| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for processing decanter liquid into liquid fertilizer capable of diffusing and restoring the decanter liquid reserved in a storage pond and has significant bad smell, to a farm by improving processing speed of, for example, BOD with a simple constructure, by using a super deep layer aerating tank. <P>SOLUTION: This method includes a process of introducing the decanter liquid 11 into the super deep layer aerating tank 10 comprising shaft 1 having a downward flow tube part 1a and a upward flow tube part 1b, and a head tank 2 continuously provided at the upper end part of the shaft 1, a process of supplying compressed air by a compressor 5 into the super deep layer aerating tank 10 through a diffusing tube 6 and aerating the same to thereby perform aerobic resolution treatment of the decanter liquid 11 with microscopic organisms naturally generated and bred in the super deep layer aerating tank 10, and a process for guiding the decanter liquid 11 that has been aerobic-resolution-processed to a treatment liquid storage pond 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
