental Behavior and Control Principle about Novel Pollutants in Hunan Provincial Universities, Xiangtan 411105, PR China
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20
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Yang D, Wang R, Feng X, Chu Z, Li J, Wei W, Zheng R, Zhang J, Chen H. Transferring waste red mud into ferric oxide decorated ANA-type zeolite for multiple heavy metals polluted soil remediation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127244. [PMID: 34583169 DOI: 10.1016/j.jhazmat.2021.127244] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/13/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Herein, a novel "waste reclamation for soil remediation" strategy has been developed for both alkaline waste red mud (RM) recycling and heavy metal (HM) polluted soil remediation. Through a direct one-pot hydrothermal reaction process, the Al, Si, alkali, and Fe2O3 components in waste RM have been transferred into ferric oxide decorated ANA-type zeolite (Fe2O3-ANA). As tested by the HMs polluted soil remediation and oilseed rape planting experiment, when 25 g/kg Fe2O3-ANA is added into the Pb2+, Cu2+, Cr3+ and anionic AsO2- polluted soil (HM concentration: 100-200 mg/kg), it can effectively suppress the HMs mobility in soil and reduce the bio-accumulation concentrations of HMs in the harvested oilseed rape (reduce ratio: 37.9-69.5%). The detailed mechanism study using energy dispersive X-ray energy spectroscopy, in-depth X-ray photoelectron spectroscopy and density function theory calculation concludes that the Cu2+, Pb2+ and Cr3+ in soil have been adsorbed and trapped in the framework structure of ANA in Fe2O3-ANA mainly via the cation exchange process. While the anionic AsO2- species are mainly caught by the Fe2O3 component in Fe2O3-ANA via surface adsorption. Overall, this work firstly transforms waste RM into Fe2O3-ANA for soil remediation, which is valuable to waste resource recycling and environmental conservation.
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Affiliation(s)
- Dazhong Yang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ranhao Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuezhen Feng
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zheting Chu
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Li
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenfei Wei
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Renji Zheng
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Juan Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hong Chen
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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21
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Han M, Xu M, Wang S, Wu L, Sun S, Su T. Effects of exogenous L-Glutamine as a sole nitrogen source on physiological characteristics and nitrogen use efficiency of poplar. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 172:1-13. [PMID: 35007889 DOI: 10.1016/j.plaphy.2021.12.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/17/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
L-Glutamine (Gln) is a proteinogenic amino acid, N transporter and NH3 carrier, engaging in diversified pathways for synthesizing many important molecules. However, the effects of exogenous Gln on plant growth and development remain largely unknown. In this study, different concentrations of Gln were supplemented in the poplar hybrid 'Nanlin895' culture medium as a sole N source. Their effects on poplar growth, photosynthesis, N metabolism-related enzymes and metabolites were elucidated. Strikingly, 0.5 mM Gln-fed poplars showed no considerable growth compromise compared to the inorganic N control (CK-N), even though their N supply level was only half that of the CK-N control. What's more, their NUE was enhanced. In addition, 0.5 mM Gln treatment significantly increased the contents of amino acids in coordination with soluble sugars in the roots, while marginal effects in the leaves were observed compared to CK-N. By contrast, applying a high level of Gln (>0.5 mM) resulted in larger accumulation of amino acids and starch, but lower level of soluble sugars, particularly in the roots, followed by adverse effects on poplar biomass, photosynthesis, enzyme activities and NUE; consequently, poplar growth was inhibited. Collectively, these findings allow us to deduce that poplar plants are competent to take up and utilize Gln as a sole N source. When applied at an appropriate level, Gln could promote a dynamic equilibrium of N and C, conferring sound growth performance and additional benefit for the environment as indicated by higher NUE, lower N input and higher biocompatible nature than the inorganic N.
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Affiliation(s)
- Mei Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Mingyue Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Shizhen Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Liangdan Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Shuyue Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Tao Su
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China; Key Laboratory of State Forestry Administration on Subtropical Forest Biodiversity Conservation, Nanjing Forestry University, Nanjing, 210037, China.
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22
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Complexation of Amino Acids with Cadmium and Their Application for Cadmium-Contaminated Soil Remediation. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031114] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The interaction of amino acids with toxic heavy metals influences their immobilization and bioavailability in soils. However, the complexation ability of amino acids with Cd has not been well studied. The complexes of amino acids and cadmium were investigated by density functional theory (DFT) calculations and Fourier transform infrared spectrometry (FTIR) analyses. The complex structures were found to be [COc, COc] for fatty amino-cadmium and PheCd2+, [COc, COc, COs] for GluCd2+ and ThrCd2+, respectively. The complex energy of these conformers followed the order PheCd2+> AlaCd2+ > LeuCd2+ > GluCd2+ > GlyCd2+ > ThrCd2+. Importantly, all of the complex energy values were less than zero, indicating that these complexes could be easily dissolved in water. The Cd2+ concentration decreased with increasing amino acid concentration in aqueous solution. The complex stability constants (logβ) followed the order PheCd2+> AlaCd2+ > LeuCd2+ > GluCd2+ > GlyCd2+ > ThrCd2+, consistent with the order of the calculated complex energy values. The Cd removal efficiencies by Thr, Glu, Gly, Ala, Leu, and Phe were 38.88%, 37.47%, 35.5%, 34.72%, 34.04%, and 31.99%, respectively. In soil batch tests, the total Cd concentration in soil decreased in the presence of amino acids, while the Cd concentration in water increased from 231.97 μg/L to 652.94~793.51 μg/L. The results of sequential extraction showed that the acid-extractable fraction and the reducible fraction of Cd sharply decreased. Consequently, the significant features of amino acids along with their biocompatibility make them potentially applicable chelators in Cd-contaminated soil remediation processes.
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Nakamura T, Tsukizawa T, Oya M. Combined Use of Reducing Agents and Biodegradable Chelating Agent for Iron Rust Removal. J Oleo Sci 2022; 71:493-504. [DOI: 10.5650/jos.ess21297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tatsuya Nakamura
- Graduate School of Environment and Information Sciences, Yokohama National University
| | - Toru Tsukizawa
- Graduate School of Environment and Information Sciences, Yokohama National University
| | - Masaru Oya
- Graduate School of Environment and Information Sciences, Yokohama National University
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Wang Y, Xu Y, Qin X, Zhao L, Huang Q, Liang X. Effects of S,S-ethylenediamine disuccinic acid on the phytoextraction efficiency of Solanum nigrum L. and soil quality in Cd-contaminated alkaline wheat soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:42959-42974. [PMID: 33830419 DOI: 10.1007/s11356-021-13764-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Degradable chelating agent-assisted phytoextraction is a promising method for the remediation of Cd-contaminated agricultural soil. However, there are limited studies that have examined the effect of chelating agents on soil solutions and soil quality in alkaline soil. In this study, the effects of S,S-ethylenediamine disuccinic acid (EDDS) on the growth and phytoextraction of Solanum nigrum L. (S. nigrum) were studied using pot experiments. The influence of EDDS on the soil solutions, heavy metal contents, and soil enzyme activities was evaluated. EDDS application increased the height of S. nigrum by 7.25-29.25 cm and increased the biomass of stem and leaf by 4.26-14.95 and 1.14-10.78 g/pot, respectively. The Cd concentrations in the leaves and berries of S. nigrum were 1.21-2.17 and 1.7-9.47 times higher than that of the control, respectively, and the Cd extraction amount in the shoots of S. nigrum increased by 22.78-256.16 μg/pot after EDDS application. The chelation of EDDS on heavy metals reached a peak after 7 days of application, decreased gradually with the degradation of EDDS, and disappeared after 30 days of application. Soil pH, available metals, metal speciation, and soil urease were significantly related to the application time of EDDS. Importantly, EDDS application 45 days before S. nigrum harvest treatments decreased the available metal concentrations and improved soil pH and urease activity. However, when EDDS was applied 15 days before S. nigrum harvest, the available Cd and Pb concentrations significantly increased and caused additional Pb pollution. Considering the chelation and degradation effects, the environmental implication, and the cost of EDDS, the results of this study showed that one application of EDDS was better than two applications, a 45-day application before harvest was preferred to a 15-day application, and application of 1-3 mM EDDS 30-45 days before S. nigrum harvest was the most promising application method for the remediation of Cd-contaminated alkaline soil.
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Affiliation(s)
- Yale Wang
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
| | - Yingming Xu
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China.
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China.
| | - Xu Qin
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
| | - Lijie Zhao
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
| | - Qingqing Huang
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
| | - Xuefeng Liang
- Innovation Team of Remediation for Heavy Metal Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
- Key Laboratory of Original Environmental Pollution Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, People's Republic of China
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Yang D, Chu Z, Zheng R, Wei W, Feng X, Zhang J, Li C, Zhang Z, Chen H. Remediation of Cu-polluted soil with analcime synthesized from engineering abandoned soils through green chemistry approaches. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124673. [PMID: 33310322 DOI: 10.1016/j.jhazmat.2020.124673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Due to the large output and potential ecological risks, disposal of engineering abandoned soils (EAS) has become an enormous challenge for human society. Herein, EAS has been transformed into microporous analcime (ANA) zeolite material through a fast, energy-efficient, and straightforward conversion process. The as-synthesized ANA has been employed to remediate Cu-polluted soil, which shows a significant ecological restoration function in a vegetable pot experiment. With 25 g/kg ANA into Cu contaminated soil (total Cu concentration: 200 ppm), the Cu accumulation concentration in vegetables has been decreased from 5.60 down to 1.80 mg/kg (approaching the background Cu level 1.70 mg/kg in vegetables). Detailed mechanism study combining with DFT calculations reveals that the Cu2+ in soil has been captured both inside the ANA pore channels and on the surface via ion-exchange and surface adsorption mechanism. The whole process, including ANA synthesis and Cu polluted soil remediation, has been optimized to show a valuable conceptual model to recycle EAS resource and in-situ remediate Cu polluted soil.
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Affiliation(s)
- Dazhong Yang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zheting Chu
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Renji Zheng
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenfei Wei
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuezhen Feng
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Juan Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chunyan Li
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zuotai Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hong Chen
- State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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Asadollahfardi G, Sarmadi MS, Rezaee M, Khodadadi-Darban A, Yazdani M, Paz-Garcia JM. Comparison of different extracting agents for the recovery of Pb and Zn through electrokinetic remediation of mine tailings. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111728. [PMID: 33310346 DOI: 10.1016/j.jenvman.2020.111728] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 11/15/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
This study was conducted to investigate the feasibility of Electrokinetic Remediation to remove lead and zinc from real mine tailings, collected from the Lacan's lead and zinc Mineralized Flotation Processing Plant (Markazi province, Iran). High buffering capacity, high organic matter, and heavy metal contamination were the unique characteristics of this mine tailing. Electrokinetic remediation of the mine tailings was carried out in 11 separate experiments under constant voltage gradient of 2 V/cm for 9 days. Various enhancement techniques were tested, such as 1) electrolyte conditioning using chelating agents including ethylenediaminetetraacetic acid, citric acid, acetic acid, and hydrochloric acid; 2) increasing the concentration of the catholyte solution, and 3) adding chelating agents to the soil as a pre-treatment of the tailings and the electrolyte condoning simultaneously. The concentration of each electrolyte solution was selected based on the different extraction tests that resulted in the optimal or highest extraction percentage of lead and zinc. Electrolyte conditioning, in the case of using citric acid 1 M enhanced the removal of Pb and Zn dramatically. Catholyte conditioning, using citric acid 1 M, was the most effective enhancement technique for removing Zn (38.34%); also, the best removal efficiency of Pb (51.31%) was achieved using the same electrolyte solution in both electrode chambers. Increasing the acetic acid concentration was favorable for removal of both heavy metals. Compared to catholyte conditioning, pre-treatment coupled with catholyte conditioning could not improve the removal efficiency considerably.
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Affiliation(s)
| | - Mohammad Sina Sarmadi
- Faculty of Engineering, Department of Civil Engineering, Kharazmi University, Tehran, Iran.
| | - Milad Rezaee
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Canada.
| | - Ahmad Khodadadi-Darban
- Mineral Processing Group, Department of Mining Engineering, Tarbiat Modares University, Tehran, Iran.
| | - Mahdie Yazdani
- Faculty of Engineering, Department of Civil Engineering, Kharazmi University, Tehran, Iran.
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Wang G, Pan X, Zhang S, Zhong Q, Zhou W, Zhang X, Wu J, Vijver MG, Peijnenburg WJGM. Remediation of heavy metal contaminated soil by biodegradable chelator-induced washing: Efficiencies and mechanisms. ENVIRONMENTAL RESEARCH 2020; 186:109554. [PMID: 32344210 DOI: 10.1016/j.envres.2020.109554] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 04/15/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Biodegradable chelators (BCs) are promising substitutes for conventional washing agents in the remediation of heavy metal contaminated soil with strong complexing ability and less cost. However, great challenges for the applications of BC-assisted washing still exist, such as the assessment of the factor affecting the efficiency of metal removal and the unclear of the metal removal mechanism. Batch washing was therefore explored to evaluate the potential for four BCs for removing Cd, Pb, and Zn from polluted soils. The soil spectroscopic characteristics before and after washing were also investigated. The results demonstrated that iminodisuccinic acid (ISA) and glutamate-N, N-diacetic acid (GLDA) were an appealing alternative to commonly used non-biodegradable ethylenediaminetetraacetic acid, but glucomonocarbonic acid (GCA) and polyaspartic acid (PASP) were less efficient. Optimal parameters of BCs were determined to be a concentration of 50 mmol L-1, a pH of 5.0, a contact time of 120 min, and a solid/liquid ratio of 1:5, considering metal removal efficiencies and the suitable cost. A single removal washing could be up to 52.39% of Cd, 71.79% of Pb, and 34.13% of Zn from mine soil, and 98.28% of Cd, 91.10% of Pb, and 90.91% of Zn from polluted farmland soil. After washing, the intensity of heavy metal binding to soil colloids increased while the metal mobility reduced because of weakly bound fractions removed by BCs. The BCs-induced soil washing revealed that the possible mechanisms of metal removal included the acid dissolution, ion exchange, and surface complexation. Our findings highlight the potential application of especially ISA and GLDA as efficient washing agents to remove potentially toxic elements from contaminated soils.
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Affiliation(s)
- Guiyin Wang
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China; Sichuan Provincial Key Laboratory of Soil Environmental Protection, Chengdu, 611130, China; Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA, Leiden, the Netherlands
| | - Xiaomei Pan
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China; Chengdu Agricultural College, Wenjiang, 611130, China
| | - Shirong Zhang
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China; Sichuan Provincial Key Laboratory of Soil Environmental Protection, Chengdu, 611130, China.
| | - Qinmei Zhong
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China; Sichuan Provincial Key Laboratory of Soil Environmental Protection, Chengdu, 611130, China
| | - Wei Zhou
- College of Resources, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xiaohong Zhang
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Jun Wu
- College of Environmental Science, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Martina G Vijver
- Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA, Leiden, the Netherlands
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA, Leiden, the Netherlands; National Institute of Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven, the Netherlands
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