Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating OxicAnoxic SBR
Joint Authors
Belmonte, M.
Mosquera-Corral, A.
Hsieh, Chia-Fang
Guerrero, Lorna
Méndez, Ramón
Vidal, Gladys
Campos, José Luis
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-06
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Belmonte, M.& Hsieh, Chia-Fang& Campos, José Luis& Guerrero, Lorna& Méndez, Ramón& Mosquera-Corral, A.…[et al.]. 2017. Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating OxicAnoxic SBR. BioMed Research International،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1138152
Modern Language Association (MLA)
Belmonte, M.…[et al.]. Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating OxicAnoxic SBR. BioMed Research International No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1138152
American Medical Association (AMA)
Belmonte, M.& Hsieh, Chia-Fang& Campos, José Luis& Guerrero, Lorna& Méndez, Ramón& Mosquera-Corral, A.…[et al.]. Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating OxicAnoxic SBR. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1138152
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1138152