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:
- University of California
- 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
- Country of Publication:
- United States
- Language:
- English
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