| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic waste water treatment device capable of increasing the amount of dissolved oxygen in activated sludge while suppressing a decrease in operation efficiency, and an organic waste water treatment method. <P>SOLUTION: The organic waste water treatment device and the organic waste water treatment method comprise an air diffuser mechanism which uses an ejector for ejecting a liquid introduced into a biological treatment tank with gas containing oxygen into the biological treatment tank in a pressurized state, wherein the ejector is provided on the biological treatment tank directing an ejection direction from upward to downward of the biological treatment tank so as to form downward flow in the biological treatment tank by ejection of the liquid to cause bubbles to accompany downward flow. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
