Water & Wastewater
SCS has worked on potable water projects where the application requires an ANSI/ NSF 61 approval. The applications require the coating to bridge cracks, adhere to various substrates, withstand movement when the tank is filled, endure thermal shock, cure quickly, and last a long time.
Our applications have included:
- Potable Water Storage Tanks/Reservoirs
- Primary/Secondary Chemical Containment
- Chlorine Contact Chambers
- Flocculation Basins
- Filter Beds
For wastewater (WWTP) applications, the effect of biogenic sulfide corrosion and the formation of a sulfuric acid solution on concrete surfaces exposed to the sewer environment are devastating. Concrete is made of sand, rock, and cement. The cement, a mixture of minerals and water locking the sand and rock into place, is most vulnerable to the effects of hydrogen sulfide and acid attack. The rate of concrete corrosion depends on the permeability of concrete and the amount of gaseous hydrogen sulfide that is adsorbed to the moist walls within WWT plants. Signs of prolonged exposure to mild acid attack include rust bleeding, cracking, and spalling of the concrete. SCS has worked very successfully in the concrete rehabilitation and coatings that are resistant long term to H2S, sulfuric acid, and UV exposure in numerous WWTP facilities in the U.S.
Our applications are:
- Aeration Basins
- Lift Stations
- Oxidation Systems