Abstract
Humic and fulvic acids were extracted from large volumes of three different groundwaters. After purification they were characterised in terms of proton-binding properties, molecular weight, UV spectra and trace impurities. Conditional stability constants were measured for fulvic and humic binding with cobalt, nickel, calcium and uranium. From these, intrinsic binding constants were calculated using Humic Ion-Binding Model V which was found to describe the dependence of binding strength on pH and ionic strength reasonably well. Species distributions in the groundwaters were calculated and the effects of competition with alkali earths are discussed. All the experimental data are reported in a separate volume (Appendix A and B) so that they are available for testing other models. (author).
Higgo, J J.W.;
Davis, J;
Smith, B
[1]
- British Geological Survey, Keyworth (United Kingdom). Fluid Processes Research Group; and others
Citation Formats
Higgo, J J.W., Davis, J, and Smith, B.
Comparative study of humic and fulvic substances in groundwaters. Pt. 3. Metal complexation with humic substances.
United Kingdom: N. p.,
1992.
Web.
Higgo, J J.W., Davis, J, & Smith, B.
Comparative study of humic and fulvic substances in groundwaters. Pt. 3. Metal complexation with humic substances.
United Kingdom.
Higgo, J J.W., Davis, J, and Smith, B.
1992.
"Comparative study of humic and fulvic substances in groundwaters. Pt. 3. Metal complexation with humic substances."
United Kingdom.
@misc{etde_10153754,
title = {Comparative study of humic and fulvic substances in groundwaters. Pt. 3. Metal complexation with humic substances}
author = {Higgo, J J.W., Davis, J, and Smith, B}
abstractNote = {Humic and fulvic acids were extracted from large volumes of three different groundwaters. After purification they were characterised in terms of proton-binding properties, molecular weight, UV spectra and trace impurities. Conditional stability constants were measured for fulvic and humic binding with cobalt, nickel, calcium and uranium. From these, intrinsic binding constants were calculated using Humic Ion-Binding Model V which was found to describe the dependence of binding strength on pH and ionic strength reasonably well. Species distributions in the groundwaters were calculated and the effects of competition with alkali earths are discussed. All the experimental data are reported in a separate volume (Appendix A and B) so that they are available for testing other models. (author).}
place = {United Kingdom}
year = {1992}
month = {Dec}
}
title = {Comparative study of humic and fulvic substances in groundwaters. Pt. 3. Metal complexation with humic substances}
author = {Higgo, J J.W., Davis, J, and Smith, B}
abstractNote = {Humic and fulvic acids were extracted from large volumes of three different groundwaters. After purification they were characterised in terms of proton-binding properties, molecular weight, UV spectra and trace impurities. Conditional stability constants were measured for fulvic and humic binding with cobalt, nickel, calcium and uranium. From these, intrinsic binding constants were calculated using Humic Ion-Binding Model V which was found to describe the dependence of binding strength on pH and ionic strength reasonably well. Species distributions in the groundwaters were calculated and the effects of competition with alkali earths are discussed. All the experimental data are reported in a separate volume (Appendix A and B) so that they are available for testing other models. (author).}
place = {United Kingdom}
year = {1992}
month = {Dec}
}