Bioremediation of contaminated surface water by immobilized Micrococcus roseus

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 > 期刊论文

	Bioremediation of contaminated surface water by immobilized Micrococcus roseus
	Li, H ; Li, P ; Hua, T ; Zhang, Y ; Xiong, X ; Gong, Z
刊名	ENVIRONMENTAL TECHNOLOGY
	2005
卷号	26 期号:8 页码:931-939
关键词	bioremediation immobilized cell COD reduction SEM analysis
ISSN号	0959-3330
通讯作者	Li, H, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
中文摘要	The problems caused by contaminated surface water have gradually become more serious in recent years. Although various remediation technologies were investigated, unfortunately, no efficient method was developed. In this paper, a new bioremediation technology was studied using Micrococcus roseus, which was immobilized in porous spherical beads by an improved polyvinyl alcohol (PVA) - sodium alginate (SA) embedding method. The experimental results indicated that COD removal rate could reach 64.7 % within 72 hours when immobilized M. roseus beads were used, which was ten times as high as that of free cells. The optimum inoculation rate of immobilized M. roseus beads was 10 % (mass percent of the beads in water sample, g g(-1)). Suitable aeration was proved necessary to enhance the bioremediation process. The immobilized cells had an excellent tolerance to pH and temperature changes, and were also more resistant to heavy metal stress compared with free cells. The immobilized M. roseus beads had an excellent regeneration capacity and could be reused after 180-day continuous usage. The Scanning Electronic Microscope (SEM) analysis showed that the bead microstructure was suitable for M. roseus growth, however, some defect structures should still be improved.
学科主题	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000231870900011
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55069]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Li, H,Li, P,Hua, T,et al. Bioremediation of contaminated surface water by immobilized Micrococcus roseus[J]. ENVIRONMENTAL TECHNOLOGY,2005,26(8):931-939.
APA	Li, H,Li, P,Hua, T,Zhang, Y,Xiong, X,&Gong, Z.(2005).Bioremediation of contaminated surface water by immobilized Micrococcus roseus.ENVIRONMENTAL TECHNOLOGY,26(8),931-939.
MLA	Li, H,et al."Bioremediation of contaminated surface water by immobilized Micrococcus roseus".ENVIRONMENTAL TECHNOLOGY 26.8(2005):931-939.