A Study of the Characteristics of Microorganisms for Effective Degradation of Marine Oil Spills  

作　　者：Zhang Zhongzhi Wei Xiaofang Zong Chang Yu Hongwen Li Chengjian He Ruibing 

机构地区：[1]Faculty of Chemistry ＆ Chemical Engineering, China University of Petroleum, Beijing 102249, China [2]Bohai Oil Technical Service Company, China National Offshore Oil Corp.,Tanggu ,Hebei 065000, China

出　　处：《Petroleum Science》2006年第1期61-67,共7页石油科学（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China (No.40472152)

摘　　要：Four microorganism strains were isolated from coastal petroleum-polluted soil and sand samples of Bohai Sea oilfield; they were found to degrade marine oil spills effectively. The experimental results show that the degradation efficiency of crude oil with these four strains （XT-4, SZ-1-25, B-4-9, BS-3-12） is 95.97%, 96.01%, 97.99% and 98.99%, respectively, in their optimum conditions. The characteristics of bacterial biodegradation are investigated. The simulation biotreatment of oil-contaminated beach sand, with an initial oil content of 5,664mg/kg-dry-sand, shows that the residual oil content is 2,700 mg/kg-dry-sand and 2,679 mg/kg-dry-sand after 170 days＇ treatment with two bacteria （B-4-9, BS-3- 12）, respectively.Four microorganism strains were isolated from coastal petroleum-polluted soil and sand samples of Bohai Sea oilfield; they were found to degrade marine oil spills effectively. The experimental results show that the degradation efficiency of crude oil with these four strains （XT-4, SZ-1-25, B-4-9, BS-3-12） is 95.97%, 96.01%, 97.99% and 98.99%, respectively, in their optimum conditions. The characteristics of bacterial biodegradation are investigated. The simulation biotreatment of oil-contaminated beach sand, with an initial oil content of 5,664mg/kg-dry-sand, shows that the residual oil content is 2,700 mg/kg-dry-sand and 2,679 mg/kg-dry-sand after 170 days＇ treatment with two bacteria （B-4-9, BS-3- 12）, respectively.

关 键 词：Petroleum pollution halophilic bacteria BIODEGRADATION simulation biotreatment of beach sand 

分 类 号：X74[环境科学与工程—环境工程]