Geo² complete ground-breaking remediation treatment

Yorkshire based remediation specialists Geo² have completed treatment at the site of a former fuel-blending facility in Bury, Greater Manchester, showcasing an original and innovative energy-saving treatment technology in the process.

Geo² designed and installed a 5m³ Fixed Film Bioreactor Vessel, the first of its kind, designed to break down hydrocarbons in groundwater through a continuous process of bacterial aerobic respiration. The bespoke solution enabled Geo² to effectively treat contaminated groundwater on site, using only a low energy output and significantly less Granular Activated Carbon than traditional methods.

On completion of ground works, Geo² had brought a maximum recorded hydrocarbon thickness of 3.5m down to less than 5mm, equating to a 99% reduction. Alongside the hydrocarbon contamination, Geo² also encountered and treated widespread lubricating oil and thinners in soil and water samples.

The Bury site, most recently employed for the storage, blending and distribution of petroleum products exhibited not only a wide range and heavy concentration of contamination streams, but also an extremely complex geology, calling for an innovative approach to the planning and application of the remediation project.

Geo² worked alongside LK Associates and Daineswell Ltd on the 12 month project to remediate land for Lancashire Homes in Bury. Before becoming a fuel-blending facility, the site had also been employed as a brewery until the early 20th Century.

Geo² are no strangers to groundbreaking, low-carbon intensive treatments, having received a Brownfield Briefing award for “Most Innovative Remediation Method” in 2010, following a collaborative project with Arvia Technology using a waste-free regenerative adsorption process for treating contaminated water.

Mark Swindells, Founder of Geo² said: “We have been delighted by the results of our work in Bury. We are particularly happy to have developed another new treatment method, especially one which reduces the carbon footprint of our service, whilst delivering the results our clients demand.

“Many of our clients are increasingly attracted by the efficiency and green credentials of low-energy treatment methods in groundwater remediation. We look forward to developing the technique for future projects.”

Terry Dean, Project Manager at the site and Managing Director of Daineswell Ltd said: “We presented Geo² with a complicated remediation project, which became more complex as time went on.

“We welcomed the use of a low energy, low carbon treatment method on this project, not least because of the potential to deliver real value and impressive results.”