| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an organic acid production apparatus and method which can improve the production efficiency of organic acids. <P>SOLUTION: The organic acid production apparatus 50 introduces raw sludge and ferments it with acid-producing bacteria to produce the organic acids. The organic acid production apparatus 50 comprises an acid fermentation tank 2 into which the raw sludge is introduced and anaerobically fermented to produce the organic acids, and heat treatment vessels 5, 6 which heat the sludge before being introduced into the acid fermentation tank 2 up to 50°C or more. <P>COPYRIGHT: (C)2009,JPO&INPIT |
