Patent ID: 7513999
Filing Date: 2009-04-07
Classification: C02F,Y02W

Abstract:
1. A method of treating wastewater in a wastewater treatment plant comprising the steps of: receiving an influent of wastewater into a wastewater treatment basin or reactor; oxidizing biosolids within the wastewater treatment basin or reactor; discharging a stream from the wastewater treatment basin or reactor; diverting a portion of the stream discharged from the wastewater treatment reactor to a plug-flow type reactor; introducing ozone to the plug-flow type reactor inducing lysis of biosolids within the plug-flow type reactor with the ozone; and returning the diverted stream to the wastewater treatment basin or reactor; wherein the ozone is introduced to the diverted stream in the range of about 1.0 to 10.0 g of ozone per day per kg of sludge in the wastewater treatment basin or reactor and wherein the contact time of the ozone with the diverted stream in the plug flow reactor ranges between about 10 to 60 seconds.