| 摘要 |
<p>This organic wastewater biological treatment method allows performing stable biological treatment in which dispersed bacteria are suitably consumed. In this organic wastewater biological treatment method, dispersed bacteria are generated from bacteria by passing organic wastewater to an aerobic first biological tank, first biological treatment water which contains the dispersed bacteria from said first biological treatment tank is introduced into an aerobic second biological treatment tank to which a fluidized bed carrier has been added, and said dispersed bacteria are consumed by microorganisms. This organic wastewater biological treatment method is characterized in that the total volumetric BOD loading is 5kg/m3/d or less, and the loading of the dispersed bacteria-derived SS in the first biological treatment water to the carriers in the second biological treatment tank is 8kg[SS]/m3[carriers]/d or less.</p> |
