Northumbrian helps create gel to prevent tree root ingress
Northumbrian Water is working with Durham University and a company called Intelligent Gels to help prevent tree roots from damaging the sewer network.
Staff currently have to cut roots out of sewers to prevent them blocking pipes, but the three organisations have been working together to create a new gel that uses a more eco-friendly copper formulation to form a protective barrier and anti-root invasion solution.
It would be applied to the inside of existing sewer pipes and coated on new pipes laid in the future to stop tree roots growing any further without killing the tree.
A small section of working garden, located in the University's Botanic Garden on the outskirts of Durham City, has been set aside for the project to help showcase the idea.
The garden includes a length of sewer pipe, provided by Northumbrian Water's supply partners Esh-Stantec, to show visitors how destructive tree roots can be and how the gel will work.
Simon Cyhanko, head of wastewater networks at Northumbrian Water, said: "Tree roots increase the risk of flooding to our customers by causing blockages in the sewer pipes and cost us thousands of pounds every year to repair.
"However, trees are vitally important to the environment and we don't want to kill them or dig them out – we'd just like to deflect their roots.
"I'm really excited to be working with Durham University and Intelligent Gels on this project, which will be a real game-changer in helping us to manage our network and prevent damage to it, while preserving the tree itself."
Dr Jennifer Topping, assistant professor from the Department of Biosciences at Durham University and academic lead for the project, said: "Durham University has a long-standing, active research partnership with Northumbrian Water where we are using our research expertise to solve water-related challenges.
"This exciting project combines our own expertise with that of Intelligent Gels so that we can work together with Northumbrian Water to develop a new approach to prevent root growth in wastewater pipes."
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