Title:
汚染土壌と地下水の浄化方法
Document Type and Number:
Japanese Patent JP6825179
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for clarifying contaminated soil and groundwater, which solves the conventional problem, in which the process can be adopted even in places where pumping is difficult and, on top of that, does not require the addition of catalyst.SOLUTION: "Process for clarifying contaminated soil and groundwater" of the present invention is a clarification process for clarifying a soil and groundwater contaminated with 1,4-dioxane, and is a process comprising a soil warming step and an injection step. In the soil warming step, by applying voltage to three or more electrode wells built in the soil and passing an electric current through the soil, the soil and groundwater is warmed. In addition, in the injection step, persulfate dissolved in room temperature water is injected into the soil or groundwater in a warmed state and, by this persulfate salt being warmed, sulfate radicals are generated, and, by this sulfate radicals, 1,4-dioxane is decomposed.SELECTED DRAWING: Figure 2
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Inventors:
Tetsuro Sato
Kota Seno
Kota Seno
Application Number:
JP2016167539A
Publication Date:
February 03, 2021
Filing Date:
August 30, 2016
Export Citation:
Assignee:
Kokusai Kogyo Co., Ltd.
International Classes:
B09C1/08; B09C1/06
Domestic Patent References:
| JP2008506511A | ||||
| JP2002001299A | ||||
| JP2000084535A | ||||
| JP2014231050A | ||||
| JP2015514570A | ||||
| JP2002513676A |
Foreign References:
| KR100850165B1 |
Attorney, Agent or Firm:
Teppei Kai