小球藻对镉离子的吸附速率方程  

Sorption Rate Equation of Chlorella vulgaris for Cadmium Ion

作　　者：李英敏[1] 杨海波[1] 吕福荣[1] 刘艳[1] 张欣华[1] 于媛[1] 

机构地区：[1]大连大学化学与化学工程系,辽宁大连116622

出　　处：《生物技术》2005年第1期70-71,共2页Biotechnology

基　　金：辽宁省博士启动基金资助项目 (0 0 1 0 59)

摘　　要：研究了小球藻对Cd2 + 的吸附动力学。研究表明 ,小球藻对Cd2 + 有一定的吸附作用 ,在吸附的起始阶段 ,吸附速率较快 ,且随温度的升高吸附速率增大 ,吸附过程在 2 0min内达到平衡。结果还表明 ,该吸附是简单的一级反应 ,并由此建立了吸附反应的速率方程 ,推算出吸附反应的活化能Ea=31.4 2kJ mol。The kinetics for Cd(2+) on Chlorella vulgaris was studied.The results showed that the biosorbent had a certain adsorbing effect on Cd(2+),At the beginning of the sorption,the sorption rate for Cd(2+) was considerably high and the sorption rate was enhanced with the increasing temperature.It was also shown that the reaction order of sorption was 1,Sorption rate equations were founded,the activation energy Ea=31.42kJ/mol.

关 键 词：小球藻 CD^2+ 吸附 吸附速率方程 

分 类 号：Q947.6[生物学—植物学]