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Kinetics of Post‐reclamation Boron Dissolution
Author(s) -
Peryea F. J.,
Bingham F. T.,
Rhoades J. D.
Publication year - 1985
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1985.03615995004900040009x
Subject(s) - dissolution , suspension (topology) , soil water , land reclamation , boron , chemistry , kinetics , reaction rate constant , chromatography , nuclear chemistry , soil science , mathematics , environmental science , organic chemistry , physics , history , archaeology , quantum mechanics , homotopy , pure mathematics
The <0.25‐mm particle size fractions of four natively high boron (B) soils were reacted in suspension with a B‐specific exchange resin. By separating the resin from the suspension after selected times of reaction, four subsamples of each soil were obtained, representing increasing degrees of reclamation. The subsamples were reacted with deionized water and release of residual B to the supernatant was measured as a function of time. The data for each soil subsample were plotted according to an integrated form of the Elovich reaction rate equation. The release of B from the soils closely conformed to a linear function of the natural logarithm of time. Linear regression analysis was used to calculate the reaction rate constants for each treatment. The rate of post‐reclamation B dissolution and the equilibrium concentrations of regenerated B were inversely related to the amount of B removed from each soil during reclamation.