--- title: "Supply of Integral Primary & Secondary Treatment System(s)" ocid: "ocds-h6vhtk-05e2cb" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e2cb" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e2cb.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e2cb.json" source: "Find A Tender Service" current_stage: "Planning" buyer: "SEVERN TRENT WATER LIMITED" published: "2025-11-17" --- # Supply of Integral Primary & Secondary Treatment System(s) Buyer: SEVERN TRENT WATER LIMITED Current stage: Planning OCID: ocds-h6vhtk-05e2cb [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e2cb) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-05e2cb.json) ## Summary Severn Trent Water Limited, a private utility based in Coventry, is in the planning stage of a tender process for the supply of integral primary and secondary treatment systems. The procurement is focused on goods within the sewerage works equipment and machinery for the treatment of sewage category, with an estimated value of £3,000,000. The project involves the design, assembly, and deployment of modular treatment systems across various sewage treatment works in the UK, set to commence from 28th February 2026 and conclude by 31st March 2030. Interested suppliers are invited to engage and help tailor the procurement strategy, with an engagement milestone scheduled for 5th December 2025. This tender presents substantial opportunities for businesses specializing in wastewater treatment solutions and equipment manufacturing. Suppliers experienced in modular 'roll on roll off' systems and biological treatment technologies like SAF or MBBR will find this project particularly suited to their expertise. The demand for innovative and customizable solutions for small to medium-sized treatment plants can aid businesses in expanding their market presence and fostering relationships with a significant utility player like Severn Trent Water Limited. The inclusion of a framework agreement also suggests potential for ongoing work and collaboration. ## Notice 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. ### Planning Information We are keen to engage with interested suppliers to help design and tailor a sourcing strategy and procurement process that meets our requirement but is also suitable to the widest group of suppliers. Any future Tender Notice will be published and response to this pre market engagement is optional and does not contribute to any procurement process. We invite suppliers to complete the following form and we will be in touch: https://forms.office.com/e/DXvN6PYLgL ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/074539-2025 | | Notice type | UK2 - Preliminary Market Engagement Notice | | Procurement type | Framework | | Procurement category | Goods | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Planning | ## Dates | Field | Value | | --- | --- | | Publication date | 17 Nov 2025 | | Submission deadline | Not specified | | Future notice date | 5 Dec 2025 | | Award date | Not specified | | Contract period | 28 Feb 2026 - 31 Mar 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £3,000,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Planning | | Lots status | Planning | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | SEVERN TRENT WATER LIMITED | | Locality | COVENTRY | | Post town | Coventry | | Postcode | CV1 2LZ | | Country | England | | ITL 1 | TLG West Midlands (England) | | ITL 2 | TLG3 West Midlands | | ITL 3 | TLG33 Coventry | | Local authority | Coventry | | Electoral ward | St Michael's | | Westminster constituency | Coventry South | | Delivery location | Not specified | ## CPV Codes ### Divisions - 39 - Furniture (incl. office furniture), furnishings, domestic appliances (excl. lighting) and cleaning products - 42 - Industrial machinery - 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus) ### Codes - 39350000 - Sewerage works equipment - 42996000 - Machinery for the treatment of sewage - 44611400 - Storage tanks ## Release History - 17 Nov 2025 at 16:43 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/074539-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/074539-2025 17th November 2025 - Preliminary market engagement notice on Find a Tender ## Notice URLs - https://forms.office.com/e/DXvN6PYLgL - https://www.legislation.gov.uk/ukpga/2023/54/contents ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e2cb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05e2cb.json.