Desorption Characteristics of Chlorobenzene from Clay
Luo Zejiao
Li Longyuan
Yu Jiang
Abstract：The chlorobenzene (CB)desorption characteristics on clay matrix at room temperature condition were investigated to examine the CB??s migration under a low concentration of ethanol.To find out if the CB polluted the soil (clay)of the Chemical Factory at Wuhan,Hubei Province,China,three series of experiments were performed in this study.The first is the best leac-hing filtering condition.The second is the verification of the result of the best leaching condition and the third is testing the de-sorption kinetics of CB on clay.The results show that the solution to soil ratio (mL/g)was 25∶1 and ethanol concentration of 10% had the best leaching condition at 2 h at the room temperature.Moreover,the extraction rate of the chlorobenzene in soil was 90% under the best leaching condition.It was found that all desorption isotherm data of CB in clay could be best described with Freundlich equations.Using a low concentration of ethanol to restore the CB polluted clay is practicable.It can prevent sec-ondary pollution while retaining the soil function as well.
Keywords：chlorobenzeneclayethanolleachingdesorption kineticspollution detection
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 933-940 )