Airlift type fermenter - Airlift type fermenter

…In the fermentation industry, it is generally important to prevent contamination by various bacteria, and great care must be taken to sterilize the equipment and culture medium, disinfect the aeration air, complete equipment joints and seals, and perform aseptic operations. Various fermentation tanks have been devised to improve the efficiency of oxygen supply, foam removal, and power consumption. These include the Waldhoff type fermentation tank, which has a cylindrical draft inside the tank and uses special disk agitators to provide high oxygen supply capacity and foam removal, and the airlift type fermentation tank, which blows air into the pipe and causes it to rise along with the culture liquid, efficiently supplying oxygen and circulating the culture liquid. To increase the efficiency of the equipment, continuous culture can be performed by continuously supplying a constant amount of culture medium to the fermentation tank while removing the culture liquid, and maintaining a steady state inside the tank. …

*Some of the terminology that refers to "airlift type fermenter" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…一般に発酵工業では，雑菌の汚染を防ぐことが重要で，装置および培地の殺菌，通気空気の除菌，装置継手類，シールの完備，無菌的操作に十分注意する必要がある。酸素供給，消泡，動力消費の効率化のため各種の発酵槽が考案されており，槽内に円筒ドラフトを設け，特殊なディスクかくはん翼を用い，高い酸素供給能と消泡効果をもつワルドホフ型発酵槽と，パイプ中に空気を吹き込んで培養液とともに上昇せしめ，酸素供給と培養液の循環を効率よく行うエアリフト型発酵槽がある。設備の効率を高めるため，発酵槽に培地を一定量連続的に供給しつつ培養液を取り出し，槽内を定常状態に保つことによって連続培養を行うことができる。…

※「エアリフト型発酵槽」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報