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标题:Effects of exogenous dissolved organic matter on the adsorption–desorption behaviors and bioavailabilities of Cd and Hg in a plant–soil system
时间:2020-11-22 13:49:24
DOI:10.1016/j.scitotenv.2020.138252
大小:2214 kb
页数:10 PAGES
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目录:
  • Effects of exogenous dissolved organic matter on the adsorption–desorption behaviors and bioavailabilities of Cd and Hg in ...
    • 1. Introduction
    • 2. Materials and methods
      • 2.1. Preparation of soil and DOM
      • 2.2. Experimental design
        • 2.2.1. Isothermal adsorption and desorption experiments
          • 2.2.1.1. Concentration experiments
          • 2.2.1.2. Time experiments
          • 2.2.1.3. pH experiments
        • 2.2.2. Pot experiments
      • 2.3. Analytical instrumentation and quality control
    • 3. Results
      • 3.1. Isothermal adsorption and desorption experiments
        • 3.1.1. Initial Cd and Hg concentrations
        • 3.1.2. Time
        • 3.1.3. pH
      • 3.2. Pot experiments
        • 3.2.1. Cd and Hg distributions in root soil
        • 3.2.2. Cd and Hg accumulation in plants grown in soil with different types of DOM added
    • 4. Discussion
      • 4.1. Characterization of the DOM
      • 4.2. Effects of the DOM properties on Cd and Hg adsorption and desorption in soil
      • 4.3. Effects of the Cd and Hg properties on adsorption and desorption
      • 4.4. Effects of the Cd, Hg, and DOM properties on Cd and Hg behavior in a soil–plant system
    • 5. Conclusions
    • CRediT authorship contribution statement
    • Declaration of competing interest
    • Acknowledgments
    • Appendix A. Supplementary data
    • References

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