摘要
在用Cu2+AI3+Fe3+对膨润土改性中,Fe3+改性的膨润土对甲基橙的吸附性能最好。在振荡20分钟后即可达到 吸附平衡。pH=3-7、用量为3g/L、25℃时对甲基橙的吸附量达到最大。在pH=7及常温条件下,铁基膨润土的用量为11g/ L时,对浓度为250mg/L甲基橙的吸附量和去除率分别为22.2mg/g 98.6％:对浓度为40mg/L的甲基橙去除率达97.1％。
Among the bentonites modified by Cu2+ A13+ Fe3+,the latter showed the best adsorption for Methyl Orange. The absorption equilibrium achieved after only 20 minute oscillation. Maximum adsorption for Methyl Orange at pH=3-7, temperature 25℃ and 3g/L of the reagent. To treat 250mg/L Methyl Orange solution with 11g/1 Fe-based bentonites at pH=7 and ambient temperature, the amount of adsorption and removal % were 22.2mg/L and 98.6% respectively; and the removal % was 97.1 % for a 40mg/L Methyl Orange solution.
出处
《染料与染色》
CAS
2004年第5期304-305,297,共3页
Dyestuffs and Coloration
关键词
膨润土
甲基橙
印染废水
吸附
bentonite
Methyl Orange
dyeing and printing wastewater
adsorption
