PHOSPHATE RELEASE FROM SYNTHETIC GLASSES AND INHIBITION OF PHOSPHATE FIXATION ON FERRIC HYDROXIDE

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概要

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• Release of phosphate from glasses in the systems basalt-K_3PO_4,granite-K_3PO_4,K_2SiO_3Na_2SiO_3-apatite has been studied. Equilibrium leachate concentrations in water are attained in 3-5 hr(K^+, 5-60μg cm^<-3>; PO_4^<3->, 2-15μg cm^<-3>). Glass composition, pH, and grain size influence solubility.Phosphate fixation on freshly precipitated Fe(OH)_3 and on iron-rich laterites appear to be inhibited when glasses are rich in Na-K silicates. This may be due to surface modification of Fe(OH)_3 by the formation of sodium ferric silicates which are known to be stable at low temperatures.

• 社団法人日本土壌肥料学会の論文

著者

• Fyfe William

  Geology Department University Of Western Ontario

• KRONBERG Barbara

  Geology Department, University of Western Ontario

• LEONARDOS Othon

  Geoscience Department, University of Brasilia

• Leonardos Othon

  Geoscience Department University Of Brasilia

• Kronberg Barbara

  Geology Department University Of Western Ontario

関連論文

• PHOSPHATE RELEASE FROM SYNTHETIC GLASSES AND INHIBITION OF PHOSPHATE FIXATION ON FERRIC HYDROXIDE

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