Veolia Water Technologies has secured a contract to upgrade the treatment process at Trescott Wastewater Treatment Works (WwTW) to meet a tighter ammonia discharge consent of 1 mg/l.
As with the recently announced Little Aston WwTW upgrade, the project will use Veolia’s Moving Bed Biofilm Reactor (MBBR) technology to provide a cost-effective solution which will meet current and future needs.
Severn Trent Water and its Tier 1 delivery partner, Mott Macdonald Bentley (MMB), considered a number of options, including replacing the existing trickling filters with an activated sludge plant, but these presented significant budget challenges.
A feasibility study conducted by Severn Trent Water and MMB established that the existing trickling filters were in good condition with a suitable asset life. Veolia worked closely with the project team to develop an MBBR upgrade solution which would enable the existing assets to be retained, providing significant CAPEX and OPEX benefits.
A visit to Cudworth sewerage treatment works allowed the process engineering and operations teams to see the MBBR technology in action, demonstrating its ease of operation and process performance.
Trescott WwTW will be the fifth Severn Trent Water site to use Veolia’s MBBR technology.
HUBER Technology UK & Ireland are inviting people to register for their March webinar where they will be providing information about HUBER water intake screens for municipal and industrial applications.

Hear how United Utilities is accelerating its investment to reduce spills from storm overflows across the Northwest.