Incoming sewage is led to the unit through an inlet connection. The drum retains all the particles larger than the diameter of the perforations. The solids inside the drum are conveyed to the outlet and fall into the collection vessel. The screened sewage is returned through a discharge outlet to re-enter the process. The cleaning jets and brush inside the drum clean the sieve perforations.
The drum sieve construction is closed, thus making placement easy and preventing foul odors and spills.
The drum sieve can remove long fibers and grease as well as a reasonable amount of grit.
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