Bridges took responsibility for the full detailed MEICA design and installation of the UV plant and ancillary equipment. This included a vacuum syphon loop system designed to instantaneously break high flows and prevent forward flow of invalidated water. Bridges was also tasked with designing a Phosphoric Acid Cleaning System for the UV reactors which could be operated without having to strip the reactors down.

Our scope of works included:
– Full detailed MEICA design
– Principle contractor role
– Design and install 800mm diameter syphon and expansion tank
– Design and install Phosphoric Acid cleaning system
– Design and install high level walkway
– Design, supply and install motors starter panels and ICA
– Design, supply and install full electrical installation Inc. containment, cabling, building services, testing, and fire and security alarm
– Design, supply and install all Instrumentation and monitoring equipment
– Design, supply and Install louvres and HVAC system
– Provide full electrical and process commissioning, including comprehensive information and relevant training for Bristol Water operatives.

Scope of supply:
– FBE coated carbon steel & U-PVC solvent cement pipework
– Sample boards
– Motor starters and panels
– ICA – instrumentation, control and automation.
– GMS stairways and access platforms
– Large bore valves and actuated valves
– Pumps
– Instrumentation
– Installation and commissioning
– Disinfection and chlorination of pipework and structures
– UPS system

Bridges undertook responsibility for final disinfection of the whole UV system – including all pipes and structures between the Micro-strainer building (UV Inlet Main) connection and the connections to the contact tank (including the UV Inlet Tanks and Weir Chamber).