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Title:
GROUNDWATER RECHARGE SYSTEM
Document Type and Number:
Japanese Patent JP2017186772
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a groundwater recharge system, in which water flow efficiency in the recharge system is maintained and clogging of ground near a water injection well may be prevented.SOLUTION: A groundwater recharge system 11 comprises a closed drawn water well 1 for drawing groundwater W, a removal part 20 into which the groundwater W drawn from the drawn water well 1 is introduced and in which floating substance component and metal oxide contained in the groundwater W are removed, a reducing agent supplementation part 14 in which groundwater W filtrated at a filtration part 20 is supplied with reducing agent Re at a level where the oxidation-reduction potential of the groundwater W is reduced to a predetermined value or less, a water injection well 2 for injecting the groundwater W supplied with the reducing agent Re into the ground. The groundwater W drawn from the drawn water well 1 is led to the water injection well 2 via closed water pipes.SELECTED DRAWING: Figure 1

Inventors:
ISHIKAWA AKIRA
SERIZAWA SADAMI
TAZAKI MASAHARU
Application Number:
JP2016075419A
Publication Date:
October 12, 2017
Filing Date:
April 04, 2016
Export Citation:
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Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E02D3/10
Domestic Patent References:
JP3455860B22003-10-14
JP2002256538A2002-09-11
JPS50146502A1975-11-25
JPH08196821A1996-08-06
JP2002200485A2002-07-16
JP4379086B22009-12-09
JP2003305485A2003-10-28
JP2008296188A2008-12-11
JPS61149292A1986-07-07
JP2014155926A2014-08-28
Foreign References:
US4199272A1980-04-22
US7563377B12009-07-21
WO2012144384A12012-10-26
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi



 
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