微孔曝气最优气泡群的确定方法  

DETERMINATION OF OPTIMAL BUBBLE GROUP IN MICRO-PORE

作　　者：李尔 曾祥英[1] 范跃华[2] 

机构地区：[1]武汉市政工程设计研究院有限责任公司,湖北武汉430022 [2]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《水处理技术》2007年第7期21-24,52,共5页Technology of Water Treatment

基　　金：国家"十五"高技术研究发展计划(863)项目(2004AA601060)

摘　　要：综合考虑气泡尺寸、气泡分布、气泡生命周期等对微孔曝气水体DO的影响效果,存在着使曝气效果达到最佳的最优气泡群。本研究提出了微孔曝气最优气泡群的确定方法,并采用最大气泡群常数终值来表征该气泡群。试验结果表明,采用最优气泡群与气泡群常数终值确定的最优曝气器及最优曝气量与清水曝气试验的结果相吻合,同时与采用传统曝气系统性能指标评价的结论也一致。Considering the effect of bubble size, bubble distribution and bubble lifecycle on the DO of aeration tank in micro-pore bubble aeration systems, there was an optimal bubble group which could maximize DO in aeration tank. This paper puts forward the calculation of optimal bubble group and uses maximum bubble group constant to evaluate this group. The results showed that the optimal aeration device and the optimal aeration quantity determined by the optimal bubble group and bubble group constant conformed to the results of clear water aeration test, and the conclusion of performance index evaluation adopting traditional aeration system.

关 键 词：最优气泡群 微孔曝气器 气泡分布 气泡尺寸 气泡生命周期 

分 类 号：X703.3[环境科学与工程—环境工程]