Clay Mills is a large filter works serving a domestic population of around 100,000 in Burton-on-Trent, Staffordshire UK. MWH was responsible for the design and construction of a new activated sludge plant at Clay Mills. The principal driver for the project scope was phosphorus removal, although sludge treatment was also improved. 

  • The project successfully recycled 100% of waste produced, as well as reducing their Co2 emissions by 25%.
  • Saved over £450,000.
  • UK’s Environmental Agency regulations stipulate the removal of 80% of phosphorus from waste, in order to improve digestion, increase green energy generated from biogas, as well as to adhere to regulations. The plant upgrade also included a new sludge thickening works, an acid phase digester and CHP (Combined Heat and Power).
  • Won three Silver awards at the National Considerate Constructors Scheme Awards.
  • MWH was awarded the Gold Considerate Constructors Award in 2015.