| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a more efficient treatment system for waste water containing a suspended organic matter reducing the leak of nitric acid even in waste water containing suspended organic matter in high concentration. <P>SOLUTION: This suspended organic matter-containing waste water treatment system includes a suspended organic matter separator 10 for separating the suspended organic matter from water to be treated containing the suspended organic matter, a sludge anaerobic digestion apparatus 20 for anaerobically digesting the separated suspended organic matter, a nitrification apparatus 30 for oxidizing ammonia contained in the digested solution to nitrous acid under an aerobic condition, a denitrification apparatus 40 for performing denitrification treatment in which the treated solution is treated with autotrophic denitrification bacteria under an anaerobic condition to convert not only ammonia nitrogen to an electron donor but also nitrous nitrogen to an electron acceptor to perform anaerobic ammonia oxidation treatment and denitrification treatment in which nitrous nitrogen and nitric nitrogen are reduced to nitrogen molecules by heterotrophic bacteria, and a first transfer route R1 for supplying the separated solution from which the suspended organic matter is removed by the suspended organic matter separator 10 to the denitrification apparatus 40. <P>COPYRIGHT: (C)2013,JPO&INPIT |
