黄孢展齿革菌菌丝球同时吸附铅镉离子的动力学  

THE KINETICS OF THE SIMULTANEOUS ADSORPTION OF Pb^(2+) AND Cd^(2+) FROM AQUEOUS SOLUTIONS BY PHANEROCHAETE CHRYSOSPORIUM IN THE FORM OF PELLET

作　　者：陈翠雪[1] 李清彪[1] 邓旭[1] 李宝珠[1] 付旬瑶[1] 

机构地区：[1]厦门大学化工系,厦门361005

出　　处：《离子交换与吸附》2003年第2期133-138,共6页Ion Exchange and Adsorption

基　　金：国家教委留学回国人员科研启动基金资助

摘　　要：采用间歇法,利用黄孢展齿革菌菌丝球吸附溶液中的Pb2+ 和Cd2+,研究Pb2+ 和Cd2+ 共存体系中吸附初速率随初始浓度的变化规律。实验结果表明,少量Cd2+ 的存在促进其对Pb2+的吸附,并提高吸附初速率,但随着Cd2+ 初始浓度的增加,促进作用逐渐减弱并转为抑制作用;Cd2+,的吸附初速率随着Pb2+,初始浓度增大而减小;Pb2+,和Cd2+,的吸附初速率都随自身初始浓度的增加而增大。In this paper, the kinetics of the simultaneous adsorption of Pb2+ and Cd2+ from aqueous solutions by phanerochaete chrysosporium in the form of pellet was reported. The effects of initial concentration on the initial adsorption rate were examined. The experimental results showed that Cd2+ of low initial concentration in Pb2+ solution could increase the adsorption initial rate of Pb2+, and promote the adsorption capacity of Pb2+by phanerochaete chrysosporium, but this positive effect decreased gradually and then turned to be negative with the increase of the initial concentration of Cd2+. The initial adsorption rate of Cd2+ decreased while the initial concentration of Pb2+ increased. The initial adsorption rate of Cd2+ and Pb2+ increased while their respective initial concentration increased.

关 键 词：镉离子 动力学 生物吸附 黄孢展齿革菌 同时吸附 铅离子 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程] X172