Project:

Former Tata Power Plant – Site Remediation

Date:

2020-2022

Location:

Lostock, Cheshire, UK

Client:

Brown & Mason

Business Sectors:

Environmental Remediation

Services (Technical Disciplines):

The site housed the former boiler and turbine halls from a coal fire powered station and is undergoing redevelopment as a new energy from waste plant.

Historically lime waste had been buried on site surrounding the power station to depths of 3m below ground level. Due to the significant loading on the ground from the new plant, and the poor geotechnical properties of the lime waste it was not suitable to support the new buildings.

Due to its extremely high pH the waste would have been classified as hazardous for disposal, adding a significant cost to the project. VertaseFLI, working with the clients’ consultants developed a scheme to improve the geotechnical properties of the lime waste to allow its re-use on site.

Project Objectives/Outcomes:

Following completion of “proof of concept” bench scale trials to determine the appropriate design mix to stablilise the lime VertaseFLI deployed its Environmental Permit to site.

A dedicated treatment area was set up on site to segregate waste streams, and to complete ex-situ stabilisation. Treated lime waste was ransportated back to the excavation for placement, compaction and curing.

VertaseFLI completed all environmental monitoring testing to confirm the performance of the stabilised materials. Following curing, the final development platform achieved a CBR in excess of 30%.

Our Role:

Environment permit, Materials management, bench scale Stabilisation trials, ex-situ Stabilisation, Environmental Monitoring

Geoscience Ireland Contact: Alex Flynn aflynn@fli-group.com