@article {10.3844/ajessp.2015.216.226,
article_type = {journal},
title = {Preliminary Evaluation of a Permeable Reactive Barrier for Reducing Groundwater Nitrate Transport from a Large Onsite Wastewater System},
author = {Humphrey, Charles and Pradhan, Sushama and Bean, Eban and O’Driscoll, Michael and Iverson, Guy},
volume = {11},
number = {4},
year = {2015},
month = {Aug},
pages = {216-226},
doi = {10.3844/ajessp.2015.216.226},
url = {https://thescipub.com/abstract/ajessp.2015.216.226},
abstract = {A permeable reactive barrier was installed between a large Onsite Wastewater System (OWS) and a monitoring well located down-gradient from the OWS. Groundwater samples from the well had shown elevated and increasing concentrations of NO3--N (>20 mg L-1 for 2 years). The barrier was constructed using woodchips from various tree species that were placed in a trench excavated to approximately the same depth as the well which was experiencing elevated NO3--N concentrations. Groundwater samples (5) were collected from the well between two weeks and four months after the barrier was installed. Groundwater NO3--N concentrations dropped by an average of 5 mg L-1, while Dissolved Organic Carbon (DOC) concentrations increased by 11 mg L-1 and Cl concentrations stayed relatively stable (},
journal = {American Journal of Environmental Sciences},
publisher = {Science Publications}
}