Immobilization of cadmium in soils by UV-mutated Bacillus subtilis 38 bioaugmentation and NovoGro amendment

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	Immobilization of cadmium in soils by UV-mutated Bacillus subtilis 38 bioaugmentation and NovoGro amendment
	Jiang, C; Sun, H; Sun, T; Zhang, Q; Zhang, Y; Sun, H, Nankai Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300071, Peoples R China
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2009
卷号	167 期号:1-3 页码:1170-1177
关键词	Bioaugmentation Cadmium Novogro Amendment Remediation
ISSN号	0304-3894
英文摘要	Immobilization of cadmium (10 mg Cd per kilogram soil) in soil by bioaugmentation of a UV-mutated microorganism, Bacillus subtilis 38 accompanied with amendment of a bio-fertilizer, NovoGro was investigated using extractable cadmium (E-Cd) by DTPA. B. subtilis 38, the mutant with the strongest resistance against Cd, could bioaccumulate Cd four times greater than the original wild type. Single bioaugmentation of B. subtilis 38 (SB treatment) to soil however did not reduce E-Cd significantly, while the amendment of NovoGro (SN treatment) reduced E-Cdl remarkably. Simultaneous application of B. subtilis 38 and NovoGro (SNB treatment) exhibited a synergetic effect compared to the single SB and SN treatment. The immobilization effect was significantly affected by temperature, soil moisture, and pH. It seems that the immobilization on Cd reached the maximum when environmental conditions favored the activity of microorganisms. Under the optimum conditions, after 90 days incubation, E-Cd was 3.34, 3.39, 2.25 and 0.87 mg kg(-1) in the control soil, SB, SN and SNB soils, respectively. NovoGro not only showed a great capacity for Cd adsorption, but also promoted the growth of B. subtilis 38. This study provides a potential cost-effective technique for in situ remediation of Cd contaminated soils with bioaugmentation. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	Engineering ; Environmental ; Civil ; Engineering ; Environmental Sciences
语种	英语
WOS记录号	WOS:000267267000171
资助机构	Key Joint Research Project Between Tianjin Committee for Agricultural Affairs ; The University of Tokyo [0604130]
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54117]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Sun, H, Nankai Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Jiang, C,Sun, H,Sun, T,et al. Immobilization of cadmium in soils by UV-mutated Bacillus subtilis 38 bioaugmentation and NovoGro amendment[J]. JOURNAL OF HAZARDOUS MATERIALS,2009,167(1-3):1170-1177.
APA	Jiang, C,Sun, H,Sun, T,Zhang, Q,Zhang, Y,&Sun, H, Nankai Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300071, Peoples R China.(2009).Immobilization of cadmium in soils by UV-mutated Bacillus subtilis 38 bioaugmentation and NovoGro amendment.JOURNAL OF HAZARDOUS MATERIALS,167(1-3),1170-1177.
MLA	Jiang, C,et al."Immobilization of cadmium in soils by UV-mutated Bacillus subtilis 38 bioaugmentation and NovoGro amendment".JOURNAL OF HAZARDOUS MATERIALS 167.1-3(2009):1170-1177.