首页> 外文会议>European Symposium on Environmental Biotechnology(ESEB 2004); 20040425-20040428; Oostende; BE >Monitoring sulfate-reducing bacteria (SRB) using molecular tools during in situ immobilization of heavy metals
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Monitoring sulfate-reducing bacteria (SRB) using molecular tools during in situ immobilization of heavy metals

机译:在原位固定重金属过程中使用分子工具监测硫酸盐还原细菌(SRB)

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摘要

In situ bioprecipitation (ISBP) of heavy metals as metal sulfides by the activity of sulfate-reducing bacteria (SRB) is a promising strategy for sustaining groundwater quality. The feasibility of the ISBP process for a Zn, Cd, Ni and Co-polluted industrial site was studied in column experiments, using lactate, molasses or HRC~(~R) as supplemented electron donor and C-source. In addition, the effect of extra N/P was evaluated. In order to link the results of analytical analyzes to SRB-community composition and activity, the SRB population was monitored by molecular tools such as SRB-subgroup or - genus specific PCR and DGGE of the 16S rRNA- and dsr (dissimilatory sulfite reductase) gene.
机译:通过减少硫酸盐的细菌(SRB)的活性,将重金属作为金属硫化物进行原位生物沉淀(ISBP)是维持地下水质量的一种有前途的策略。利用乳酸,糖蜜或HRC〜(〜R)作为补充电子供体和碳源,在柱实验中研究了Zn,Cd,Ni和Co污染工业现场ISBP工艺的可行性。另外,评估了额外N / P的作用。为了将分析结果与SRB社区组成和活性联系起来,通过分子工具(例如SRB亚组或16S rRNA-和dsr(异亚硫酸盐还原酶)基因的特异性PCR和DGGE)监测了SRB种群。

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