停留时间分布与啤酒废水处理效率的关系  

Relation between Resident Time Distribution of Bioreactor and Its Efficiency of Brewery Wastewater Treatment

作　　者：张永明[1] 俞俊棠[1] 王建龙[2] 施汉昌[2] 钱易[2] 

机构地区：[1]华东理工大学生物反应器工程国家重点实验室 [2]清华大学环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《华东理工大学学报（自然科学版）》2001年第2期128-130,共3页Journal of East China University of Science and Technology

基　　金：华东理工大学生物反应器工程国家重点实验室 ;清华大学环境模拟与污染控制国家重点联合实验室开放基金 ;江西省自然科学基金资助项目

摘　　要：通过对鼓泡塔式 ( BC)和内循环气升式 ( AL)生物流化床反应器水力停留时间分布的研究 ,发现用组合模型可以描述这两种生物反应器的停留时间分布。AL反应器的完全混合区比 BC大 2 .1 5% ,由于 AL强化了流体流动 ,因而比 BC减少了流体走短路的比例。用 AL和 BC分别处理啤酒废水时 ,AL比 BC的处理效率高。实验结果表明 ,增加内循环可以强化气 -液传质并改善停留时间分布 。The resident time distribution(RTD) of bubble column bioreactor(BC) and airlift loop bioreactor(AL) could be described in combinated model according to the studies on the hydraulics of BC and AL. The full mixture volumes in AL were 2.15% larger than in BC and especially rate of short flow in AL was less than in BC, because the fluid was forced to flow by the draught tube. Compared with BC, AL is more efficient in the treatment of brewery wastewater as improvement of RTD. Experimental results indicated that improvement of RTD could promote the transfer of gas liquid and improve the efficiency of wastewater treatment obviously.

关 键 词：生物反应器 啤酒废水 流化床 内循环 气升式 废水处理 效率 停留时间分布 

分 类 号：X792.031[环境科学与工程—环境工程]