农业环境科学学报2011，Vol.30Issue(10)：1985-1990,6.
菲和Cu2+在黑垆土上的吸附及其交互影响
The Interaction Between Phenanthrene and Cu2+ Sorption on Dark Loessial Soil
摘要
Abstract
The Interaction between phenanthrene( PHE) and Cu2+ sorption on dark loessial soil had been investigated using batch equilibrium sorption experimental method. The dynamics of the experimental results showed that the kinetic curves of both PHE and Cu2+ sorption on the dark loessial soils could be well described as pseudo-first-order kinetic equation. The sorption of polycyclic aromatic hydrocarbon (PAHs) on soil usually follows Henry linear isotherm,which was also observed for the sorption of PHE on the soil used in the study in the absence or in the presence of Cu2+. This suggests the dominant mechanism of PHE sorption on dark loessial soil was partition. The presence of Cu2+ in dark loessial soil impedes PHE sorption on dark loessial soil. Whereas Cu2+ sorption isotherm best fits Freundlich empirical equation with or without PHE in dark loessial soil, which means the dominant mechanisms of Cu2+ sorption on the dark loessial soil were surface sorption and specific sorption. The presence of PHE impetused Cu2+ sorption on dark loessial soil. For the effects of pH value on sorption, experimental data obtained indicates that pH was a critical influencing factor for PHE and Cu2+ sorption on dark loessial soil. The amount of Cu2+ adsorbed on the dark loessial soil increased with increase in pH value. In contrast, the PHE adsorptive capacity decreased with an increase in pH value of the solution.关键词
黑垆土/菲/Cu2+/吸附/交互影响/pH值Key words
dark loessial soil/ phenanthrene/ copper ion/ sorption/ interaction/ pH value分类
资源环境引用本文复制引用
钟金魁,赵保卫,朱琨,马锋锋,杨建月,冉婧媛,Obemah David Nartey..菲和Cu2+在黑垆土上的吸附及其交互影响[J].农业环境科学学报,2011,30(10):1985-1990,6.基金项目
国家自然科学基金项目(20577018) （20577018）
长江学者和创新团队发展计划项目(IRT0966) （IRT0966）
甘肃省自然科学研究基金计划项目(1010RJZA068,1010RJZA070) （1010RJZA068,1010RJZA070）
