摘要
以不同的Mg^2+与Al^3+摩尔比制备一系列的镁-铝水滑石,考察镁-铝水滑石对单一品种模拟分散染料废水的脱色效果。实验结果表明,以n(Mg^2+):n(Al^3+)为3:1制得的镁-铝水滑石对模拟分散染料废水的脱色效果最好;脱色处理后的镁-铝水滑石再生后可重复使用,它对模拟分散染料废水的脱色效果与新的镁-铝水滑石的脱色效果几乎没有差别;在模拟分散染料废水pH为10~11、镁-铝水滑石的加入量为1.0g/L、反应2h的条件F,模拟分散染料废水的脱色率为98%。
A series of magnesium-aluminum hydrotalcite were prepared with different mol ratio of Mg^2+ to Al^3+. The decolorization effect of magnesium-aluminum hydrotalcite on simulated wastewater containing single dispersed dye was investigated. The results show that the decolorization effect of magnesium-aluminum hydrotalcite with mol ratio of Mg^2+ to Al^+3 3 : 1 is the best, and the regenerated magnesium-aluminum hydrotalcite can be reused without different decolorization effect. Under the conditions of wastewater pH 10 - 11, dosage of magnesium-aluminum hydrotalcite 1.0 g/L and reaction time 2 h, the decolorization rate of simulated wastewater containing dispersed dye is 98 %.
出处
《化工环保》
CAS
CSCD
北大核心
2006年第2期145-147,共3页
Environmental Protection of Chemical Industry
基金
四川省教育厅自然科学重点项目(2004A113)
四川省重点学科建设项目(SZD0412)
关键词
镁-铝水滑石
脱色
分散染料
废水处理
magnesium-aluminum hydrotalcite
decolorization
dispersed dye
wastewater treatment