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Title:
RECHARGE METHOD
Document Type and Number:
Japanese Patent JP2018197472
Kind Code:
A
Abstract:
To provide a recharge method that makes it possible to appropriately perform optimum setting of a specification and the like of a filter device.SOLUTION: A recharge method including removing an insoluble substance in object water W1 by filtering the object water W1 using a spring-type filter 11 having a surface on which precoat material is deposited and a precoat layer is formed and pouring object water W2 after processing of removing the insoluble substance has been performed, from a water pouring well 4 into the underground includes: performing recharging by repeating a cycle of filtering processing and back washing of the water pouring well 4 and previously generating relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water; and on the basis of the relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water, setting a cycle time and a processing flow rate for the object water W1.SELECTED DRAWING: Figure 1

Inventors:
ISHIKAWA AKIRA
SERIZAWA SADAMI
TAZAKI MASAHARU
HAYASHI HIDEHIKO
NIGIRIKAWA NAOHIRO
Application Number:
JP2017103016A
Publication Date:
December 13, 2018
Filing Date:
May 24, 2017
Export Citation:
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Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E02D3/10; B01D29/48; B01D29/66; B01D37/02; E02D19/10
Domestic Patent References:
JP2002119977A2002-04-23
JP2012110815A2012-06-14
JPS51131963A1976-11-16
JP2015182069A2015-10-22
Foreign References:
CN105625295A2016-06-01
EP1447120A12004-08-18
Attorney, Agent or Firm:
Yasushi Matsunuma
Kenichi Kawabuchi
Nishizawa Kazumi
Masatake Shiga
Tadashi Takahashi
Yoshifumi Saeki



 
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