Source: https://tendernation.io/opportunities/01a13bc7-cdee-711c-99fe-44f48ed682c5/supply-of-integral-primary-secondary-treatment-systems pending GB open procedure # Supply of Integral Primary & Secondary Treatment System(s) [Severn Trent Water Limited](https://tendernation.io/buyers/severn-trent-water-limited) Estimated value Not stated Published 17 Nov 2025 Deadline Rolling deadline ## Who can bid - Sets up a framework Winning a place does not guarantee work: contracts are awarded later as call-offs, and the list usually stays closed for years. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender Supply (including design, assembly, supply, delivery and co-commissioning) of an integral modular primary and secondary treatment system(s) to be implemented as sidestream solutions at multiple sewage treatment works (STWs) across AMP8. Severn Trent Water requires integral solutions - primary settlement, biozone/ biological treatment and humus/ final settlement - all to be contained within a singular modular 'roll on roll off' unit - with lifting points for cranage where required. Potential for a limited number of alternative configuration units may be required depending on site requirements - e.g.) biozone only, biozone + humus settlement zone, primary settlement + biozone. The units required are to be deployed at small to medium size treatment works. With the aim being to install an independent side stream to increase the treatment capacity. Allowing for an increase of Flow to Full Treatment (FFT). The flow will be proportionally distributed between the existing assets and modular sidestreams based upon the maximum treatment flow. - Solution can be either SAF or MBBR - Automated sludge removal is to be provided from the humus and primary zones. - Adjusted aeration is to be provided to the biological treatment zone, to allow for optimisation and scouring (as required). - Lamella units are not a preferred settlement process (for primary or humus), due to previous operational issues requiring excessive operational intervention. Read full description ## CPV classification Sewerage works equipment Machinery for the treatment of sewage Storage tanks Source Find a Tender (UK) · Notice ocds-h6vhtk-05e2cb-2025-11-17T16:43:23Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05e2cb-2025-11-17T16:43:23Z) 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 Severn Trent Water Limited: past awards and live tenders](https://tendernation.io/buyers/severn-trent-water-limited) [Sector More Furniture, furnishings & cleaning products tenders](https://tendernation.io/sectors/furniture-furnishings) ## More tenders like this [Hendon Library: School Libraries and Resources Service (SLRS) refit 2026/27 · London Borough of Barnet · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a154e4-41d4-73a3-9712-1003545b8a8c/hendon-library-school-libraries-and-resources-service-slrs-refit-202627) [3D, 2D and Lighting Exhibition Design Services for: The Ocean (working title) Temporary Exhibition at Science Museum 2028 & Science and Industry Museum 2029 · Science Museum Group · 27 days left · 15 Nov 2026](https://tendernation.io/opportunities/01a15476-637e-71ad-9786-0a37575262f2/3d-2d-and-lighting-exhibition-design-services-for-the-ocean-working-title-te) [Furniture – Acquisition d’équipements mobiliers et matériels destinés au Lycée des Métiers de la Mer à La Réunion (974) · Région Réunion · 11 days left · 30 Oct 2026](https://tendernation.io/opportunities/01a15183-1358-72da-a60c-19d077e522b3/france-furniture-acquisition-dequipements-mobiliers-et-materiels-destines-a) [Furnishing – Jõhvi Kutsehariduskeskuse (Kutse tn 13, Jõhvi) sisustamine · Riigi Kinnisvara Aktsiaselts · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-144b-72cc-a6d4-5954d41791b9/estonia-furnishing-johvi-kutsehariduskeskuse-kutse-tn-13-johvi-sisustamin) [Theatre seats – Renouvellement de la tribune téléscopique du centre culture de l'Orangerie · Mairie de Roissy-en-France · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a15183-07c7-7113-8193-81d8622e137a/france-theatre-seats-renouvellement-de-la-tribune-telescopique-du-centre-cul) [Library furniture – namještaj I oprema ZA knjižnice osnovnih škola · Grad Zagreb · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-0a9a-739d-b9d2-08b5910ccdbc/croatia-library-furniture-namjestaj-i-oprema-za-knjiznice-osnovnih-skola)