GROUNDWATER PUMPING SYSTEM AND METHOD FOR PREVENTING EMERGENCY SPREAD OF CONTAMINATED GROUNDWATER

摘要

Disclosed are a groundwater pumping system for emergency spread prevention of contaminated groundwater and a method therefor to minimize the scope of contamination caused by the spread of contaminated groundwater when a leak accident of a pollutant occurs or a concern about the spread of contamination is detected in an area where a leak is confirmed. . A groundwater pumping system for preventing emergency spread of contaminated groundwater includes: a plurality of pumping wells disposed in the ground adjacent to the groundwater pollution source to pump groundwater flowing downstream from the groundwater pollution source; a plurality of submersible pumps disposed in each of the pumping wells; a plurality of inner observation wells arranged underground in a row in a region downstream of the groundwater contamination source; a plurality of outer observation wells arranged underground in a row in parallel to the outward direction of the pumping wells with respect to the inner observation wells; and a controller for controlling the operation of the submersible pump disposed in each of the pumping wells so that the groundwater head of the inner observation wells is lower than the groundwater head of the outer observation wells when an emergency situation causing groundwater contamination occurs calculates the head gradient of each of the inner observation wells and each of the outer observation wells, and when the calculated head gradient is greater than the set value, controls to reduce the amount of pumped water by the pumping well closest to the corresponding inner observation well. prevent the depletion of groundwater.