Mass Aritma - Model MAN 4020 - Revolving Bridge Scrapers
Suspended solids in the influent, settle down to the bottom of the settling tank and continuously revolving peripheral drive scraper bridges move the settled sludge to the central sludge hopper.
Revolving bridge scrapers shapes are designed as cage, low profile with handrail or high profile. Their lenghts are calculated based on tank diameter and they can be half bridge, extended bridge and full bridge type. Optionally, a surface skimming unit can be installed on the bridge, which moves the surface scum into a scum collecting box or trough.