摘要
研究了Cu(II) 在泉州湾滩涂沉积物上的吸附行为。探讨了pH和温度对吸附作用的影响,测定了其吸附等温线。实验结果表明,常温下Cu(II) 在泉州湾滩涂沉积物上的吸附平衡时间约需3.5 小时;吸附量随pH的升高先增大而后减少,pH=6.0左右时达最大;吸附量随温度的升高而增大;其吸附行为可以很好地用Langmuir型吸附等温线来描述。并在此基础上初步探讨了Cu(II)在泉州湾滩涂沉积物上的吸附机理。
The sorption properties of Cu(II) on tidal flat sediments in the Quanzhou Gulf were studied in this paper. The effects of pH and temperature on the sorption were mainly discussed. The sorption isotherm was determined at the same time. The results showed that the time of sorption equilibration was about 3.5 h. The sorption capacity increased with pH and then decreased. It reached the highest level when the pH was about 6.0. The sorption capacity increased with temperature. The sorption behavior of Cu(II) on tidal flat sediments in the Quanzhou Gulf could be well described by Langumuir sorption isotherm. And the sorption mechanism of Cu(II) on tidal flat sediments in the Quanzhou Gulf was preliminarily discussed.
出处
《地球与环境》
CAS
CSCD
北大核心
2005年第1期93-96,共4页
Earth and Environment
基金
福建省自然科学基金(D0310017)
