Record Display for the EPA National Library Catalog


Main Title Prototype System for Plugging Leaks in Ruptured Containers.
Author Vrolyk, J. J. ; Mitchell, R. C. ; Melvold., R. W. ;
CORP Author Rockwell International Corp., Canoga Park, Calif. Rocketdyne Div.;Industrial Environmental Research Lab.-Cincinnati, Ohio.
Year Published 1976
Report Number R-9659; EPA-68-03-0234; EPA/600/2-76/300;
Stock Number PB-267 245
Additional Subjects Hazardous materials ; Containers ; Leakage ; Plugging ; Sealers ; Foaming agents ; Polyurethane resins ; Portable equipment ; Water pollution ;
Library Call Number Additional Info Location Last
NTIS  PB-267 245 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 110p
A development program was performed successfully to develop and test a prototype system for temporarily stopping the flow of hazardous materials spilling on land or underwater from ruptured or damaged containers. The prototype system is portable, integrated, and field-operable by one man. It uses foamed-in-place polyurethane rigid foam plugs surrounded by a flexible protective membrane for sealing leaks. An applicator tip attached to a long handle is placed into the leak. The foam delivery system then is actuated and the foam chemicals, which are stored in a backpack, are automatically mixed and forced through a delivery tube and into the applicator tip expanding it both inside and outside the tank. The foam hardens in a few minutes and locks the plug in place. The applicator is then detached from the delivery system, which then can be refilled with foam chemicals and reused with a new applicator. The prototype leak-plugging system from this project has been developed to the point that it is now realistic to project practical field use of such a system. A preliminary implementation plan, including recommendations for additional work needed, is outlined.