Process evaluation for optimization of EDTA use and recovery for heavy metal removal from a contaminated soil.

@article{Lim2005ProcessEF,
  title={Process evaluation for optimization of EDTA use and recovery for heavy metal removal from a contaminated soil.},
  author={T T Lim and Peng-Cheong Chui and K. H. Goh},
  journal={Chemosphere},
  year={2005},
  volume={58 8},
  pages={1031-40}
}
This study aimed to establish an optimized, closed loop application of ethylenediaminetetraacetic acid (EDTA) in heavy metal removals from a contaminated soil through integrating EDTA recovery/regeneration and metal precipitation processes in the treatment train. Three divalent heavy metals were investigated, namely, Pb, Cd, and Ni. The extractability of the metals by EDTA followed the decreasing order of CdPb>>Ni. The first part of this study was to search for the optimal use of the fresh EDTA… CONTINUE READING