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首页> 外文期刊>Desalination and water treatment >Bioremediation of marine oil pollution by Brevundimonas diminuta: effect of salinity and nutrients
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Bioremediation of marine oil pollution by Brevundimonas diminuta: effect of salinity and nutrients

机译：Brevundimonas diminuta对海洋石油污染的生物修复：盐分和养分的影响

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摘要

Brevundimonas diminuta was isolated from the oil-contaminated seawater in Dalian, China. The effects of salinity and nutrients (nitrogen and external carbon) on diesel oil biodegradation were investigated. This strain could utilize diesel oil as the sole source of carbon and energy and gave a biodegradation rate of 45% over 6d under the salinity of 3.38% (w/w). Under the saline condition, nutrient addition has been proved to be an effective strategy to enhance oil biodegradation in marine environment. The addition of soluble starch and methanol exhibited a significant stimulative effect on oil biodegradation. The optimum external carbon source was soluble starch. Based on this, the optimum carbon source to external carbon source (C/EC) ratio in the test range was 2:1. Under the optimum conditions, diesel oil biodegradation rate increased from 44 to 65%. The optimum nitrogen source and C/N ratio were found to be NaNO3 and 20:1, respectively. Under the optimum condition, the diesel oil biodegradation rate increased to 88%. The polymeric compounds formed in the culture after nitrogen addition comprise a number of amphoteric functional groups. The results suggest that B. diminuta has considerable ability for bioremediation process of oil in marine environment.
机译：Brevundimonas diminuta是从中国大连受石油污染的海水中分离出来的。研究了盐度和养分（氮和外部碳）对柴油生物降解的影响。该菌株可以利用柴油作为唯一的碳和能量来源，并且在盐度为3.38％（w / w）的情况下，在6天的时间内生物降解率为45％。在盐水条件下，已证明添加营养物是增强海洋环境中石油生物降解的有效策略。可溶性淀粉和甲醇的添加对石油生物降解表现出显着的促进作用。最佳的外部碳源是可溶性淀粉。基于此，测试范围内的最佳碳源与外部碳源（C / EC）之比为2：1。在最佳条件下，柴油的生物降解率从44％提高到65％。最佳氮源和C / N比分别为NaNO3和20：1。在最佳条件下，柴油的生物降解率提高到88％。加入氮后在培养物中形成的聚合化合物包含许多两性官能团。结果表明，B。diminuta具有在海洋环境中对石油进行生物修复的能力。

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  • 来源
    《Desalination and water treatment》 |2016年第42期|19768-19775|共8页
  • 作者

    Wang Xin; Wang Xuejiang; Liu Mian; Zhou Lijie; Gu Zaoli; Zhao Jianfu;

  • 作者单位

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

    Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Brevundimonas diminuta; Bioremediation; Oil pollution; Salinity; Nutrient;

    机译：短短孢菌;生物修复;油污染;盐度;营养素;

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