吉林大学学报(理学版)

• 环境科学 • 上一篇    

自然水体生物膜形态对其生成H2O2与降解十二烷基苯磺酸钠的影响

李明, 毛丹, 董德明, 赵天宇, 孙家倩, 郭爱桐, 花修艺, 梁大鹏, 郭志勇   

  1. 吉林大学 地下水资源与环境教育部重点实验室, 水资源与水环境吉林省重点实验室, 环境与资源学院, 长春 130012
  • 收稿日期:2014-01-19 出版日期:2014-05-26 发布日期:2014-08-27
  • 通讯作者: 花修艺 E-mail:huaxy@jlu.edu.cn

Effect of Existing Form of Natural Biofilms on Generation of H2O2 bythe Biofilms and Degradation of Sodium Dodecyl Benzene Sulfonate

LI Ming, MAO Dan, DONG Deming, ZHAO Tianyu, SUN Jiaqian,GUO Aitong, HUA Xiuyi, LIANG Dapeng, GUO Zhiyong   

  1. Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province,College of Environment and Resources, Jilin University, Changchun 130012, China
  • Received:2014-01-19 Online:2014-05-26 Published:2014-08-27
  • Contact: HUA Xiuyi E-mail:huaxy@jlu.edu.cn

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摘要：

分别在光照和无光条件下, 通过模拟实验考察不同活性（有活性和无活性）和不同形态（聚集态和分散态）的自然水体生物膜生成H2O2并降解十二烷基苯磺酸钠（DBS）的规律和机理. 结果表明： 具有生物活性的自然水体生物膜在光照和无光条件下均能生成一定量的H2O2； 生物膜的形态影响H2O2生成和DBS降解,  其中聚集态生物膜H2O2生成量相对较多, DBS降解较少； 光照促进生物膜生成H2O2, 进而促进DBS降解

关键词: 光照, 无光, 自然水体生物膜, 降解, 过氧化氢, 十二烷基苯磺酸钠

Abstract:

Effects of activity (active and inactive) and existing form (aggregation state and dispersed state) of natural biofilms on the generation of H2O2 by the biofilms, and on the degradation of sodium dodecyl benzene sulfonate (DBS, used as a representative of degradable organic pollutant), under illumination or in darkness, were investigated through a serie of simulation experiments. Mechanisms of the H2O2 generation and DBS degradation by different states of natural biofilm under different conditions were also discussed. The results indicate that natural biofilms with biological activity can generate a certain amount of H2O2 under light or in darkness; the existing form of biofilms has an impact on both H2O2 generation and DBS degradation, and biofilms in aggregation state generate more H2O2 and degrade less DBS; light promotes not only the generation of H2O2 from the biofilms, but also the degradation of DBS.

Key words: light, dark, natural biofilms, degradation, hydrogen peroxide, sodium dodecyl benzene sulfonate

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  • X131.2
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