Ammonia reduction project in UK

Maintains quality of water discharged into river

Black & Veatch has completed the handover of a vital ammonia reduction project that will maintain the quality of water discharged into Staffordshire waterways in the UK.

The Strongford Nitrifying Submerged Aerated Filter (NSAF) Project is a tertiary treatment for the biological oxidation of wastewaters. The NSAF at Strongford Sewage Treatment Works (STW), in the West Midlands of England, can be operated in a reduced-energy mode. This mode calculates the number of cells required to meet the desired output quality and brings them into service. Assessment of the incoming effluent flow and load will allow the plant to no longer operate as a single unit but cell by cell as needed, reducing energy consumption.

Black & Veatch was responsible for detailed mechanical and electrical design, construction and commissioning of the £11 million project, built under the AMP4 Framework Agreement for Severn Trent Water.

“We are celebrating delivering an innovative project on time that will benefit the client, local residents and the environment,” said Tony Collins, Managing Director of Black & Veatch’s UK water business. “We will be able to build on the success of this project as we begin work on the next in the series of major projects being undertaken at Strongford STW.”

Strongford STW serves a population of 330,000 in the towns of Stoke-on-Trent and Newcastle-under-Lyme in Staffordshire by treating a mixture of industrial and domestic wastewaters. The final effluent is discharged to the River Trent via Yockerton Brook, and the recent works will ensure Strongford STW continues to achieve compliance with an Environment Agency discharge consent driven by the EU Fisheries Directive.