镁铝交联膨润土吸附处理结晶紫废水的研究

以镁铝双金属离子低聚物为交联剂,制备了复合联膨润土,用于处理含结晶紫染料的废水。通过改变废水溶液pH值、吸附剂用量和搅拌处理时间等因素研究了镁铝交联膨润土对结晶紫的吸附特性和处理效果。研究表明,镁铝交联膨润土对阳离子染料结晶紫废水的脱色率较好,可以达到99%以上。此外,还对镁铝交联膨润土与膨润土原土的处理效果进行了比较。结果表明,用镁铝交联剂对膨润土进行改性后吸附能力显著增强,脱色率在98%以上。由于膨润土的储量大、价格低,是一类很有发展前景的优质廉价吸附剂。

Study on Absorption of Crystal Violet with Magnesium-Aluminum Cross-linked Bentonite

Using magnesium-aluminum bimetal ion low polymer as crosslinking agent,the magnesium-aluminum cross-linked bentonite was prepared for treating the wastewater containing crystal violet.the absorptive characteristics and the effection of the new product by changing certain factors,such as the pH value,the time and so on were studied.The result showed that the absorption ability was greatly improved.The decolorization rate of crystal violet could rise to 99 %.