2 bar screens on a WWTP in Bas-Rhin, France

Nov 13, 2017

At a wastewater treatment plant in the Bas-Rhin department, we installed two automatic vertical bar screens: one on the lift station and one on the storm overflow weir.

The existing context :

  • A manual basket on the station,
  • In the event of heavy effluent inflows (rainwater) and saturation of the station, waste is bypassed directly into the river.

The customer's request:

  • Replace manual basket with automatic bar screen
  • Create a manhole between the PR and the river, and install an automatic bar screen to recover as much waste as possible before discharge into the natural environment.

 

Summary features of this project

 

1 NG21 bar screen on the PR

  • All 304L stainless steel
  • 15mm air gap
  • Flow rate: 1600m3/h
  • Screen width 880mm
  • Depth below surface 3000mm
  • No changes to civil engineering
  • 1 FB Procédés electrical box
in-position degreaser

Front - Hand basket on PR

 

 

 

 

 

 

 

 

 

 

in-position degreaser

Front - View of the PR

 

 

 

 

 

 

 

 

 

 

in-position degreaser

After - Screen installed on the PR

 

 

 

 

 

 

 

 

 

 

 

1 XG12 bar screen on the DO

  • All 304L stainless steel
  • 20mm air gap
  • Flow rate: 5400m3/h
  • Screen width 2000mm
  • Depth under countertop 2100mm
  • 1 FB Procédés electrical box
  • 1 set of 2 US upstream/downstream probes with converter
channel strainer

Screen on DO (view from downstream)

 

 

 

 

 

 

 

 

 

 

channel strainer

Screen on DO (View from upstream)