To provide a methane fermentation treatment system capable of enhancing methane fermentation efficiency by removing ammonia that suppresses methane fermentation by using no chemical.
The methane fermentation treatment system is comprised of a methane fermentation tank 2 for carrying out the methane fermentation of an organic waste, a waste supply-line system 4 for supplying the organic waste to the methane fermentation tank 2, a return-line system 8 for returning a portion of treated sludge resulting from the methane fermentation of the organic waste in the methane fermentation tank 2 as return sludge to the waste supply-line system 4, a solubilizing tank 20 disposed in the return-line system 8, and an ammonia absorption column 22 for absorbing ammonia isolated in the solubilizing tank 20. The solubilizing tank 20 is equipped with a paddle stirrer means for stirring the return sludge by a paddle and an aeration means for aerating the return sludge being stirred by the paddle.
COPYRIGHT: (C)2009,JPO&INPIT
Sueda Yamada
Kiyotaka Shimazu
Yuzen Takada
Osaka Gas Engineering Co., Ltd.
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