Biostimulation of Indigenous Microbial Communities for Anaerobic Transformation of Pentachlorophenol in Paddy Soils of Southern China

文献类型： 外文期刊

第一作者： Chen, Manjia

作者： Chen, Manjia;Hu, Min;Li, Fangbai;Liu, Chengshuai;Wu, Weijian;Tong, Hui;Chen, Manjia;Wu, Weijian;Tong, Hui;Shih, Kaimin;Chen, Manjia;Wu, Weijian;Tong, Hui

作者机构：

关键词： biostimulation;pentachlorophenol reductive dechlorination;lactate;anthraquinane-2;6-disulfonate

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

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年卷期：

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收录情况： SCI

摘要： This study explored biostimulation mechanisms with an electron donor and a shuttle for accelerating pentachlorophenol (PCP) transformation in iron-rich soils. The results indicated that indigenous microbial communities are important for PCP transformation in soils. Biostimulation of indigenous microbial communities by the addition of lactate and anthraquinone-2,6-disulfonate (AQDS) led to the enhanced rates of PCP dechlorination by the dechSorinating- and iron-reducing bacteria in soils. The electrochemical studies using cyclic voitammograms and microbial current measurements confirmed the high reduction potential and the large amount of electrons generated under biostimulation conditions, which were responsible for the higher rates of PCP transformation. After biostimulation treatments by the additions of lactate and/or AQDS during PCP dechlorination processes, microbial community analysis by the terminal restriction fragment length polymorphism (T-RFLP) method showed the abundance terminal restricted fragments (T-RFs), an indicator of bacterial abundance, which represents the dechlorinating- and iron-reducing bacteria, suggesting their critical roles in PCP dechlorination in soils.

分类号： R15

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