摘要
针对笼式通气搅拌生物反应器的特点，本文提出了一种简单可信的测量丝网内外液体交换速率的实验方法，根据此方法，在ＣｅｌｌＣｕｌ－２０Ａ生物反应器中得出了通过丝网的液体交换速率关联式：单层丝网：Ｑｓ＝１．９３×１０＾－５Ｎ＾１．８１＋１．１３×１０＾－４ＵＧ０．６１ （Ⅰ）双层丝网：Ｑｓ＝３．４２×１０＾－５Ｎ＾１．４９＋１．４６×１０＾－４ＵＧ０．６８ （Ⅱ）并在此基础上。
In this paper, based on the mass transfer characteristics of the stirred bioreactor with a cage aeration device, a novel experimental method and the correlations of liquid exchange rates have been presented for measuring the liquid exchange rates tbrougb the metal screen. On these bases, a mathematical model of oxygen transfer on deep aeration has been established. The theoretical analyses and the experimental results show that the total oxygen transfer capacity can be enhanced by increasing the cage volume and oxygen transfer efficiency inside the cage.
出处
《生物工程学报》
CAS
CSCD
北大核心
1993年第4期372-378,共7页
Chinese Journal of Biotechnology
关键词
生物反应器
液体交换
氧传递
Bioreactor
liquid exchange
cage aeration device
oxygen transfer
mathematical model
