Source: https://tendernation.io/opportunities/01a13bd8-2489-7176-b194-55d13c68acf3/the-supply-deliver-and-installation-of-trickling-filters closed GB restricted procedure # The Supply, Deliver and Installation of Trickling Filters [Scottish Water](https://tendernation.io/buyers/scottish-water) Estimated value £2,400,000 Published 12 Mar 2026 Deadline Closed 30 Mar 2026 ## Who can bid - Split into 2 lots You can usually bid for just the lots you can deliver. - 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. ## About this tender Scope and description of requirement the scope is for the Supply, Delivery and Installation of Trickling Filters across all Scottish Water operational areas, including remote regions such as the Highlands and Islands. More information on the requirements and specifications can be found within the internal documents folder within Atamis. Contract duration 4-year initial term with 4 x 1-year extension options. The break points in the contract will allow SW to review the market and ensure the product is still fit for purpose and providing value for money.Lot 1 Supply and-or Refurbishment of Distributors for Biological Waste Water Treatment. Approx £900K for initial 4-year term (£1.8m including extensions). Scope of the supply covered by this agreement:1. Specification, Design, Manufacture and/or Procurement.2. Installation and Installation Management.3. Testing, Commissioning and Training.4. Ongoing Servicing, Support and Maintenance.5. Documentation / Manuals.6. Opex analysis.The plant and equipment included in this procurement includes but is not limited to:1. Conventional Jet Reaction Drive. 2. Paddle Wheel Drive.3. Peripheral Powered Drive. 4. Centrally Powered Drive.5. Tubular Distribution Arms. 6. Open-Trough Distribution Arms.Lot 2 Complete Nitrifying Trickling Filter Package. Approx £300K for initial 4-year term (£600K including extensions). The scope of the supply covered by this agreement is for the surveying, design, manufacturing, works testing (where required), delivery, offloading, installation, commissioning and testing of Nitrifying Trickling Filter Package Plant and Equipment and all necessary ancillary equipment. The work scope will include, but will not be limited to:1. Specification, Design, Manufacture and/or Procurement.2. Installation and Installation Management.3. Testing, Commissioning and Training.4. Ongoing Servicing, Support and Maintenance.5. Documentation / Manuals.The plant and equipment included in this procurement includes but is not limited to:• Filters.• Media (Various Types).• Distributor Arms. Read full description ## CPV classification Removal services of biological waste Source Find a Tender (UK) · Notice ocds-h6vhtk-066871-2026-03-12T14:02:31Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-066871-2026-03-12T14:02:31Z) 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. 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