Application of Enhanced In Situ Biodenitrification Technologies

摘要

Elevated levels of nitrate, nitrite, and ammonia have been identified within shallow soil and groundwater regimes at bulk fertilizer storage and handling facilities in Western Canada. Traditional means of addressing impacts have proven to be both costly and often ineffective. This has lead to the development, testing and implementation of techniques for the remediation of fertilizer based groundwater impacts based on the enhanced in situ biodenitrification (EISBD) principles. EISBD techniques have been evaluated using bench studies, field based pilot tests and full scale remediation. It can be concluded that remediation of the fertilizer-based groundwater impacts using EISBD is generally both technically feasible and economical. Important lessons learned, the process of evaluating and applying EISBD techniques, and the positive and negative aspects of this remediation option are described herein.