Project Description
Newthorpe Sewage Treatment Works (STW) is a large site in Severn Trent. In AMP7, under the Water Framework Directive (WFD), the site has to meet a tightened total phosphorus (TP) consent of 0.2 mg/l, and an Iron consent of 4 mg/l. To achieve these new consent standards, Severn Trent installed a FilterClear® plant.
The decision was based on a comprehensive whole life cost (WLC) assessment of various tertiary solids removal (TSR) plants. This is Bluewater Bio’s first horizontal FilterClear® plant in the UK, demonstrating its treatment capability for large sites.
The site was commissioned with Ferric dosing for P removal, and the FilterClear performance demonstrated that the compliance can be achieved reliably.
| Project Name: | Newthorpe STW |
| Client: | Severn Trent |
| Capacity: | 714 L/s |
| Main Contractor: | MMB |
| Project Scope: | Design, supply & commission |
Project Highlights
- Off-site manufacture
- Consent of 0.2 mg/l TP and 4 mg/l Fe
- Rapid installation and commissioning
- No separate flocculation tank needed
Scope of Works
Project Duration
FilterClear delivered: July 2024
Installation time ~ 12 weeks
Commissioning time ~ 4 weeks .
Client Contact
Client organisation: Severn Trent
Contact person: Jamie Beech (Project Manager)
Newthorpe STW Process Parameters
| Average flow | 29,261 m3 /d |
| Maximum flow | 714 l/s |
| Design Influent TSS conc. (incl. chemical solids) | 35 mg/L (average) 45 mg/L (98%ile) |
| Effluent TP consent | 0.2 mg/L (average) |
| Effluent Fe consent | 4 mg/L (95%ile) |
