| dc.contributor | Campos Gómez, José | |
| dc.date.accessioned | 2022-01-28T17:11:17Z | |
| dc.date.accessioned | 2022-11-08T20:38:43Z | |
| dc.date.available | 2022-01-28T17:11:17Z | |
| dc.date.available | 2022-11-08T20:38:43Z | |
| dc.date.created | 2022-01-28T17:11:17Z | |
| dc.identifier | https://repositorio.uai.cl//handle/20.500.12858/3472 | |
| dc.identifier | 10.1155/2017/6571671 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5148977 | |
| dc.description.abstract | The effect of free ammonia (NH3 or FA), free nitrous acid (HNO2 or FNA), and total alkalinity (TA) on the performance of a partial nitrification (PN) sequencing batch reactor (SBR) treating anaerobically pretreated pig slurry was studied. The SBR was operated under alternating oxic/anoxic (O/A) conditions and was fed during anoxic phases. This strategy allowed using organic matter to partially remove nitrite (NO2 −) and nitrate (NO3 −) generated during oxic phases.The desired NH4 + to NO2 − ratio of 1.3 g N/g N was obtained when an Ammonium Loading Rate (ALR) of 0.09 g NH4 +-N/L⋅d was applied. The system was operated at a solid retention time (SRT) of 15–20 d and dissolved oxygen (DO) levels higher than 3 mg O2/L during the whole operational period. PN mainly occurred caused by the inhibitory effect of FNA on nitrite oxidizing bacteria (NOB). Once HNO2 concentration was negligible, NH4 + was fully oxidized to NO3 − in spite of the presence of FA. The use of biomass acclimated to ammonium as inoculum avoided a possible effect of FA on NOB activity. | |
| dc.title | Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating Oxic/Anoxic,SBR. | |
| dc.type | Artículo WoS | |
