Towards efficient and sustainable wastewater management
The objectives of this project were to strengthen compliance, streamline operations, boosting treatment capacity and extending operational life of assets wherever possible.
However, due to the nature of the project and varying infrastructure on sites, tailored solutions for each site were offered to the client. This involved a full lifecycle approach, overseeing every stage, from the initial asset surveys to the detailed design phase, securing statutory approvals, managing contract procurement, and administering contracts. Egis' additional responsibilities on the project included site supervision, project closeout, and the final handover to operations, working with contractor team from Conway Engineering, on live sites with minimal downtime.
The solution
The Egis team delivered a multi-layered solution that began with addressing asset deficiencies at 60 WwTPs nationwide. The key focus for the team was on assessing key components of these treatment systems, including preliminary treatment infrastructure, stormwater management, and sludge storage solutions.
Existing assets and infrastructure were upgraded where economically viable following a detailed assessment of alternatives and the completion of a cost benefit analysis. New WwTP elements where required have been designed optimally to enhance capacity, minimise the impact on the natural and built environment, and maximise the benefit for existing and future development.
Multi stage project
At time of writing in late 2024, 85 sites have been through the asset survey and optioneering phase while 20 sites have successfully completed the detailed design phase and are nearing completion.
Eleven sites were constructed throughout 2024, and two further commenced construction in December 24.Ten sites are in the Planning Phase. A total of 40 sites have achieved planning approval, following submissions to 16 different local planning authorities.
Complexity in design - consistent benefits
Managing a complex project across varying sites and complying with regulatory requirements can present significant challenges, requiring close coordination among stakeholders, operators, engineers, contractors, and the client. The success of this project so far highlights the collaborative approach taken by Egis to overcome challenges and drive progress across all phases of the project.
While the project is complex and features an array of bespoke solutions, its environmental and economic benefits are consistent. More efficient plants, incorporating high-performance and climate resilient design, nature based solutions and energy capture and reuse, all deliver significant return for our client, and benefit the populations they serve as well as the surrounding environment.
