| 摘要 |
PURPOSE: To enable the treatment by using an upflow anaerobic sludge blanket process equipment (UASB) or fixed bed treating equipment at the time of treating highly concentrated organic waste water contg. biodegradable organic solid matter. CONSTITUTION: In this treatment, waste water 10 contg. organic solid matter is separated by sedimentation in a sedimentation tank 14 and thereafter, a supernatant liquid A having a lesser organic solid matter content is treated by using an anaerobic treating equipment 18 such as upflow anaerobic sludge blanket process equipment (UASB), fixed bed treating equipment, or the like to subject the liquid A to anaerobic digestion treatment. At the same time, a liquid concentrate C of sedimented solid matter, that contains the organic solid matter separated by the sedimentation in the sedimentation tank 14, is subjected to solubilization treatment at a high temp. in a solubilization vessel 24. Thereafter, the resulting solubilization product, together with the waste water 10 contg. organic solid matter, is separated by sedimentation in the sedimentation tank 14 and then introduced into the anaerobic treating equipment 18, or directly introduced into the treating equipment 18. |
