Delivery of polymeric flocculants (pFM) to the Werdhölzli sewage treatment plant as well as application and consumption optimisation advice for the dewatering of around 11,000 tonnes of dry residue "digested sludge" per year and for the thickening of around 20,000 tonnes of dry residue "fresh sludge" annually in the period from 1 March 2023 to 29 February 2028.

The quantities quoted are based on estimates and forecasts and cannot be guaranteed by ERZ.

The present invitation to tender serves as a basis for the conclusion of framework supply contracts with several providers. Within the framework of the invitation to tender, after evaluation of the award criteria, the five best-placed bidders who meet the eligibility criteria and meet the requirements of the service trip to be carried out are awarded the contract to conclude a framework contract (see PART B, draft framework agreement).

Delivery of polymeric flocculants (pFM) to the Werdhölzli sewage treatment plant as well as application and consumption optimisation advice for the dewatering of around 11,000 tonnes of dry residue "digested sludge" per year and for the thickening of around 20,000 tonnes of dry residue "fresh sludge" annually in the period from 1 March 2023 to 29 February 2028.

The quantities quoted are based on estimates and forecasts and cannot be guaranteed by ERZ.

The present invitation to tender serves as a basis for the conclusion of framework supply contracts with several providers. Within the framework of the invitation to tender, after evaluation of the award criteria, the five best-placed bidders who meet the eligibility criteria and meet the requirements of the service trip to be carried out are awarded the contract to conclude a framework contract (see PART B, draft framework agreement).