Wastewater collection, treatment and reuse
Wastewater collection networks and treatment facilities are facing unprecedented challenges, with population growth, climate change, ageing assets and network overflows driving the need for smarter, more innovative solutions.
We have decades of experience in developing cutting-edge, resilient solutions for the collection, treatment, recycling and reuse of wastewater.
We are working towards a cleaner, better natural environment that embraces the circular economy, drives down greenhouse gas emissions, maximises water reuse, generates as much energy as possible and recovers precious resources.
What can we do for you?
We search for opportunities to add value, and we constantly stretch our thinking to cut costs and carbon, increase efficiency, improve resilience and reliability, and reduce risk.
Sustainability and climate resilience
We can assist in the design and management of water recycling plants and network assets to reduce carbon emissions and mitigate the impacts of climate change and extreme weather events. We are co-authors of PAS 2080, the first international specification for managing infrastructure in the built environment, and decarbonisation is embodied in our solutions – from design and construction to improving the performance, lifespan and value of existing assets.
Technical know-how
Our teams have extensive knowledge of all aspects of wastewater treatment, including conventional treatment, biological nutrient removal, process modelling, troubleshooting and process optimisation. We are also skilled in advanced biosolids management, including anaerobic digestion, side-stream treatment systems, heat recovery and energy generation.
Innovation as standard
We will work with you and your delivery partners to solve your challenges in the most appropriate way – always with a clear focus on affordability, sustainability, deliverability, robustness and resilience. We have always been among the first in the water industry to adopt next-generation technologies that drive down capital and whole-life costs and offer added value.
Connecting and understanding
Collaboration is one of our core strengths. We will work closely with you to gain an understanding of your business and regulatory environment – and, working with your wider supply chain, harness our collective skills and ingenuity to forge delivery models that provide end-to-end service and support.
Innovative wastewater solutions for sustainable reuse
From first-time affordable sanitation in lower and middle income countries to major automated wastewater treatment and water recycling plants in advanced economies, we apply deep technical expertise from across our global network to address complex local challenges.
There are increasing opportunities for water recycling that require full consideration of appropriate technologies, as well as management of contaminants of emerging concern such as microplastics and pharmaceutical products.
Our experience
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Cohocksink storm flood relief, Philadelphia, USAWeaving new sewer capacity through the existing utilities and historic remnants of a 340-year-old city requires liaison with multiple asset owners and other stakeholders. The Cohocksink project doubles the previously existing sewer capacity and will prevent flooding after heavy rainfall. Greater system controls reduce sewage outflow into the Delaware River, improving the environment for both aquatic life and the local population.
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Rosedale wastewater treatment plant, Auckland, New ZealandWe took digital twin technology to a new level by producing an accurate virtual model of the Rosedale plant in Auckland. It is continuously updated by live performance data and features visual dashboards providing instant readouts of operational cost data (which would otherwise be manually calculated monthly). Our client, Watercare, can now more tightly manage both energy use and greenhouse gas emissions.
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Stoke Bardolph advanced anaerobic digestion plant, Nottingham, UKWe helped client Severn Trent Water towards its decarbonisation targets and contributed to the circular economy by designing, constructing and commissioning this advanced anaerobic digestion plant. It turns sewage sludge into agricultural fertiliser and green energy for thousands of homes. We used a digital twin of the plant to optimise its performance.
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Tideway, London, UKWe designed the permanent structures and tunnels for the eastern section of London’s super-sewer – a 25km interceptor constructed to prevent huge volumes of wastewater from flowing into the River Thames from old combined sewer overflows.
Safe Swim
Moata Safe Swim provides public information on water quality, so people know when and where they can safely enter the sea. It also helps water companies better understand how their systems are performing and improve management, and the data record generated can be used to build strong business cases for investment in new assets.
