Non-Traditional
In addition to traditional engineering tasks, AECOM is responsible for the design and implementation of demonstration projects exploring several complementary non-traditional options for nitrogen removal, including floating constructed wetlands, aquaculture, and permeable reactive barriers (PRBs).
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Aquaculture
The overall purpose of the Orleans shellfish demonstration projects is to locally measure the nitrogen removal benefits of shellfish cultivation in impacted coastal embayments, and to demonstrate the practical applications of shellfish propagation and aquaculture expansion within the Town of Orleans.
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Floating Constructed Wetlands (FCW)
Floating Constructed Wetlands (FCWs) are one of the non-traditional tools being considered by the Town of Orleans to manage nitrogen within the Town’s coastal embayments.
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Landfill
Included on this page are documents related to the investigation and mitigation of nitrogen compounds in groundwater at the Orleans Municipal Landfill and former septage lagoons.
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Nitrogen Reducing Barriers (NRB)
NRBs are a non-proprietary design nitrogen-reducing septic system.
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Permeable Reactive Barriers (PRB)
This page includes planning documents and demonstration test results for Permeable Reactive Barriers (PRBs), a passive treatment technology designed in this application to intercept and treat nitrate in groundwater before it reaches downgradient surface waters.