Performance of denitrification beds for removing nitrate from drainage water at cold temperatures

Ehsan Ghane, Gary W. Feyereisen, Carl J. Rosen, Michael J. Sadowsky, Laura Elizabeth Christianson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Transport of soluble nitrogen and phosphorus to water bodies has been a concern for many years due to human health issues and is a major contributor to the formation of oxygen deficiency in aquatic ecosystems. Agricultural subsurface drainage is one pathway for transport of excess nutrients to surface water. Compared to other BMPs, denitrification beds (woodchip bioreactors) provide a practical solution with low maintenance and comparable expenses. The objective of this research is confirm justification for enhancing denitrification bed performance at cold temperatures by supplementing readily available carbon (i.e., acetate), and adding cold-adapted and metabolically-active bacteria to bioreactors. We retrofitted an existing bioreactor into eight woodchip beds, providing a unique replicated experiment that allows flow control and microbial manipulation. Water samples were collected during May and June 2016 for each woodchip bed. Nitrate load reduction ranged from 0.4% to 8.7% at inflow temperatures ranging from 7.5°C to 9.3°C. This shows that there is a need for a strategy to boost nitrate removal from drainage water at cold temperatures. Therefore, we will enhance nitrate removal by supplementing readily available carbon (i.e., acetate) and adding cold-adapted and metabolically-active bacteria to bioreactors. The applied significance of this research is that it will optimize bioreactor performance and enhance the quality of agricultural drainage water.

Original languageEnglish (US)
Title of host publication10th International Drainage Symposium 2016
PublisherAmerican Society of Agricultural and Biological Engineers
Pages236-239
Number of pages4
ISBN (Electronic)9781510855250
DOIs
StatePublished - Jan 1 2016
Event10th International Drainage Symposium 2016 - Minneapolis, United States
Duration: Sep 6 2016Sep 9 2016

Publication series

Name10th International Drainage Symposium 2016
Volume2016-January

Other

Other10th International Drainage Symposium 2016
CountryUnited States
CityMinneapolis
Period9/6/169/9/16

Fingerprint

drainage water
bioreactor
denitrification
nitrate
temperature
acetate
bacterium
flow control
carbon
aquatic ecosystem
inflow
cold
drainage
phosphorus
surface water
nutrient
nitrogen
experiment
water
removal

Keywords

  • Denitrifying bioreactor
  • Nitrate
  • Subsurface drainage
  • Tile drainage
  • Woodchip bioreactor

ASJC Scopus subject areas

  • Waste Management and Disposal

Cite this

Ghane, E., Feyereisen, G. W., Rosen, C. J., Sadowsky, M. J., & Christianson, L. E. (2016). Performance of denitrification beds for removing nitrate from drainage water at cold temperatures. In 10th International Drainage Symposium 2016 (pp. 236-239). (10th International Drainage Symposium 2016; Vol. 2016-January). American Society of Agricultural and Biological Engineers. https://doi.org/10.13031/ids.20162493465

Performance of denitrification beds for removing nitrate from drainage water at cold temperatures. / Ghane, Ehsan; Feyereisen, Gary W.; Rosen, Carl J.; Sadowsky, Michael J.; Christianson, Laura Elizabeth.

10th International Drainage Symposium 2016. American Society of Agricultural and Biological Engineers, 2016. p. 236-239 (10th International Drainage Symposium 2016; Vol. 2016-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ghane, E, Feyereisen, GW, Rosen, CJ, Sadowsky, MJ & Christianson, LE 2016, Performance of denitrification beds for removing nitrate from drainage water at cold temperatures. in 10th International Drainage Symposium 2016. 10th International Drainage Symposium 2016, vol. 2016-January, American Society of Agricultural and Biological Engineers, pp. 236-239, 10th International Drainage Symposium 2016, Minneapolis, United States, 9/6/16. https://doi.org/10.13031/ids.20162493465
Ghane E, Feyereisen GW, Rosen CJ, Sadowsky MJ, Christianson LE. Performance of denitrification beds for removing nitrate from drainage water at cold temperatures. In 10th International Drainage Symposium 2016. American Society of Agricultural and Biological Engineers. 2016. p. 236-239. (10th International Drainage Symposium 2016). https://doi.org/10.13031/ids.20162493465
Ghane, Ehsan ; Feyereisen, Gary W. ; Rosen, Carl J. ; Sadowsky, Michael J. ; Christianson, Laura Elizabeth. / Performance of denitrification beds for removing nitrate from drainage water at cold temperatures. 10th International Drainage Symposium 2016. American Society of Agricultural and Biological Engineers, 2016. pp. 236-239 (10th International Drainage Symposium 2016).
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