Case Studies

diffuCLEAR Lowers the Blower Costs for Severn Trent at Lydney STW

diffuCLEAR, the on-site air diffuser remediation service from Air Technology Ltd, has reduced energy use and Carbon Footprint at Severn Trent’s Lydney STW in Gloucestershire. Measurements of blower performance were made in 2010 and again pre- and post-treatment in 2013, so it was possible to gain a clear picture both of the effect of biofilm […]


Acid Dosing reduces Blower Consumption at Cotton Valley WRC

NB – this is the text of a case study produced by Anglian Water for internal distribution under their Drop CO2 Hawk programme. Reproduced by kind permission. A programme of acid dosing was recently carried out at Cotton Valley WRC to help keep the significant cost of running the aeration blowers down. Cotton Valley uses […]


Mansfield Sewage Treatment Works

Diffuser Remediation Makes Savings for Severn Trent Air Technology’s diffuCLEAR validated acid cleaning treatment has revitalised the performance of the Activated Sludge Plant (ASP) aeration lanes at Severn Trent’s Mansfield Sewage Treatment Works, improving the efficiency of the process and reducing the energy required to achieve DO targets. The work was carried out economically and […]