| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for realizing an improvement in treatment efficiency and reduction in the caloric value required for heating in a solubilization step, while realizing improvement in the methane recovery rate and volume reduction in the discharge amount of waste sludge generated by anaerobic treatment to the outside of the system, when various kinds of organic waste such as various kinds of organic sludge and solid organic waste are anaerobically treated. <P>SOLUTION: This treatment method for organic waste is at least provided with (1) a first solubilization step for solubilizing sludge like organic waste at the temperature range of 100-150°C, (2) a first solid/liquid separation step for solid/liquid separating the solubilized sludge solubilized in the first solubilization step, (3) a second solubilization step for solubilizing separated sludge separated in the first solid/liquid separation step at the temperature range of 160-230°C, (4) a second solid/liquid separation step for solid/liquid separating the solubilized sludge solubilized in the second solubilization step, and (5) an anaerobic treatment step for anaerobically treating the separated liquid separated in the first solid/liquid separation step and second solid/liquid separation step. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
