Abstract
Partial nitritation (PN) and anaerobic ammonium oxidation (ANAMMOX) were applied in biofilter reactors to treat low ammonium strength wastewater. The removal efficiency and contribution of PN-ANAMMOX process to CODcr, BOD5, NH3-N, TN and TP were investigated. The results showed that the average removal rates of CODcr, BOD5, NH3-N, TN and TP via PN-ANAMMOX process were 91.9%, 96.7%, 98.9%, 92.8% and 93.3% respectively when hydraulic load was 1.0 m/d. The effluent CODcr, BOD5, NH3-N, TN and TP concentrations were lower than 13.8, 4.8, 0.76, 4.4 and 0.28 mg/L, respectively. The PN-ANAMMOX process showed high efficiency and stability in removing C, N and P pollutants from wastewater. PN reactor played a major role in the removal of CODcr, BOD5, NH3-N and TP. ANAMMOX reactor played a leading role in TN removal.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
