Zinc and cadmium mobility in sand: effects of pH, speciation, cation exchange capacity (CEC), humic acid and metal ions

@inproceedings{Warwick1998ZincAC,
  title={Zinc and cadmium mobility in sand: effects of pH, speciation, cation exchange capacity (CEC), humic acid and metal ions},
  author={Peter Warwick and Allan E. Hall and Vanessa Pashley and James van der Lee and Andr{\'e} Maes},
  year={1998}
}
Abstract This study was undertaken to investigate the ways in which pH, speciation, cation exchange capacity (CEC), humnic acid and added metals influence Zn and Cd mobilities in porous media. The studies were conducted using columns of pure sand and sand in admixture with goethite. The mobile phases were based on aqueous NaCl solution. In all cases Zn and Cd were found to be more mobile at pH = 4.0 than pH = 6.5. Speciation calculations were used to rationalise all the observations… CONTINUE READING

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