Phosphorus removal from SBR with controlled denitrification for weak sewage.
Most SBRs operating for weak sewage have a tendency of poor removal of phosphorus due to NO3N inhibition. To minimize this inhibition, NO3N storage was utilized in this study. With influent BOD 100 mg/L and VFA 30 mg/L, a total of the maximum removable nitrogen and phosphorus was about 25 mg/L with 8 hr cycle. With this storage, VFA utilized for phosphorus removal could be maximized. The effluent nitrogen and phosphorus levels were generally 11 and 1 mg/L, respectively.
Choi
E
E
Dept of Civil and Environmental Engineering, Korea University, 1 Anamdong, Seoul 136-701, Korea.
Park
H
H
Rhu
D
D
D019149:Bioreactors; D009584:Nitrogen / Q000302:isolation & purification*; D010758:Phosphorus / Q000302:isolation & purification*; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*
D012722:Sewage; D010758:Phosphorus; D009584:Nitrogen