Phytoremediation of petroleum polluted soil

被引:49
|
作者
Wang Jing [1 ]
Zhang Zhongzhi [1 ]
Su Youming [1 ]
He Wei [1 ]
He Feng [1 ]
Song Hongguang [1 ]
机构
[1] China Univ Petr, Sch Chem Sci & Engn, Beijing 102249, Peoples R China
基金
中国国家自然科学基金;
关键词
phytoremediation; rhizosphere; microbial number; dehydrogenase activity; catalase activity; petroleum hydrocarbon degeneration;
D O I
10.1007/s12182-008-0026-0
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
An experimental study of the rhizosphere effect on phytoremediation of petroleum polluted soil was carried out with three species of grasses, namely Pannicum, Eleusine indica (L.) Gaerth, and Tall Fescue. After a period of 150 days, this pot experiment showed that the rhizosphere of these three species accelerated the degradation of petroleum hydrocarbons to different extents. The results showed that the number of microorganisms in the rhizosphere increased by three orders of magnitude. The induction of the plant rhizosphere and the coercion influence of petroleum changed the species and activity of microorganisms. The degradation of petroleum hydrocarbons in the rhizosphere was 3-4 times that in implanted soil. The dehydrogenase activity in the rhizosphere was 1.61-2.20 times that in implanted soil, but the catalase activity was 0.90-0.93 times that in implanted soil, and soil moisture content increased by 5% compared with the implanted soil.
引用
收藏
页码:167 / 171
页数:5
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