Source: https://tendernation.io/opportunities/01a13bc3-b01a-7366-9a6e-d63746c24c3e/water-disinfection pending GB open procedure Suitable for SMEs # Water Disinfection [United Utilities Water Limited](https://tendernation.io/buyers/united-utilities-water-limited) Estimated value Not stated Published 18 Sept 2025 Deadline Rolling deadline ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender We are inviting suppliers to share information on alternative wastewater disinfection technologies. This notice is for market engagement only. It will not necessarily lead to procurement. Across the UK there are more than 600 designated bathing waters, and several shellfish protected areas. These require effective wastewater disinfection to protect both the environment and public health. At present, only ultraviolet treatment and membrane filtration are formally recognised. While proven, both approaches bring challenges: high energy use, high costs, and limited suitability for smaller or rural treatment works. We want to understand what other solutions exist in the market, both in the UK and internationally. This will help us build a clearer picture of what options could be available, what evidence already exists, and where there may be opportunities for collaboration. The insight we gather may also support future funding bids and trial projects. Alongside this notice we will be linking with industry experts and national research projects to make sure there is no duplication and to draw on existing knowledge. ## CPV classification Sewage treatment services Water-treatment chemicals Disinfection equipment Machinery and apparatus for filtering or purifying water Water filtration apparatus Water-purifying apparatus Cleaning and sanitation services Source Find a Tender (UK) · Notice ocds-h6vhtk-059d78-2025-09-18T16:00:28+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-059d78-2025-09-18T16:00:28+01:00) 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 United Utilities Water Limited: past awards and live tenders](https://tendernation.io/buyers/united-utilities-water-limited) [Sector More Sewage, refuse, cleaning & environmental tenders](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental) ## More tenders like this [Invitation to Tender Window Cleaning Services - Wirral · Wirral Community Health and Care NHS Foundation Trust · 33 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a1539a-cf1d-702b-9ffd-93cfa91d3c7c/invitation-to-tender-window-cleaning-services-wirral) [Cleaning services – Úklidové služby pro budovy JP · České vysoké učení technické v Praze · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-4b75-72e0-8073-c7b65b5d95d9/czechia-cleaning-services-uklidove-sluzby-pro-budovy-jp) [Refuse and waste related services – Keräyspaperin, tietoturvamateriaalin sekä SER-jätteen poistopalvelun hankinta · Espoon kaupunki · 11 days left · 29 Oct 2026](https://tendernation.io/opportunities/01a15183-11dc-7260-9add-88811d0139f2/finland-refuse-and-waste-related-services-kerayspaperin-tietoturvamateriaal) [Radioactive-, toxic-, medical- and hazardous waste services – Vaarajätepalvelu · Helsingin yliopiston kiinteistöpalvelut Oy · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-2d87-7301-b79a-03b45cbf514a/finland-radioactive-toxic-medical-and-hazardous-waste-services-vaarajat) [Refuse transport services – Odbiór odpadów komunalnych z terenu miasta Maków Mazowiecki · Miasto Maków Mazowiecki · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15183-3f12-7325-9c2f-18eb44993615/poland-refuse-transport-services-odbior-odpadow-komunalnych-z-terenu-miasta) [Waste-tip management services – Odbiór i zagospodarowanie niesegregowanych (zmieszanych) odpadów komunalnych wraz z selektywną ich zbiórką z terenu Gminy Łowicz w 2027 roku · Gmina Łowicz · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15183-4a21-72a8-8b90-2d7f33a3108f/poland-waste-tip-management-services-odbior-i-zagospodarowanie-niesegregowan)