膨润土在工业废水处理中的应用研究进展

Applications of Bentonite in the Industrial Wastewater Treatment

介绍了膨润土基本性质,阐述了膨润土及改性膨润土对工业废水中有机物和无机物处理等方面的应用现状,对比了膨润土改性前后对工业废水中所含致污物质的处理效果,表明了改性膨润土在处理工业废水上的有效作用:膨润土经活化或改性后可用于处理有色染料废水,有机膨润土对水中有机物和重金属离子的效果的去除率比原土高,但膨润土处理较高含量的无机非金属废水效果不理想。对膨润土的应用前景及回收利用问题进行了展望,认为如将使用过的膨润土直接用作建筑材料,如用于制砖和铺路以及回填至垃圾填埋场,可能更具有实用价值。

The basic properties of bentonite is presented.Then current applications of bentonite and modified bentonite in handling organic matter, inorganic matter in industrial wastewater are introduced in details. Through comparison of effectiveness of bentonite and modified bentonite in handling above-mentioned materials in industrial wastewater, value of modified bentonite is fully confirmed. Recycle of bentonite is discussed and future application future of bentonite is predicted in the end.