不同化学修饰方式对啤酒酵母菌吸附铜离子的影响

Effect of Different Chemical Modification Methods on Adsorption of Copper Ions by Saccharomyces Cerevisiae

本研究利用啤酒酵母菌具有吸附废水中的重金属离子这一特性,探讨啤酒酵母菌经氢氧化钠、丙酮、苯酚及高锰酸钾的化学修饰后,采用海藻酸钠一明胶包埋法固定化处理啤酒酵母菌,去吸附重金属铜离子,通过用紫外分光光度法测出吸附后的铜离子浓度,经计算得到啤酒酵母菌吸附铜离子的效率,为啤酒酵母菌治理重金属污染技术提供理论依据。实验结果表明经过氢氧化钠、丙酮、苯酚及高锰酸钾修饰后的啤酒酵母菌对铜离子吸附均有促进作用。

In this study,Saccharomyces Cerevisiae was used to adsorb heavy metal ions in wastewater.After chemical modification of Saccharomyces Cerevisiae by sodium hydroxide,acetone,phenol and potassium permanganate,Saccharomyces Cerevisiae was immobilized by sodium alginate-gelatin embedding method to treat Saccharomyces Cerevisiae and adsorb heavy copper ions.The copper ion concentration after adsorption was measured by ultraviolet spectrophotometry.The efficiency of adsorption of copper ions by Saccharomyces Cerevisiae was calculated,which provided a theoretical basis for the technology of heavy metal pollution by Saccharomyces Cerevisiae.The experimental results show that Saccharomyces Cerevisiae modified by sodium hydroxide,acetone,phenol and potassium permanganate can promote the adsorption of copper ions.