A project to refurbish the largest Thames Water reed bed was recently completed.Berkhampsted reed beds consist of 16000m2 of passive Horizontal Sub Surface Flow reed beds. NWS was selected to refurb part of the system by removing the gravel and washing it. Wash water from the refurbishment was recycled through lamella filters and solids were collected and removed.
Design and build of an Aerated Reed Bed System for tertiary treatment using NWS predictive modelling.Completed April 2017
A large Land Treatment Area constructed for Thames Water with Open Water Zones to collect solids before discharging onto the plots.