|Table of Contents|

Study on Enhanced Technology of Oil-contaminated Soil Bioremediation(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第04期
Page:
427-431
Research Field:
环境地学
Publishing date:

Info

Title:
Study on Enhanced Technology of Oil-contaminated Soil Bioremediation
Author(s):
WANG Li-juan;  ZHANG Yi-long;  WANG Zhe;  HOU Xin-wei;  ZHOU Xiao-ni
(Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, Hebei, China)
Keywords:
oil-contamination;  bacterial consortium;  bioaugmentation;  degradation
PACS:
X53
DOI:
-
Abstract:
In order to explore better treatment process of oil-contaminated soil,four optimized bacteria that can degrade petroleum efficiently are selected from the predominant bacteria which are stored by our laboratory. Their environmental strengthening test and microbial agent strengthening processing were conducted using shaking cultivation and incubator in the oil-contaminated soil containing 5% oil. The results of microbial agent strengthening indicate that the reduction of petroleum hydrocarbons of four strains and a mixed strain are 24%, 19.81%, 22.55%, 26.46% and 39.67% respectively. A test performed to determine the best ratio of the flora ACD shows that the best number ratio of the flora A, C and D is NA:NC:ND=1:2:0.5 within 3 d, and the flora A, C and D in the best circumstances can degrade 44.2% oil. The results of environmental strengthening test indicate that the flora A, C and D in the best conditions for the ratio of nutrients C:N:P is 75:8:3, and the content of surfactant is 0.5%. In the ventilation conditions for the six gauze and E-receptor H2O2 is 1.5%, the degradation of petroleum hydrocarbons is 61.46% within 3 d, and the degradation rate increase 56.76% compared with that under natural conditions which is only 4.7%, and increase 17% compared with the degradation rate of 44.2% when only strengthening the bacteria.

References:

[1] 郑金秀,彭 祺,张甲耀,等.优势降解菌群生物强化修复石油污染土壤[J].农业环境科学学报,2006,25(5):1212-1216.
[2] Ruberto L,Vazquez S C,Maccormack W P.Effectiveness of the Natural Bacterial Flora Biostimulation and Bioaugmentation on the Bioremediation of a Hydrocarbon Contaminated Antarctic Soil[J].Biodeterioration and Biodegradation,2003,52(2):115-125.
[3] Wang J L,Zhao X,Wu W Z.Biodegradation of Phthalic Acid Esters(PAEs)in Soil Bioaugmented with Acclimated Activated Sludge[J].Process Biochemistry,2004,39(12):1837-1841.
[4] Quan X C,Shi H C,Liu H,et al.Enhancement of 2,4-Dichlorophenol Degradation in Conventional Activated Sludge Systems Bioaugmented with Mixed Special Culture[J].Water Research,2004,38(1):245-253.
[5] 张宝良,王宝辉,张昌兴.土壤石油污染的生物修复技术[J].油气田地面工程,2007,26(3):9.
[6] 丁克强,骆永明.生物修复石油污染土壤[J].土壤,2001,33(4):179-184.
[7] 谢丹平.石油污染生物修复技术研究[J].四川环境,2006,25(4):109-112.
[8] 李春荣,王文科,曹玉清,等.石油污染土壤对向日葵生长的影响[J].地球科学与环境学报,2006,28(4):97-99.
[9] 李春荣,王文科,曹玉清,等.石油污染物的微生物降解[J].地球科学与环境学报,2007,29(2):214-216.
[10] 林凤翱,于占国,李 洪,等.海洋丝状真菌降解原油研究Ⅰ:石油烃降解的实验室模拟[J].海洋学报,1997,19(6):68-76.
[11] 刘期松,张春桂,杨桂芬,等.多级处理系统中的微生物生态结构和功能[J].环境科学学报,1986,6(3):253-262.
[12] 席淑琪,刘 芳,吴 迪.微生物对地表水中石油类污染物的降解研究[J].南京理工大学学报,1998,22(3):232-235.

Memo

Memo:
-
Last Update: 2009-12-20