The wider works comprised of the installation of 4 new Submerged Aerated Filters (SAFs) to replace the existing High Rate Filter which was underperforming. The performance problems with the HRF were causing the works to operate at the top end of the consents limit set by the Environment Agency, with a high possibility of failures.
Random biological filter media from Warden Biomedia were chosen to provide ultra-efficient and cost-effective aerobic treatment in the new ATUs for Severn Trent Water. The aerated treatment units were manufactured and supplied by Haith Industrial.
The excellent ventilation and high voidage performance of the Warden Biofil 135 and Bioball 220 filter media make them extremely effective in wastewater treatment applications. Triangular fins increase the total surface area and encourage the formation of the biological films of bacteria, protozoa and fungi which will ‘eat’ and biologically break down the organic c ontent. The design also ensures high voidage to prevent blocking that might otherwise slow down the process. The serrated edges of the fins enable them to interlock in the filter bed giving excellent mechanical strength.
“Warden’s filter media were a natural choice for this project as they have high efficiency rates and are also cost-effective and long-lasting.”
David Evans, Project Manager at Haith Industrial
FEATURED MEDIA
Biofil 135
Bioball 220
