Wastewater treatment is a primary task. This creates sewage sludge. With the use of Polyelectrolite (PE), the sewage sludge must be processed reliably and undisturbed in a Silbontwatering plant (SOI) or a Sludge Thickening Plant (SII) within the stipulated time, without jeopardizing the continuity of the treatment process.

The tender concerns the supply of PE for the following locations:

• WWTP Alphen Church & Zanen

• WWTP Alphen North

• WWTP Bodegraven

• WWTP Gouda

• WWTP Nieuwveen

• WWTP Noordwijk

• WWDINXVEEN-Randenburg

In Annex 5 you will find a detailed overview of the locations including estimated consumption of active PE per year.