紫花苜蓿、白腐真菌和蚯蚓联合去除污染土壤中的菲
Removal of phenanthrene in contaminated soil by combination of alfalfa, white-rot fungus, and earthworms.
作者信息
Deng Shuguang, Zeng Defang
机构信息
School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
出版信息
Environ Sci Pollut Res Int. 2017 Mar;24(8):7565-7571. doi: 10.1007/s11356-017-8466-y. Epub 2017 Jan 23.
The aim of this study was to investigate the removal of phenanthrene by combination of alfalfa, white-rot fungus, and earthworms in soil. A 60-day experiment was conducted. Inoculation with earthworms and/or white-rot fungus increased alfalfa biomass and phenanthrene accumulation in alfalfa. However, inoculations of alfalfa and white-rot fungus can significantly decrease the accumulation of phenanthrene in earthworms. The removal rates for phenanthrene in soil were 33, 48, 66, 74, 85, and 93% under treatments control, only earthworms, only alfalfa, earthworms + alfalfa, alfalfa + white-rot fungus, and alfalfa + earthworms + white-rot fungus, respectively. The present study demonstrated that the combination of alfalfa, earthworms, and white-rot fungus is an effective way to remove phenanthrene in the soil. The removal is mainly via stimulating both microbial development and soil enzyme activity.
本研究的目的是调查紫花苜蓿、白腐真菌和蚯蚓联合作用对土壤中菲的去除效果。进行了一项为期60天的实验。接种蚯蚓和/或白腐真菌可增加紫花苜蓿生物量以及紫花苜蓿中菲的积累量。然而，接种紫花苜蓿和白腐真菌会显著降低蚯蚓体内菲的积累量。在对照处理、仅接种蚯蚓、仅种植紫花苜蓿、蚯蚓+紫花苜蓿、紫花苜蓿+白腐真菌以及紫花苜蓿+蚯蚓+白腐真菌处理下，土壤中菲的去除率分别为33%、48%、66%、74%、85%和93%。本研究表明，紫花苜蓿、蚯蚓和白腐真菌联合是去除土壤中菲的有效方法。去除主要是通过刺激微生物生长和土壤酶活性来实现的。
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