...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Environment Research >Application of Computational Fluid Dynamics to Closed-Loop Bioreactors: Ⅱ. Simulation of Biological Phosphorus Removal Using Computational Fluid Dynamics
【24h】

Application of Computational Fluid Dynamics to Closed-Loop Bioreactors: Ⅱ. Simulation of Biological Phosphorus Removal Using Computational Fluid Dynamics

机译：计算流体动力学在闭环生物反应器中的应用：Ⅱ。基于计算流体动力学的生物除磷模拟

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

Based on the International Water Association's (London) Activated Sludge Model No. 2 (ASM2), biochemistry rate expressions for general heterotrophs and phosphorus-accumulating organisms (PAOs) were introduced to a previously developed, three-dimensional computational fluid dynamics (CFD) activated sludge model that characterized the mixing pattern within the outer channel of a full-scale, closed-loop bioreactor. Using acetate as the sole carbon and energy source, CFD simulations for general heterotrophs or PAOs individually agreed well with those of ASM2 for a chemostat with the same operating conditions. Competition between and selection of heterotrophs and PAOs was verified using conventional completely mixed and tanks-in-series models. Then, competition was studied in the CFD model. These results demonstrated that PAOs and heterotrophs can theoretically coexist in a single bioreactor when the oxygen input is appropriate to allow sufficient low-dissolved-oxygen zones to develop.
机译：基于国际水协会（伦敦）的2号活性污泥模型（ASM2），将一般异养生物和富磷生物（PAO）的生物化学速率表达式引入到先前开发的三维计算流体动力学（CFD）激活中污泥模型，用于表征全尺寸，闭环生物反应器外部通道内的混合模式。使用乙酸盐作为唯一的碳和能源，对于相同操作条件下的恒化器，一般异养菌或PAO的CFD模拟分别与ASM2的模拟相吻合。使用常规的完全混合和串联坦克模型验证了异养菌和PAO之间的竞争和选择。然后，在CFD模型中研究了竞争。这些结果表明，理论上讲，当输入的氧气适合于产生足够的低溶解氧区域时，PAO和异养生物可以共存于单个生物反应器中。

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