包气带土层中重质油的生物可降解性  

Biodegradability of heavy-oils in soil of an aeration zone

作　　者：邵辉煌[1] 李广贺[1] 章卫华[1] 张旭[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2002年第5期708-710,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目 ( 4 9972 0 82 );国家"九七三"基础研究项目 ( G19990 45 711)

摘　　要：通过投加高效微生物和半腐熟堆肥材料 ,改善微生物生态环境 ,促进重质油的生物降解。利用 Soxhlet抽提重量法评价重质油污染土层生物修复的进程 ,并探讨了微生物活性与石油污染物生物降解之间的关系。结果表明 ,重质油生物降解的半衰期长 ,经过 90 d,生物降解量仅占总量的2 0 %。微生物计数和脱氢酶活性与石油污染物生物降解之间存在良好的相关性 。This paper studies the bioremediation of oily soils through biodegradation of the heavy-oils augmented by the addition of high-efficiency microbes and half-decomposed stock manure to ameliorate the microbe environment. The bioremediation of the heavy-oils was evaluated by weighing after Soxhlet extraction to study the relationship between the microorganism activity and the hydrocarbon degradation. The results show that the half-life of the heavy-oils is long, and that only 20% of the hydrocarbons has been biodegraded within 90 days. The total number of microorganisms and the dehydrogenase activity are related to the hydrocarbon biodegradation, indicating that they are both good indicators of the bioremediation of oily soils.

关 键 词：包气带土层 重质油 生物可降解性 脱氢酶活性 石油烃 油污土层 生物修复 

分 类 号：X53[环境科学与工程—环境工程] X172