【摘要】 介绍了一种采用针铁矿的天然矿物原料吸附酸性矿井废水中硫酸根离子的试验研究。试验结果表明,该矿物原料对硫酸根离子具有较强的吸附性能;通过正交试验研究了此矿物料的吸附特性与吸附时间、pH值、吸附剂的加药量等因素之间的关系,确定了它对SO42-吸附的适合条件,及pH值是影响吸附量的最主要因素。同时,与柱撑蒙脱石对原工业废水中SO42-的吸附情况进行了对比。在此基础上,确定了这种天然矿物原料对SO42-有很强的吸附能力,可以作为去除酸性矿井废水中硫酸根离子的一种有效吸附剂。更多还原

【Abstract】 The absorption capacity of a natural mineral adsorbent has been investigated for sulfate reduction in acid mine drainage.The results of orthogonal experiment show that the adsorbent has strong ability of absorbing sulfate.Orthogonal test was carried out to study the relation between adsorbency and adsorbing time,pH value and dosage of adsorbent.The test result determines the suitable adsorbing conditions and shows that performance of adsorbent is mainly influenced by the pH value.Moreover,the adsorbing ability of the mineral adsorbent is compared with that of montmorillonite.The natural mineral is a kind of good adsorbent in eliminating the sulfate in acid mine drainage effectively.更多还原