The kinetics of the reaction of ozone with phenanthrene in unsaturated soils

被引:32
作者
Hsu, MIY [1 ]
Masten, SJ [1 ]
机构
[1] Michigan State Univ, Dept Civil & Environm Engn, E Lansing, MI 48824 USA
关键词
ozone; phenanthrene; ozonation; unsaturated soils; soil vapor extraction;
D O I
10.1089/ees.1997.14.207
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The kinetics of the heterogeneous reactions of gaseous ozone with soil water, the soil matrix, and phenanthrene were investigated in a cycling batch reactor. The rate of ozone decomposition in soil water is described as a first-order rate expression with respect to the gaseous ozone concentration, The rate expression for the reaction of gaseous ozone with the soil matrix in moist soil can be described as second order overall, first order with respect to both gaseous ozone and soil organic matter concentrations. The rate of reaction for ozone with the soil matrix was observed to be independent of the ozone gas pore velocity (over the range of 0.18 to 23.4 cm/s), indicating that the overall reaction rate is dominated by chemical reactions rather than by interfacial mass transfer. During ozonation of a phenanthrene-contaminated soil, two pseudo-first-order kinetic regions with respect to the concentration of phenanthrene were observed. This is thought to be due to the nonuniformity of the surface distribution of solid phenanthrene, which may be present as material that is either floating on the soil water or is trapped in the soil pores.
引用
收藏
页码:207 / 218
页数:12
相关论文
共 42 条
[1]   HETEROGENEOUS POLYCYCLIC AROMATIC HYDROCARBON DEGRADATION WITH OZONE ON SILICA-GEL CARRIER [J].
ALEBICJURETIC, A ;
CVITAS, T ;
KLASINC, L .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (01) :62-66
[2]   QUINOLINE OZONATION IN AQUEOUS-SOLUTION [J].
ANDREOZZI, R ;
INSOLA, A ;
CAPRIO, V ;
DAMORE, MG .
WATER RESEARCH, 1992, 26 (05) :639-643
[3]  
BELL CE, 1989, PETROLEUM CONTAMINAT, V2
[4]  
Bird R.B., 2006, TRANSPORT PHENOMENA, Vsecond, DOI 10.1002/aic.690070245
[5]   NONEQUILIBRIUM TRANSPORT OF ORGANIC-CHEMICALS - THE IMPACT OF PORE-WATER VELOCITY [J].
BRUSSEAU, ML .
JOURNAL OF CONTAMINANT HYDROLOGY, 1992, 9 (04) :353-368
[6]   REACTION-RATES OF POLYNUCLEAR AROMATIC-HYDROCARBONS WITH OZONE IN WATER [J].
BUTKOVIC, V ;
KLASINC, L ;
ORHANOVIC, M ;
TURK, J ;
GUSTEN, H .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1983, 17 (09) :546-548
[7]  
Carberry J.J., 1976, CHEM CATALYTIC REACT
[8]  
Carter D. L., 1986, Methods of soil analysis. Part 1. Physical and mineralogical methods, P413
[9]  
CARTER JC, 1990, PETROLEUM CONTAMINAT, V3
[10]   PHOTOOXIDATION OF SELECTED POLYCYCLIC AROMATIC-HYDROCARBONS AND PYRENEQUINONES COATED ON GLASS SURFACES [J].
COPE, VW ;
KALKWARF, DR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1987, 21 (07) :643-648