The realization of a hydraulic barrier is an intervention of rapid implementation; often it is used as a safety measure in the case of polluted soil above which the leaching of the contaminated towards the aquifer takes place and, in this case, it remains active even after the removal of the polluted soil, until reaching values ​​considered in the norm for water underground.
Hydraulic barriers are typically placed at the limits of the contaminated area and take advantage of consolidated technologies for optimal operation and yield. Submerged electric pumps capable of capturing the polluting water flows deriving from piezometric depression are fundamental among the aforementioned technologies. The emitted waters are treated through a system of absorption of organic solvents (well-barrier) and rehabilitation, so as to stop the propagation of contaminants downstream. This system extracts the contaminated water by sending it to the treatment (also through the Pump & Treat remediation technique) and, therefore, to the discharge into the public sewer. As easily understood, the control of the hydraulic and hydro-chemical containment of pollutants is essential to avoid any escape of substances harmful to human health and the environment.
OFT electric pumps, which ensure an intervention aimed at limiting any type of damage, are equipped with accessories for filtering and cables suitable for permanent immersion in more or less contaminated liquids.