【摘要】 对萘在水葫芦根系的吸附过程进行模拟研究 ,结果表明 ,新鲜水葫芦根系对萘不仅具有吸附作用 ,而且还具有吸收或根际微生物降解等作用 ;水葫芦根系吸附萘的初始速率与浓度符合一级反应动力学 ;吸附过程可用Langmuir公式表示的单分子层吸附模型描述。更多还原

【Abstract】 Experiments were conducted to investigate the adsorption of naphthalene on Eichhornia crassipes Solm roots. The results showed that the initial adsorption rate against concentration of naphthalene fit the first order kinetic model and adsorption process could be well described by Langmuir equation, belonging to mono layer adsorption. The results also indicated that removal of naphthalene in water was attributed to the adsorption of fresh roots and the biodegradation of microorganism existed on roots surface.更多还原