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Li Y, Cheng L, Yang B, Ding Y, Zhao Y, Wu Y, Nie Y, Liu Y, Xu A. Zinc oxide/graphene oxide nanocomposites specifically remediated Cd-contaminated soil via reduction of bioavailability and ecotoxicity of Cd. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173641. [PMID: 38825205 DOI: 10.1016/j.scitotenv.2024.173641] [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: 01/19/2024] [Revised: 03/22/2024] [Accepted: 05/28/2024] [Indexed: 06/04/2024]
Abstract
From both environment and health perspectives, sustainable management of ever-growing soil contamination by heavy metal is posing a serious global concern. The potential ecotoxicity of cadmium (Cd) to soil and ecosystem seriously threatens human health. Developing efficient, specific, and long-term remediation technology for Cd-contaminated soil is impending to synchronously minimize the bioavailability and ecotoxicity of Cd. In the present study, zinc oxide/graphene oxide nanocomposite (ZnO/GO) was developed as a novel amendment for remediating Cd-contaminated soil. Our results showed that ZnO/GO effectively decreased the available soil Cd content, and increased pH and cation exchange capacity (CEC) in both Cd-spiked standard soil and Cd-contaminated mine field soil through the interaction between ZnO/GO and soil organic acids. Using Caenorhabditis elegans (C. elegans) as a model organism for soil safety evaluation, ZnO/GO was further proved to decrease the ecotoxicity of Cd-contaminated soil. Specifically, ZnO/GO promoted Cd excretion and declined Cd storage in C. elegans by increasing the expression of gene ttm-1 and decreasing the level of gene cdf-2, which were responsible for Cd transportation and Cd accumulation, respectively. Moreover, the efficacy of ZnO/GO in remediating the properties and ecotoxicity of Cd-contaminated soil increased gradually with the time gradient, and could maintain a long-term effect after reaching the optimal remediation efficiency. Our findings established a specific and long-term strategy to simultaneously improve soil properties and reduce ecotoxicity of Cd-contaminated soil, which might provide new insights into the potential application of ZnO/GO in soil remediation for both ecosystem and human health.
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Affiliation(s)
- Yang Li
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Lei Cheng
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Baolin Yang
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Yuting Ding
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Yanan Zhao
- Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Yuanyuan Wu
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China
| | - Yaguang Nie
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Yun Liu
- Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China.
| | - An Xu
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, PR China; Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, CAS, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, CAS, Hefei, Anhui, 230031, PR China; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China.
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Chen F, Mao P, Wang M, Li Y, Li Y, Xia K, Chen J, Mo H, Wang F, Li Z, Zhuang P. Benefit evaluation of in-situ Cd immobilization with naturally occurring minerals using an analytical hierarchy process. CHEMOSPHERE 2024; 347:140720. [PMID: 37977539 DOI: 10.1016/j.chemosphere.2023.140720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/30/2023] [Accepted: 11/12/2023] [Indexed: 11/19/2023]
Abstract
Immobilization has a wide range of applications in heavy metal-contaminated soil remediation, and immobilization agents serve as the key to the successful application of this technology. In this study, we designed a comprehensive and efficient scoring system based on an analytic hierarchy process (AHP) to evaluate the feasibility and effectiveness of three immobilization agents (wollastonite, dolomite, and calcite) in remediating Cd-polluted soil. The scoring system comprised four criteria and 11 indicators, and the results showed that all three immobilization agents significantly reduced the accumulation of Cd in rice. The Cd reduction rates of early rice with a single application of wollastonite, dolomite, and calcite were 67.6%, 46.9%, and 83.8%, respectively. Single or combined application of dolomite and calcite decreased the available Cd concentration in early rice soil, and the application of calcite resulted in an excellent rating of both early and late rice, demonstrating its highest immobilization and stability performance. Therefore, the immobilization efficiency of the three materials in descending order followed calcite > dolomite + thioglycols > wollastonite. In summary, this comprehensive evaluation system offers new insight into assessing the efficiency of soil remediation, serving as a valuable reference for selecting immobilization agents and making decisions regarding remediation plans for heavy metal-contaminated soil.
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Affiliation(s)
- Fangman Chen
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peng Mao
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Mimi Wang
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yingwen Li
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Yongxing Li
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Kuaifei Xia
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jiantong Chen
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Hui Mo
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Faming Wang
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Zhian Li
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Ping Zhuang
- Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, The CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, 510650, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Effects of Abiotic Stress on Soil Microbiome. Int J Mol Sci 2021; 22:ijms22169036. [PMID: 34445742 PMCID: PMC8396473 DOI: 10.3390/ijms22169036] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
Rhizospheric organisms have a unique manner of existence since many factors can influence the shape of the microbiome. As we all know, harnessing the interaction between soil microbes and plants is critical for sustainable agriculture and ecosystems. We can achieve sustainable agricultural practice by incorporating plant-microbiome interaction as a positive technology. The contribution of this interaction has piqued the interest of experts, who plan to do more research using beneficial microorganism in order to accomplish this vision. Plants engage in a wide range of interrelationship with soil microorganism, spanning the entire spectrum of ecological potential which can be mutualistic, commensal, neutral, exploitative, or competitive. Mutualistic microorganism found in plant-associated microbial communities assist their host in a number of ways. Many studies have demonstrated that the soil microbiome may provide significant advantages to the host plant. However, various soil conditions (pH, temperature, oxygen, physics-chemistry and moisture), soil environments (drought, submergence, metal toxicity and salinity), plant types/genotype, and agricultural practices may result in distinct microbial composition and characteristics, as well as its mechanism to promote plant development and defence against all these stressors. In this paper, we provide an in-depth overview of how the above factors are able to affect the soil microbial structure and communities and change above and below ground interactions. Future prospects will also be discussed.
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