LAUNDRY WASTEWATER BIOLOGICAL TREATMENT PREPARATION, AND DEVICE AND METHOD FOR TREATING LAUNDRY WASTEWATER BY USING SAME

摘要

The present invention includes: a laundry wastewater tank that temporarily stores laundry wastewater from a plant facility; a biological treatment tank in which the laundry wastewater from the laundry wastewater tank is aerated and mixed with activated sludge; a treated water tank that stores the treated laundry wastewater that has been biologically treated; and a treatment preparation supplying device that supplies a laundry wastewater biological treatment preparation to the biological treatment tank. The laundry wastewater biological treatment preparation is introduced when a change in water quality that deteriorates the biological treatment in the biological treatment tank is detected. Thus, biological treatment can be performed stably.

主权项

1. A laundry wastewater biological treatment preparation, for being added to activated sludge for treating laundry wastewater that has been used to wash used clothing of plant workers or used cloth,
the laundry wastewater biological treatment preparation being a freeze-dried sludge obtained by freeze-drying a laundry wastewater-acclimatized activated sludge that has been acclimatized using the laundry wastewater.