Advanced search
1 file | 794.15 KB

Stable performance of non-aerated two-stage partial nitritation/anammox (PANAM) with minimal process control

(2012) MICROBIAL BIOTECHNOLOGY. 5(3). p.425-432
Author
Organization
Abstract
Partial nitritation/anammox (PANAM) technologies have rapidly developed over the last decade, but still considerable amounts of energy are required for active aeration. In this study, a non-aerated two-stage PANAM process was investigated. In the first-stage upflow fixed-film bioreactor, nitratation could not be prevented at ammonium loading rates up to 186 mg N l-1 d-1 and low influent dissolved oxygen (0.1 mg O2 l-1). Yet, increasing the loading rate to 416 and 747 mg N l-1 d-1 by decreasing the hydraulic retention time to 8 and 5 h, respectively, resulted in partial nitritation with the desired nitrite to ammonium nitrogen ratio for the subsequent anammox stage (0.711.05). The second-stage anammox reactor was established with a synthetic feeding based on ammonium and nitrite. After establishing anammox at low biomass content (0.5 g VSS l-1), the anammox influent was switched to partial nitritation effluent at a loading rate of 71 mg N l-1 d-1, of which 78% was removed at the stoichiometrically expected nitrite to ammonium consumption ratios (1.19) and nitrate production to ammonium consumption ratio (0.24). The combined PANAM reactors were operated for 3 months at a stable performance. Overall, PANAM appeals economically, saving about 50% of the energy costs, as well as technically, given straightforward operational principles.
Keywords
FREE AMMONIA, SUBMERGED BIOFILTERS, WASTE-WATER, PARTIAL NITRIFICATION, NITROGEN REMOVAL, STAGE PARTIAL NITRITATION, SEQUENCING BATCH REACTOR, START-UP, NITROBACTER, INHIBITION

Downloads

  • Bagchi et al. 2012 MBT PANAM process.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 794.15 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Bagchi, Samik, Rima Biswas, Siegfried Vlaeminck, Kunal Roychoudhury, and Tapas Nandy. 2012. “Stable Performance of Non-aerated Two-stage Partial Nitritation/anammox (PANAM) with Minimal Process Control.” Microbial Biotechnology 5 (3): 425–432.
APA
Bagchi, S., Biswas, R., Vlaeminck, S., Roychoudhury, K., & Nandy, T. (2012). Stable performance of non-aerated two-stage partial nitritation/anammox (PANAM) with minimal process control. MICROBIAL BIOTECHNOLOGY, 5(3), 425–432.
Vancouver
1.
Bagchi S, Biswas R, Vlaeminck S, Roychoudhury K, Nandy T. Stable performance of non-aerated two-stage partial nitritation/anammox (PANAM) with minimal process control. MICROBIAL BIOTECHNOLOGY. 2012;5(3):425–32.
MLA
Bagchi, Samik, Rima Biswas, Siegfried Vlaeminck, et al. “Stable Performance of Non-aerated Two-stage Partial Nitritation/anammox (PANAM) with Minimal Process Control.” MICROBIAL BIOTECHNOLOGY 5.3 (2012): 425–432. Print.
@article{2090289,
  abstract     = {Partial nitritation/anammox (PANAM) technologies have rapidly developed over the last decade, but still considerable amounts of energy are required for active aeration. In this study, a non-aerated two-stage PANAM process was investigated. In the first-stage upflow fixed-film bioreactor, nitratation could not be prevented at ammonium loading rates up to 186 mg N l-1 d-1 and low influent dissolved oxygen (0.1 mg O2 l-1). Yet, increasing the loading rate to 416 and 747 mg N l-1 d-1 by decreasing the hydraulic retention time to 8 and 5 h, respectively, resulted in partial nitritation with the desired nitrite to ammonium nitrogen ratio for the subsequent anammox stage (0.711.05). The second-stage anammox reactor was established with a synthetic feeding based on ammonium and nitrite. After establishing anammox at low biomass content (0.5 g VSS l-1), the anammox influent was switched to partial nitritation effluent at a loading rate of 71 mg N l-1 d-1, of which 78\% was removed at the stoichiometrically expected nitrite to ammonium consumption ratios (1.19) and nitrate production to ammonium consumption ratio (0.24). The combined PANAM reactors were operated for 3 months at a stable performance. Overall, PANAM appeals economically, saving about 50\% of the energy costs, as well as technically, given straightforward operational principles.},
  author       = {Bagchi, Samik and Biswas, Rima and Vlaeminck, Siegfried and Roychoudhury, Kunal  and Nandy, Tapas},
  issn         = {1751-7907},
  journal      = {MICROBIAL BIOTECHNOLOGY},
  language     = {eng},
  number       = {3},
  pages        = {425--432},
  title        = {Stable performance of non-aerated two-stage partial nitritation/anammox (PANAM) with minimal process control},
  url          = {http://dx.doi.org/10.1111/j.1751-7915.2012.00336.x},
  volume       = {5},
  year         = {2012},
}

Altmetric
View in Altmetric
Web of Science
Times cited: