Most designs typically employ backwashing once per day of operation . The operation of depth filters is inherently cyclic due to the necessity of solids removal build up during the process, as such two or more units are typically used so that backwashing does not interfere with the filtration.
32.
Most designs typically employ backwashing once per day of operation . The operation of depth filters is inherently cyclic due to the necessity of solids removal build up during the process, as such two or more units are typically used so that backwashing does not interfere with the filtration.
33.
Backwash breaking parallel to or obliquely to the angle of the shore is sometimes also called sidewash, which can form from the reflection of a wave breaking against adjacent obstructions such as jetties, groynes, or rockwalls, or simply from the action of backwashing waves which strike a shoreline at an angle.
