Source: https://tendernation.io/opportunities/01a1409f-e4aa-7004-ab66-968a2ac907c9/finland-distilling-filtering-or-rectifying-apparatus-ultrafiltration-for-wa

closed FI

# Distilling, filtering or rectifying apparatus – Ultrafiltration for water treatment plant, TP 104-25

[HSY Helsingin seudun ympäristöpalvelut -kuntayhtymä](https://tendernation.io/buyers/hsy-helsingin-seudun-ymparistopalvelut-kuntayhtyma)

Estimated value

Not stated

Published

22 Dec 2025

Deadline

Closed

5 Jan 2026

## About this tender

For research and treatment process development purposes Helsinki Region Environmental Services (later also "client" or "HSY") is in the process of acquiring an ultrafiltration (UF) unit to be retrofitted in an existing sand filter for Pitkäkoski water treatment plant (WTP). Long-term goal for the ultrafiltration pilot is to evaluate ultrafiltration paired with chemical precipitation as a primary natural organic matter (NOM) removal method when purifying cold surface water. Membrane performance and water quality is compared to that of a clarification and sand filtration. Purchased UF process will be preceded by a separate chemical dozing and flocculation unit to ensure effective NOM removal and membrane applicability in variable conditions. Different precipitation chemicals will be used, but the choice of chemicals and applied dose can be discussed with membrane supplier. In principle, the UF unit would be built in one of the existing sand filter pairs: one of the filters will be used for chemical dozing and flocculation, while the other one is reserved for UF units. The main targets in piloting are: - Adequate NOM removal - Act as an effective microbial barrier - Stable turbidity level in permeate from membrane filtration HSY have completed several laboratory scale tests for different UF processes, and the Client has decided to perform a full scale UF pilot based on ceramic submerged membrane filtration. Produced permeate from the ceramic UF unit will be further processed in Pitkäkoski WTP prior to distribution to customers. Pilot process lifetime is expected to be at least 50 years and membranes are assumed to be replaced during the piloting. The ceramic UF treatment could potentially be used in the future to further increase the capacity of Pitkäkoski WTP or as the primary treatment step in a new WTP in the Helsinki Metropolitan area. As the purchased membrane unit will replace part of the existing treatment process and membrane permeate is directed to further treatment, client will oblige actions from process supplier in case warranty clauses are not met.

Read full description

## CPV classification

Distilling, filtering or rectifying apparatus

Source

Tenders Electronic Daily (EU) · Notice 850492-2025

[View official notice](https://ted.europa.eu/en/notice/850492-2025)

Never miss a tender like this again

Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start.

[Track tenders free](https://tendernation.io/register)

[Buyer profile HSY Helsingin seudun ympäristöpalvelut -kuntayhtymä: past awards and live tenders](https://tendernation.io/buyers/hsy-helsingin-seudun-ymparistopalvelut-kuntayhtyma) [Sector More Industrial machinery tenders](https://tendernation.io/sectors/industrial-machinery)

## More tenders like this

[Taps, cocks and valves – Armaturen für den Erdeinbau · Hamburger Energiewerke GmbH · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-5420-7127-9c40-a62d1d50b931/germany-taps-cocks-and-valves-armaturen-fur-den-erdeinbau) [Miscellaneous cleaning machines – Siivouskoneet ja tekstiilienkäsittelylaitteet · Numera Palvelut Oy · 23 days left · 11 Nov 2026](https://tendernation.io/opportunities/01a15183-3f6e-73fc-af88-53a623859b34/finland-miscellaneous-cleaning-machines-siivouskoneet-ja-tekstiilienkasittel) [Milling machines – 5-Achs-Fräsmaschine · Technische Universität Hamburg · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-415a-727e-8083-eeb94ff038d7/germany-milling-machines-5-achs-frasmaschine) [Boiler installations – Neubeschaffung von zwei baugleichen Heißwassererzeuger für den Standort Köpenick · BEW Berliner Energie und Wärme GmbH · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-15f0-7290-b267-ee377bf4c98e/germany-boiler-installations-neubeschaffung-von-zwei-baugleichen-heisswassere) [Drinks dispensers – Warme drankenautomaten · Gemeente Almelo · 43 days left · 1 Dec 2026](https://tendernation.io/opportunities/01a15183-1fb0-73b3-9de4-809143065220/netherlands-drinks-dispensers-warme-drankenautomaten) [Miscellaneous special-purpose machinery – Výstavba lanovej dráhy na Martinské hole · Mesto Martin · 57 days left · 15 Dec 2026](https://tendernation.io/opportunities/01a15183-5ccc-70db-b65f-69eb1062d8b3/slovakia-miscellaneous-special-purpose-machinery-vystavba-lanovej-drahy-na-m)