
Spernal
Fabrication and mechanical installation of stainless steel MBBR aeration systems, sieves, and pipework at Spernal WwTW for Veolia
Bartec was contracted by Veolia to deliver the fabrication and mechanical installation of the MBBR process systems at Spernal Wastewater Treatment Works, including internal aeration grids, media retaining sieves, flow splitter chambers, and interconnecting stainless steel pipework.
Working from Veolia’s detailed process models and P&IDs, Bartec fabricated and installed:
Coarse bubble aeration systems for three MBBR tanks, with flanged 304 stainless pipework and integral supports
Over 40 media sieve assemblies with air sparging, mounted on custom stainless steel support structures
Full sets of aeration pipework from the blower systems to the MBBR grids and sieves
Two large stainless steel splitter chambers, each hydrostatically tested, with flanged PN16 connections and structural supports
Three sample tanks for instrumentation mounting
Associated mechanical installation, including cranes, positioning of blowers, valves, instrumentation, and earth bonding of flanges
All fabrication was carried out in-house to ensure quality and dimensional accuracy, followed by staged delivery and phased installation on site. The scope also included pipework flow coding and M6 earth stud welding at every coated flange.
This project demonstrates Bartec’s ability to deliver high-value, complex stainless steel mechanical packages for advanced wastewater process installations, combining detailed fabrication, phased delivery, and disciplined site execution.