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Removal of soil polycyclic aromatic hydrocarbons derived from biomass fly ash by plants and organic amendments

Author

Listed:
  • Zdeněk KOŠNÁŘ
  • Pavel TLUSTOŠ

    (Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

Phytoremediation using maize (Zea mays L.) assisted by the compost or vermicompost amendments was the most appropriate strategy for bioremediation of soil contaminated by polycyclic aromatic hydrocarbons (PAHs) derived from biomass fly ash. Higher removal of low molecular weight PAHs than medium and high molecular weight PAHs within the same treatment were observed. The total PAH content in planted soil with compost or vermicompost was decreased in a range between 62.9-64.9%. There were no significant differences (P < 0.05) between the compost and vermicompost amendments on the total removal of ash-PAHs. The content of PAH derived by ash did not have adverse effect on maize cultivation and biomass yield. The contribution of PAH reduction by maize roots on the soil total PAH removal was negligible. Therefore, maize significantly boosted the PAH removal in soil. The harvested maize shoots did not represent any environmental risk.

Suggested Citation

  • Zdeněk KOŠNÁŘ & Pavel TLUSTOŠ, 2018. "Removal of soil polycyclic aromatic hydrocarbons derived from biomass fly ash by plants and organic amendments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(2), pages 88-94.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:2:id:39-2018-pse
    DOI: 10.17221/39/2018-PSE
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    References listed on IDEAS

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    1. Pavla OCHECOVÁ & Filip MERCL & Zdeněk KOŠNÁŘ & Pavel TLUSTOŠ, 2017. "Fertilization efficiency of wood ash pellets amended by gypsum and superphosphate in the ryegrass growth," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(2), pages 47-54.
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