The invention belongs to the technical field of polluted
groundwater environment restoration
engineering, and specifically provides a
groundwater light non-aqueous phase liquid
pollutant cleaning
system. The
system comprises a
sewage treatment module, a
groundwater extraction well containing a groundwater layer and a light non-aqueous phase
liquid layer, wherein the light non-aqueous phase liquidlayer floats on the surface of the groundwater layer, and the
system also comprises a groundwater level monitoring module, a
liquid phase extraction module and a
gas phase extraction module, wherein the groundwater level monitoring module is used to monitor a liquid level of the groundwater extraction well in real time, and feedback the liquid level to the
liquid phase extraction module and the
gas phase extraction module; the
liquid phase extraction module is used to extract a light non-aqueous phase liquid located on the surface of groundwater to a
sewage treatment module according to the liquid level; and the
gas phase extraction module is used to evacuate the upper part of the groundwater extraction well to form a negative pressure to the
sewage treatment module according to the liquidlevel. The system can greatly improve the restoration efficiency and restoration effect of the non-aqueous phase liquid, can reduce or eliminate the affection of the "tailing" effect, and avoids expansion of a
pollution scope of the non-aqueous phase liquid.