Title:
GROUNDWATER PURIFICATION SYSTEM AND GROUNDWATER PURIFICATION METHOD
Document Type and Number:
Japanese Patent JP2015217351
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To purify groundwater in a contamination range of the ground from a deep layer side to the vicinity of a ground surface even if the contamination range exists in a laminated ground such as an impermeable layer, in a groundwater purification system for purifying groundwater in the contamination range of the ground by passing water through the contamination range.SOLUTION: A groundwater purification system 10 for purifying groundwater in a contamination range A of the ground by passing water through the contamination range A comprises: an impermeable wall 12 that is constructed so as to surround an area to be purified including the contamination range A and extend from a ground surface to a depth deeper than a groundwater level W.L in an area on the outer peripheral side of the area to be purified; a water-impervious sheet 40 that covers the ground surface of the area to be purified; a pouring well 30 that extends from the ground surface of the area to be purified to a depth deeper than the contamination range A and pouring water in a range from the ground surface of the area to be purified to a depth deeper than the contamination range A; and a pumping well 20 that extends from the ground surface of the area to be purified to a depth deeper than the contamination range A, is set to a negative pressure in the inside thereof, and pumps up water from a depth deeper than the contamination range A.
Inventors:
ISHIDA MICHIHIKO
Application Number:
JP2014103367A
Publication Date:
December 07, 2015
Filing Date:
May 19, 2014
Export Citation:
Assignee:
OHBAYASHI CORP
International Classes:
C02F1/00
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation