...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fresenius Environmental Bulletin >DRINKING WATER DENITRIFICATION WITH AUTOTROPHIC DENITRIFYING BACTERIA IN A FLUIDIZED BED BIOREACTOR (FBBR)
【24h】

DRINKING WATER DENITRIFICATION WITH AUTOTROPHIC DENITRIFYING BACTERIA IN A FLUIDIZED BED BIOREACTOR (FBBR)

机译：流化床生物反应器（FBBR）中自养生细菌的饮用水脱氮。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, an innovative carrier as sulfur impregnated activated carbon in the lab-scale fluidized bed bio-reactor treating nitrate contaminated drinking water was evaluated. Variation of different operational parameters such as nitrate removal efficiency, nitrite, sulfate, turbidity, hardness and TOC in the effluent was examined during the whole experiment under influent nitrate volume rates ranging from 84 to 590 g NO~-_3-N/m~3.d corresponding to HRT of 5.53 h and different HRT ranging from 2.94 to 1.5 h corresponding to feed nitrate concentration of 90mgN/L. The results indicated that when the bioreactor operated at HRT=5.53h, the denitrification rate was not depended on the influent nitrate loading rate and the nitrate removal efficiency was up to 98%. Nitrite concentration was lower than lmg/L. With the decrease of HRT to 1.5 h nitrate removal efficiency was lower and a high nitrite concentration was observed in the treated water. Therefore the reactor could be operated efficiently at the influent nitrate nitrogen concentration of 45 mg/L and HRT of 2.4 h.
机译：在这项研究中，评估了一种创新的载体，该载体在实验室规模的流化床生物反应器中处理了硝酸盐污染的饮用水中作为硫浸渍的活性炭。在整个实验过程中，在进水硝酸盐体积比为84至590 g NO〜-_3-N / m〜3的情况下，检查了废水中不同操作参数的变化，例如硝酸盐去除效率，亚硝酸盐，硫酸盐，浊度，硬度和TOC。 .d对应于5.53小时的HRT，而不同的HRT在2.94至1.5 h的范围内，对应于进料硝酸盐浓度为90mgN / L。结果表明，当生物反应器在HRT = 5.53h下运行时，反硝化率不受进水硝酸盐负载率的影响，硝酸盐去除率可达98％。亚硝酸盐浓度低于1mg / L。随着HRT降低至1.5 h，硝酸盐去除效率降低，在处理后的水中观察到高亚硝酸盐浓度。因此，反应器可以在进水硝酸盐氮浓度为45 mg / L和HRT为2.4 h的情况下有效运行。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号