Patent ID: 8808543
Filing Date: 2014-08-19
Classification: C02F,Y02W

Abstract:
1. A method for treating wastewater comprising: performing a mechanical screening of wastewater in a mechanical wastewater treatment unit; receiving the wastewater directly from the mechanical wastewater treatment unit in at least one equalization basin reactor under dry weather conditions with a dry weather peak hourly flow rate and under wet weather conditions with a wet weather peak hourly flow rate; performing a first wastewater treatment in the at least one equalization basin reactor under the dry weather conditions and under the wet weather conditions to obtain partially treated wastewater; feeding an outflow of the partially treated wastewater from the at least one equalization basin reactor into at least one bioreactor; performing a second wastewater treatment in the at least one bioreactor to obtain substantially treated wastewater; feeding an outflow of the substantially treated wastewater from the at least one bioreactor into a gravity settling clarifier or a floatation clarifier; precipitating an activated sludge in the clarifier from the substantially treated wastewater to obtain treated water; and discharging the treated water at a discharge point, wherein the at least one equalization basin reactor has an inflow surge volume capacity of about 30% to about 300% of an average daily flow volume; and, wherein a portion of the wastewater received in the at least one equalization basin reactor under wet weather conditions comprises stormwater from infiltration and inflow into an upstream municipal sewer system.