Sector
Water
Shoreham, UK
Location
Ongoing
Date
The Summary
Southern Water engaged Selwood and Siltbuster to support a programme of planned maintenance and repair works on key assets at the treatment works.
The Challenge
The project faced several critical challenges, beginning with an extremely restricted site footprint that severely limits plant placement and access. This was compounded by a complex hydraulic arrangement driven by split assets and a remote, off-site pumping station.
Additionally, the system had to handle high rag content within the wastewater stream, all while managing an elevated compliance risk due to the site's sensitive coastal location. There was also the requirement to maintain full operational continuity throughout the duration of the works.
Additionally, the system had to handle high rag content within the wastewater stream, all while managing an elevated compliance risk due to the site's sensitive coastal location. There was also the requirement to maintain full operational continuity throughout the duration of the works.
The Solution
Due to the site constraints, a single-phase approach would not be sufficient, Selwood and Siltbuster agreed to deliver the works in two phases:
Phase 1 - Establishment of a robust bypass solution to support immediate planned maintenance.
Phase 2 - Optimisation and expansion of treatment capacity following site reconfiguration.
Phase 1 is currently underway.
During operations, exceptionally high rag loads highlighted the need for additional treatment capacity to ensure full compliance. In response, Selwood and Siltbuster worked collaboratively with Southern Water to enhance system resilience by reconfiguring the modular treatment setup, repurposing available site space, and deploying additional HB50MR units.
The Results
Reduced environmental and compliance risk at a highly sensitive coastal location.
Demonstrated the flexibility and scalability of modular treatment solutions in a constrained operational site.
Maintained operational continuity throughout the planned works, minimising disruption to site operations.
Successful bypass of ageing assets, enabling essential maintenance and repair works to proceed safely and efficiently.
Established a clear pathway for enhanced treatment capacity during Phase 2 of the project.
