固定化啤酒酵母废菌体吸附Pb^(2+)研究  

A Study on Biosorption of Pb^(2+) by ImmobilizedSaccharomyces Cerevisiae

作　　者：武运[1] 杨海燕[1] 任娟[1] 刘长春[1] 

机构地区：[1]新疆农业大学食品科学学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2008年第3期78-81,共4页Journal of Xinjiang Agricultural University

摘　　要：用海藻酸钠与明胶混合固定啤酒酵母废菌体,作为生物吸附剂吸附Pb2+,研究啤酒酵母吸附重金属离子过程中的各种影响因素,包括吸附时间、pH值、啤酒酵母浓度等对吸附效果的影响。实验结果表明,固定化啤酒酵母吸附Pb2+的速度非常快。啤酒酵母浓度越高吸附量越大。pH值对吸附作用有着较大的影响,吸附的最佳pH值范围是4~7,pH值为6效果最好。温度对吸附的影响不大,在常温条件下即能较好吸附。In this study, saccharomyces cerevisiae waste biomass was entrapped with the mixture of alginate and gelatin. The biosorption of saccharomyces cerevisiae of Pb^2＋ in single metal system was studied under the different conditions, such as biosorption time, pH, density of bear yeast. The results indicated that the biosorption procession was very fast, pH value had great effect on biosorption, a proper pH scope was at 4-7, the maximum biosorption capacity of unit biomass reached pH 6. The temperature affected the biosorption in a small extent.

关 键 词：生物吸附 啤酒酵母 PH值 PB^2+ 

分 类 号：X703.1[环境科学与工程—环境工程]