The boundary between liquid water and atmospheric air, where evaporation, gas exchange, heat loss, and odor release occur. Floating covers remove this interface.
The water-air interface is the boundary between liquid water and atmospheric air at the surface of a water body. Most of the operational pressures on industrial water — evaporation, gas exchange (H₂S, VOC, methane), heat loss, and surface algae growth — occur at this interface. Floating covers work by physically removing the water-air interface, eliminating the mass and heat transfer that drives the operational pressures.
The AWTT-patented Hexprotect® AQUA hexagonal cover removes the water-air interface across 99% effective surface coverage (per AWTT) without anchors — see /heritage for the patent and engineering history.