...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Chemical Technology & Biotechnology >Specific energy dissipation rate for super-high-rate anaerobic bioreactor
【24h】

Specific energy dissipation rate for super-high-rate anaerobic bioreactor

机译：超高速率厌氧生物反应器的比耗能率

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

BACKGROUND: Specific energy dissipation rate (φ) is an important performance parameter of the super-high-rate anaerobic bioreactor (SAB) and is closely linked with power matching and operation optimization. The φ value was investigated for a SAB using anaerobic granular sludge and simulating gas production. The φ models for separation, reaction and water distribution units were established. RESULTS: Experimental results showed that the model predictions agreed well with the experimental data thus, they may be used for power matching and operation optimization of similar high-rate anaerobic bioreactors. The φ value for the separation unit was so low as to be neglected. The maximum φ values for the reaction unit during nonfluidization, granular sludge agglomeration, liquid-solid two-phase fluidization and gas-liquid-solid three-phase fluidization states were 0.143 W m~(-3), 4.449 W m~(-3), 2.173 W m~(-3) and 11.132 W m~(-3), respectively. The maximum φ value for the water distribution unit was 8.37 W m~(-3). φ for the reaction unit was significantly influenced by ρ_p, u_l and V_p, u_g and d_p. CONCLUSION: The maximum φ value of 11.132 W m~(-3) was the basic parameter for power matching for the SAB. Some measures were introduced to reduce the φ values based on parametric sensitivity analyses. The present investigation will further assist in optimizing the operation and design of SABs.
机译：背景：比耗散率（φ）是超高速率厌氧生物反应器（SAB）的重要性能参数，与功率匹配和操作优化密切相关。使用厌氧颗粒污泥并模拟产气量研究了SAB的φ值。建立了分离，反应和水分配单元的φ模型。结果：实验结果表明，模型预测与实验数据吻合良好，可用于相似的高速率厌氧生物反应器的功率匹配和操作优化。分离单元的φ值低到可以忽略不计。在非流化，颗粒污泥团聚，液固两相流化和气液固三相流化状态下反应单元的最大φ值为0.143 W m〜（-3），4.449 W m〜（-3 ），分别为2.173 W m〜（-3）和11.132 W m〜（-3）。水分配单元的最大φ值为8.37 W m〜（-3）。反应单元的φ受ρ_p，u_l和V_p，u_g和d_p的影响很大。结论：最大φ值为11.132 W m〜（-3）是SAB功率匹配的基本参数。根据参数灵敏度分析，引入了一些减小φ值的措施。本研究将进一步帮助优化SAB的运行和设计。

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