s-Triazine Adsorption Studies: Ca-H-Humic Acid1
- J. T. Gilmour and
- N. T. Coleman2
Small amounts of Ca-H-humic acid suspension in dialysis bags were immersed in dilute CaCl2 which contained 1.33 × 10-5M to 6.67 × 10-5M atratone, atrazine, prometone, or prometryne. Adsorption isotherms were linear. Increases in CaCl2 concentration from 10-4M to 10-2M or larger Ca saturation (10 to 100% Ca) of humic acid resulted in less s-triazine adsorption. Greater adsorption occurred when the amount of Ca-humate at a specified Ca saturation was increased. An ionexchange treatment of adsorption quantitatively predicted adsorption changes with change in s-triazine concentration, CaCl2 concentration, and Ca saturation of the humic acids.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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