空气提升内循环生物流化床反应器动力学研究  

Study on Kinetics of Biofilm Suspension Reactor

作　　者：周平[1] 钱易[1] 

机构地区：[1]清华大学环境工程系,环境模拟与污染控制国家重点联合实验室

出　　处：《环境科学》1996年第6期9-12,共4页Environmental Science

摘　　要：进行了空气提升内循环生物流化床反应器内液体内循环速度、有机物降解动力学、载体表面生物膜脱落与增长动力学的研究．结果表明，内循环生物流化床内循环速度分别与反应器高度及升流区表观气速Ｕｇ的０．５次方成正比；当内循环流量很大时，反应器可视为ＣＳＴＲ；生物膜的脱落率分别与Ｕｇ及膜厚的一次方、载体数量的２／３次方成正比．Study on the liquid circulation velocity,organic matter degradation kinetics and bio film detachment rate in airlift biofilm suspension re￣tor was conducted.The results showed that the inner circulation velocity is proportional to the reactor height and the 0.5 POwer of the superficial gas velocity in the riser. The reactor can be treated as CSTR when inner circulation flux is high. The biofilm detachment rate is proportional to the first power of suPerficial gas velocity in riser and the biofilm thickness and the 2/3 POwer of carrier quantity in reactor,respectively.

关 键 词：空气提升内循环 生物流化床 流化床反应器 

分 类 号：TQ051.13[化学工程]