| 摘要 |
<p>A method of treating an aqueous composition comprises mixing said aqueous composition with a smectite clay at a pH below (9) and awith a hydrotalcite-like material or a reaction mixture capable of forming a hydrotalcite-like material and subsequently separating the treated aqueous composition from solid materials therein. Preferably, a polymeric flocculant is also added to the aqueous composition, especially after the pH of the aqueous composition has been adjusted to a value above (11).</p> |
