TY - JOUR
T1 - Quantitative and qualitative studies of microorganisms involved in full-scale autotrophic nitrogen removal performance
AU - Muñoz-Palazon, Barbara
AU - Rodriguez-Sanchez, Alejandro
AU - Castellano-Hinojosa, Antonio
AU - Gonzalez-Lopez, Jesus
AU - van Loosdrecth, Mark C.M.
AU - Vahala, Riku
AU - Gonzalez-Martinez, Alejandro
PY - 2018/2
Y1 - 2018/2
N2 - Autotrophic nitrogen removal systems have been implemented at full-scale and provide an efficient way for nitrogen removal from industrial and urban wastewaters. Our study present qualitative and quantitative analysis of archaeal and bacterial amoA genes and Candidatus Brocadiales bacteria analyzed in six full-scale autotrophic nitrogen removal bioreactors. The results showed that ammonium oxidizing bacteria (AOB) were detected in all bioreactors. However, ammonium oxidizing archaea (AOA) were detected only in the non-aerated technologies. Conversely, different Candidatus Brocadiales phylotypes appeared due to differences in influent wastewater composition and hydraulic retention time (HRT). In the same terms multivariate redundancy analysis confirmed that AOA was positively correlated with temperature, ammonium concentration and low HRT. However, AOB population was positively correlated with pH, temperature, and dissolved oxygen concentration. Our data suggested a correlation between the microorganisms involved in the nitrogen removal performance and the operational conditions in the different full-scale bioreactors.
AB - Autotrophic nitrogen removal systems have been implemented at full-scale and provide an efficient way for nitrogen removal from industrial and urban wastewaters. Our study present qualitative and quantitative analysis of archaeal and bacterial amoA genes and Candidatus Brocadiales bacteria analyzed in six full-scale autotrophic nitrogen removal bioreactors. The results showed that ammonium oxidizing bacteria (AOB) were detected in all bioreactors. However, ammonium oxidizing archaea (AOA) were detected only in the non-aerated technologies. Conversely, different Candidatus Brocadiales phylotypes appeared due to differences in influent wastewater composition and hydraulic retention time (HRT). In the same terms multivariate redundancy analysis confirmed that AOA was positively correlated with temperature, ammonium concentration and low HRT. However, AOB population was positively correlated with pH, temperature, and dissolved oxygen concentration. Our data suggested a correlation between the microorganisms involved in the nitrogen removal performance and the operational conditions in the different full-scale bioreactors.
KW - AmoA
KW - Anammox
KW - Archaea
KW - Bacteria
KW - Full-scale
KW - Nitrogen removal
UR - http://www.scopus.com/inward/record.url?scp=85028570096&partnerID=8YFLogxK
U2 - 10.1002/aic.15925
DO - 10.1002/aic.15925
M3 - Article
AN - SCOPUS:85028570096
VL - 64
SP - 457
EP - 467
JO - AIChE Journal
JF - AIChE Journal
SN - 0001-1541
IS - 2
ER -