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Meet the 20 finalists of the Water Discovery Challenge!

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Meet the 20 finalists of the Water Discovery Challenge!

July 3, 2023

Water-smart cities on horizon as splash-free paving slabs & roadside pollution filters receive Ofwat funding

A next-generation permeable pavement that absorbs rainwater into the ground beneath could soon be trialled across the UK to combat flooding through water-smart cities.
Government advisers have found that 325,000 homes and businesses are at high risk of floods when intense rainfall overwhelms drains, a problem exacerbated by concrete surfaces in cities. Kiacrete, developed by a team from Imperial College London, uses an advanced material consisting of concrete with a bespoke plastic drainage structure to drain stormwater. The gradual release means the ground beneath the slabs doesn’t become overwhelmed and water-logged.

Kiacrete promises significant environmental improvements, reduced risk of sewage overflows (which occur after heavy rainfall), a more resilient and sustainable water sector, and lower customer bills.

The solution is one of the 20 finalists in water regulator Ofwat’s Water Discovery Challenge, a £4m competition for innovators outside of the water sector with bold and ingenious ideas that can help solve complex challenges.

A filtration device that enables roadside drains to catch particulate pollution is also amongst the finalists. The technology captures pollution that would otherwise be washed into the ocean following heavy rainfall in cities. The system, from Guerrilla Technologies, will capture particulate matter – containing microscopic solids or liquid droplets that are so small they can be inhaled and cause serious health problems.  

 

“Cities face an increasing challenge from floods due to the impermeability of urban surfaces such as roads, pavements and garden patios, meanwhile extreme weather events such as heavy storms are increasing in frequency due to climate change.

Our permeable paving solution will increase cities’ resilience to heavy flooding, improving conditions for adjacent industries including transport and other utilities, and ultimately future-proofing our urban areas by turning them into water-smart cities.”

Alalea Kia, Project Lead for Kiacrete and UKRI Future Leaders Fellow at Imperial College London

 

“It’s no secret the water sector is facing tough challenges, and difficult choices, related to climate change, the wider environment, and society. As the regulator, it’s our responsibility to help the sector to find new ways to overcome these pressing challenges.

Water affects all industries, so with the Water Discovery Challenge we wanted to cast our net outside the sector, and see what those in adjacent industries propose to help us maintain a safe and sustainable supply. The finalist ideas address numerous core concerns for the future of the sector – from future-proofing cities to anticipating the impact of climate change, and we’re excited to help bring these ideas to life.”

David Black, CEO, Ofwat

 

What next?

The 20 finalists will now be awarded up to £50,000 from the Ofwat Innovation Fund, as well as non-financial, capacity-building support to develop their ideas further, including expert advice and mentoring from water companies. Up to 10 will go on to win up to £450,000, alongside ongoing support, to further develop and test their ideas, including delivering pilots.

Other solutions range from hydropower turbines which can harvest electricity from water flowing through pipes, to a new membrane which could enable energy-efficient desalination, and a novel ‘spray-on’ pipe liner to repair leaks.

 

The Water Discovery Challenge is part of a series of competitions from Ofwat, run by Challenge Works with Arup and Isle Utilities, designed to drive innovation and collaboration to benefit customers, society and the environment.

To find out more about the competition, visit: waterinnovation.challenges.org/water-discovery-challenge

🏆 10 winners announced!

From ‘lightning in a jar’ to AI; learn about the projects which aim to contribute to a better water system for all

Meet the winners

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About the 20 Water Discovery Challenge finalists

Notes to Editors 

For all media enquiries, please contact Alice Jaffe or Andrew McKay at Seven Consultancy.

The report ‘Reducing the risk of surface water flooding’ was published by the National Infrastructure Committee in November 2022.