Use of humates to remediate polluted environments: . ... Picture gallery of the events . ... Interaction of humic substances with metal ions and its implication for remediation of heavy metals polluted environments . Chairperson: Prof. Frimmel . ... Coffee break . ... Influence of metal ions on the activity of soil humics-enzyme complexes. ... Frimmel, F.H. Influence of oxidation on the metal-ion complexation of NOM with respect to remediation. ... Hatfield, K. Quantifying remediation. ...