Assessment of EDTA heap leaching of an agricultural soil highly contaminated with heavy metals.

@article{Hu2014AssessmentOE,
  title={Assessment of EDTA heap leaching of an agricultural soil highly contaminated with heavy metals.},
  author={Pengjie Hu and Bingfan Yang and Changxun Dong and Like Chen and Xueying Cao and Jie Zhao and Longhua Wu and Yongming Luo and Peter Christie},
  journal={Chemosphere},
  year={2014},
  volume={117},
  pages={532-7}
}
The efficiency of heavy metal removal from soil by EDTA leaching was assessed in a column leaching experiment at the laboratory scale and field heap leaching at the pilot scale using a sandy loam sierozem agricultural soil contaminated with Cd, Cu, Pb, and Zn. Soil amendment and aging were conducted to recover leaching soils. The percentages of Cd, Cu, Pb, and Zn removed by column leaching were 90%, 88%, 90%, and 67%, respectively, when 3.9 bed volumes of 50mM EDTA were used. At the pilot scale… CONTINUE READING
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