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Zou K, Wei J, Wang D, Kong Z, Zhang H, Wang H. A novel remediation method of cadmium (Cd) contaminated soil: Dynamic equilibrium of Cd 2+ rapid release from soil to water and selective adsorption by PP-g-AA fibers-ball at low concentration. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125884. [PMID: 34492822 DOI: 10.1016/j.jhazmat.2021.125884] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/07/2021] [Accepted: 04/11/2021] [Indexed: 06/13/2023]
Abstract
The acid-extractable fraction Cd(II) in soil accumulates easily in organisms, migrates and transforms in the ecological environment, which has posed potential health risks to human. This study found that the acid-extractable fraction Cd(II) in soil could be released rapidly into water at very low Cd2+ concentration. Carboxylated polypropylene (PP-g-AA) fibers-ball with high selectivity as adsorbent was used in the Cd(II) contaminated soil-water system. It could remove promptly trace Cd2+ from water even in the presence of interfering metal ions. Moreover, Cd(II) desorbed from soil to water could be continuously adsorbed by PP-g-AA fibers-ball, which kept the Cd2+ concentration always at a low level. This forms a dynamic equilibrium of rapid release- selective adsorption toward the acid-extractable fraction Cd(II) in the soil-water system. Here, the migratory pathway for the acid-extractable fraction Cd(II) to be released from contaminated soil to water and adsorbed simultaneously on the surface of PP-g-AA fibers-ball was established. This work offers a novel protocol that can remove more than 90% of the acid-extractable fraction Cd(II) from contaminated soil within 12 h, thereby contributes better to mitigate the risk of Cd(II) from soil to the food chain without changing the physical and chemical properties of soil.
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Affiliation(s)
- Kaijian Zou
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Junfu Wei
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China.
| | - Di Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; Shool of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Zhiyun Kong
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; Tianjin Engineering Center for Safety Evaluation of Water & Safeguards Technology, Tianjin 300387, China; Shool of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Huan Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; Tianjin Engineering Center for Safety Evaluation of Water & Safeguards Technology, Tianjin 300387, China; Shool of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Huicai Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
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Schneider A, Lin Z, Sterckeman T, Nguyen C. Comparison between numeric and approximate analytic solutions for the prediction of soil metal uptake by roots. Example of cadmium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:1194-1205. [PMID: 29734598 DOI: 10.1016/j.scitotenv.2017.11.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 06/08/2023]
Abstract
The dissociation of metal complexes in the soil solution can increase the availability of metals for root uptake. When it is accounted for in models of bioavailability of soil metals, the number of partial differential equations (PDEs) increases and the computation time to numerically solve these equations may be problematic when a large number of simulations are required, for example for sensitivity analyses or when considering root architecture. This work presents analytical solutions for the set of PDEs describing the bioavailability of soil metals including the kinetics of complexation for three scenarios where the metal complex in solution was fully inert, fully labile, or partially labile. The analytical solutions are only valid i) at steady-state when the PDEs become ordinary differential equations, the transient phase being not covered, ii) when diffusion is the major mechanism of transport and therefore, when convection is negligible, iii) when there is no between-root competition. The formulation of the analytical solutions is for cylindrical geometry but the solutions rely on the spread of the depletion profile around the root, which was modelled assuming a planar geometry. The analytical solutions were evaluated by comparison with the corresponding PDEs for cadmium in the case of the French agricultural soils. Provided that convection was much lower than diffusion (Péclet's number<0.02), the cumulative uptakes calculated from the analytic solutions were in very good agreement with those calculated from the PDEs, even in the case of a partially labile complex. The analytic solutions can be used instead of the PDEs to predict root uptake of metals. The analytic solutions were also used to build an indicator of the contribution of a complex to the uptake of the metal by roots, which can be helpful to predict the effect of soluble organic matter on the bioavailability of soil metals.
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Affiliation(s)
- André Schneider
- INRA, UMR 1391 ISPA, 71, avenue Edouard Bourlaux, CS 20032, 33882 Villenave-d'Ornon cedex, France; Bordeaux Sciences Agro, UMR 1391 ISPA, 33170 Gradignan, France.
| | - Zhongbing Lin
- INRA, Laboratoire Sols et Environnement, UMR 1120, 2, avenue de la Forêt de Haye, TSA 40602, 54518 Vandoeuvre-lès-Nancy, France; Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, 2, avenue de la Forêt de Haye, TSA 40602, 54518 Vandoeuvre-lès-Nancy, France
| | - Thibault Sterckeman
- INRA, Laboratoire Sols et Environnement, UMR 1120, 2, avenue de la Forêt de Haye, TSA 40602, 54518 Vandoeuvre-lès-Nancy, France; Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, 2, avenue de la Forêt de Haye, TSA 40602, 54518 Vandoeuvre-lès-Nancy, France.
| | - Christophe Nguyen
- INRA, UMR 1391 ISPA, 71, avenue Edouard Bourlaux, CS 20032, 33882 Villenave-d'Ornon cedex, France; Bordeaux Sciences Agro, UMR 1391 ISPA, 33170 Gradignan, France.
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Cun P, Sarrobert C, Richaud P, Chevalier A, Soreau P, Auroy P, Gravot A, Baltz A, Leonhardt N, Vavasseur A. Modulation of Zn/Cd P1B2-ATPase activities in Arabidopsis impacts differently on Zn and Cd contents in shoots and seeds. Metallomics 2014; 6:2109-16. [DOI: 10.1039/c4mt00182f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Changes in the expression levels of P1B2-ATPases in Arabidopsis impacts Zn and Cd contents in shoots and seeds.
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Affiliation(s)
- Pierre Cun
- IBEB-SBVME Laboratoire de Biologie du Développement des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Catherine Sarrobert
- IBEB-SBVME Groupe de Recherches Appliquées en Phytotechnologie
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Pierre Richaud
- IBEB-SBVME Laboratoire de Bioénergétique et Biotechnologie des Bactéries et Microalgues
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Anne Chevalier
- IBEB-SBVME Laboratoire d'Ecophysiologie Moléculaire des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Paul Soreau
- IBEB-SBVME Groupe de Recherches Appliquées en Phytotechnologie
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Pascaline Auroy
- IBEB-SBVME Laboratoire de Bioénergétique et Biotechnologie des Bactéries et Microalgues
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Antoine Gravot
- IBEB-SBVME Laboratoire de Biologie du Développement des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Anthony Baltz
- IBEB-SBVME Laboratoire de Biologie du Développement des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Nathalie Leonhardt
- IBEB-SBVME Laboratoire de Biologie du Développement des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
| | - Alain Vavasseur
- IBEB-SBVME Laboratoire de Biologie du Développement des Plantes
- UMR7265 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache
- Université Aix-Marseille
- F-13108 Saint-Paul-lez-Durance, France
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Schneider A, Nguyen C. Use of an exchange method to estimate the association and dissociation rate constants of cadmium complexes formed with low-molecular-weight organic acids commonly exuded by plant roots. JOURNAL OF ENVIRONMENTAL QUALITY 2011; 40:1857-1862. [PMID: 22031568 DOI: 10.2134/jeq2010.0529] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Organic acids released from plant roots can form complexes with cadmium (Cd) in the soil solution and influence metal bioavailability not only due to the nature and concentration of the complexes but also due to their lability. The lability of a complex influences its ability to buffer changes in the concentration of free ions (Cd); it depends on the association (, m mol s) and dissociation (, s) rate constants. A resin exchange method was used to estimate and (m mol s), which is the conditional estimate of depending on the calcium (Ca) concentration in solution. The constants were estimated for oxalate, citrate, and malate, three low-molecular-weight organic acids commonly exuded by plant roots and expected to strongly influence Cd uptake by plants. For all three organic acids, the and estimates were around 2.5 10 m mol s and 1.3 × 10 s, respectively. Based on the literature, these values indicate that the Cd- low-molecular-weight organic acids complexes formed between Cd and low-molecular-weight organic acids may be less labile than complexes formed with soil soluble organic matter but more labile than those formed with aminopolycarboxylic chelates.
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Affiliation(s)
- André Schneider
- INRA, Transfert sol-plante et Cycles des Elements Mineraux dans les ecosystemes cultives, Villenave-d'Ornon, France.
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