Comparison of natural humic substances and synthetic ethylenediaminetetraacetic acid and nitrilotriacetic acid as washing agents of a heavy metal-polluted soil.

@article{Soleimani2010ComparisonON,
  title={Comparison of natural humic substances and synthetic ethylenediaminetetraacetic acid and nitrilotriacetic acid as washing agents of a heavy metal-polluted soil.},
  author={Mohsen Soleimani and Mohammad Ali Hajabbasi and Majid Afyuni and Samira Akbar and Julie K Jensen and P. Holm and Ole Kragholm Borggaard},
  journal={Journal of environmental quality},
  year={2010},
  volume={39 3},
  pages={
          855-62
        }
}
Ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), and other synthetic polycarboxylic acids have been shown to possess substantial capacity as washing agents of heavy metal-polluted soils, but they are environmentally problematic. Therefore, a sample of natural soluble humic substances (HS) was tested as a possible substitute. The efficiency of HS to extract cadmium (Cd), copper (Cu), and lead (Pb) from a strongly polluted calcareous urban soil was compared with that of EDTA… CONTINUE READING

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