作　　者： ; ; ; ; ; ;

机构地区： 山东农业大学资源与环境学院

出　　处： 《水土保持学报》 2013年第1期172-175,181,共5页

摘　　要： 土壤气相抽提(SVE)是一种广泛应用于石油类污染土壤修复工程中的原位修复技术,在广东某柴油污染场地开展SVE技术修复示范工程,探讨SVE技术对此类污染场地的修复效果。结果表明:经过3个多月的修复,土壤中总石油烃的最高去除率达64.88%,在试验进行50d后高浓度的挥发性有机物基本被去除,中低浓度污染物仍然存在,土壤中有效磷和速效氮含量与污染物的生物降解作用相关。为缩短修复时间、降低成本,应将SVE与生物通风技术相结合,并采用相应的强化措施(如添加菌剂和营养物质等),以期获得更高的修复效果。 Soil vapor extraction has been widely applied as an in-situ treating technique in practical design of petroleum contaminated soil. To explore the effectiveness of SVE diesel fuel contaminated fields, a field demonstration of SVE remediation was carried out on the soil in Guangzhou province. The results showed that more than three months after remedy, the largest 64.88% total petroleum hydrocarbons were removed in soil. After 50 days of the experiment, high concentrations of volatile organic compounds were almost removed, but the low concentrations of pollutants still existed in the soil. Available phosphorus and effective nitrogen were related to the contaminants biodegradation effect in the soil. The SVE should be combined with bioventing in order to reduce remediate time and cost. To gain a higher effectiveness, authors could take corresponding enhanced measures, bacteria, nutrient and so on.

关 键 词： 土壤气相抽提 污染场地 柴油 有机物

领　　域： [环境科学与工程]