Bolnhurst - Bedfordshire, UK

The Bolnhurst Water Recycling Centre upgrade showcases an innovative, low-carbon approach to nutrient removal and wastewater treatment. Delivered by Anglian Water's @one Alliance, the project was designed to meet stringent new phosphorus discharge requirements while overcoming the challenges of a constrained site footprint and ageing infrastructure. 

Key Features

• First large-scale algae-based phosphorus removal system at the site

• Chemical-free treatment process supporting lower operational carbon

• Modular, prefabricated design enabling delivery on a constrained footprint.

• Enhanced water quality outcomes through compliance with a 0.5 mg/L phosphorus consent.

• Supports resource recovery and circular economy principles through beneficial reuse of algal biomass.

This pioneering project demonstrates how innovative, nature-based treatment technologies can help utilities meet increasingly stringent environmental standards while reducing carbon, energy use and reliance on chemical treatment processes.