干旱区生态环境知识资源中心(Arid): Bioremediation of the Petroleum Contaminated Desert Steppe Soil with Rhodococcus erythropolis KB1 and Its Effect on the Bacterial Communities of the Soils

Arid

DOI	10.1080/01490451.2021.1964111
	Bioremediation of the Petroleum Contaminated Desert Steppe Soil with Rhodococcus erythropolis KB1 and Its Effect on the Bacterial Communities of the Soils
	Wei, Yanchen; Chen, Jixiang; Wang, Yonggang; Meng, Tongtong; Li, Mei
通讯作者	Chen, JX (corresponding author), Lanzhou Univ Technol, Sch Petrochem Engn, 36 Pengjiaping Rd, Lanzhou 730050, Peoples R China.
来源期刊	GEOMICROBIOLOGY JOURNAL
ISSN	0149-0451
EISSN	1521-0529
出版年	2021
英文摘要	A petroleum hydrocarbon degrading bacterium Rhodococcus erythropolis KB1 was used to investigate the bioremediation efficiency of the petroleum contaminated desert steppe soils. The total petroleum hydrocarbons (TPHs) removal efficiency in the soils was analyzed with different treatments including natural degradation, bioaugmentation with R. erythropolis cells, biostimulation with nitrogen and phosphorus, and a combination of bioaugmentation and biostimulation. The petroleum contaminated soils were separately inoculated with R. erythropolis cells, nitrogen and phosphorus nutrients, a combination of the bacterial cells and the nutrients. The soil samples were kept at room temperature for 115 days of bioremediation. On the 66th day, the soil samples were strengthened with the same treatments. The results showed that the degradation rate of the natural degradation group was 20.20%. The biodegradation rates of the bioaugmentation group and biostimulation group were 36.02 and 40.10%, respectively. The combination group of bioaugmentation and biostimulation was the most effective way to remediate petroleum-contaminated soils with a degradation rate of 43.89%. In the bioremediation process the saturated hydrocarbons, especially the linear alkanes were the most easily degraded petroleum components. The cultivable bacterial counts of the soils were significantly increased in the bioaugmentation, biostimulation, and combined groups with bioaugmentation and biostimulation. The bacterial diversities of the petroleum contaminated desert steppe soil changed greatly when compared with that of the natural desert steppe soil. The bacterial structure and abundance of the soils in different treatments also changed significantly.
英文关键词	Desert soil Rhodococcus erythropolis bioaugmentation biostimulation biodegradation microbial diversity
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000686087100001
WOS关键词	CRUDE-OIL ; MICROBIAL COMMUNITY ; DEGRADATION ; BIOAUGMENTATION ; HYDROCARBONS ; BIOSTIMULATION ; REMEDIATION ; NUTRIENT
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363422
作者单位	[Wei, Yanchen; Chen, Jixiang; Li, Mei] Lanzhou Univ Technol, Sch Petrochem Engn, 36 Pengjiaping Rd, Lanzhou 730050, Peoples R China; [Wang, Yonggang] Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou, Peoples R China; [Meng, Tongtong] Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Wei, Yanchen,Chen, Jixiang,Wang, Yonggang,et al. Bioremediation of the Petroleum Contaminated Desert Steppe Soil with Rhodococcus erythropolis KB1 and Its Effect on the Bacterial Communities of the Soils[J],2021.
APA	Wei, Yanchen,Chen, Jixiang,Wang, Yonggang,Meng, Tongtong,&Li, Mei.(2021).Bioremediation of the Petroleum Contaminated Desert Steppe Soil with Rhodococcus erythropolis KB1 and Its Effect on the Bacterial Communities of the Soils.GEOMICROBIOLOGY JOURNAL.
MLA	Wei, Yanchen,et al."Bioremediation of the Petroleum Contaminated Desert Steppe Soil with Rhodococcus erythropolis KB1 and Its Effect on the Bacterial Communities of the Soils".GEOMICROBIOLOGY JOURNAL (2021).