Glass recycling in the South Island has seen major improvements recently with over $174,000 in grants being invested by
the Glass Packaging Forum (GPF) over the past two years.
These grants have been an important factor in helping tens of thousands of tonnes of used glass bottles and jars from
the South Island get recycled in Auckland each year, says GPF scheme manager Dominic Salmon.
“One of the primary aims of the GPF is to use the levies from our members to aid in the recovery of glass bottles and
jars so they can be recycled. The South Island faces unique challenges in terms of collecting and transporting recycled
glass, but we have seen investment in key projects make a big impact.”
These have ranged from an innovative, Kiwi-designed piece of machinery at 5R Solutions in Christchurch to bottle banks
in Queenstown, significantly increased storage capacity in Westland, Kaikoura, Tasman and Wanaka, and the expansion of
rural recycling in Marlborough.
Dominic says it’s great to see work being done by councils, such as Queenstown Lakes District Council which is
implementing a new kerbside glass collection service from July 1 in Queenstown and Wanaka. As a result, nearly 2000
tonnes of glass is expected to be diverted from landfill.
The GPF also works with councils and local recyclers to help improve recycling systems and efficiency. “Establishing
hubs where glass can be aggregated is the best way to make transport viable. 5R Solutions in Christchurch, which
benefited from multiple GPF grants, is a good example of that, and we are looking at option for establishing a hub in
the lower South Island too,” Dominic says.
“Increasing storage capacity is also critical to a viable and efficient collection and recycling model,” says Dominic.
“It means fewer freight movements and more cost-effective transport which is why the GPF has provided investment for
this in Westland, Tasman, Alexandra, Kaikoura and Wanaka.”
Glass is the most sustainable packaging material in New Zealand, he says. “It is infinitely recyclable and is recycled
right here in New Zealand, at glass bottle and jar manufacturer O-I New Zealand in Auckland. The average recycled glass
content for O-I New Zealand is 67 percent.”
Using cullet in production reduces the need for virgin material – in fact, 1kg of recycled glass replaces 1.2kg of
virgin materials. It also means the furnaces can run at a lower temperature so there are less emissions, Dominic says.
According to the latest information from O-I, every 10 percent of recycled glass content reduces emissions by 5 percent
and generates energy savings of approximately 3 percent.
“A great little statistic we’d love people to keep in mind when doing their recycling is that the energy saved by
recycling a single bottle could light a 15-watt low-energy light bulb for 24 hours,” Dominic says.
ends