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LNAPL Free Product Recovery Methods

Posted on December 3rd, 2014

In situations when light non-aqueous phase liquid (LNAPL) is discovered in groundwater, free product recovery is required. The NJDEP recommends several different methods for free product recovery such as LNAPL skimming, Bioslurping/Enhanced Fluid Recovery, water/fluid injection and excavating for mass LNAPL recovery. JM Sorge, Inc. (JMS) recently utilized excavating for mass LNAPL recovery as an effective method for containing the free product in groundwater at a former trucking repair facility. Since site conditions permitted large excavations for an extended period of time, JMS was able to delineate the LNAPL in groundwater by expanding the excavations based on observing the entry of free product on the groundwater surface....more


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