Treatment of wastewater

A wastewater treatment system forming a treatment space connected to a sewer space for receiving wastewater from the sewer space and including a control structure for controlling fluid flow of the wastewater from the sewer space to the treatment space, the system comprising:

• a parameter structure configured to provide a treatment parameter by continuous measurement, wherein the treatment parameter is selected from the group consisting of:
• Total-N, NH4—N, NH4—N+NO3—N, N2O, Total-P, PO4—P, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), TOC (Total Organic Carbon), TSS (Total Suspended Solids), MLSS (Mixed Liquor Suspended Solids), DO (Dissolved Oxygen), turbidity, OUR (Oxygen Uptake Rate), sludge blanket level, SVI (sludge volume index), sludge composition based on DNA sequencing analysis technology, and combinations thereof, to thereby provide an online treatment parameter,
• a capacity structure configured to determine an actual spare plant capacity indicating an amount of wastewater which can be supplied to the treatment space, wherein the actual spare capacity is based on prediction of a least one of the amount of wastewater treated and the amount of wastewater supplied through the treatment inlet,
• a volume structure configured to determine an actual spare wastewater storage volume indicating an amount of wastewater which can be retained in the sewer space,
• wherein
• the control structure is configured to varying the flow of the wastewater from the sewer space to the treatment space based on at least the treatment parameter, the actual spare plant capacity, and the actual spare sewer volume.