微生物发酵米糠对Cd^(2+)的吸附研究  

Research of Microbial Fermentation of Rice Bran on the Adsorption of Cd^(2+)

作　　者：盛姣[1] 冯贤 曾桂华[1] 郭海彦[1] 

机构地区：[1]长沙环境保护职业技术学院,湖南长沙410004 [2]玉林出入境检验检疫局,广西玉林537000

出　　处：《广州化工》2011年第20期75-76,113,共3页GuangZhou Chemical Industry

基　　金：湖南省科技厅科学研究项目(2010SK3049)

摘　　要：以微生物发酵米糠为吸附剂,研究了吸附剂的用量、溶液温度、Cd2+浓度、溶液pH值以及吸附时间对吸附剂吸附性能的影响。研究结果表明,微生物发酵米糠对Cd2+有较好的吸附效果,吸附率达93.8%。其最佳吸附条件为:微生物发酵米糠用量20 g/L,温度30℃,pH=3,Cd2+质量浓度低于50 mg/L,吸附平衡时间60 min。Microbial fermentation of rice bran was applied to absorbing Cd2＋.The effects of the dosage of adsorption,solution temperature,Cd2＋ concentration,pH value,adsorption time on adsorbing Cd2＋ were discussed.The research result showed microbial fermentation of rice bran had good adsorption to Cd2＋,and the adsorptive rate reached 93.8%.Its best adsorption conditions were the dosage of microbial fermentation of rice bran 20 g/L,solution temperature 30℃,pH=3,Cd2＋ concentration below 50 mg/L,and adsorption equilibrium time 60 min.

关 键 词：微生物发酵米糠 Cd2+ 吸附 

分 类 号：TQ920.1[轻工技术与工程—发酵工程]