Continuous nitrous oxide abatement in a novel denitrifying off-gas bioscrubber

Verfasser / Beitragende:
[Osvaldo Frutos, Ilan Arvelo, Rebeca Pérez, Guillermo Quijano, Raúl Muñoz]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/8(2015-04-01), 3695-3706
Format:
Artikel (online)
ID: 605503915
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024 7 0 |a 10.1007/s00253-014-6329-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-014-6329-8 
245 0 0 |a Continuous nitrous oxide abatement in a novel denitrifying off-gas bioscrubber  |h [Elektronische Daten]  |c [Osvaldo Frutos, Ilan Arvelo, Rebeca Pérez, Guillermo Quijano, Raúl Muñoz] 
520 3 |a The potential of a bioscrubber composed of a packed bed absorption column coupled to a stirred tank denitrification bioreactor (STR) was assessed for 95days for the continuous abatement of a diluted air emission of N2O at different liquid recycling velocities. N2O removal efficiencies of up to 40 ± 1% were achieved at the highest recirculation velocity (8mh−1) at an empty bed residence time of 3min using a synthetic air emission containing N2O at 104 ± 12 ppmv. N2O was absorbed in the packed bed column and further reduced in the STR at efficiencies >80% using methanol as electron donor. The long-term operation of the bioscrubber suggested that the specialized N2O degrading community established was not able to use N2O as nitrogen source. Additional nitrification assays showed that the activated sludge used as inoculum was not capable of aerobically oxidizing N2O to nitrate or nitrite, regardless of the inorganic carbon concentration tested. Denitrification assays confirmed the ability of non-acclimated activated sludge to readily denitrify N2O at a specific rate of 3.9mg N2O g VSS h-1 using methanol as electron donor. This study constitutes, to the best of our knowledge, the first systematic assessment of the continuous abatement of N2O in air emission. A characterization of the structure of the microbial population in the absorption column by DGGE-sequencing revealed a high microbial diversity and the presence of heterotrophic denitrifying methylotrophs. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Biofiltration  |2 nationallicence 
690 7 |a Denitrification  |2 nationallicence 
690 7 |a Greenhouse gas  |2 nationallicence 
690 7 |a N2O  |2 nationallicence 
690 7 |a Wastewater treatment plants  |2 nationallicence 
700 1 |a Frutos  |D Osvaldo  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
700 1 |a Arvelo  |D Ilan  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
700 1 |a Pérez  |D Rebeca  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
700 1 |a Quijano  |D Guillermo  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
700 1 |a Muñoz  |D Raúl  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/8(2015-04-01), 3695-3706  |x 0175-7598  |q 99:8<3695  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-014-6329-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-014-6329-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Frutos  |D Osvaldo  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Arvelo  |D Ilan  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pérez  |D Rebeca  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Quijano  |D Guillermo  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Muñoz  |D Raúl  |u Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/8(2015-04-01), 3695-3706  |x 0175-7598  |q 99:8<3695  |1 2015  |2 99  |o 253