Metal-solid interactions in the marine environment: Estimating apparent equilibrium binding constants

Details Metal-solid interactions in the marine environment: Estimating apparent equilibrium binding constants Metal-solid interactions in the marine environment: Estimating apparent equilibrium binding constants

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47.1091b&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 47, Issue 6, pp.1091-1098

Computer Science

2

Scientific paper

Surface chemistry concepts developed for heterogeneous oxide surfaces are illustrated with Cu, Cd, and Zn adsorption data on a well defined, model surface--goethite ( FeOOH)--and then applied to define the interaction or Zn with interfacial sediments from the Guatemala Basin at MANOP site H. Apparent equilibrium binding constants which describe metal associations with a surface, whose sites are composed of a spectrum of binding energies, are independent of adsorption density when sites are available in excess, but dependent on adsorption density when sites are limited. This conclusion makes it especially important to properly apply laboratory experimental results to describe adsorption processes in the natural environment. Therefore, a means for estimating the maximum adsorption density of an element on natural particles is discussed and used to estimate the quantity of Zn in interfacial sediments at MANOP site H which can be ascribed to the process of adsorption.

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