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葡萄糖对芽孢杆菌降解水体中4,4'二溴联苯醚的促进作用 被引量:1

Effect of Glucose Accelerating Degradation of Aqueous BDE-15 by Bacillus
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摘要 为了探究4,4'-二溴联苯醚(BDE-15)在水环境中的生物降解过程及其影响因素,在实验室内利用筛选得到的芽孢杆菌(Bacillus sp.)对BDE-15进行生物降解试验,并研究了外加碳源和高初始浓度BDE-15对微生物降解能力的影响。结果表明,在葡萄糖作为外加碳源条件下芽孢杆菌能降解水体中BDE-15,4 d后菌株对BDE-15的降解率为28%,再次添加葡萄糖可提高降解率至55%。高质量浓度(50 mg·L-1)BDE-15能抑制芽孢杆菌生长,并显著影响菌株对BDE-15的降解能力。 To explore process of BDE - 15 biodegradation in water body and its influencing factors, an indoor experiment was carried out using Bacillus sp. to biodegrade BDE - 15 in water to study effects of extragenons carbon and initial BDE - 15 concentration on the bio-degradation capacity of the bacteria. Results show that Bacillus could not utilize BDE - 15 as the sole carbon source for growth. If glucose was added, Bacillus could grow rapidly and improve its ability to degra- date BDE - 15 in water and in 4 days, it could degrade 28% of the BDE 15 in the solution and even 55% when an addi- tional dose of glucose was added. The high initial BDE - 15 concentration (50 mg · L^-1 ) could inhibit the growth of Ba- cillus and also its ability to biodegradate BDE - 15.
出处 《生态与农村环境学报》 CAS CSSCI CSCD 北大核心 2012年第6期718-721,共4页 Journal of Ecology and Rural Environment
基金 国家水体污染控制与冶理科技重大专项(2009ZX07106-001-002 2012ZX07101006)
关键词 4 4'-二溴联苯醚 芽孢杆菌 降解 BDE - 15 Bacillus degradation
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同被引文献25

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