好氧反硝化菌Acinetobacter sp.A2在主要环境影响条件下的NO-3去除动力学研究

好氧反硝化菌Acinetobacter sp.A2在主要环境影响条件下的NO-3去除动力学研究

论文摘要

针对驯化筛选的一株好氧反硝化菌Acinetobacter sp.A2,研究了其以苯酚为唯一碳源进行反硝化的动力学过程.通过对比不同浓度条件下苯酚浓度对反硝化效能的影响,结果表明苯酚浓度在500 mg/L左右能够为反硝化提供充足碳源且不产生严重的抑制作用,此时反硝化效率最高.在该浓度条件下,分别控制温度、pH值以及DO(Dissolved Oxygen)为唯一控制变量,研究Acinetobacter sp.A2在限制性条件下的动力学关系,根据试验数据推导出了Acinetobacter sp.A2在限制性条件下的混合降解动力学方程.通过试验数据以及动力学方程分析可以确定温度及pH值为反硝化过程的主要影响因子之一.

论文目录

  • 1 材料与方法
  •   1.1 菌株的选取与培养
  •     1.1.1 菌种来源
  •     1.1.2 培养基
  •   1.2 实验方法
  •     1.2.1 序批式试验
  •     1.2.2 分析方法
  •   1.3 单因素影响的动力学分析
  •     1.3.1 碳源浓度与反硝化的关系
  •     1.3.2 温度与反硝化动力学的关系
  •     1.3.3 pH值与反硝化动力学的关系
  •     1.3.4 DO与反硝化动力学的关系
  • 2 结果与分析
  •   2.1 菌株系统发育树
  •   2.2 苯酚浓度对反硝化效能的影响
  •   2.3 限制性条件下的反硝化动力学
  •     2.3.1 碳源浓度与反硝化动力学的关系
  •     2.3.2 温度与反硝化动力学的关系
  •     2.3.3 pH值与反硝化动力学的关系
  •     2.3.4 DO浓度与反硝化动力学的关系
  • 3 结 论
  • 文章来源

    类型: 期刊论文

    作者: 杨世东,崔鑫鑫

    关键词: 苯酚,好氧反硝化,动力学,硝酸盐

    来源: 东北电力大学学报 2019年04期

    年度: 2019

    分类: 工程科技Ⅱ辑,基础科学,工程科技Ⅰ辑

    专业: 生物学,环境科学与资源利用

    单位: 东北电力大学建筑工程学院

    基金: 国家自然科学基金项目(31101009),吉林省科技厅自然科学基金项目(20150101090JC)

    分类号: X172;X703

    DOI: 10.19718/j.issn.1005-2992.2019-04-0068-08

    页码: 68-75

    总页数: 8

    文件大小: 1646K

    下载量: 117

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    好氧反硝化菌Acinetobacter sp.A2在主要环境影响条件下的NO-3去除动力学研究
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