| BAF中多相流运动与处理效能关系的研究 |
| |
| 引用本文： | 杨春娣,马腾,程文. BAF中多相流运动与处理效能关系的研究[J]. 环境科学与技术, 2010, 33(1). DOI: 10.3969/j.issn.1003-6504.2010.01.007 |
| |
| 作者姓名： | 杨春娣 马腾 程文 |
| |
| 作者单位： | 绍兴文理学院元培学院,浙江,绍兴,312000;绍兴文理学院元培学院,浙江,绍兴,312000;西安交通大学多相流国家重点实验室,陕西,西安,710049;西安交通大学多相流国家重点实验室,陕西,西安,710049 |
| |
| 基金项目： | 国家自然科学基金资助(50679071);;博士后科学基金资助(20070410378) |
| |
| 摘 要： | 曝气生物滤池(BAF)是近年来发展的一种新型污水处理技术,它具有工艺简单、占地节省、有机负荷与水力负荷高、投资较少等优点,特别适用于我国资金短缺的中小城镇分散型污水的处理。文章采用数值模拟与实验分析的方法研究前人较少涉及的BAF中气液两相流的相关规律,揭示流场形态与溶解氧的关系,并分析对反应器处理效能的影响。实验结果表明,纵横比、气体流速、曝气孔径三种因素均能改变流场形态,并且单位体积内气泡数量多、漩涡结构发展充分、气液两相混合充分的流场能使得污水处理效率得到提升。
|
| 关 键 词： | 曝气生物滤池 气液两相流 流场 数值模拟 |
Relationship between Multiphase Fluid Movement and Treatment Efficiency of BAF |
| |
| YANG Chun-di,MA Teng,CHENG Wen. Relationship between Multiphase Fluid Movement and Treatment Efficiency of BAF[J]. Environmental Science and Technology, 2010, 33(1). DOI: 10.3969/j.issn.1003-6504.2010.01.007 |
| |
| Authors: | YANG Chun-di MA Teng CHENG Wen |
| |
| Abstract: | Biological aerated filter(BAF)as a new wastewater treatment technique is easy operated and cost effective,which can be used for separated sewage treatment in small towns in China.Particle image velocimetry technique was used to study gas-liquid two-phase flows.Taking bubble velocity as a boundary condition,gas-liquid two-phase flow velocity field of different conditions obtained.The most effective aeration pattern was proposed.With the change of diameters of capillary tubes,bubble velocity and ratio of aera... |
| |
| Keywords: | biological aerated filter (BAF) gas-liquid two-phase flow experimental research numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
