Challenge

In 2015, a major refurbishment was carried out by Yorkshire Water at the Naburn WwTW, as part of the AMP programme.

The main project involved the refurbishment of three of the existing aeration lanes. This required the complete closure of each lane for diffuser cleaning or replacement.

As the work was to take place over a number of months, the operating aeration lanes required additional oxygen in order to cope with the works’ flow.

Work done

Aquasystems International NV provided 1 x 90kW, 1 x 75kW and 1 x 55kW AER-ASaAquaturbo floating aerators from its extensive hire fleet. The 3 units were installed in December 2015, together with electrical control panels and cabling. All the aerators were installed in situ and commissioned within a few days without any disruption to the existing plant.

Outcome

The aerators have been used to support the existing activated sludge plant and the units have been run almost continuously to enhance the existing plant. Additionally, the amount of oxygen provided by the aerators ensured that de-nitrification was minimised, thus reducing the risk of rising sludge in the settlement tanks.

A spokesman for Yorkshire Water commented: "All parties involved are extremely pleased with the performance of Aquaturbo floating aerators during this extensive refurbishment programme at The Naburn works. The works has met its consent due to the additional aeration capacity provided by Aquasystems International NV".

 

For more information, please contact Peter Wood at ASI UK Office: tel 07939 096048 or [email protected]