we deal the wastewater by MBBB,first aerotion tank and second aerotion tank.the process for COD remove is all right,but the NH3-N reduction rate is not stable,we lower the DO in the second aerotion tank, althought the NO2-N is decreased and NO3-N is increased,but the NH3-N reduction rate is still all right.
Published by Lin JYH-YAN, advanced engineer at FORMOSA PETROCHEMICAL CORPORATION
we deal the wastewater by MBBB,first aerotion tank and second aerotion tank.the process for COD remove is all right,but the NH3-N reduction rate is not stable,we lower the DO in the second aerotion tank, althought the NO2-N is decreased and NO3-N is increased,but the NH3-N reduction rate is still all right.