ESG Brochure 2023 - Report - Page 7
Environment
Siltbuster & Selwood Case Study
Working closely with a UK water company the Siltbuster and Selwood businesses delivered a wastewater
treatment solutions in challenging time scales and complexity to manage environmental resilience for the
existing assets.
Based on the positive working relationships with the Client and the technical expertise of the Siltbuster and Selwood
businesses, the team was well aligned to achieve success for the project. To enable critical asset refurbishment to take place,
a treatment solution was required and it was soon established that the most robust solution would be build a complete
wastewater temporary treatment plant that included all feed and return overpumping systems. This would enable
parallel operation and complete flexibility to the capital improvements on the existing site and provide a robust
solution, but would require careful planning, design, and installation work.
The modular treatment systems that Siltbuster use are based on package plant technology, providing a high
treatment capacity for its footprint and this was particularly critical given the location and the footprint available.
All of the treatment modules were assembled and tested in the Monmouth facility and then delivered to site,
aligned to a very specific logistics plan for sequencing of the installation.
Selwood selected the electrically driven S150 pumps to over pump incoming liquors from the existing
works to the Siltbuster treatment plant. Electric submersible Flygt pumps were to pump return and
de-sludge liquors back to the works. Each set up had duty and standby pumps, variable speed drives,
ultrasonic control panels and duty and standby generators installed. Electronic magflow meters were
installed in the feed and return lines so that Client could continually monitor pumped flows.
The Siltbuster process engineering and delivery teams were actively involved in all elements
of the installation and commissioning works, this ensured that the treatment works was
commissioned in line with expectations and achieve the desired water quality results. The
result was a successful total overpumping and treatment solution which enabled the
Client to remain in compliance, protect the local environment and continue providing its
customers with a seamless service whilst the asset refurbishment takes place.
Selwood and Siltbuster worked collaboratively throughout planning and delivery
to reduce the number of generators to operate all the pumping and treatment
equipment. This significant reduction in fuel used was in excess of over 100,000
litres. Therefore reducing CO2 by 283 tonnes and saving over £60,000 in cost.
W O R K D R Y. C O M
I
7
