首页> 外文期刊>Journal of Environmental Sciences >Achieving and maintaining biological nitrogen removal via nitrite under normal conditions
【24h】

Achieving and maintaining biological nitrogen removal via nitrite under normal conditions

机译:在正常条件下通过亚硝酸盐实现并维持生物脱氮

获取原文
获取原文并翻译 | 示例
       

摘要

The principal aim of this paper is to develop an approach to realize stable biological nitrogen removal via nitrite under normal conditions. Validation of the new method was established on laboratory-scale experiments applying the sequencing batch reactor(SBR) activated sludge process to domestic wastewater with low C/N ratio. The addition of sodium chloride(NaCI) to influent was established to achieve nitrite build-up. The high nitrite accumulation, depending on the salinity in influent and the application duration of salt, was obtained in SBRs treating saline wastewater. The maintenance results indicated that the real-time SBRs can maintain stable nitrite accumulation, but conversion from shorter nitrification-denitrification to full nitrification-denitrification was observed after some operation cycles in the other SBR with fixed-time control. The presented method is valuable to offer a solution to realize and to maintain nitrogen removal via nitrite under normal conditions.
机译:本文的主要目的是开发一种在正常条件下通过亚硝酸盐实现稳定的生物脱氮的方法。该新方法的验证是在实验室规模的实验中建立的,该实验采用了顺序分批反应器(SBR)活性污泥工艺处理低C / N比的生活污水。确定将氯化钠(NaCl)添加到进水中以实现亚硝酸盐积累。在处理盐废水的SBR中,取决于进水的盐度和盐的施用持续时间,可以获得高亚硝酸盐积累。维护结果表明,实时SBR可以保持稳定的亚硝酸盐积累,但是在另一个具有固定时间控制的SBR中,经过一些操作循环后,观察到了从较短的硝化-反硝化向完全硝化-反硝化的转化。提出的方法对于提供解决方案并在正常条件下通过亚硝酸盐去除氮保持有价值。

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