After several years of intensive trials, UK water company United Utilities selected three wastewater treatment plants to be the first ones to employ the Nereda technology, which uses granular biomass to treat wastewater in a more sustainable and cost-effective way.

Wastewater treatment plant Kendal (top photo), situated on the banks of the River Kent, will be the largest Nereda plant in the UK, using the new technology from October 2018 onward.

The two other wwtps selected by United Utilities are Morecambe and Failsworth.

dws-rhdhv-nereda-wwtp-kendal-bassin-350pxThe Nereda plant will be a big step forward in water treatment technology at wwtp Kendal, UK

Massive overhaul
Installation of the new technology will form part of a massive 70 million GBP project upgrade at Morecambe wastewater treatment works, which is meant to ensure that the effluent leaving the works meets Environment Agency standards. The upgraded wwtp will be operational in April 2019.

The compact nature of the plants, which typically requires a quarter of the land area that is needed for an equivalent conventional activated sludge plant, is one of the reasons why Failsworth is using Nereda technology in its upgrade.

The scale of the three sites is significant. They will treat waste for a population equivalent (PE) of 147,000.

dws-rhdhv-nereda-kendal-rwzi-utrecht-350pxUnder construction: a Nereda plant in Utrecht, the Netherlands. It will become operational in 2019 and will be the biggest Nereda plant in the Netherlands

Early adopter
United Utilities has been an early adopter of Nereda technology and had the first UK Nereda pilot plant delivered to its wastewater treatment works at Davyhulme, Manchester in 2013.

After the pilot plant was delivered, the water company carried out a comprehensive review of this emerging technology, with successful pilot trials at a number of treatment works.

Director of Wastewater Network Plus, Keith Haslett, at United Utilities explained: ‘We are always looking for innovation to provide both customer and environmental benefits in a sustainable way and our pilot work has proven this innovation treatment process will provide a step change for wastewater treatment across the North West.’

Significant step forward
According to United Utilities, the introduction of the Nereda process is a significant and evolutionary step forward in wastewater treatment technology.

Nereda combines the treatment characteristics of granular biomass in highly automated Sequencing Batch Reactors, resulting in reductions in footprint, cost, electricity, sludge production and chemical consumption, and results in improved environmental compliance.

This news item was originally published on the website of United Utilities.

Read also on this website
Nereda waste water treatment technology selected for new wwtp Tijuco Preto, Brasil, 19 June 2017
Sweden’s first Nereda wastewater treatment plant to be built in Strömstad, 22 May 2017
Large-scale extraction of Nereda alginate from waste water at wwtp Apeldoorn, the Netherlands, 20 April 2017

More information
Royal HaskoningDHV
Amersfoort, the Netherlands
+31 88 348 20 00