Sorter picks out flexoprint for recycling
A sorting machine for the detection of flexographic printing has been unveiled at the Ecomondo exhibition in Italy by Austrian firm BT-Wolfgang Binder.
Newspapers printed with the flexographic method, particularly used in England and Italy, have not always been recyclable into high-quality paper. But the Redwave flexoprint sorting machine could allow them to be used in this market.
The material is pre-processed by ballistic separators, disc or star screens, separating out other items, before entering the sorting machine. High speed valves and air jets eject identified material.
The machine is able to quantitatively determine kaolin, cellulose, lignin, moisture and flexoprint.
The system separates brown, grey and corrugated cardboard, folded boxes, coloured printed cardboard, synthetic papers and plastic-laminated papers. Materials such as plastics, liquid packaging boards, textiles, and metals are rejected.
Renewable heat pumps offer energy savings
Renewables product supplier Evergreen Energy Solutions has unveiled a range of renewable heat pumps. The Oxfordshire company now offers two types: Ecocent air-to-water heat pumps; and air-source heat pumps.
The Ecocent heat pumps generate domestic hot water from heat within a building that would otherwise be wasted or used inefficiently.
James Woollard, Evergreen managing director, said: “Due to each unit’s high energy efficiency, they are more environmentally friendly than conventional water heating systems, utilising minimal ozone-depleting potential refrigerants.
“Each unit can produce more than 1,000 litres of hot water a day with energy savings of up to 75%.”
The firm’s air-source heat pump is said to have the potential to reduce a building’s CO2 emissions by up to 50% and offer a significant saving on running costs.
Showcasing textiles and their capacity for reuse
Students at the University of Salford, Manchester, have turned discarded denim clothes into products including iPad cases, toys and a rocking chair.
The project was carried out to demonstrate second life opportunities for waste textiles and their capacity for reuse.
A pair of denim sunglasses and a waterproof coat were among other items created by 34 fashion design undergraduates.
The work was displayed at the ‘What a Waste!’ one-day seminar earlier this month at the Museum of Science and Industry in Manchester. Co-hosted by local recycling specialist I&G Cohen and Axion Consulting, the event explored innovative ways of diverting used clothing and textiles from landfill.
Figures show that 350,000 tonnes of clothing are sent to landfill in the UK each year, with a further 70,000 tonnes earmarked for incineration.
I&G Cohen director Phil Geller said: “Upcycling denim by making consumer products like iPad covers shows in a very practical way how we can add value to people’s cast-offs.”
Road repairs that do without new aggregates
The Road Surface Treatments Association has highlighted the sustainability benefits of modern road maintenance techniques that extend the service life of roads without the need for structural reconstruction using new aggregates.
The association said that as warnings of aggregate shortages increased, a range of road surface treatments existed that did not require newly quarried raw materials.
These include mechanical retexturing to restore skidding resistance and extend the service life of a road without reconstruction.
Infrared road repair is another useful treatment that provides a right-first-time reinstatement that reduces the need for new materials by up to 90%. Velocity patching offers sustainable treatment that has minimum wastage as only the defect is repaired and there is no need to dig out the pothole.
At the end of a road’s service life, it can be converted into a linear quarry. Existing road materials are recycled into a structurally sound pavement structure, conserving natural resources and significantly reducing the need for imported new material.
Blow away the snow
The Bobcat winter range has been widened with a number of snow blower attachment models. The extension of the range from eight models to 18 ensures the customer has the opportunity to select a blower that matches its needs.
Hydraulically driven Bobcat snow blowers are designed for cleaning pavements, driveways, parking lots and local roads. They can throw snow up to 15m, and have a rotating chute and deflector to point the snow in the direction desired.
The system combines attachments such as snow blowers, buckets, snow blades and salt and sand spreaders, with a range of skid-steer, compact tracked and all-wheel steer loaders. This gives solutions for snow and ice removal from urban and country roads; pavements; car parks; superstores; driveways; parks; school playgrounds; sports fields and other areas.
Bobcat offers optional steel tracks to go over the tyres on the wheeled loaders as well as individual tyre snow chains.