HMBRHitachi Multiplatform Backup/Restore
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Phase III allowed us to compare the difference between CMBR and HMBR in terms of pollutant removal efficiency.
With this HMBR, it was impossible to obtain higher nitrogen removal rates.
DO levels of between 0.5 and 1 mg/L were observed in periods 4, 11, and 18, with simultaneous and complete nitrification and denitrification in the HMBR with nitrogen removal efficiency observed of about 95% for those periods.
An innovative HMBR configuration enabled improved depollution efficiency without increasing the amount of suspended bacteria in the mixed liquor.
HMBR also enabled highly efficient nitrification and denitrification thanks to the development of a biofilm on the inert surface of the filling material and the presence of both aerobic and anoxic conditions in the reactor.