| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for feeding organic matter-containing liquid into a fermentation tank which can safely maintain the stable fermentation treatment of the organic matter-containing liquid, and a treatment apparatus for the organic matter-containing liquid. <P>SOLUTION: In the fermentation tank 1 for decomposing the organic matter-containing liquid S by bringing the liquid into contact with microorganisms, an external circulation passage 5 with a pump 6 for drawing out the liquid S to be treated from the lower part and returning it to a plurality of discharge ports 8 dispersively disposed on the top is installed, a liquid storage tank 10 disposed at the same height as a liquid level L of the fermentation tank 1 is connected to the circulation passage 5. The liquid S to be treated is supplied to the circulation passage 5 through the liquid storage tank 10, and then supplied together with circulating liquid S in the circulation passage 5 from a plurality of the discharge ports 8 to the fermentation tank 1 to be circulated. Desirably a top space 13 communicating to the upper space 4 in the fermentation tank 1 is installed in the liquid storage tank 10, and the liquid S to be treated is taken into the top space 13 of the liquid storage tank 10, and supplied to the circulation passage 5 from the bottom. The top and bottom of the liquid storage tank 10 are connected to the downstream side 5b and upstream side 5a of the pump of the circulation passage 5, and the liquid S to be treated is mixed with the circulating liquid S drawn from the downstream side 5b of the pump into the liquid storage tank 10 to be supplied to the upstream side 5a of the pump. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
