[Solubilization thermodynamics and kinetics of anthracene in the presence of humic acid].
The solubilization thermodynamics and kinetics characteristics of hydrophobic pollutants anthracene in the humic acid micellar solutions have been investigated by using batch equilibrium test. The results showed that the solubilization rate of anthracene was significantly enhanced with increasing temperature. The solubilization process of anthracene was spontaneous, endothermic and entropy increasing with deltaG(theta) = -1.682 kJ/mol, deltaH(theta) = 11.96 kJ/mol, deltaS(theta) = 45.78 J/(K x mol) in 25 degrees C, as well as deltaG(theta) = -2.140 kJ/mol and -2.598 kJ/mol in 35 degrees and 45 degrees C, respectively. The solubilization data of anthracene well fitted Elovich kinetics model.
Wu
Ying-qin
YQ
Key Laboratory of Petroleum Resources Research, Chinese Academy of Sciences, Lanzhou 730000, China. wuyingqin001@163.com
Chen
Hui
H
Xia
Yan-qing
YQ
Wang
Yong-li
YL
D000873:Anthracenes / Q000737:chemistry*; D001673:Biodegradation, Environmental; D006812:Humic Substances; D007700:Kinetics; D012989:Soil Pollutants / Q000737:chemistry*; D012995:Solubility; D013816:Thermodynamics
D000873:Anthracenes; D006812:Humic Substances; D012989:Soil Pollutants; C034020:anthracene