Comparison of intermittently aerated continuous and batch biofilm reactor in nutrient removal.
Removal efficiency of TOC ranged between 86-89% in an intermittently aerated reactor. High efficiency in TKN removal and nitrification was found at lower applied load or longer retention time such as 2 days. TKN removal and nitrification efficiency was found to be 17-96% and 35-99% respectively. Through examination and comparison of the removal efficiencies, the stability of nitrification/denitrification and the biological phosphorus removal it was found that the sequencing batch feeding system gave a higher performance in total nitrogen and phosphorus removals. In the SBR reactor, nitrogen removal efficiency was mainly controlled by organic loading. Nitrification efficiency ranged between 31-56%. Nearly complete denitrification was observed in the sequencing batch reactor.
Altinbaş
Ufuk
U
TUBITAK-Marmara Research Center, Env. Eng. Dept, 41470 Gebze-Kocaeli, Turkey. altinufuk@yahoo.com
Oztürk
Izzet
I
D018441:Biofilms; D019149:Bioreactors; D005068:Eutrophication; D009584:Nitrogen / Q000302:isolation & purification*; D010100:Oxygen; D010507:Periodicity; D010758:Phosphorus / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
D010758:Phosphorus; D009584:Nitrogen; D010100:Oxygen