Telluric has treated 32M litres of wastewater at Orgreave colliery near Sheffield since April. A temporary wastewater treatment plant and mobile laboratory was used to optimise the treatment process. Water contaminated with thiocyanate, phenols and benzine was stored in lagoons to be tested and treated and returned to site to be used for dust suppression when safe.
Mott MacDonald is the main engineer on a pounds54M millennium project for the International Centre for Life at Newcastle. The contract involves contaminated land remediation which has included the exhumation and reburial of 700 cadavers from a former hospital burial ground.
Structural Testing Services is using geophysical investigation equipment to locate buried mineshafts in sites around the country which are to be redeveloped for housing and industrial purposes. Shafts have successfully been located in redundant iron ore sites in Cumbria and coal sites in Scotland and Wales.
Nicholas Pearson Associates has provided ecological design at the Greenwich millennium site to help restore former wetland habitats and reintroduce flora and fauna to that part of the Thames estuary. Artificial river terraces formed a major part of the design of an urban wetland ecology park to encourage saltmarsh, flood meadow, reedbeds and waterfowl.
Polluted sediment and accumulated rubbish were dredged from the Grand Union and Digbeth Canals in Birmingham by Land & Water Services. Coal dust, chemical pollutants and heavy metals were removed using a pontoon mounted dredger and fed to an on-site decontamination plant where water and reagents cleaned the spoil.
Aspinwall & Company was charged with a three year redevelopment strategy of the 400ha Ravenscraig steelworks site in north Lanarkshire which closed in 1992. Significant quantities of contaminated soil were identified and are being treated in a secure containment facility, capped using natural clay and geosynthetic material.