【作者】 王文婷； 王云海； 赵景联；

【Author】 WANG Wenting,WANG Yunhai,ZHAO Jinglian(Department of Environmental Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China)

【机构】 西安交通大学能源与动力工程学院；

【摘要】 研究了与未添加膨润土相比,在油污土壤中混合5%的有机膨润土能使石油降解率从22%增加到40%。在石油污染土壤中种植紫花苜蓿时,低浓度污染时能促进紫花苜蓿出芽,当石油浓度大于1.5%时,对出芽有抑制作用,有机膨润土的添加能减小高浓度石油污染对紫花苜蓿出芽的抑制作用。更多还原

【Abstract】 Bentonite,as a clay material,may be applied in bioremediation of oil contaminated soil.Organic bentonite can effectively improve the gas permeability of soil,because of its adsorption and dispersion for oil,and then offers better living conditions for microbes in soil.Comparing with that without bentonite addition,the oil degradation ratio can increase from 22%to 40% when mixing 5%organic bentonite in soil.If alfalfa is planted in the oil contaminated soil,low oil concentration may promote the sprouting,while if the oil concentration is higher than 1.5%,the sprouting is retarded.By adding organic bentonite into soils,the retarding effect can be reduced.更多还原