Abstract Denitrifying permeable reactive barriers (PRBs) installed in proximity to impaired waterbodies can help mitigate coastal eutrophication. We monitored the hydro-biogeochemical conditions and assessed nitrogen removal performance of a tidally influenced pilot PRB installed behind a perforated marine bulkhead. The pilot was installed in an area with appreciable submarine groundwater discharge (SGD) and elevated nitrogen concentration likely due to medium – high density residential septic input to the local watershed. The bulkhead PRB reduced groundwater nitrate concentrations from 285 to 429 μM to

中文翻译：

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水生地球化学过程和潮汐影响渗透性反应屏障后的多孔海洋舱壁的脱氮潜力

摘要 安装在受损水体附近的反硝化渗透反应屏障 (PRB) 可以帮助减轻沿海富营养化。我们监测了水生地球化学条件并评估了安装在穿孔海洋舱壁后面的受潮汐影响的试点 PRB 的脱氮性能。该试点安装在一个具有明显海底地下水排放 (SGD) 和氮浓度升高的区域，这可能是由于当地流域的中高密度住宅化粪池输入。隔板 PRB 将地下水硝酸盐浓度从 285 μM 降低到 429 μM