Patent ID: 6706171
Filing Date: 2004-03-16
Classification: C02F,Y02W

Abstract:
A system for removing BOD and NH3 from wastewater comprising:a) a first wastewater treatment tank T1 having a first tank inlet I1 and a first tank outlet O1 with a first tank filter F1; b) another wastewater treatment tank Tnâˆ’1 operatively connected to tank T1 to permit wastewater to flow between tanks T1 and Tnâˆ’1; c) an Nth wastewater treatment tank Tn having an Nth tank inlet In and an Nth tank outlet On with an Nth tank filter Fn operatively connected to tank Tnâˆ’1 to permit wastewater to flow between tanks Tnâˆ’1 and Tn; d) a NH3detector AD1 connected to tank T1; e) a NH3 detector ADn connected to tank Tn; f) a TSS detector TD1 connected to tank T1; g) a TSS detector TDn connected to tank Tn; h) an air supply connected to at least one of said tanks; and i) a controller connected to an air supply inlets I1 and In, outlets O1 and On, filters F1 and Fn, NH3 detectors AD1 and ADn, and TSS detectors TD1 and TDn, the controller shifting between operational cycles C1 and C2, wherein in cycle C1, I1 and On are on, and In is off until AD1&gE;X or TD1&lE;Y, wherein X and Y are selected concentrations of NH3 and TSS, respectively, and wherein in cycle C2, In and O1 are on, and I1 is off until ADn&gE;X or TDn&lE;Y.