水葫芦根系对苯的吸附过程研究  

Study on Adsorption of Benzene by Eichhornia Crassipes Solms Root

作　　者：刘建武[1] 林逢凯[1] 王郁[1] 胥峥[1] 张啸[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237

出　　处：《化工环保》2002年第6期315-319,共5页Environmental Protection of Chemical Industry

摘　　要：对苯在水葫芦根系的吸附过程进行模拟研究结果表明:新鲜水葫芦根系对苯不仅具有吸附作用,而且还具有吸收或根际微生物降解等作用;水葫芦根系吸附苯的初始速率与浓度符合一级反应动力学;平衡吸附量与苯溶液浓度成正比;吸附过程可用Langmuir公式表示的单分子层吸附模型描述。Simulated adsorption of benzene by eichhornia crassipes solms root has been studied. The results show that benzene can be not only adsorbed, but also absorbed by the fresh root in water and degraded by microbe on root; the initial adsorption rate of benzene conforms to first order kinetic model; equilibrium adsorption quantity conforms to direct ratio with benzene concentration; and the adsorption process belongs to monolayer adsorption and can be well described by Langmuir model.

关 键 词：水葫芦根系 苯 吸附 水体污染 净化 水生植物 

分 类 号：X52[环境科学与工程—环境工程]