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Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique

Author

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  • Marin Senila

    (Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, Romania)

  • Oana Cadar

    (Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, Romania)

  • Lacrimioara Senila

    (Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, Romania)

  • Bogdan Simion Angyus

    (Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, 67 Donath Street, 400293 Cluj-Napoca, Romania)

Abstract

The aim of this study was to investigate the effect of natural zeolite amendment to contaminated soil on the heavy metal (Cd, Cr, Cu, Pb and Zn) simulated bioavailability over a three-month period of storage. Two pot experiments were created by amending soil with two different amounts of natural zeolite (3 and 6 wt.%). During the experiment, pH level, metal concentrations in soil solution (C sol ) and metal concentrations in soil by the diffusive gradients in thin-films technique (C DGT ) were determined. When the zeolite was added to the soil, a significant decrease ( p = 95%, n = 3) for Cd and Pb concentrations, both in C sol and in C DGT , was observed. The Cu, Cr and Zn concentrations also showed a decreasing trend, but the changes in their concentrations were not statistically significant. The R ratio between C DGT and C sol was calculated for each metal in order to assess the resupply of metals from the soil solid phase to soil solution. The R values significantly decreased for Cd and Pb, showing a low resupply from the solid phase in the samples with added zeolite.

Suggested Citation

  • Marin Senila & Oana Cadar & Lacrimioara Senila & Bogdan Simion Angyus, 2022. "Simulated Bioavailability of Heavy Metals (Cd, Cr, Cu, Pb, Zn) in Contaminated Soil Amended with Natural Zeolite Using Diffusive Gradients in Thin-Films (DGT) Technique," Agriculture, MDPI, vol. 12(3), pages 1-15, February.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:3:p:321-:d:755993
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    References listed on IDEAS

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    1. Eva Šubová & Naďa Sasáková & František Zigo & Ingrid Mindžáková & Mária Vargová & Ján Kachnič & Katarína Veselitz Laktičová, 2021. "Amendment of Livestock Manure with Natural Zeolite-Clinoptilolite and Its Effect on Decomposition Processes during Composting," Agriculture, MDPI, vol. 11(10), pages 1-14, October.
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    Cited by:

    1. Rahmany-Samani, Amir & Ghobadinia, Mahdi & Tabatabaei, Sayyed-Hassan & Nourmahnad, Negar & Danesh-Shahraki, Abdolrazagh, 2023. "The effect of irrigation and zeolite management on the reduction of cadmium accumulation in rice," Agricultural Water Management, Elsevier, vol. 287(C).
    2. Liyu Yang & Pan Wu & Wentao Yang, 2022. "Study on Safe Usage of Agricultural Land in Typical Karst Areas Based on Cd in Soil and Maize: A Case Study of Northwestern Guizhou, China," Agriculture, MDPI, vol. 12(8), pages 1-16, August.

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