skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method for formation of subsurface barriers using viscous colloids

Patent ·
OSTI ID:675782

A method is described for formation of subsurface barriers using viscous liquids where a viscous liquid solidifies at a controlled rate after injection into soil and forms impermeable isolation of the material enclosed within the subsurface barriers. The viscous liquid is selected from the group consisting of polybutenes, polysiloxanes, colloidal silica and modified colloidal silica of which solidification is controlled by gelling, cooling or cross-linking. Solidification timing is controlled by dilution, addition of brines, coating with alumina, stabilization with various agents and by temperature. 17 figs.

Research Organization:
Univ. of California (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
US 5,836,390/A/
Application Number:
PAN: 8-745,089
OSTI ID:
675782
Resource Relation:
Other Information: PBD: 17 Nov 1998
Country of Publication:
United States
Language:
English