Product/Service

Versa™ Inclined Rotary Screen

Source: Bilfinger Water Technologies

The Versa™ inclined rotary screen is designed to fit into an influent channel at a wastewater treatment plant and convey screened solids out for dewatering and disposal.

APPLICATIONS

MUNICIPAL AND INDUSTRIAL WASTEWATER TREATMENT

  • The Versa is designed for higher flow rates above rotary drum screens and vertical screens. Furthermore, higher separation efficiencies can be achieved at peak flows with a lower head loss
  • The Versa design ensures that the separated solids are captured and do not bypass the screen even at peak flow

MEMBRANE BIO REACTOR (MBR) PRETREATMENT

  • Versa’s perforated plate screens with 0.04 or 0.08 in. (1 or 2 mm) openings are capable of providing pretreatment requirements for MBR plants using hollow fiber or flat sheet membranes
  • Versa’s Vee-Wire profile screens, 0.02 or 0.04 in. (0.5 or 1 mm), provide enhanced fiber or hair removal upstream of membrane processes. High solids removal and screenings capture, within the enclosed drum, ensures solids are retained and cannot pass through or be returned to screened effluent

STORM OVERFLOW TREATMENT

  • The Versa can be applied as combined storm overflow (CSO) screens using a 0.24 in. (6 mm) perforated plate
  • To suit various requirements, drum screens can be supplied with or without washing and compaction zones. This allows for additional options for:
    • Screenings removal and compaction at the CSO station
    • Screenings removal and compaction at the
    • CSO station with return of washed fecal and other semi solid matter to the downstream sewer
    • Return of all screenings, fecal and other semi-solid matter to the downstream sewer

Applications include combined sewer systems, in addition to municipal and industrial wastewater treatment works - either CSO duty only, or as a single integrated preliminary treatment screen for all effluent entering the works

Improved storm overflow solids removal efficiencies can be gained with simultaneous reductions in BOD and COD by utilizing a 0.02 or 0.04 in. (0.5 or 1 mm) Vee-Wire screen drum

HIGH SOLIDS SEPARATION

  • Vee-Wire screens ensure high separation efficiencies at high flows while perforated hole screens obtain increased filtration efficiencies

ENCLOSED DRUM SCREEN

  • Ensures separated solids are retained and cannot pass through, bypass or overflow the screen

LOW HEAD LOSS

  • An inclination angle of 35 degrees and large surface profile imparts increased immersed screening area and exposure to the incoming flow

LOW FOOTPRINT

  • Compact, space-saving design, including screenings removal, washing and compaction