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WATER RESOURCES RESEARCH, VOL. 19, NO. 3, PAGES 725–731, 1983

Kinetic Analysis of Strontium and Potassium Sorption Onto Sands and Gravels in a Natural Channel

Kenneth E. Bencala

U. S. Geological Survey, Menlo Park, California 94025


Alan P. Jackman

U. S. Geological Survey, Menlo Park, California 94025


Vance C. Kennedy

U. S. Geological Survey, Menlo Park, California 94025


Ronald J. Avanzino

U. S. Geological Survey, Menlo Park, California 94025


Gary W. Zellweger

U. S. Geological Survey, Menlo Park, California 94025


Abstract

A kinetic, first-order mass transfer model was used to describe the sorption of strontium onto sand- and gravel-sized streambed sediments. Rate parameters, empirically determined for strontium, allowed for the prediction of potassium sorption with moderate success. The model parameters varied significantly with particle size. The sorption data were collected during an experimental injection of several elements into a small mountain pool-and-riffle stream. The sorption process onto sand- and gravel-sized sediment was relatively slow compared to changes in the dissolved concentrations.

Received 11 May 1982; accepted 20 January 1983.

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Citation: Bencala, K. E., A. P. Jackman, V. C. Kennedy, R. J. Avanzino, and G. W. Zellweger (1983), Kinetic Analysis of Strontium and Potassium Sorption Onto Sands and Gravels in a Natural Channel, Water Resour. Res., 19(3), 725–731.