Dear Mr. YAN From my ...
Published by AGGASIT DAD, Energy and Environmental including CDM and Innovation Project Consultant Freelancer
Dear Mr. YAN
From my experience, I will use COD/N ratio by using anoxic but 12 hr is not enough. If you use AS or SBR you need more time for COD 1000 and TN 50 for digestion, The first tank you are correct on operation but for the second you should decresing DO to 0.5ppm for Anoxic and COD will be remove as well. more infor aggasit2012@gmail.com and whatapp +66917027747
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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