The use of magnesium peroxide for the inhibition of sulfate-reducing bacteria under anoxic conditions

University of Taipei > 理學院 > 地球環境暨生物資源學系(含環境教育與資源碩士班) > 期刊論文 > Item 987654321/6413

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://utaipeir.lib.utaipei.edu.tw/dspace/handle/987654321/6413

题名:	The use of magnesium peroxide for the inhibition of sulfate-reducing bacteria under anoxic conditions
作者:	Yu-Jie Chang 張育傑 Yi-Tang Chang Chun-Hsiung Hung
贡献者:	臺北市立教育大學地球環境暨生物資源學系
关键词:	Sulfate-reducing bacteria (SRB) Magnesium peroxide - Oxidation Fluorescence in-situ hybridization (FISH) reduction potential (ORP)
日期:	2008
上传时间:	2012-06-28 15:30:37 (UTC+8)
摘要:	Sulfate-reducing bacteria (SRB), which cause microbiologically influenced material corrosion under anoxic conditions, form one of the major groups of microorganisms responsible for the generation of hydrogen sulfide. In this study, which is aimed at reducing the presence of SRB, a novel alternative approach involving the addition of magnesium peroxide (MgO2) compounds involving the use of reagent-grade MgO2 and a commercial product (ORC™) was evaluated as a means of inhibiting SRB in laboratory batch columns. Different concentrations of MgO2 were added in the columns when black sulfide sediment had appeared in the columns. The experimental results showed that MgO2 is able to inhibit biogenic sulfide. The number of SRB, the sulfide concentration and the sulfate reducing rate (SRR) were decreased. ORC™ as an additive was able to decrease more effectively the concentration of sulfide in water and the SRB-control effect was maintained over a longer time period when ORC™ was used. The level of oxidation–reduction potential (ORP), which has a linear relationship to the sulfide/sulfate ratio, is a good indicator of SRB activity. As determined by fluorescence in-situ hybridization (FISH), most SRB growth was inhibited under increasing amounts of added MgO2. The concentration of sulfide reflected the abundance of the SRB. Utilization of organic matter greater than the theoretical SRB utilization rate indicated that facultative heterotrophs became dominant after MgO2 was added. The results of this study could supply the useful information for further study on evaluating the solution to biocorrosion problems in practical situations.
關聯:	Journal of Industrial Microbiology & Biotechnology v.35n.11 P.1481-1491
显示于类别:	[地球環境暨生物資源學系(含環境教育與資源碩士班)] 期刊論文

文件中的档案:

没有与此文件相关的档案.

检视Licence

在uTaipei中所有的数据项都受到原著作权保护.

数据加载中.....