GROUND INJECTION AGENT CONCENTRATION ESTIMATION METHOD

• US 20190324008A1
• Filed: 08/29/2017
• Published: 10/24/2019
• Est. Priority Date: 11/14/2016
• Status: Active Grant

• Current Assignee: Takenaka Corporation
• Original Assignee: Takenaka Corporation
• Inventors: KIYOTOMO, Haruka, SHIMIZU, Takaaki, NAKASHIMA, Tomohiro, SHIMIZU, Yamato, OKUDA, Nobuyasu, FURUKAWA, Yasuhide, YAMAZAKI, Yuji, MUKAI, Kazuhiro, INABA, Kaoru
• Granted Patent: US 11,231,406 B2
• Time in Patent Office: Days
• CPC Class Codes: B09C 1/002 involving in-situ ground water treatment
• CPC Class Codes: B09C 1/02 Extraction using liquids, e.g. washing, leaching , flotation
• CPC Class Codes: B09C 1/08 chemically
• CPC Class Codes: B09C 1/10 microbiologically, biologically or by using enzymes
• CPC Class Codes: B09C 2101/00 In situ
• CPC Class Codes: G01N 21/64 Fluorescence; Phosphorescence
• CPC Class Codes: G01N 33/24 Earth materials G01N33/42 takes precedence

Abstract

A ground injection agent concentration estimation method including a injecting an injection liquid to which an injection agent and a marker exhibiting similar behavior in subsurface ground to that of the injection agent have been added, into the subsurface ground through a water injection well; measuring a concentration of the marker at a location spaced apart from the water injection well, and estimating a concentration of the injection agent in the groundwater from the concentration of the marker.

Claims

1-5. -5. (canceled)

6. A ground injection agent concentration estimation method comprising:

injecting an injection liquid comprising one or more injection agent and one or more marker into the ground through a water injection well, wherein the one or more injection agent and one or more marker are both characterized by exhibiting a similar behavior in ground;

measuring a concentration of the one or more markers in groundwater at a location spaced apart from the water injection well; and

estimating a concentration of the one or more injection agent in the groundwater from the concentration of the marker.

7. The ground injection agent concentration estimation method of claim 6, wherein the one or more injection agent is selected from the group consisting of a purification agent to decompose a contaminant and an activator to activate bio-decomposition by the purification agent.

8. The ground injection agent concentration estimation method of claim 7, wherein the one or more marker comprises one or more fluorescent dye.

9. The ground injection agent concentration estimation method of claim 8, wherein the one or more fluorescent dye is selected from the group consisting of uranine, eosin, rhodamine B, rhodamine WT, pyranine, amino G acid, sodium naphthionate, and sulforhodamine G.

10. The ground injection agent concentration estimation method of claim 7, wherein:

the purification agent and the activator are injected into the ground through the water injection well; and

the one or more marker comprises a first marker characterized by exhibiting similar behavior to the purification agent in ground, and a second marker characterized by exhibiting similar behavior to the activator.

11. The ground injection agent concentration estimation method of claim 6, wherein the one or more injection agent and one or more marker are both characterized by exhibiting a similar behavior in ground further comprises moving inside the ground at similar speeds.

12. A ground injection agent concentration estimation method comprising:

warming an injection liquid comprising one or more injection agent; and

injecting the injection liquid into ground through a water injection well;

measuring an in-ground temperature at a location spaced apart from the water injection well; and

estimating a concentration of the injection agent in the groundwater from the in-ground temperature.

13. The ground injection agent concentration estimation method of claim 12, wherein the one or more injection agent is selected from the group consisting of a purification agent to decompose a contaminant and an activator to activate bio-decomposition by the purification agent.

14. A ground injection agent concentration estimation method comprising:

injecting an injection liquid comprising one or more injection agent and one or more marker into the ground through a water injection well;

measuring a concentration of the one or more markers in groundwater at a location spaced apart from the water injection well; and

estimating a concentration of the one or more injection agent in the groundwater from the concentration of the marker,

wherein the one or more injection agent and one or more marker both comprise a property that are about the same, and

wherein property comprises at least one of viscosity, adsorption characteristics, desorption characteristics.

15. The ground injection agent concentration estimation method of claim 14, wherein the one or more injection agent is selected from the group consisting of a purification agent to decompose a contaminant and an activator to activate bio-decomposition by the purification agent.

16. The ground injection agent concentration estimation method of claim 15, wherein the one or more marker comprises one or more fluorescent dye.

17. The ground injection agent concentration estimation method of claim 16, wherein the one or more fluorescent dye is selected from the group consisting of uranine, eosin, rhodamine B, rhodamine WT, pyranine, amino G acid, sodium naphthionate, and sulforhodamine G.

18. The ground injection agent concentration estimation method of claim 14, wherein the one or more injection agent and one or more marker are both characterized by exhibiting a similar behavior in ground by moving inside the ground at similar speeds.

19. The ground injection agent concentration estimation method of claim 18, wherein:

the purification agent and the activator are injected into the ground through the water injection well; and

the one or more marker comprises a first marker characterized by exhibiting similar behavior to the purification agent in ground, and a second marker characterized by exhibiting similar behavior to the activator.