Surface flow CW (SFCW) and subsurface-flow CW (SSFCW) are the two most common CW settings. However, many studies have reported a much better removal efficiency of SSFCW than of SFCW
Surface flow CW (SFCW) and subsurface-flow CW (SSFCW) are the two most common CW settings. However, many studies have reported a much better removal efficiency of SSFCW than of SFCW