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Evidence of microscopic correlation between biofilm kinetics and divalent cations for enhanced wastewater treatment efficiency

机译：生物膜动力学和二价阳离子之间微观相关性的证据，提高废水处理效率

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摘要

Biofilm-bacterial communities have been exploited in various biological wastewater treatment processes. The present work is aimed at exploring the possible factors for tailoring biofilm mechanics by introducing divalent cations (Ca2+) in the constructed wetland soil. The in vitro investigation of soil samples collected at various retention times revealed that the addition of Ca2+ facilitates the formation of well organized patterns of biofilm compared to calcium depleted conditions. Afterwards, Ca2+ ions were intentionally introduced into the soil of lab-scale constructed wetland to examine its superior treatment efficiency towards the removal of various chemical and microbiological contaminants. The current work therefore may form a basis to implement theoretical predictions experimentally in a real time existing wastewater treatment technology. Hence, the same approach can effectively be adopted in pilot scale wetland systems as well as other biofilm mediated wastewater treatment technologies.
机译：在各种生物废水处理过程中已经利用生物膜细菌群落。目前的工作旨在探索通过在构造的湿地土壤中引入二价阳离子（CA2 +）来探索塑造生物膜力学的可能因素。在各种保留时间上收集的土壤样品的体外研究表明，与钙耗尽的条件相比，加入CA2 +促进了生物膜的井组织模式。之后，有意地将Ca2 +离子引入实验室规模的土壤中，构建湿地的土壤，以研究其朝着去除各种化学和微生物污染物的优越的治疗效率。因此，目前的工作可以形成基础，以实际地在现有的废水处理技术中实验实施理论预测。因此，在试验尺度湿地系统以及其他生物膜介导的废水处理技术中可以有效地采用相同的方法。

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  • 来源
    《RSC Advances》 |2016年第18期|共9页
  • 作者

    Sehar Shama; Naz Iffat; Das Theerthankar; Ahmed Safia;

  • 作者单位

    Quaid I Azam Univ Dept Microbiol Islamabad 45320 Pakistan;

    Quaid I Azam Univ Dept Microbiol Islamabad 45320 Pakistan;

    Univ Sydney Sydney Med Sch Sydney NSW 2006 Australia;

    Quaid I Azam Univ Dept Microbiol Islamabad 45320 Pakistan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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