铝土矿改性方法的研究

Study on bauxite modification

以廉价的铝土矿为原料，辅以适当添加剂，经简单处理，在700℃～800℃的温度下灼烧3h，即可制成能够去除水中高浓度SO的高效净水剂。将该净水剂加到适量的高浓度SO（2248mg／L）水中，处理30min，就能达到国家饮用水标准。

By using cheap bauxite as raw material and adding a moderate amount of additive, then burning about 3 hours at 700℃ ~800℃, the modified bauxite was made, which could remove high concentration of sulfate in water. when a amount of modified bauxite was put into water which contains sulfate (2248 mg/L), after reacted 30 minutes, the quality of water could reach national drinking water standard.