Patent ID: 6884354
Filing Date: 2005-04-26
Classification: C02F,Y02W

Abstract:
1. A process for treating wastewater comprising the steps of: A. introducing the wastewater into a sequencing batch reactor (SBR) for a preselected time period, said SBR containing a microorganism-activated sludge in a lower portion thereof and a volume of clarified effluent at a preestablished liquid level in said SBR prior to addition of the wastewater; B. automatically causing a substantially equal volume of the clarified effluent to be decanted and discharged from said SBR during which the wastewater level in said SBR remains substantially constant; C. mixing the wastewater with the sludge and aerating the wastewater in the SBR, the wastewater being aerated for a selected period of time or until a desired level of wastewater treatment is reached and the microorganisms are viable; D. allowing the aerated wastewater to settle and separate into an upper layer of clarified effluent and a lower layer of sludge after which step A is repeated.