| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ammonia removing device in which even if a methanation raw material is a livestock excretion of high-concentration nitrogen content, the treatment efficiency of removing ammonia is raised, and the reducing of wastewater is achieved. <P>SOLUTION: A part of a methanation raw material held in an ammonia fermentation tank 2 is taken out to the outside of the fermentation tank and is made to circulate under the anaerobic atmosphere of a closed circulatory system ammonia removing system 101, while the circulation, the ammonia contained in the raw material is gasified and removed, and the raw material from which ammonia has been removed is returned to the ammonia fermentation tank 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
