Adsorption Characteristics of Nitrochlorobenzene onto Yellow River Sediment

摘要：

Adsorption kinetics of nitrochlorobenzene (NCB) in high sediment concentration suspensions (100g/L) of Yellow River demonstrate that an initial steep slope reaching a plateau at a relative slow rate may require days or weeks for complete equilibrations, indicating L-type adsorption isotherms. The sorptive capacity of the sediment is directly related to its organic matter and the particle size. The distribution of adsorbed NCB presents that the adsorbed amount is basically proportional to its organic matter and decreases with the decreasing particle size. The pH and the metal ionic strength also affect NCB adsorption. The distribution of the adsorbed amount is complex with the equilibrium pH, while the adsorped amount of NCB increased with the metal ionic strength, and the increased amount is more for Ca2+ solution than for Na+ solution for the sediment.

关键词： adsorption nitrochlorobenzene Yellow River sediment high sediment concentration metal ionic strength pH

作者: YIN Yanhua

作者单位: The School of Chemistry and Environment, Beijing Institute of Technology, Beijing 100081, China

会议类型: 国际会议

会议名称: 2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-11-13（万方平台首次上网日期，不代表论文的发表时间）