A Zirconium(IV) oxide hydrate and a complex was prepared from Zirconium(IV) oxide hy-drate and granular active carbon, and the adsorptive power of adsorbents to orthophosphateion was investigated.
It was found that the both adsorbents had a great ad...
A Zirconium(IV) oxide hydrate and a complex was prepared from Zirconium(IV) oxide hy-drate and granular active carbon, and the adsorptive power of adsorbents to orthophosphateion was investigated.
It was found that the both adsorbents had a great adsorptive power to orthophosphate ion.
Also, it was found that the complex adsorbent obtained had a much greater adsorptive power to orthophosphate ions than that of Zirconium(IV) oxide hydrate.
Thus, it was expected to the applications of removal of orthophosphate ion in wastewater by the complex adsorbent.
For Zirconium(IV) oxide hydrate, maximum orthophosphates adsorption occured at pH 3 and that occured at pH 5 for the complex adsorbent.
The equilibrium adsorption studies support the existence of this adsorption isotherm, which fits the empirical Freundlich isotherm, comparatively.