Assessment of microbial respiratory activity of a manufactured gas plant soil after remediation using sunflower oil

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所

	Assessment of microbial respiratory activity of a manufactured gas plant soil after remediation using sunflower oil
	Gong, ZQ; Alef, K; Wilke, BM; Mai, MK; Li, PJ; Gong, ZQ, Chinese Acad Sci, Inst Appl Ecol, POB 417,Wenhua Rd 72, Shenyang 110016, Peoples R China
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2005
卷号	124 期号:1-3 页码:217-223
关键词	Soil Respiration Microbial Activity Vegetable Oil Soil Remediation Polycyclic Aromatic Hydrocarbons (Pahs)
ISSN号	0304-3894
英文摘要	Microbial activity of a manufactured gas plant (MGP) soil, as well as remaining oil degradability, before and after remediation using sunflower oil was assessed. A sandy soil contaminated with polycyclic aromatic hydrocarbons (PAHs) was collected from an MGP site in Berlin, Germany. Column solubilizations of PAHs from the field-moist soil and air-dried soil using sunflower oil as an extractant at an oil/soil ratio of 2:1 (v/m) were carried out to compare PAH removals from the soil under these two conditions. After column solubilizations, portions of untreated soil (UTS), solubilized field-moist soil (SFMS), and solubilized air-dried soil (SADS) were amended with nutrients. Both nutrient amended and unamended soil samples were subjected to soil respiratory measurement. Soil respiration parameters, such as basal respiration rate, nutrient-induced respiration rate, lag time, exponential growth rate, respiratory activation quotient, peak maximum time, and cumulative CO2 evolution were calculated from the soil respiration curves. The parameters were compared using analysis of variance (ANOVA) and least-significance difference (LSD). Results showed that the impact of soil moisture on the PAH removals was quite significant, with the SADS showing higher PAH removals and the SFMS showing lower ones. There were significant differences between the respiration parameters with respect to the UTS, SFMS, and SADS. Basal respiration rate, nutrient-induced respiration rate, and exponential growth rate were lower for the SFMS and SADS relative to the UTS. Lag time and peak maximum time were higher for the SFMS and SADS relative to the UTS. Exponential growth rate was higher for the SFMS relative to the SADS. These parameters demonstrated that soil microbial activity was reduced at the onset of the test, because a lot of bioavailable materials for microbial growth were removed by sunflower oil. On the other hand, cumulative CO2 evolutions in the SFMS and SADS were higher than that in the UTS, indicating that soil respiration was activated after soil microorganisms got acclimatized to the remaining sunflower oil, and remaining sunflower oil was biodegradable. (c) 2005 Elsevier B.V. All rights reserved.
学科主题	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
语种	英语
WOS记录号	WOS:000231403600028
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55077]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Gong, ZQ, Chinese Acad Sci, Inst Appl Ecol, POB 417,Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gong, ZQ,Alef, K,Wilke, BM,et al. Assessment of microbial respiratory activity of a manufactured gas plant soil after remediation using sunflower oil[J]. JOURNAL OF HAZARDOUS MATERIALS,2005,124(1-3):217-223.
APA	Gong, ZQ,Alef, K,Wilke, BM,Mai, MK,Li, PJ,&Gong, ZQ, Chinese Acad Sci, Inst Appl Ecol, POB 417,Wenhua Rd 72, Shenyang 110016, Peoples R China.(2005).Assessment of microbial respiratory activity of a manufactured gas plant soil after remediation using sunflower oil.JOURNAL OF HAZARDOUS MATERIALS,124(1-3),217-223.
MLA	Gong, ZQ,et al."Assessment of microbial respiratory activity of a manufactured gas plant soil after remediation using sunflower oil".JOURNAL OF HAZARDOUS MATERIALS 124.1-3(2005):217-223.