| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and device for anaerobic treatment, which can reduce the cost for adding chemicals and enable stable treatment by using chemicals generated in pulp mill for methane fermentation treatment. <P>SOLUTION: In a device for anaerobic treatment having a methane fermentation tank 1 which treats an organic waste water 4 discharged from a process of manufacturing kraft pulp, the methane fermentation tank 1 includes an inlet for introducing the organic waste water and an inlet for adding at least one kind of chemical, white liquor, green liquor or weak liquor 5 generated during the process of manufacturing kraft pulp. Also, at the front step of the methane fermentation tank 1, an adjustment tank 2 or acid fermentation tank are provided. At either the adjustment tank 2 or the methane fermentation tank, an inlet for the organic waste water 4 and an inlet for adding at least one kind of chemical, white liquor, green liquor or weak liquor 5 generated during the process of manufacturing kraft pulp are provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
