Design and construction of a reduced temperature testing apparatus for denitrification

Lori Krider, Bruce Wilson, Joe Magner

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


Excess nitrogen in aquatic systems contributes to significant water quality degradation. Agricultural runoff during springtime snowmelt and rainfall events transports large quantities of nitrogen from agricultural fields into aquatic systems. Previous laboratory experiments to evaluate denitrification under reduced temperature scenarios are often limited to enclosed columns in small freezer spaces. This large-scale laboratory experiment uses individual housing units (chambers) to contain surface exposed bins (troughs), which house media, soil, and plants. This apparatus is designed for indoor application to test for denitrification under reduced temperature scenarios. Each chamber is equipped to simulate tile drainage flow under springtime air and water temperatures found in the Upper Midwest, USA.

Original languageEnglish (US)
Title of host publication10th International Drainage Symposium 2016
PublisherAmerican Society of Agricultural and Biological Engineers
Number of pages5
ISBN (Electronic)9781510855250
StatePublished - Jan 1 2016
Externally publishedYes
Event10th International Drainage Symposium 2016 - Minneapolis, United States
Duration: Sep 6 2016Sep 9 2016

Publication series

Name10th International Drainage Symposium 2016


Other10th International Drainage Symposium 2016
Country/TerritoryUnited States


  • Bioreactors
  • Controlled environment
  • Denitrification


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