Which type of screens has a high capture rate of 6 ft3/million gal?

The type of screens that achieve a high capture rate of 6 ft³/million gallons is bar screens. Bar screens are designed with parallel bars that allow for the passage of liquid while effectively capturing larger debris and solids in wastewater systems. Their configuration aids significantly in the removal of larger particles, which not only helps in maintaining the efficiency of treatment systems but also protects downstream equipment from clogging and damage.

These screens are particularly effective in municipal and industrial wastewater treatment facilities where the removal of solids is crucial before further treatment processes. Their ability to capture a substantial volume of solids relative to the flow rate makes them an essential component of the initial treatment stages in wastewater management.

In contrast, fine screens are typically used to capture smaller particles but have lower capture rates compared to bar screens. Coarse screens and bar racks, while also effective in removing larger debris, do not typically achieve the same high capture rates as bar screens due to their design and intended use cases.