【摘要】 利用络合剂三聚磷酸钠在微波条件下对凹凸棒石粘土进行改性。改性后的凹土用来处理废水中的重金属离子,考察了pH值、吸附时间、凹土用量等因素对废水中重金属离子处理的影响。结果表明经络合剂修饰的凹土对重金属离子废水的处理明显优于未进行络合修饰的凹土。最佳条件下对Pb2+、Cd2+、Mn2+的去除率都达到90%以上。更多还原

【Abstract】 Attapulgite clay was modified by coordinated ligands sodium ripolyphosphate under microwave irradiation.And the modified attapulgite clay was used to deal with the heavy metal ions in the waste water.The influence of experimental parameters such as pH,reaction time and the amount of attapulgite clay was investigated.Experimental results show that the modified attapulgite clay is better than unmodified attapulgite clay in dealing with waste water containing heavy metal ions.90% of the heavy metal ions such as Pb2+,Cd2+ and Mn2+ can be removed off under optimum conditions.更多还原