The ALLU processing bucket is helping to transform derelict, contaminated land for a social housing development, without the need to remove materials to landfill.
Using a proven methodology involving an ALLU bucket to fragment the contaminated soil, Portway Remediation – a division of Portway Plant Ltd – is carrying out the treatment by adding bacteria into the soil as it passes through the ALLU bucket.
The new ALLU bucket joins the plant fleet, which already includes another ALLU bucket fitted with cutting teeth, forming part of a new process using green waste and sub soils to produce topsoil.
This method further reduces the cost of importing topsoil for the redevelopment and recycles a waste stream.
Currently Portway Remediation are using both ALLU buckets on site in Leicester to treat 17,000m3 of hydrocarbon impacted material, to allow the redevelopment of the site by Westleigh Developments.
When the first phase of development is completed, 196 new dwellings will be created.
Ian Chambers, a Director of Portway Remediation, which is based in Redditch, said: "ALLU buckets are key to the remediation process for our application.
"The process involves using attachments to each bucket to spray the bacteria onto the soil as it is fragmented.
"Different levels of contamination and soil types require specific attention, and the ALLU buckets allow us to target and deliver the necessary treatments.
"We have been using ALLU buckets for eight years. We have tried different sizes and configurations and found the best for us is the SM3 -17 model.
"This is 1.7 metre wide and has three rotating shafts and we find our Volvo EC210CL excavator copes with very well with this type of machinery."
Neil Bailey, sales engineer of Finlay Central – part of the Finlay Group of companies – said: "Before this bio-remediation process was developed, making good the land would have necessitated the removal of all the contaminated soil to landfill and refilling it with uncontaminated earth.
"The use of ALLU buckets on the site provides a sustainable way of converting brownfield sites, which have been subjected to contamination over the years into land ready for development.
"This process also reduces road usage by heavy lorries transporting materials in and out of the site, an important consideration in built-up residential areas."
The Finlay Group is a supplier of ALLU products, which are developed for environmental care, improving recycling methods and the processing of different materials. Their main products are screener crushers, stabilisation systems and compacting plates.
Developed in Finland, ALLU is recognised for its reliability, versatility and ease of maintenance and service – features all combined with economic efficiency.