Back to results
US 6,056,997 AGranted
Corrosion protection in concrete sanitary sewers
AssigneePSC Technologies, Inc.
InventorThomas Michael Miller
Life of this patent
Estimating the term…
Abstract
A method for protecting concrete surfaces of sanitary sewers includes the steps of providing a concrete surface in a sanitary sewer environment; and coating the concrete surface with magnesium hydroxide or magnesium oxide.
Claims13
A method for killing or disabling acid producing bacteria in a sanitary sewer, comprising the steps of:
- providing a surface forming part of a sanitary sewer;
- and
- forming a layer made substantially of magnesium hydroxide on the surface.
A method for killing or disabling acid producing bacteria in a sanitary sewer, comprising the steps of:
- providing a surface forming part of a sanitary sewer;
- and
- forming a layer made substantially of magnesium oxide on the surface.
A method for killing or disabling acid producing bacteria in a sanitary sewer comprising the steps of:
- providing a surface in a sanitary sewer environment;
- and
- coating the surface with a magnesium oxide slurry, and the slurry includes sodium silicate so that when dry, the slurry yields a hard alkaline material composite of unhydrated magnesium oxide encapsulated in sodium silicate.
Dependencies are inferred from the claim text.