Patent ID: 11919787
Assignee: OVIVO INC.
Field: Environmental technology (Chemistry)
Classification: CPC C  Y | IPC C

Claim 4:
5. An enhanced biological wastewater treatment system including the wastewater treatment system of claim 2, acting as a mainstream process for removing nitrogen and/or phosphorus, in combination with a sidestream treatment incubator system for generating granular biomass for use in the mainstream process, the sidestream treatment incubator system comprising:
a biological sludge process stream with a succession of incubator process zones, to remove nitrogen and/or phosphorus from activated sludge, configured to receive a continuous influent of solids processing reject water or influent wastewater into the incubator process zones, a first incubator zone of said incubator process zones being an anaerobic or anoxic zone,
an incubator separator configured to receive sludge flow from the incubator process zones, such that sludge flows through the incubator separator, the incubator separator being effective to separate granular sludge from floc sludge such that granular-rich sludge is collected in a bottom area of the incubator separator, and
a recycle flow line configured to carry a majority of the granular-rich sludge in the incubator separator as recycle to the first incubator zone so as to feed the granular biomass with influent soluble bCOD, and a further granular-rich line configured to carry another portion of the granular-rich sludge in the incubator separator to the mainstream process.