Title:
帯水層の浄化方法
Document Type and Number:
Japanese Patent JP6639947
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique capable of purifying an aquifer contaminated with harmful substances even in the case where injection of fluid for purification is difficult.SOLUTION: A purifying method of a low water permeable aquifer contaminated with harmful substances comprises: a process 1 of connecting a vacuum pump to a well which is installed in a low water permeable aquifer contaminated with harmful substances in an airtight state, pumping up groundwater which exists in the aquifer to reduce a water level of the groundwater, forming an unsaturated layer in the aquifer, and allowing air to contact soil which exists in the unsaturated layer; and a process 2 of feeding oxygen, nutrient or water to the unsaturated layer after the process 1.SELECTED DRAWING: None
Inventors:
Eiichiro Imanasu
Kazuhisa Fukunaga
Kazuhisa Fukunaga
Application Number:
JP2016032810A
Publication Date:
February 05, 2020
Filing Date:
February 24, 2016
Export Citation:
Assignee:
Nippon Steel Engineering Co., Ltd.
International Classes:
B09C1/10; E02D3/10
Domestic Patent References:
| JP2002143828A | ||||
| JP2014023992A | ||||
| JP2005279415A | ||||
| JP2011167596A | ||||
| JP9276837A |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Hiroshi Yamaguchi
Mitsuo Teramoto
Hiroshi Yamaguchi