作　　者： ; ;

机构地区： 五邑大学化学与环境工程系

出　　处： 《生态环境学报》 2009年第5期1753-1756,共4页

摘　　要： 在柴油污染土壤的生物修复过程中,分析了土壤中柴油降解菌数量和3种土壤酶活性(过氧化氢酶、脱氢酶和脂酶)等生物活性指标与土壤中柴油去除率的相关性。结果表明,土壤受到柴油污染后的一段时间后过氧化氢酶、脱氢酶和脂酶的活性上升,而后随着土壤中石油烃的降解,脂酶又不断降低。进一步分析表明脂酶活性与柴油降解率及柴油降解菌数量都具有很好的正相关性,可以采用土壤脂酶活性来指示柴油生物降解成效。 The biodegradation tests of diesel oil contaminated soil were investigated in this paper. The relationship of the diesel oil degradation efficiency to the biological activeties such as soil enzyme activities （catalase,dehydrogenase and lipase） and the microbial amounts were analyzed during the biodegradation tests. The results showed that catalase,dehydrogenase and lipase in soil increased after the soil was contaminated by diesel oil,and the lipase in soil decreased with the hydrocarbons degraded in biodegradation tests followed. And there were positive correlations between lipase activity to microbial counts and degradation efficiency of diesel oil. So the soil lipase activity is an excellent indicator of biological activity for monitoring diesel oil decontamination.

关 键 词： 柴油污染 生物修复 土壤酶活性

领　　域： [环境科学与工程]