TY  - JOUR
AU  - Jeyakumar, Lordwin Girish Kumar
AU  - McKenzie, David B.
AU  - Christianson, Laura E.
AU  - Derdall, Evan
PY  - 2021
DA  - 2021/04/15
TI  - Initial Validation of a Replicated Field-scale Denitrifying Bioreactor Facility in a Boreal Environment
JO  - Advances in Environmental and Engineering Research
SP  - 005
VL  - 02
IS  - 02
AB  - Denitrifying bioreactor technology, where a solid carbon source (wood chips) acts as a reactive medium to intercept agricultural tile drainage water, has been successfully used to convert nitrate (NO3-) to di-nitrogen (N2) gas. Four full-size field-scale (80ft long x 10 ft. wide x 4 ft. deep), replicated wood chip bioreactors have been constructed at the St. John’s Research and Development Centre (47°30'48.080" N; 52°47'00.020" W; 110 m above mean sea level), and are successful at removing a significant amount of nitrate from agricultural subsurface drainage water. The main objectives of this study were to (1) design, construct, and evaluate four field-scale wood chip bioreactors and (2) investigate the effective porosity and internal flow dynamics of one of these field-scale woodchip bioreactors as a proxy for the others. A sodium chloride (NaCl) tracer study was investigated in the field scale wood chip bioreactor along with the network of bioreactor wells. The theoretical retention time was calculated to be approximately 8.0 h based on the active flow volume, the length and depth of the system, the assumed porosity of the woodchip material, and the average flow rate. In comparison, the observed retention time was 10.68 h.
SN  - 2766-6190
UR  - https://doi.org/10.21926/aeer.2102005
DO  - 10.21926/aeer.2102005
ID  - Jeyakumar2021
ER  -