Skip to main content

New system helps recycle road grit

UK firm Siltbuster is now offering a larger and more powerful wet waste separation system. The new Gritbuster WT-250 is a larger version of the company’s proven technology for material washing, separation and aggregate recovery. The Gritbuster WT-250 is aimed at the road sweeping & trommel fines waste recycling markets and is capable of handling in excess of 25tonnes/hour. Using well established wet separation processes, the plant separates feedstocks into washed gravel and sand products. Raw material
May 13, 2015 Read time: 3 mins
The Gritbuster facility recycles road sweepings for use
UK firm 8102 Siltbuster is now offering a larger and more powerful wet waste separation system. The new Gritbuster WT-250 is a larger version of the company’s proven technology for material washing, separation and aggregate recovery.

The Gritbuster WT-250 is aimed at the road sweeping & trommel fines waste recycling markets and is capable of handling in excess of 25tonnes/hour. Using well established wet separation processes, the plant separates feedstocks into washed gravel and sand products.

Raw material can be loaded using a wheeled loader or telescopic loader from existing stockpiles and a screw feed auger is fitted that can handle both dry and wet feedstocks. The unit has a wet trammel that is specifically designed to wash and separate aggregate, while minimising the risk of contaminating sand with organic matter and this design helps to produce a clean sand product. In addition, an integral hydraulic density separator is used to separate coarse aggregate from plastic or organic matter for example, increasing recycling potential.

The new unit allows the recovered sand and gravel to be reused as non-structural fill or secondary aggregate if processed in accordance with the WRAP Protocol. The system also minimises fresh water requirements by operating in a closed loop when used with a Siltbuster Water Treatment Plant and Filter Press. And its compact design allows for installation on existing sites and integration with existing processes.

A key aspect of the new design is the integral hydraulic density separator. The firm says that this makes the new Gritbuster WT-250 highly suitable for handling trommel fines and other drier feed material.  The hydraulic density separator is able to separate the larger material fractions by density rather than just physical size.  This means heavier recyclables such as stone and aggregate are recovered in a cleaner recyclable form, from the lighter recyclables such as plastic, paper, wood and other floating materials. This has advantages in terms of LOI reduction, and it also means the lighter items can themselves be recovered and go for recycling.

There is a serious cost benefit too as it means that materials that would previously have had to be dumped at costly landfill sites can now be recovered and then sold as a product.

The new Gritbuster WT-250 can be supplied on its own or with a packaged Water Treatment & Recycling System and Filter Press.

For more information on companies in this article

Related Content

  • Crushing and screening advances introduced
    June 10, 2019
    New developments in crushing and screening equipment as well as washing technology will deliver benefits for materials production - Mike Woof writes Competition is tough in the market for quarry material processing equipment, with key firms introducing new systems that are said to boost capacity and performance. Firms offering crushing and screening equipment have expanded their respective ranges, offering additional capabilities for these segments. Mobility and versatility have been key factors in the d
  • Separators boost waste re-use
    June 13, 2012
    A London-based construction material recycling centre says its decision to use a pair of Max X Tract Density Separators is helping them cash in on perceived waste. The 777 Recycling Centre is using the separators supplied by Cheshire-based Dig A Crusher at its state-of-the-art site just outside Croydon. Forming the final stage of 777 Recycling Centre’s resource extraction process, the Waste Systems Ltd-built Max X Tract machines are recovering metals from biomass material while also removing plastics and pa
  • Gully and road waste is still overlooked and needlessly sent to landfill
    February 16, 2015
    Road sweepings and gully waste could be recycled, diverting it away from landfill reports *Peter Craven. Highway authorities across Europe have been stockpiling millions of tonnes of rock salt and grit which is destined to be spread onto the road network during the winter months in order to keep them clear. But according to Craven, road sweepings and general gully waste provide a ready source of these materials, as well as delivering significant environmental and financial savings. Road sweepings and gully
  • Trommel fine clampdown boosts Max X demand
    November 30, 2012
    A recent HMRC clampdown on UK trommel fines is said to have led to sky-high demand for Dig A Crusher’s Max X Tract Density Separator. Despite being part of the Dig A Crusher product line for the past few years, last year saw only 11 models delivered to customers. Although their use was pioneered by forward-thinking recycling companies keen to extract every ounce of value from their waste streams, the vast majority of firms were content with paying the £2.50 Landfill Tax imposed on the trommel waste fines th