PECM Issue 21 2016 | Page 70

Salmon to Return to River Don Following Sewage Works Upgrade he River Don is cleaner now than at any time since the Industrial Revolution, thanks in part to a £78m scheme to improve the Blackburn Meadows Sewage Treatment Works in Sheffield. T Much of the new equipment at the sewage treatment works was designed, manufactured, installed and commissioned by A&J Fabtech of Dewsbury in West Yorkshire, who also refurbished some of the existing equipment. There has been a treatment works on the site for over 130 years; today it serves nearly 800,000 homes and businesses across South Yorkshire. 70 PECM Issue 21 The upgrade works also incorporate a storm overflow scheme which reduces the likelihood of damaging flooding in the area, a critical function as the works is only a stone's throw from the 280-store Meadow Hall shopping centre. The project to upgrade Blackburn Meadows started in 2012, with the initial objective being to reduce the levels of ammonia in the River Don so that a balanced and more natural ecosystem could develop. It has continued in stages and is now a state-of-the-art facility that ensures water quality capable of supporting a diverse plant and animal wildlife profile. A&J Fabtech has played a major role in the sewage treatment aspects of this project, including the refurbishment of existing equipment and the installation of new settlement tanks. "The existing tanks were based on a 1960s design, so were a lot deeper than modern tanks but otherwise very similar," explains Shaun Brosnan, A&J Fabtech's Contract Manager for Blackburn Meadows. "It made sense to refurbish these, and build some completely new ones to add extra capacity."