Treatment recovery Paques a punch for Severn Trent

摘要

An innovative three-stage biological sewage treatment process is cutting costs and improving efficiency at Nottingham's Stoke Bardolph wastewater treatment works. The Severn Trent Water plant serves a population equivalent of 650,000 and includes a stream of difficult-to-treat trade waste from a local rendering plant. A new phosphate consent along with the need to replace ageing assets at Stoke Bardolph provided Seven Trent with the opportunity to reduce the physical footprint of the process, target improved resource recovery and allow for the possibility of raised ammonia consents in the water industry's asset management period 2020-25 (AMP7). The £6.8M system at the Nottingham plant, which replaces a conventional activated sludge process (ASP), also presented particular challenges in terms of process and control for the project partners.