Production of recycled HDPE is accelerating fast as milk processors race to meet the 2010 Milk Roadmap targets.
James Donaldson, managing director of recycling group Greenstar WES, told Dairy Reporter that its production of r-HDPE was 350 tonnes in October and is due to rise to 600 tonnes by January.
Government set the UK dairy industry a target of incorporating 10 per cent r-HDPE into plastic milk bottles by 2010. Dairy UK confirmed recently that processers were on their way to meeting that goal.
Donaldson said demand for r-HDPE had been ramped up in recent months and that Greenstar now has supply building up with the all the three major dairies in the UK.
Increasing r-HDPE content to 10 per cent is one thing but industry now has to look forward to increasing the figure to 50 per cent by 2020.
Reaching that long-term goal depends more on investment and commitment than innovation.
No technical barriers
Donaldson said no technical barriers remain to increasing recycled content to 30 or even 50 per cent. What remains to be seen is the whether there is enough money to be made to ensure a return on investment for all partners in the recycling loop.
Producing recycled HDPE that meets the high standards of the dairy industry is an expensive business, demanding significant investment.
Greenstar said that adapting its technology for processing HDPE demanded substantial investment to assure output quality. To help the dairy industry meet the 2020 targets Greenstar and others will have to significantly expand their capacity.
For that to be the case, Donaldson said there has to be a return on investment. But with much of the hard and costly work already done, he said it should be easier to increase r-HDPE content from 10 to 50 per cent than from 0 to 10 per cent.