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Research on Characteristics of Hydrodynamics and Oxygen Mass Transfer in External Airlift Alternant Loop Complex Bio-filter
Author(s): 
Pages: 12-16
Year: Issue:  1
Journal: JIANGSU ENVIRONMENTAL SCIENCE AND TECHNOLOGY

Keyword:  流体力学氧传质特性气体流量颗粒滤料气提升交替流复合滤池;
Abstract: 气提升交替漉复合滤池(AALCF)是在气提升循环流化床(ALR)和曝气生物滤池(BAF)研究基础上发明的一种新型生化反应器.通过该反应器,研究了其流体力学和氧传质特性以及它们的主要影响因素.即气体流量和颗粒滤料层高度.结果表明,气体流量对反应器内液体流速、循环时问、气舍率以及氧传质系数均有线性的影响:而随着颗粒层高的增加,液体流速会减小从而循环时问延长,但其砷气含率的影响并不明显.另外.氧传质系数随之呈现先增加后减小的趋势,且在颗粒层高为15 cm时可迭最大值.
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