Water company achieve regulatory compliance thanks to new nereda plant | Nereda
Image: UU officially marked achieving regulatory compliance at Kendal WWTP thanks to the Nereda® plant’s excellent performance.

United Utilities took the decision to invest in Nereda technology, as part of its drive to improve treated water quality and reduce operational costs across its wastewater assets. The new plant was delivered by construction partners LiMA, working with technology providers Royal HaskoningDHV. It was initially commissioned in October 2018 and was operational and already achieving exceptional performance prior to United Utilities’ March 2019 compliance date. Kendall WWTP is the first of four Nereda installations commissioned by United Utilities.

Nereda technology was selected for the project, as it offers a number of advantages over conventional activated sludge. This is due to the nature of its granules. Contrary to conventional processes, bacteria combine into a compact granular structure with excellent settling characteristics. The compacted structure also leads to the formation of different zones, which provide the optimum conditions for simultaneous nitrification and denitrification, as well as biological phosphorus removal. Due to the fast settling granules the Nereda process operates at high biomass concentrations. This leads to a smaller reactor footprint, which was a key reason behind the decision to use Nereda technology at Kendal WwTW.

Nereda is an established game-changer for sustainable wastewater technology. There is now over 65 Nereda projects completed or being delivered across the world, offering the perfect solution for countries facing growing urbanisation and improved environmental protection.

Nereda® WWTP in Kendal, UK