Siltbuster Shortlisted for Major Environment Award

15 Sep 2014

Siltbuster, the UK’s leading water treatment specialist, has been shortlisted for CIWM’s prestigious UK Sustainability and Resource Industry Awards. The companies MRF Glass Separator is a finalist in the fiercely competitive “Award for Innovation (SME)” category.

Using this technology, Material Recovery Facilities (MRFs) can now recover glass from their waste streams and process it to a standard suitable for re-use, diverting it from landfill and also allowing the material to be traded on the PRN (packaging waste recycling note) market.

With landfill sites under pressure and local authorities keen to improve their rates of recycling, MRFs are looking for new ways to boost their recycling rates. Glass, is an obvious area of focus, but it is notoriously difficult to recover. Whilst whole bottles and large pieces of glass can be easily hand picked, the smaller particles become intermixed with paper, bone, plastic and other pieces of debris, making recovery using traditional process commercially non-viable.

The Gritbuster Glass Separator ingeniously addresses this by using water as a means to separate the light and dense constituents within MRF waste whilst also removing very fine particles that discolour the surface of the glass making further downstream processing using optical sorters unreliable. Dirty glass and water are fed into the top of an inclined revolving barrel, here the glass particles rub against each other creating a natural washing/scrubbing action. As the barrel revolves the lighter fraction containing the plastic, wood, paper and card separate from the glass and become suspended in the water stream or float to the top. The denser glass sinks to the bottom and is carried out of the end of the barrel.

Since launch, the Gritbuster Glass Separator has been used by a number of waste recycling companies and to date over a 1,000 tonnes of MRF waste fines have been treated – resulting in some 900 tonnes of valuable glass being diverted from landfill for further processing and reuse.

Commenting on his company’s shortlisting, Dr Richard Coulton, CEO of Siltbuster said: “To have such a respected organisation such as CIWM put us through to the next stage of their prestigious environmental awards, is a real endorsement.”

The winners will be announced on the evening of 6th November before an audience at an awards dinner at the Grosvenor Square Marriott Hotel, London.