| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic waste water treatment method and system which can improve dehydration efficiency in a pretreatment process without increasing the amount of added dehydration assistant, and improve overall resource recovery efficiency of waste. <P>SOLUTION: In the organic waste water treatment system comprising a pretreatment unit for performing the pretreatment of organic waste water containing septic tank sludge, and a biological treatment unit for performing the biological treatment of the pretreated liquid, the pretreatment unit comprises a dehydration unit 2 for directly dehydrating the organic waste water without removing impurities, and an impurity-removing unit 1 installed parallel to the dehydration unit. At least part of the organic waste water 20 is branched and introduced into the dehydration unit 2, and the other branched organic waste water 20 is introduced into the impurity removing unit 1. Dehydration separated liquid from the dehydration unit 2 and impurity-separated liquid from the impurity removing unit are introduced into the biological treatment unit 3. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
