文档介绍：Adsorption and desorption behaviors of nitrobenzene
and aniline by wetland soil
Yanyu SONG, Changchun SONG *
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences
Changchun, China
e-mail: ***@neigae.
Abstract—Batch equilibrium experiments were performed to of the desorption is a key factor in the interpretation of the
assess adsorption and desorption characteristics of nitrobenzene sorption phenomenon, it indicates to some extent the
and aniline by wetland soil. The results showed that wetland soil bioavailable fraction in both the water and the sediment
had strong adsorption capability for nitrobenzene and aniline, phase[12].
adsorption and desorption of nitrobenzene and aniline by Wetlands have been widely used on treating agricultural,
different types of wetland soil were different. The linear and municipal, industrial waste. Because of their special physical
Fruendlich model were fit for describing the adsorption and chemical properties, wetland soil showed varied
behavior. Adsorption coefficient (Kf) of nitrobenzene or aniline ecological functions to purify or absorb toxic substances in
and anic matter (SOM) content were significant positively wetland ecosystem[13], such as pesticides[14-16], nutrients[5,17,18],
correlated (R2=, p< for nitrobenzene and R2=
heavy metals[19-21]. However, few st