Adsorption experiments were carried out on each solid exceptAlx(OH)y-Montm, whose adsorption abilitywas previouslyproven to be very low, as seen above.Results are shown in Figs. 6a and 6b. Under acidic conditions(3at more neutral pH values (6adsorbed. This agrees with data from Lombi et al. (23), andwith other results obtained on carbon-based adsorbents and onzerovalent iron (3, 33). TixHy-Montm was the least efficient matrixin both cases. As for HFO, the results were similar to thosedescribed by Wilkie and Hering (34).For basic pH values (pH>10), the pillared clays were damaged(changes in solutions colour and solids aspect) and arsenicelimination from the aqueous phase decreased.
การแปล กรุณารอสักครู่..
![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)