---
title: "Design, Supply and Delivery of Membrane Aerated Biofilm Reactor (MABR) systems"
ocid: "ocds-h6vhtk-06eee1"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06eee1"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06eee1.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06eee1.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "SEVERN TRENT WATER LIMITED"
published: "2026-08-28"
---

# Design, Supply and Delivery of Membrane Aerated Biofilm Reactor (MABR) systems

Buyer: SEVERN TRENT WATER LIMITED  
Current stage: Planning  
OCID: ocds-h6vhtk-06eee1

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## Summary

Severn Trent Water Limited is exploring the design, assembly, manufacture, supply, delivery and co-commissioning of Membrane Aerated Biofilm Reactor (MABR) systems for approximately 13 wastewater treatment sites across England. The core requirement includes design support, manufacture, supply, delivery and co-commissioning. The buyer is also considering whether suppliers could provide detailed design, installation, commissioning, optimisation and maintenance support. This is a goods procurement involving machinery for sewage treatment, with an associated air-quality management element (CPV 42996000 and 90731100). Delivery spans sites across the North East, North West, Yorkshire and the Humber, East Midlands, West Midlands, East of England, London, South East and South West of England. Severn Trent Water Limited is the buying organisation.

The process is at the planning stage: Severn Trent Water Limited is conducting market engagement to shape its procurement strategy, scope and future tender approach, rather than inviting bids. The buyer expects to use a framework agreement and has identified one lot, which is suitable for small and medium-sized enterprises. The planned contract period is from 31 March 2027 to 31 March 2031, with a possible extension to 31 March 2035. The buyer invited potential suppliers to complete a Market Engagement Questionnaire, with responses requested by 15 September 2026 at 14:00. Responses will inform the future procurement and will not be evaluated or used in any later tender assessment. The procurement is above the applicable threshold.

This will suit manufacturers, technology providers and engineering contractors with proven capability in membrane aerated biofilm reactor systems and wastewater treatment infrastructure. Relevant businesses are likely to be able to support the full equipment lifecycle, from system design and manufacture through delivery, installation, commissioning and operational optimisation. Suppliers able to provide maintenance support may also be well placed if that responsibility forms part of the eventual scope. The scale involves deployment across approximately 13 wastewater treatment sites, so organisations should be prepared to coordinate work across multiple locations and manage repeat installation or commissioning activities. Small and medium-sized enterprises are expressly considered suitable for the planned lot. The market engagement is an opportunity to help shape the requirements and prepare for the future tender.

## Notice

Severn Trent Water (STW) is undertaking a market engagement exercise to inform a future procurement for the design, assembly, supply, delivery and co-commissioning of Membrane Aerated Biofilm Reactor (MABR) systems across approximately 13 wastewater treatment sites. This exercise will inform procurement strategy, scope development and market understanding. Core scope includes design support, manufacture, supply, delivery and co-commissioning of MABR systems. STW is also exploring whether suppliers can undertake additional responsibilities such as detailed design, installation, commissioning, optimisation and maintenance support.

### Planning Information

Potential suppliers are invited to review and complete the Market Engagement Questionnaire, available via the link below.
Responses will be used solely to inform Severn Trent Water's procurement strategy, scope development, and future tender approach. Responses will not be evaluated and will not form part of any future procurement or tender assessment.
Please submit your completed questionnaire by Tuesday 15th September 2026 by 14:00.
Questionnaire Link - https://forms.cloud.microsoft/e/xC4JZPypVK

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/082333-2026 |
| Notice type | UK2 - Preliminary Market Engagement Notice |
| Procurement type | Framework |
| Procurement category | Goods |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 28 Aug 2026 |
| Submission deadline | Not specified |
| Future notice date | 15 Sep 2026 |
| Award date | Not specified |
| Contract period | 31 Mar 2027 - 31 Mar 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| 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 |
| Postcode area | 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 | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England) |

## CPV Codes

### Divisions

- 42 - Industrial machinery
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 42996000 - Machinery for the treatment of sewage
- 90731100 - Air quality management

## Release History

- 28 Aug 2026 at 16:11 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/082333-2026
- 28 Aug 2026 at 16:09 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/082330-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/082333-2026
  28th August 2026 - Preliminary market engagement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/082330-2026
  28th August 2026 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- http://www.severntrent.com
- https://forms.cloud.microsoft/e/xC4JZPypVK
- 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-06eee1. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06eee1.json.