Realization of modifications RWZI Arnhem-Zuid
Waterschap Rivierenland aims to future-proof the RWZI Arnhem-Zuid until 2035 through a series of modifications. The assignment comprises three work packages: (1) optimization of sludge thickening and dewatering, including heat exchange and adjustment of the (digested) sludge buffers; (2) realization of a new influent reception plant 2 and adjustment of the existing plant 1; (4) construction of a new green gas line. Delivery must be by 1 February 2026. The tender is open and aimed at a single bidder capable of performing all works. The contracting authority requires a structured approach, compliance with laws and regulations, and a design capable of handling the biological load until 2035. The assignment calls for an integrated solution that improves operational performance and ensures the availability of the plant.
Works · Open · European procedure
01What is being requested
Waterschap Rivierenland aims to future-proof the RWZI Arnhem-Zuid until 2035 through a series of modifications. The assignment comprises three work packages: (1) optimization of sludge thickening and dewatering, including heat exchange and adjustment of the (digested) sludge buffers; (2) realization of a new influent reception plant 2 and adjustment of the existing plant 1; (4) construction of a new green gas line. Delivery must be by 1 February 2026. The tender is open and aimed at a single bidder capable of performing all works. The contracting authority requires a structured approach, compliance with laws and regulations, and a design capable of handling the biological load until 2035. The assignment calls for an integrated solution that improves operational performance and ensures the availability of the plant.
The operational management of the RWZI Arnhem has been facing a large number of bottlenecks for several years. The performance and availability of the plant are falling below standards, and permanent compliance with laws and regulations is, under current circumstances, not possible.n/nBased on analyses, it has been determined that in 2035, the biological load will have increased by approximately 25% compared to the current design.n/nThe goal of the project ‘realization of modifications RWZI Arnhem’ is to future-proof the RWZI in a structured manner, so that it functions well again until at lea
02Exclusion grounds
- No specific exclusion grounds were extracted. In a European tender, the mandatory and discretionary grounds of art. 2.86/2.87 of the Dutch Procurement Act almost always apply — check the European Single Procurement Document (ESPD).
03Value in context
04Likely competitors
05Legal themes that may be relevant here
06Frequently asked questions
Which work packages does the assignment consist of?
What is the intended delivery date of the works?
Which aspects of the plant are focused on during the modifications?
Automatically compiled from the official tender data and documents.
07Estimated value versus the market
€ 1,4 mln
€ 3,6 mln
€ 9,1 mln
Gegunde waarden in CPV 45 · werken n=3159