Title:
【発明の名称】地下汚染調節バリヤー
Document Type and Number:
Japanese Patent JP2752518
Kind Code:
B2
Abstract:
The underground pollution control barrier, e.g. for buried toxic waste, consists of a wall (5) which is cast in situ in the ground and equipped with impermeable membranes (6) in sections linked by vertical cavities (7). The cavities are filled with a material (8) which is pref. granulated in form and has properties which enable it to retain pollutants. The granulated material is easily replaced when the retention capacity drops. The impermeable membranes (6) are made from a synthetic material such as high density polyethylene, while the pollutant retaining granules (8) contain active C, sodium carbonate or pyrophosphate, or potassium tartrate. The wall (5) is made from a mortar based on a hydraulic binder with a low level of permeability, e.g. below power 10(-8) m/s. It can also contain a material designed to trap pollutants.
Inventors:
BUUSHERAJAN ABUDERUKURIMU
Application Number:
JP50415693A
Publication Date:
May 18, 1998
Filing Date:
August 21, 1992
Export Citation:
Assignee:
SORU CO
International Classes:
B09B1/00; E02D19/18; (IPC1-7): B09B1/00; E02D19/18
Domestic Patent References:
| JP611722A |
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)