Pump and treat systems utilize submersible pumps to remove contaminated groundwater, and a variety of treatment technologies on the surface to remediate the groundwater before discharge. With the treatment portion above ground, this type of system can be used with a variety of contaminants, including chlorinated solvents and petroleum.
In pump and treat systems, the submersible pumps can either be electrically or pneumatically powered. The discharge lines from the various wells are normally combined at the treatment system using a manifold. The treatment technologies employed are dependent on the contaminants and required discharge quality. A typical treatment chain for petroleum contamination might consist of an oil/water separator, an air stripper, and activated-carbon vessels.
Design considerations for pump and treat systems include the number of extraction wells, the overall water flow rate, the type of contaminant, and the inlet and discharge contaminant levels. As an enhancement, this technology can be combined with soil vapor extraction to form vacuum enhanced pump and treat systems.
Please follow the links to view the various types of equipment used in pump and treat systems.
