Effect of Steel Slag to Improve Soil Quality of Tsunami-Impacted Land while Reducing the Risk of Heavy Metal Bioaccumulation

Marco Antonio León-Romero, Paula Cecilia Soto-Ríos, Munehiro Nomura, Osamu Nishimura

研究成果: Article査読

6 被引用数 (Scopus)

抄録

After the tsunami caused by the Great East Japan Earthquake, marine sediment was taken from the sea bottom and deposited over local agricultural fields. The marine sediment already contained an unknown amount of heavy metals, due to anthropogenic activities prior to the tsunami, which might affect plants, animals, and humans. Furthermore, soil salinity in tsunami-inundated land greatly increased. Three different amounts of steel slag were employed as pretreatment agent in order to improve agricultural soil quality. The soil samples treated with 2% of steel slag present a remarkable increase of A. thaliana biomass production with low BCF and TF values for most of the heavy metals. It was concluded that steel slag pretreatment used in the tsunami-inundated agricultural lands produced a noteworthy improvement in soil quality which lead to a positive stimulative effect on plant growth, and the slag addition treatment proved to be a promising treatment that might be used for phytostabilization of slightly contaminated soils.

本文言語English
論文番号12
ジャーナルWater, Air, and Soil Pollution
229
1
DOI
出版ステータスPublished - 2018 1 1

ASJC Scopus subject areas

  • 環境工学
  • 環境化学
  • 生態モデリング
  • 水の科学と技術
  • 汚染

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