Sustainable removal of nitrophenols by rhizoremediation using four strains of bacteria and giant duckweed (Spirodela polyrhiza)
Sustainable removal of nitrophenols by rhizoremediation using four strains of bacteria and giant duckweed (Spirodela polyrhiza)
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使用四种细菌菌株和巨型浮萍（Spirodela polyrhiza）进行根部修复，可持续去除硝基酚
DOI：
10.1007/s11270-014-1928-7
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
K. Mori
中科院分区：
文献类型：
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作者：
R. A. Kristanti;T. Toyama;T. Habiharata;Y. Tanaka;K. Mori
研究了根际强化对硝基酚（NPs）、2- np、3-NP、4-NP和2,4-二硝基酚（2,4- dnp）污染水体的处理效果。我们使用2- np降解假单胞菌。菌株ONR1, 3- np降解cupriavidussp。(MFR2) 4-NP-degradingRhodococcussp。(PKR1), 2, 4-DNP-degradingRhodococcussp。（DNR2）和巨型浮萍（Spirodela polyrhiza）。这四种菌株很容易在螺根上定植，大约为1 × 105个菌落形成单位[cfu] plant - 1至106-107CFU plant - 1。在5个连续的2天降解周期中，较高的种群保持稳定，并在每个周期内完全去除所有4种NPs。根-细菌协会还成功地处理了受NPs污染的废水；52 - 71%的2- np和100%的3-NP、4-NP和2,4- dnp在5个为期2天的周期内被去除。这些结果表明，根增可以有效和可持续地处理受np污染的水体。
We examined the effectiveness of rhizoaugmentation for treating water contaminated with the nitrophenols (NPs), 2-NP, 3-NP, 4-NP, and 2,4-dinitrophenol (2,4-DNP) using NP-degrading bacteria. We used 2-NP-degradingPseudomonassp. (strain ONR1), 3-NP-degradingCupriavidussp. (MFR2), 4-NP-degradingRhodococcussp. (PKR1), 2,4-DNP-degradingRhodococcussp. (DNR2), and giant duckweed (Spirodela polyrhiza). The four bacterial strains readily colonizedSpirodelaroots, as approximately 1 × 105colony-forming units [CFUs] plant−1to 106–107CFU plant−1. The higher populations remained stable through five sequential 2-day degradation cycles and completely removed all four NPs within each cycle. The root–bacteria association also successfully treated wastewater effluent contaminated with NPs; 52–71 % of 2-NP and 100 % of 3-NP, 4-NP, and 2,4-DNP were removed within each of five 2-day cycles. These results demonstrate the potential of rhizoaugmentation to achieve efficient and sustainable treatment of NP-contaminated waters.