Hewitech design and manufacture in the UK, Structured Media Filters for biological wastewater treatment applications in both municipal and industrial waste water. Our materials are used for BOD treatment in Trickling Filters (NTF), Submerged Aerated Filters (SAF), and Biologically Activated Fixed Film Filters (BAFF) in new and existing applications.
PP or PVC media is available in 12, 15, 19 and 27mm, giving effective surface areas of 240, 190, 150 and 125 m²/m³. The individual foils are shaped and extruded in one process giving uniform thickness, and then jointed using Hewitech’s welding techniques to give extremely high mechanical strength.
Hewitech, offer a complete design and turnkey installation service for the removal & waste disposal of your existing failed filter support structure, and installation of a new support and media.
Project management includes efficient waste disposal of old media, which saves costly plant downtime, delivering a reduction in carbon footprint and environmental impact.
Hewitech supply corrosion-resistant FRP open grid service walkways designed for man-loading to allow access to the distribution system and mechanical equipment.
Hewitech Inspection Column (HIC) gives you the ability to visually check and inspect the integrity of all the levels of fill and biofilm within the filter without removing layers of media resulting in no plant downtime