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Biochemical Analysis and Toxicity Assessment of Utilization of Argon Oxygen Decarbonization Slag as a Mineral Fertilizer for Tall Fescue ( Festuca arundinacea Schreb) Planting

Author

Listed:
  • Shuang Cai

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Bao Liu

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Junguo Li

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Yuzhu Zhang

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Yanan Zeng

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Yajun Wang

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

  • Tianji Liu

    (College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China)

Abstract

Argon oxygen decarbonization (AOD) slag refers to a byproduct of stainless steel (SS) production, which has caused considerable environmental stress. Finding an effective approach for recycling AOD slag is essential to environmental safety. In this work, batch leaching tests were carried out to explore the leaching behavior of AOD slag and soil. Pot experiments was conducted to analyze the fertilization effect of AOD slag for tall fescue ( Festuca arundinacea Schreb) planting. The plant height, biomass, total root length (TRL), root surface area (RSA), root tips (RT), root hairs (RH)), chlorophyll content, malondialdehyde (MDA) content, and antioxidant enzyme activities of the tall fescue seedlings were measured. As indicated from the results, adding AOD slag into soil increased soil pH. The leaching concentration of Ca, Si, Al, Cr of the AOD slag was higher than the original soil, while that of Mg, Mn, and Fe was lower. Low addition rate (≤1%) of AOD slag fertilization was good for plant height, biomass, root growth, and chlorophyll synthesis, whereas high addition rate (≥2%) exerted an opposite effect. Elevating the rate of AOD slag fertilization increased the Cr accumulation in the tall fescue seedling that aggravated damage of reactive oxygen species (ROS). When the AOD slag fertilization was at a low rate (≤1%), ROS scavenging was attributed to the synergistic effects of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) defense systems, while at a high rate (≥2%) of AOD slag fertilization, scavenging of excessive ROS could be mainly due to the CAT defense system.

Suggested Citation

  • Shuang Cai & Bao Liu & Junguo Li & Yuzhu Zhang & Yanan Zeng & Yajun Wang & Tianji Liu, 2022. "Biochemical Analysis and Toxicity Assessment of Utilization of Argon Oxygen Decarbonization Slag as a Mineral Fertilizer for Tall Fescue ( Festuca arundinacea Schreb) Planting," Sustainability, MDPI, vol. 14(15), pages 1-12, July.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:15:p:9286-:d:874670
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    References listed on IDEAS

    as
    1. Bernardo, G. & Marroccoli, M. & Nobili, M. & Telesca, A. & Valenti, G.L., 2007. "The use of oil well-derived drilling waste and electric arc furnace slag as alternative raw materials in clinker production," Resources, Conservation & Recycling, Elsevier, vol. 52(1), pages 95-102.
    2. Dipali Srivastava & Madhu Tiwari & Prasanna Dutta & Puja Singh & Khushboo Chawda & Monica Kumari & Debasis Chakrabarty, 2021. "Chromium Stress in Plants: Toxicity, Tolerance and Phytoremediation," Sustainability, MDPI, vol. 13(9), pages 1-20, April.
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