Blakburn and Darwen WwTW Integrated Solution.

Descriptions

The project is to be procured as a single contract comprising the design, construction, commissioning and operation/optimisation of new and refurbished wastewater treatment facilities at Blackburn and Darwen Wastewater Treatment Works, together with a new transfer pipeline.The project seeks to provide a holistic engineering solution to the multiple quality and maintenance drivers at the two locations, including compliance with the Bathing Waters standard, the Water Framework Directive consent and a new phosphorus consent.Subject to the design proposed by the successful bidder, works are likely to include (but are not limited to):— Refurbishment of existing facilities;— Storm storage;— New sewage transfer pipeline;— New primary, secondary and potentially tertiary treatment;— Additional final effluent UV treatment capacity;— New or modified outfalls with hydro-generation;— New wastewater sludge treatment facilities including CHP engines;— New effluent screening and grit removal facilities;— Site drainage;— Internal site access roads and parking/hard standing areas;— Office accommodation;— Amendments to site HV and LV power distribution;— New SCADA systems including remote access and monitoring;— Provision of temporary plant;— Decommissioning of remaining redundant assets.The Employer operates in a regulated environment and it is essential that the operation, quality performance and throughput of the existing Works are maintained throughout the construction period.