Solving South Africa's mounting tyre problem
According to Volco Power’s Wilson Machekanyanga, South Africa is a good market for tyre recycling. The country generates more old tyres than all the other southern African countries put together, which amounts to 300,000 tonnes per year. Machekanyanga said that less than 20% of these tyres are recycled — “60 million are kept at illegal storage sites, where they pose a fire hazard and a breeding ground for mosquitos,” he said.
To address this mounting problem, the South African-based sustainable energy provider plans to build five tyre recycling plants and looked to Australian company Green Distillation Technologies for technology that converts of end-of-life tyres into oil, carbon and steel.
Green Distillation Technologies’ Trevor Bayley said the plants will comprise six tyre processing modules that will process approximately 700,000 old tyres per year into eight million litres of oil, 7700 tonnes of carbon black and 2000 tonnes of steel.
“We have had enquiries from most of the major countries throughout the world but this is the first memorandum of understanding we have signed and clearly our technology can make a significant environmental contribution to South Africa as our process is not only emission free but processes a waste product into high-value oil, carbon and steel.
“All the competing approaches to recycling old tyres either create dangerous emissions or the products produced by the process are of low value. In the case of crumbing or chipping tyres, it doesn’t recycle but simply changes the tyre into small pieces that will still last 500 years and when it is burnt as furnace fuel creates dangerous emissions and a residue ash that has to go to landfill,” he said.
Green Distillation Technologies’ agreement with Volco Power is reported to be worth up to $50 million.
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