文摘

重金属的影响(Cu2 + Ni2 + Pb2 +)的吸附基本蓝色41到死链霉菌属Rimosus

作者(年代):Yeddou-Mezenner N和Atmani F

本研究的可行性进行了探讨使用死链霉菌属Rimosus作为删除biosorbent基本蓝色41在不同实验条件下。各种因素的影响,如初始底物浓度,溶液pH值和重金属共存(Cu2 + Ni2 + Pb2 +), BB41吸附重金属的研究。平衡发生在大约30分钟。朗缪尔和弗伦德里希模型被用来描述等温线数据;弗伦德里希模型描述了等温线数据的高相关系数(r2 > 0, 98)。最大的单层吸附重金属的能力biosorbent材料被发现为68.02毫克/克。同时,观察到intra-particle扩散是不是唯一的速率控制步骤。吸附机制可能是由于之间的离子交换和络合染料离子和功能组死生物质表面上。最后提出biosorbent被成功用于BB41脱色的重金属的存在。是决定死链霉菌属Rimosus显示更好的吸附性能对二进制吸附系统中基本的蓝色41博士更高的铜、铅、镍造成了7.8%,分别吸附重金属离子BB41增加4.7%和1.6%。 The effect of the presence of single metal ion concentration on the biosorption of biomass was investigated at an initial pH value of 8.5. The rate of kinetic processes of single and binary systems onto dead Streptomyces Rimosus was described by using three kinetics adsorption models: the pseudo-first order, pseudo-second order and intra particle diffusion. The pseudo-second-order model was the best choice among the kinetic models to describe the biosorption behaviour of single and binary system onto dead Streptomyces Rimosus.