Wigton WwTW treats effluent from local companies and also some of the municipal waste produced in the Preston region. Between 2018 and 2019, a new treatment works was built by Volker Steven on behalf of United Utilities.
The main project involved the building of a new treatment tank and the installation of three 75kW Aqua Turbo® floating aerators, together with a 15kW central floating/submersible mixer. This Tank is operated as an activated sludge process (ASP) with central tank mixing to prevent any settlement and also allow process utilisation of all the residual disolved oxygen in the tank at certain periods of the day.
The process design was carried out by Volker Steven and Aquasystems and was commissioned in early 2019. The work had to take place during the ongoing operation of the existing plant, and involved a number of months of planning and implementation process with the client. All the aerators were installed in situ and commissioned within a few days without any disruption to the existing plant.
A spokesperson for Volker Steven said "all parties involved are extremely pleased with the performance of Aqua Turbo® floating aerators and mixer during this extensive programme at the Wigton works. The works has met its consent due to the additional aeration capacity provided by Aquasystems International NV".